DOCSLIB.ORG

BY Hby Gaula 9

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
BY Hby Gaula 9 Aug. 25, 1953 D. W. colleR 2,650,248 CONCENTRATION OF AQUEOUS. ACONITIC ACID SOLUTIONS Filed March 5, 1950 s N N is 8 uunOO uo. 901x3 C s S. s JunoC) 5d 5 UO43Dux3 2 8 S 2 1) G RO () o has O. e foL o uunOO UooDux INVENTOR. DONALD W, COLLER SUD. eÖDOS BY hby Gaula 9. UDueuebe ATTORNEY. Patented Aug. 25, 1953 2,650,248 UNITED STATES PATENT office 2,650,248 CONCENTRATION OF ACUEOUS ACONTIC ACD SOLUTIONS Donald W. Collier, Philadelphia, Pa., assignor to The Sharples Corporation, a corporation of Delaware Application March 15, 1950, serial No. 149,864 6 Claims. (CI. 260-537) 2 This invention relates to a process and appara this method the blackstrap molasses of about 85 tus for the recovery of substances from relative Brix is suitably diluted with Water to about 50 ly dilute Solutions thereof. More Specifically, the Brix and is heated to about 50° C. Blackstrap invention relates to the recovery of aconitic acid mola SSes is the by-product of raW Sugar manu from relatively dilute aqueous Solutions contain- 5 facture. It is a heavy Wiscous liquid Separated ing impurities and foreign substances by contact- from the final low grade maSSecuite from which ing the aqueous solution with an organic Solvent no further Sugar can be crystallized by the usual to form two phases in which the aconitic acid is methods: The density of blackstrap molasses concentrated in the non-aqueous: phase, there- ranges from 85 to 92 Brix, containing total after adding hydrocarbon type solvent to the non-0 solids by drying of 77 to 84%. The SucroSeco aqueous phase which is miscible therewith and tent varies by Weight between 25 and 40% and the then contacting the mixed non-aqueous phase reducing Sugars from 30 to 12% With total Sugars with a small volume of water to form tWO phases about 50%. It contains anywhere from 0.5 to 5% in which the aconitic acid is concentrated in the on Brix of aconitic acid, and Small amounts of aqueous phase. other organic acids such as succinic acid and ox According to my invention I provide a system alic acid, and also substantial amounts of mineral and method for continuously recovering a sub- salts such as the chlorides, Sulfates and phOS stance, such as aconitic acid, without substantial phates of potassium, calcium, magnesium and loss of the organic solvents used by providing for Sodium. The molasses liquor is treated in a three the cyclic recovery of the solvents in my system 20 stage counter-current manner, for example, with and contacting the stream of aqueous Solution an anion exchange resin containing adsorbed Sul with a counter-current stream of a Substantially furic acid. This resin may be Ionac A-300, sold water-immiscible organic solvent in a plurality by American Cyanamid Company, New York, of stages. The concentration of the Substance, N.Y., which is an aliphatic amine phenol-formal Such as a conitic acid, is increased in a double ex- 25 dehyde resin. As an illustration, if the molasses traction system by virtue of the change in its dis- contains about 2.4% aconitic acid on Brix, the tribution tendency between Water and an organic dry base regenerated weight of the resin used is phase brought about by the addition of the hy- conveniently about 7% of the weight of the drocarbon type solvent to the organic phase con- diluted molasses. Line is added to the stage in taining the aconitic acid so that the final aqueous 30 which the anion exchanger first contacts the Solution issuing fronny System is of a greater molasses to adjust the pH Within a pH range concentration as compared with the untreated of about 4 to about 6 and preferably to about 5.0, aqueous solution fed to the system. the point, at Which the Selectivity of the ex Aconitic acid is found in substantial amounts changer for aconitic acid Over mineral acids is at in blackstrap molasses and Sorgo juices in 35 a maximum. Reference is made to co-pending amounts as high as 5% by Weight of solids. The application Serial No. 150,548, filed March 18, aconitic acid can be separated from the molasses 1950, by Hugh G. Bryce wherein such procedure by an anion-exchange material which is then is described and claimed. Each stage comprises treated to produce an aqueous solution of aconitic a steel treating tank with agitator which can be acid containing other impurities such as mineral 40 heated with live steam to maintain the tempera acids, organic substances, and coloring matters ture of about 50 C. Separation of molasses and derived from the molasses. According to my in anion, exchange resin between stages is accorn vention such solution of aconitic acid is extracted plished by the use of vibrating screens. The With a suitable organic Solvent, Such as iso- molasses Solution leaving the third stage is passed phorone, and the extracted solution is further 45 through a centrifuge to remove the calcium Sull treated to isolate substantially pure aconitic acid. fate which is formed during the treat. This Further features and advantages of my inven- calcium sulfate is dropped into a settling tank tion will be evident from the following illustra- filled with Water, to dissolve the adhering tive embodiment of my invention in connection 50 mola SSes from the Solid. The SWeet Water may with the accompanying drawing. A solution con be then used in diluting the treated molasses fur taining aconitic acid to be treated in accordance ther to prepare it for fermentation, if desired, with my invention may, for example, be produced While the solids are discarded through a valve in accordance. With the method disclosed in my in the botton of the tank, which is operated copending application, Serial No. 149,863, filed periodically. March 15, 1950. According to an embodiment of The exchange resin, having passed through the 2,650,248 3 4. three stages, is washed on a vibrating screen to and benzene separated in settling tank A is fed remove the adhering molasses and is dropped into by line 9 and mixed in line 9 with a similar the regeneration tank. The sweet water result mixture of benzene and isophorone and finally ing from the Wash is used in diluting the raW mixed in pump 21 and line 22 with the isopho molasses. The pH in the regeneration tank is role stream from column . The amount of ben maintained at about 0.9 and not exceeding 2.0, Zene used is regulated to be about 1.5 times the by continuous addition of H2SO4. The mixture volume of isophorone fiowing through line 4t, of resin and regenerant solution which now con to a centrifuge 23. The addition of benzene re tains most of the aconitic acid that was on the Sults in the formation of a small amount of a resin is separated on a vibrating screen and the O Second phase of tarry liquid which is conveyed exchange resin is Washed counter-currently in in the stream of isophorone and benzene and fed three stages on a vibrating screen to remove the to centrifuge 23. This separation may be a C remainder of the aconitic acid and some of the complished in a settling tank instead of a centri Sulfuric from the resin. The resin is now ready fuge. The tarry phase is separated by the cen to be reused in the counter-current adsorption trifuge and is fed by line 24 to a settling tank B train. The wash-water is used as make-up water through which a water stream flows supplied by in the regeneration tank. r line 8. The regenerant solution separated from the The aqueous phase from tank B, containing exchanger on a vibrating screen, is then sub Some Water-soluble impurities and a Small jected to purification and recovery in accordance 20 amount of aconitic acid is fed to line 25 to join with the procedure of the present invention. the stream in line. 2 fed from the storage tank Referring to the drawing, the raw aqueous so f). As the tarry phase fed to settling tank B lution containing Say about 2.3% aconitic acid contacts the water therein it solidifies and is and impurities, as produced for example in ac- - discharged periodically from the bottom of the cordance with the method previously described, 25 Settling tank B and is discarded. ... ' is stored in a storage tank 0 from which it is The main stream of clarified isophorone and fed at a controlled rate by pump and line 2 benzene coming from the centrifuge 23 is fed to the top of an extraction column , preferably by line 26 and pump 27 to the bottom of extrac of the type which is internally agitated and pro tion column 2 which is preferably a five plate vided with say ten plates. A stream of iso 30 internally agitated column. Water is fed to the phorone is fed by line 56 to the bottom of the top of column 2 by line 8' in counter-current extraction column f in counter-current flow, flow at a volume rate 42 of that of the organic preferably at a rate 0.3 that of the aqueous feed stream. The presence of benzene in the isopho rate. This treatment strips aconitic acid and rone now causes the aconitic acid to go back in Some inpurities from the aqueous solution, 35 to Solution in the Water and as a result of the leaving behind the stripped residual aqueous SO faWOrable distribution COnStants in both extracts lution containing some sulfuric acid, a small tions, the concentration of the aconitic acid is amount of isophorone and other impurities.
Load more

Recommended publications
  • Report of the Advisory Group to Recommend Priorities for the IARC Monographs During 2020–2024
    IARC Monographs on the Identification of Carcinogenic Hazards to Humans Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 CONTENTS Introduction ................................................................................................................................... 1 Acetaldehyde (CAS No. 75-07-0) ................................................................................................. 3 Acrolein (CAS No. 107-02-8) ....................................................................................................... 4 Acrylamide (CAS No. 79-06-1) .................................................................................................... 5 Acrylonitrile (CAS No. 107-13-1) ................................................................................................ 6 Aflatoxins (CAS No. 1402-68-2) .................................................................................................. 8 Air pollutants and underlying mechanisms for breast cancer ....................................................... 9 Airborne gram-negative bacterial endotoxins ............................................................................. 10 Alachlor (chloroacetanilide herbicide) (CAS No. 15972-60-8) .................................................. 10 Aluminium (CAS No. 7429-90-5) .............................................................................................. 11
    [Show full text]
  • Safety Data Sheets
    SAFETY DATA SHEETS According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition Version: 1.0 Creation Date: Feb. 6, 2018 Revision Date: Feb. 6, 2018 1. Identification 1.1 GHS Product identifier Product name Isophorone 1.2 Other means of identification Product number A601956 Other names Isooctopherone 1.3 Recommended use of the chemical and restrictions on use Identified uses Used for research and development only.Isophorone is used mainly as a solvent for concentrated vinyl chloride/acetate- based coating systems for metal cans, other metal paints, nitrocellulose finishes, and printing inks for plastics. Isophorone is also used in some herbicide and pesticide formulations and in adhesives for plastics, polyvinylchloride, and polystyrene materials. Isophorone is an intermediate in the synthesis of 3,5-xylenol, 3,3,5-trimethylcyclohexanol, and plant growth retardants. Uses advised against no data available 1.4 Supplier's details Company Sangon Biotech (Shanghai) Co., Ltd. Address 698 Xiangmin Road, Songjiang, Shanghai 201611, China Telephone +86-400-821-0268 / +86-800-820-1016 Fax +86-400-821-0268 to 9 1.5 Emergency phone number Emergency phone +86-21-57072055 number Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). 2. Hazard identification 2.1 Classification of the substance or mixture Acute toxicity - Oral, Category 4 Acute toxicity - Dermal, Category 4 Isophorone Page 1 of 11 Eye irritation, Category 2 Specific target organ toxicity – single exposure, Category 3 Carcinogenicity, Category 2 2.2 GHS label elements, including precautionary statements Pictogram(s) Signal word Warning Hazard statement(s) H302 Harmful if swallowed H312 Harmful in contact with skin H319 Causes serious eye irritation H335 May cause respiratory irritation H351 Suspected of causing cancer Precautionary statement(s) Prevention P264 Wash ..
    [Show full text]
  • Ultraviolet Light/Hydrogen Peroxide, Fenton's Reagent, and Titanium
    ^^ f 1 POOR LEGIBILITY ONE OR MORE PAGES IN THIS DOCUMENT ARE DIFFICULT TO READ DUE TO THE QUALITY OF THE ORIGINAL L J:\TM\AR\KXHLTM4 JULY11.M9S SFUND RECORDS CTR 81356 nd, the HAZARDOUS WASTE & HAZARDOUS MATERIALS jjgration Volume 10, Number 2, 1993 Mary Ann Liebert, Inc., Publishers [are not pose that Chemical Oxidation Technologies: ndfills need Ultraviolet Light/Hydrogen Peroxide, , them, f design Fenton's Reagent, and Titanium i them, lyard Dioxide-Assisted Photocatalysis tn with be RAJAGOPALAN VENKATADRI and ROBERT W. PETERS ods of sting, Energy Systems Division sfiiel Argonne National Laboratory tog of 9700 South Cass Avenue Ibeof Argonne, IL 60439 after tmay ;the ould ABSTRACT jable The application status and potential of three chemical oxidation treatment methods which generate powerful oxidants (hydroxyl radicals): ultra violet light (UV)/hydrogen peroxide (R^Oa) avity process, Fenton's reagent treatment, and titanium dioxide (TiO2)-assisted photocatalytic degradation, ste are described and discussed. These oxidation methods are known to effectively degrade and, in Item. several cases, mineralize contaminants ranging from inorganic compounds (such as cyanides) to ents chlorinated aliphatic compounds and complex aromatic compounds in reaction times on the order of a live. few minutes to a few hours. Of the three oxidation systems discussed, the technology for the edit UV/H2O2 process is the most advanced, with numerous successful full-scale treatment units already in JrML existence. Applications of both the Fenton's reagent and TiO2-assisted photodegradation processes are currently being developed, with the concepts proven in numerous laboratory-scale studies for a wide range of contaminants.
    [Show full text]
  • Isophorone (Cas No
    NATIONAL TOXICOLOGY PROGRAM Technical Report Series No. 291 c TOXICOLOGY AND CARCINOGENESIS STUDIES OF ISOPHORONE (CAS NO. 78-59-1) IN F344/N RATS AND B6C3F1 MICE (GAVAGE STUDIES) U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service National Institutes of Health NATIONAL TOXICOLOGY PROGRAM The National Toxicology Program (NTP), established in 1978, develops and evaluates scientific information about potentially toxic and hazardous chemicals. This knowledge can be used for protecting the health of the American people and for the primary prevention of disease. By bringing together the relevant programs, staff, and resources from the U.S.Public Health Service, DHHS, the National Toxicology Program has centralized and strengthened activities relating to toxicology research, testing and test developmentlvalidation efforts, and the dissemination of toxicological information to the public and scientific communities and to the research and regulatory agencies. The NTP is made up of four charter DHHS agencies: the National Cancer Institute (NCI), Naiional Institutes of Health; the National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health; the National Center for Toxicological Research (NCTR), Food and Drug Administration; and the National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control. In July 1981, the Carcino- genesis Bioassay Testing Program, NCI, was transferred to the NIEHS. Isophorone, NTP TR 291 NTP TECHNICAL REPORT ON THE TOXICOLOGY AND CARCINOGENESIS STUDIES OF ISOPHORONE (CAS NO. 78-59-1) IN F344/N RATS AND B6C3F1 MICE (GAVAGE STUDIES) NATIONAL TOXICOLOGY PROGRAM P.O. Box 12233 Research Triangle Park, NC 27709 January 1986 NTP TR 291 NIH Publication No.
    [Show full text]
  • Ambient Water Quality Criteria for Isophorone
    United States Office of Water EPA 440/5-80-056 Environmental Protection Regulations and Standards October 1980 Agency Criteria and Standards Division Washington DC 20460 EPA Ambient Water Quality Criteria for lsophorone AMBIENT WATERQUALITY CRITERIA FOR ISOPHORONE Prepared By U.S. ENVIRONMENTALPROTECTION AGENCY Office of Water Regulations and Standards Criteria and Standards Division Washington, D.C. Office of Research and Development Environmental Criteria and Assessment Office Cincinnati, Ohio Carcinogen Assessment Group Washington, D.C. Environmental Research Laboratories Corvalis, Oregon Duluth, Minnesota Gulf Breeze, Florida Narragansett, Rhode Island i DISCLAIMER This report has been reviewed by the Environmental Criteria and Assessment Office, U.S. Environmental Protection Agency, and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. AVAILABILITY NOTICE This document is available to the public through the National Technical Information Service, (NTIS), Springfield, Virginia 22161. ii FOREWORD Section 304 (a)(1) of the Clean Water Act of 1977 (P.L. 95-217), requires the Administrator of the Environmental Protection Agency to publish criteria for water quality accurately reflecting the latest scientific knowledge on the kind and extent of all identifiable effects on health and welfare which may be expected from the presence of pollutants in any body of water, including ground water. Proposed water quality criteria for the 65 toxic pollutants listed under section 307 (a)(1) of the Clean Water Act were developed and a notice of their availability was published for public comment on March 15, 1979 (44 FR 15926), July 25, 1979 (44 FR 43660), and October 1, 1979 (44 FR 56628).
    [Show full text]
  • Technical Background Document (U.S
    Part 5: CHEMICAL-SPECIFIC PARAMETERS Chemical-specific parameters required for calculating soil screening levels include the organic carbon normalized soil-water partition coefficient for organic compounds (Koc), the soil-water partition coefficient for inorganic constituents (Kd), water solubility (S), Henry's law constant (HLC, HN), air diffusivity (Di,a), and water diffusivity (Di,w). In addition, the octanol-water partition coefficient (Kow) is needed to calculate Koc values. This part of the background document describes the collection and compilation of these parameters for the SSL chemicals. With the exception of values for air diffusivity (Di,a), water diffusivity (Di,w), and certain Koc values, all of the values used in the development of SSLs can be found in the Superfund Chemical Data Matrix (SCDM). SCDM is a computer code that includes more than 25 datafiles containing specific chemical parameters used to calculate factor and benchmark values for the Hazard Ranking System (HRS). Because SCDM datafiles are regularly updated, the user should consult the most recent version of SCDM to ensure that the values are up to date. 5.1 Solubility, Henry's Law Constant, and Kow Chemical-specific values for solubility, Henry's law constant (HLC), and Kow were obtained from SCDM. In the selection of the value for SCDM, measured or analytical values are favored over calculated values. However, in the event that a measured value is not available, calculated values are used. Table 36 presents the solubility, Henry's law constant, and Kow values taken from SCDM and used to calculate SSLs. Henry's law constant values were available for all but two of the constituents of interest.
    [Show full text]
  • Maine Remedial Action Guidelines (Rags) for Contaminated Sites
    Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites (RAGs) Effective Date: May 1, 2021 Approved by: ___________________________ Date: April 27, 2021 David Burns, Director Bureau of Remediation & Waste Management Executive Summary MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION 17 State House Station | Augusta, Maine 04333-0017 www.maine.gov/dep Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites Contents 1 Disclaimer ...................................................................................................................... 1 2 Introduction and Purpose ............................................................................................... 1 2.1 Purpose ......................................................................................................................................... 1 2.2 Consistency with Superfund Risk Assessment .............................................................................. 1 2.3 When to Use RAGs and When to Develop a Site-Specific Risk Assessment ................................. 1 3 Applicability ................................................................................................................... 2 3.1 Applicable Programs & DEP Approval Process ............................................................................. 2 3.1.1 Uncontrolled Hazardous Substance Sites ............................................................................. 2 3.1.2 Voluntary Response Action Program
    [Show full text]
  • Polyurethane Coating Composition
    turopaisches Patentamt (19) European Patent Office © Publication number: 0 263 298 Office europeen des brevets A1 © EUROPEAN PATENT APPLICATION © Application number: 87112643.9 © C08G 18/12 Int. CI.": , C08G 18/66 , C08G - 18/72 , C09D 3/72 © Date of filing: 29.08.87 ® Priority: 08.09.86 US 904732 © Applicant: W.R. GRACE & CO. Grace Plaza 1114 Avenue of the Americas © Date of publication of application: New York New York 10036(US) 13.04.88 Bulletin 88/15 © Inventor: Vu, Cung © Designated Contracting States: 18805 Still Meadows Court AT BE CH DE ES FR GB GR IT LI LU NL SE Gaithersburg Maryland 20879(US) © Representative: UEXKULL & STOLBERG Patentanwalte Beselerstrasse 4 D-2000 Hamburg 52(DE) Polyurethane coating composition. This invention relates to a moisture curable, isocyanate terminated, branched prepolymer which is the reaction product of (a) an alcohol having two or three -OH groups, (b) a hydrophobic polymeric diol or triol and (c) at least one polyisocyanate, said prepolymer having an NCO content in the range 0.3 to 1 .0 meq/g. Exposure Df the prepolymer as a coating on a substrate to moisture under atmospheric conditions results in a cured soating having excellent adhesion to the substrate and excellent abrasion resistance. 30 3) N y) £> N D a. jj «rax Copy Centre 0 263 298 POLYURETHANE COATING COMPOSITION BACKGROUND OF THE INVENTION This invention relates to a process for forming a crosslinked polyurethane. More particularly, this 5 invention relates to a crosslinked, polyurethane of 100% solids content which can be formulated into products usable in the coatings field.
    [Show full text]
  • Chemical Compatibility Chart
    Chemical Compatibility Chart 1 Inorganic Acids 1 2 Organic acids X 2 3 Caustics X X 3 4 Amines & Alkanolamines X X 4 5 Halogenated Compounds X X X 5 6 Alcohols, Glycols & Glycol Ethers X 6 7 Aldehydes X X X X X 7 8 Ketone X X X X 8 9 Saturated Hydrocarbons 9 10 Aromatic Hydrocarbons X 10 11 Olefins X X 11 12 Petrolum Oils 12 13 Esters X X X 13 14 Monomers & Polymerizable Esters X X X X X X 14 15 Phenols X X X X 15 16 Alkylene Oxides X X X X X X X X 16 17 Cyanohydrins X X X X X X X 17 18 Nitriles X X X X X 18 19 Ammonia X X X X X X X X X 19 20 Halogens X X X X X X X X X X X X 20 21 Ethers X X X 21 22 Phosphorus, Elemental X X X X 22 23 Sulfur, Molten X X X X X X 23 24 Acid Anhydrides X X X X X X X X X X 24 X Represents Unsafe Combinations Represents Safe Combinations Group 1: Inorganic Acids Dichloropropane Chlorosulfonic acid Dichloropropene Hydrochloric acid (aqueous) Ethyl chloride Hydrofluoric acid (aqueous) Ethylene dibromide Hydrogen chloride (anhydrous) Ethylene dichloride Hydrogen fluoride (anhydrous) Methyl bromide Nitric acid Methyl chloride Oleum Methylene chloride Phosphoric acid Monochlorodifluoromethane Sulfuric acid Perchloroethylene Propylene dichloride Group 2: Organic Acids 1,2,4-Trichlorobenzene Acetic acid 1,1,1-Trichloroethane Butyric acid (n-) Trichloroethylene Formic acid Trichlorofluoromethane Propionic acid Rosin Oil Group 6: Alcohols, Glycols and Glycol Ethers Tall oil Allyl alcohol Amyl alcohol Group 3: Caustics 1,4-Butanediol Caustic potash solution Butyl alcohol (iso, n, sec, tert) Caustic soda solution Butylene
    [Show full text]
  • 2011Al-Ghamdiphd.Pdf
    Al-Ghamdi, Khalaf (2011) An investigation of heterogeneous base catalysed acetone conversion. PhD thesis. http://theses.gla.ac.uk/2878/ Copyright and moral rights for this thesis are retained by the author A copy can be downloaded for personal non-commercial research or study, without prior permission or charge This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the Author The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the Author When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given Glasgow Theses Service http://theses.gla.ac.uk/ [email protected] 1 An investigation of heterogeneous base catalysed acetone conversion Khalaf Al-Ghamdi Submitted in fulfilment of the requirements for the Degree of Doctor of Philosophy School of Chemistry College of Science and Engineering 2011 2 Abstract A series of materials have been compared for their activity in the base catalysed condensation of acetone. Activities have been compared after extended times on stream (18 h) and under a H2 containing atmosphere at elevated pressure which is designed to mimic conditions applicable for the single stage transformation of acetone to MIBK. In general, catalysts without a strong hydrogenation function have been screened and so mesityl oxide is the dominant reaction product. However, 1%Pd5%MgO/SiO2 does exhibit high selectivity towards MIBK, demonstrating that single-stage conversion is possible under the conditions investigated. Catalytic activity is found to be a strong function of the material tested.
    [Show full text]
  • Method for Making Methylated Phenol from Methylated Cyclohexeneone
    Europaisches Patentamt 3 European Patent Office © Publication number: 0 163 204 Office europeen des brevets A1 © EUROPEAN PATENT APPLICATION © Application number: 85106004.6 © IntCI.4: C 07 C 39/07 C 07 C 39/08, C 07 C 37/50 @ Date of filing: 15.05.85 © Priority: 24.05.84 US 613545 © Applicant: GENERAL ELECTRIC COMPANY 1 River Road Schenectady New York 12305(US) © Date of publication of application: 04.12.85 Bulletin 85/49 © Inventor: Talley, John Jeffrey 10 Wheeler Drive © Designated Contracting States: Clifton Park New York 12065IUS) DE NL © Representative: Catherine, Alain General Electric - Deutschland Munich Patent Operations Frauenstrasse 32 D-8000Munchen 5(DE) © Method for making methylated phenol from methylated cyclohexeneone. © A method is provided for making 3, 5-dimethylphenol from isophorone by catalytic demethanation using as a catalyst, the calcination residue of a mixture of magnesium ! carbonate and/or magnesium hydroxide and a manganese compound. o CM M CD UJ Croydon Priming Company Ltd Prior to the present invention various methods were available for making methylated phenols such as 3,5-xy- lenol from isophorone. Methylated phenols such as 3,5-di- methylphenol are important as intermediates for the prepara- tion of antibacterials such as 4-chloro-3,5-dimethylphenol. For example, B.V. Maatschappij, German Offen. 2,529,773 shows the conversion of isophorone to 3,5-dimeth- ylphenol in the gas phase using a Co-MoK catalyst on alumi- num oxide, where the catalyst was calcined at 900°-1200°C. There is shown in U.S. Patent 3,803,249 a method of making 3,5-xylenol by acetone condensation.
    [Show full text]
  • 3-Aminomethyl-3,5,5-Trimethylcyclohexylamine
    OECD SIDS 3-AMINOMETHYL-3,5,5-TRIMETHYLCYCLOHEXYLAMINE FOREWORD INTRODUCTION 3-Aminomethyl-3,5,5-trimethylcyclohexylamine CAS N°: 2855-13-2 UNEP PUBLICATIONS 1 OECD SIDS 3-AMINOMETHYL-3,5,5-TRIMETHYLCYCLOHEXYLAMINE SIDS Initial Assessment Report For SIAM 18 Paris, France, April 20–23, 2004 1. Chemical Name: 3-Aminomethyl-3,5,5-trimethylcyclohexylamine 2. CAS Number: 2855-13-2 3. Sponsor Country: Germany Contact Point: BMU (Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit) Contact person: Prof. Dr. Ulrich Schlottmann Postfach 12 06 29 D- 53048 Bonn-Bad Godesberg 4. Shared Partnership with: 5. Roles/Responsibilities of the Partners: • Name of industry sponsor 3-Aminomethyl-3,5,5-trimethylcyclohexylamine Consortium /consortium Degussa AG, BASF AG, DuPont Chemical Solutions Enterprise • Process used see next page 6. Sponsorship History • How was the chemical or by ICCA-Initiative category brought into the OECD HPV Chemicals Programme ? 7. Review Process Prior to last literature search (update): the SIAM: 22 October 2003 (Human Health): databases medline, toxline; search profile CAS-No. and special search terms 27 October 2003 (Ecotoxicology): databases CA, biosis; search profile CAS-No. and special search terms 8. Quality check process: As basis for the SIDS-Dossier the IUCLID was used. All data have been checked and validated by BUA. 9. Date of Submission: Deadline for circulation: 23 January 2004 10. Date of last Update: 2 UNEP PUBLICATIONS OECD SIDS 3-AMINOMETHYL-3,5,5-TRIMETHYLCYCLOHEXYLAMINE 11. Comments: OECD/ICCA - The
    [Show full text]