(12) United States Patent (10) Patent No.: US 7,776,306 B2 Miller Et Al
USOO7776306 B2 (12) United States Patent (10) Patent No.: US 7,776,306 B2 Miller et al. (45) Date of Patent: Aug. 17, 2010 (54) LOW ENERGY METHOD OF PREPARING (56) References Cited BASIC COPPER CARBONATES U.S. PATENT DOCUMENTS (75) Inventors: Jeff Miller, Hancock, MI (US); Brian 2,536,096 A 1/1951 Rowe Miller, Lake Linden, MI (US); Nader 2,536,097 A 1/1951 Percy Mazloom, Bay City, MI (US) 3,635,668 A 1/1972 Barker 3,971,652 A 7/1976 Bryson (73) Assignee: Peninsula Copper Industries 4490,337 A 12/1984 Richardson Incorporated, Hubbell, MI (US) 4,944.935 A 7, 1990 Langner et al. 6,596,246 B2 7/2003 Huato et al. (*) Notice: Subject to any disclaimer, the term of this 7,411,080 B2 8, 2008 Zhao patent is extended or adjusted under 35 20040191143 A1 9/2004 Richardson et al. U.S.C. 154(b) by 0 days. 2007,0269362 A1 11/2007 Zhao (21) Appl. No.: 12/466,527 FOREIGN PATENT DOCUMENTS (22) Filed: May 15, 2009 FR 2 328 661 A1 5, 1977 (65) Prior Publication Data US 2009/0324482 A1 Dec. 31, 2009 Primary Examiner Stuart Hendrickson Assistant Examiner Richard M. Rump Related U.S. Application Data (74) Attorney, Agent, or Firm Leydig, Voit & Mayer, Ltd. (63) Continuation of application No. 12/163.560, filed on (57) ABSTRACT Jun. 27, 2008, now abandoned. (51) Int. C. A method of forming basic copper carbonates includes pro COIB 3L/24 (2006.01) viding an aqueous solution comprising copper(II), ammonia, (52) U.S.
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