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Expired
Application number
GB634827A
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Individual
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Individual
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Priority to GB634827ApriorityCriticalpatent/GB285260A/en
Publication of GB285260ApublicationCriticalpatent/GB285260A/en
C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G9/00—Compounds of zinc
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Manufacture And Refinement Of Metals
(AREA)
Abstract
285,260. Laury, N. A. March 7, 1927. Zinc carbonate.-Roasted zinc ore is heated at a temperature of 180‹ F. in a 20 per cent aqueous solution of ammonium sulphate, the clear solution being separated by settling, cooled td a temperature not higher than 40‹ F., and saturated with carbon dioxide at a pressure of 20 pounds per square inch in a closed vessel. The precipitated zinc carbonate is separated and washed, while the solution is returned to the leaching tank.
GB634827A1927-03-071927-03-07Improvements in or relating to methods of precipitating zinc carbonate
ExpiredGB285260A
(en)