US2011174111A1PendingUtilityA1
Method of mineral raw materials processing
Assignee: SINEGRIBOV VIKTOR ANDREEVICHPriority: Sep 29, 2008Filed: Sep 8, 2009Published: Jul 21, 2011
Est. expirySep 29, 2028(~2.1 yrs left)· nominal 20-yr term from priority
Inventors:Viktor Andreevich SinegribovAndrei Filippovich SmetannikovOksana Afanasievna SinegribovaPavel Yurievich NovikovMikhail Aleksandrovich AntyufeevArkadiy Evgenievich Krasnoshtein
C22B 1/24C22B 11/042C22B 1/02C22B 26/00C22B 11/021C22B 11/06Y02P10/20C22B 3/10C22B 11/044C22B 7/007
30
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Claims
Abstract
The invention relates to methods of precious metals recovery from raw materials containing chlorides of earth metals, for example slimes. This method comprises the steps of cinder processing carried out in two steps. At the first step, a secondary enrichment by water washing is carried out with a ratio (S:L) ranging from 1:0.7 to 1:2.5. Then, at the second step, the washed cinder is leached by hydrochloric acid with a ratio (S:L) ranging from 1:2 to 1:3.
Claims
exact text as granted — not AI-modified1 . Method of processing mineral raw materials containing precious metals and chlorides of earth metals; the method consists of enrichment and roasting, with the following distinctive features: the cinder processing is carried out in two steps; at the first step a secondary enrichment by water washing is carried out with the ratio (S:L) =1:0.7-2.5, then the washed cinder is leached by hydrochloric acid with the ratio (S:L) =1:2-3.
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