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U . S . Patent Apr . 25 , 2017 Sheet 1 of 3 US 9 , 630 , 844 B 2 ANODE SLIME ACO
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2017 |
| Abstract | A hydrometallurgical process is provided for the recovery of tellurium as elemental tellurium powder from copper refin ery anode slime containing high amount of lead. The process involves the removal of copper and lead from anode slime followed by the recovery of tellurium as elemental powders. (30) Foreign Application Priority Data An economical and environment friendly process is pro vided for producing tellurium from a high lead bearing Aug. 20, 2013 (IN) ........................... 2459/DELA2013 anode slime as it involves only hydrometallurgical tech (51) Int. Cl niques and thereby avoids emission of any polluting gases cosis i/00 (2006.01) and has an efficiency of 85 to 90%. The developed process C22B 3/04 (2006.015 of recovering tellurium as elemental powders from copper Continued refinery anode slime is beneficial in the production of pure (Continued) tellurium instead of tellurium compounds. It helps raise the (52) U.S. Cl. profit margin of a non-ferrous metal industry dealing with CPC ................ COIB 19/02 (2013.01); C22B 3/04 extraction of copper from ores and treatment of anode slime (2013.01); C22B 7/007 (2013.01); : te for the recovery of other metal values. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/14/ee/87/24f6ea2ace2940/US9630844.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
