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2139602
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Information
Patent Grant
2139602
References
Source
Patent Number
2,139,602
Date Filed
Not available
Date Issued
Tuesday, December 6, 1938
85 years ago
CPC
C22B23/0415 - with acids or salt solutions except ammonium salts solutions
C22B7/009 - General processes for recovering metals or metallic compounds from spent catalysts
C22B15/0058 - Spent catalysts
C22B15/0067 - with acids or salts thereof
C22B23/026 - from spent catalysts
C22B34/1277 - using other metals
C22B34/325 - from spent catalysts
Y02P10/214 - by pyro metallurgy
Y02P10/22 - of Cu
Y02P10/224 - of Co or Ni
Y02P10/23 - of refractory metals
Y02P10/236 - of Cu
US Classifications
502 - Catalyst, solid sorbent, or support therefor: product or process of making
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