Process for leaching metal sulfides with reagents having thiocarbony functional groups
This Laos Patent “Process for leaching metal sulfides with reagents having thiocarbony functional groups” is a public DIP intellectual-property record, filed by THE UNIVERSITY OF BRITISH COLUMBIA on 2016-04-15; current status: Registered. Identifiers include application No. P/557; DIP id LAP557; protection kind Patent - PCT National Phase. Key dates: publication 2025-01-10; grant 2025-01-07; expiry reference 2036-04-15. Classification: C01G 3/00、C01G 49/00、C22B 15/00、C22B 17/00、C22B 23/00、C22B 3/16、C22B 3/26、C25C 1/12. Inventor(s)/designer(s): Ahmad GHAHREMANINEZHAD, David DIXON, Edouard ASSELIN, Oscar OLVERA OLMEDO, Zihe REN. Abstract hint: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulf…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/557
Mark
Key facts
- Type
- Patent
- App. no.
P/557- Status
- Registered
- Applicant
- THE UNIVERSITY OF BRITISH COLUMBIA
- Agent
- SCL law Offices Limited
- Filing date
- 2016-04-15
- Reg. no.
P/557- Publication
- 2025-01-10
- Registration / grant
- 2025-01-07
- Expiry
- 2036-04-15
- Protection kind
- Patent - PCT National Phase
- Gazette
- 286 · 2025-01-10
- Priority
- CA · PCT/2016/050444 · 2016-04-15；US · 62/149,015 · 2015-04-17
- Applicant address
- THE UNIVERSITY OF BRITISH COLUMBIA · University - Industry Liaison Office #103 - 6190 Agronomy Road Vancouver, British Columbia V6T 1Z3 · CA
- Agent address
- SCL law Offices Limited · Unit 1-3, 6th Floor, ANZ Bank (Lao) Building, 33 Lane Xang Avenue, Vientiane Capital, Lao PDR. · LA
- Nice / IPC classes
- C01G 3/00 · C01G 49/00 · C22B 15/00 · C22B 17/00 · C22B 23/00 · C22B 3/16 · C22B 3/26 · C25C 1/12
- Goods / services
- —
Process
Steps follow the current public status-
Filed
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Formal examination
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Substantive examination
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Published
-
Granted
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Abstract
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
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