Patent CA1044022A successfully refreshed from Google Patents.
CA1044022A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Process for the ferric chloride leaching of sulfide ores
Assignee: Cyprus Metallurgical Processes Corp
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Filing: 1975-02-26
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Granted: 1978-12-12
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Expires: 1995-02-26
Abstract
Abstract S P E C I F I C A T I O N IMPROVED PROCESS FOR THE FERRIC CHLORIDE LEACHING Eugene S. Allen OF SULFIDE ORES Robert C. Horn ABSTRACT OF THE INVENTION An improvement in the method of leaching metals from their sulfide ores with ferric chloride which comprises leaching the metal sulfide concentrate at a temperature from slightly above the boiling temperature of the leach liquor at ambient conditions to slightly below the melting point of sulfur to increase the dissolving effectiveness and reaction rate, and the filtering rate of the leach solution.
Inventors
- 👤 Eugene S. Allen
- 👤 Robert C. Horn
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
An improved process for recovering metals from their sulfide ores by ferric chloride leaching in which metal recovery and the filtration rate of the leach slurry are increased, the process comprising leaching concentrates of the ores with ferric chloride at a temperature between slightly above the boiling point of the leach slurry and a temperature slightly below the melting point of sulfur.
Claim 2
Dependent Claim
62 words
An improved process for recovering metals from their sulfide ores by ferric chloride leaching in which metal recovery and the filtration rate of the leach slurry are increased, the process comprising leaching concentrates of the ores with ferric chloride at a temperature between slightly above the boiling point of the leach slurry and a temperature slightly below the melting point of sulfur.
Claim 3
Dependent Claim
18 words
The process of claim 1 in which leaching is performed at a temperature between about 104°C and 117°C.
Claim 4
Dependent Claim
18 words
The process of claim 2 in which leaching is performed at a temperature between about 106°C and 116°C.
References Cited (Backward Citations)
No citation records indexed.
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