GB656144A - Improvements in metallurgy - Google Patents

Improvements in metallurgy

Info

Publication number
GB656144A
GB656144A GB31723/47A GB3172347A GB656144A GB 656144 A GB656144 A GB 656144A GB 31723/47 A GB31723/47 A GB 31723/47A GB 3172347 A GB3172347 A GB 3172347A GB 656144 A GB656144 A GB 656144A
Authority
GB
United Kingdom
Prior art keywords
sulphide
ferrous
sulphate
iron
ferrous sulphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB31723/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB656144A publication Critical patent/GB656144A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

In a process for recovering iron from ferrous sulphide-bearing material involving treatment of the ferrous sulphide material with aqueous sulphuric acid to produce ferrous sulphate solution, the ferrous sulphate solution is either heated to above, say, 90 DEG C. or cooled to below say, 25 DEG C. to form solid ferrous sulphate which is separated from the mother liquor, and the mother liquor, with added sulphuric acid and, if necessary, water, is used for the treatment of further sulphide-bearing material. Ore containing iron sulphide is smelted and the resultant matte is treated countercurrent with acid at, say, 50-70 DEG C. to produce (1) hydrogen sulphide, (2) a solid residue of sulphides of cobalt, copper, gold, nickel, platinum, silver, zinc, (3) a neutral saturated solution of iron sulphate. The solid ferrous sulphate is separated by decantation or filtration. The zinc may also be recovered as sulphate by crystallization from an intermediate stage. Specifications 566,375, 656,141 and 656,143 are referred to.
GB31723/47A 1946-12-09 1947-12-01 Improvements in metallurgy Expired GB656144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US656144XA 1946-12-09 1946-12-09

Publications (1)

Publication Number Publication Date
GB656144A true GB656144A (en) 1951-08-15

Family

ID=22063928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31723/47A Expired GB656144A (en) 1946-12-09 1947-12-01 Improvements in metallurgy

Country Status (1)

Country Link
GB (1) GB656144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619068A (en) * 2017-09-30 2018-01-23 中南大学 A kind of iron sulfonium prepares the method that hydrogen sulfide is used for waste acid processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619068A (en) * 2017-09-30 2018-01-23 中南大学 A kind of iron sulfonium prepares the method that hydrogen sulfide is used for waste acid processing

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