GB1404586A - Process for recovering sulphuric acid - Google Patents

Process for recovering sulphuric acid

Info

Publication number
GB1404586A
GB1404586A GB4904871A GB4904871A GB1404586A GB 1404586 A GB1404586 A GB 1404586A GB 4904871 A GB4904871 A GB 4904871A GB 4904871 A GB4904871 A GB 4904871A GB 1404586 A GB1404586 A GB 1404586A
Authority
GB
United Kingdom
Prior art keywords
zinc
sulphuric acid
metal
oct
precipitate
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
GB4904871A
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.)
Electricity Council
Original Assignee
Electricity Council
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 Electricity Council filed Critical Electricity Council
Priority to GB4904871A priority Critical patent/GB1404586A/en
Publication of GB1404586A publication Critical patent/GB1404586A/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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • 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

1404586 Zinc sulphate removal ELECTRICITY COUNCIL 23 Oct 1972 [21 Oct 1971] 49048/71 Heading C1A [Also in Division C7] A sulphuric acid pickel or leach liquor contaminated with the ions of a metal or metals more noble than zinc is treated to recover acid values by (i) neutralization with zinc metal or zinc oxide (ii) treatment with zinc metal to precipitate in metallic form, the contaminating ions, (iii) filtration to remove the precipitate and (iv) electrolysis of the resulting solution whereby metallic zinc is recovered and sulphuric acid is regenerated. The zinc recovered in the final step may be recirculated for use in steps (i) and/or (ii). If the liquor is contaminated with quantities of iron, an additional neutralization step may be effected between steps (i) and (ii) whereby the iron is precipitated as the oxide or hydroxide by treatment with oxygen, preferably at an elevated temperature.
GB4904871A 1971-10-21 1971-10-21 Process for recovering sulphuric acid Expired GB1404586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4904871A GB1404586A (en) 1971-10-21 1971-10-21 Process for recovering sulphuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4904871A GB1404586A (en) 1971-10-21 1971-10-21 Process for recovering sulphuric acid

Publications (1)

Publication Number Publication Date
GB1404586A true GB1404586A (en) 1975-09-03

Family

ID=10450920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4904871A Expired GB1404586A (en) 1971-10-21 1971-10-21 Process for recovering sulphuric acid

Country Status (1)

Country Link
GB (1) GB1404586A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889697A (en) * 1987-12-10 1989-12-26 Nkk Corporation Method of refining ferrous ion-containing acid solution
EP2316553A1 (en) * 2009-09-25 2011-05-04 Serge Ferlay Method for desulphating acid wastes from the titanium industry
WO2011120093A1 (en) * 2010-03-30 2011-10-06 Intec Ltd Recovering metals from pickle liquor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889697A (en) * 1987-12-10 1989-12-26 Nkk Corporation Method of refining ferrous ion-containing acid solution
EP2316553A1 (en) * 2009-09-25 2011-05-04 Serge Ferlay Method for desulphating acid wastes from the titanium industry
WO2011120093A1 (en) * 2010-03-30 2011-10-06 Intec Ltd Recovering metals from pickle liquor

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed