GB451013A - Process for the treatment of zinc muds or sludges - Google Patents

Process for the treatment of zinc muds or sludges

Info

Publication number
GB451013A
GB451013A GB29832/35A GB2983235A GB451013A GB 451013 A GB451013 A GB 451013A GB 29832/35 A GB29832/35 A GB 29832/35A GB 2983235 A GB2983235 A GB 2983235A GB 451013 A GB451013 A GB 451013A
Authority
GB
United Kingdom
Prior art keywords
zinc
sludges
alkali
hyposulphite
muds
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
GB29832/35A
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
Priority to GB29832/35A priority Critical patent/GB451013A/en
Publication of GB451013A publication Critical patent/GB451013A/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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
    • 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

Zinc muds or sludges containing cadmium sulphide resulting from the reduction of oxygen containing compounds with zinc dust are dissolved in sulphurous acid, the solution of zinc bisulphite formed is separated from impurities, the solution heated to precipitate the monosulphite, and the latter roasted to obtain substantially pure zinc oxide. The sludges may be obtained by reducing formaldehyde solutions of zinc hyposulphite or zinc bisulphite with zinc dust and treating the precipitated product with alkali, or by reducing sulphurous acid with zinc dust and converting the impure hyposulphite solution formed into alkali hyposulphite by means of alkali, or by the reduction of nitrobenzol by zinc dust.
GB29832/35A 1935-10-29 1935-10-29 Process for the treatment of zinc muds or sludges Expired GB451013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29832/35A GB451013A (en) 1935-10-29 1935-10-29 Process for the treatment of zinc muds or sludges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29832/35A GB451013A (en) 1935-10-29 1935-10-29 Process for the treatment of zinc muds or sludges

Publications (1)

Publication Number Publication Date
GB451013A true GB451013A (en) 1936-07-28

Family

ID=10297917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29832/35A Expired GB451013A (en) 1935-10-29 1935-10-29 Process for the treatment of zinc muds or sludges

Country Status (1)

Country Link
GB (1) GB451013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752919C (en) * 1938-12-14 1952-12-01 Englert R Process for the production of pure solutions of oxymethanesulfinic acid alkali salts with the simultaneous production of pure zinc oxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752919C (en) * 1938-12-14 1952-12-01 Englert R Process for the production of pure solutions of oxymethanesulfinic acid alkali salts with the simultaneous production of pure zinc oxide

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