GB348776A - A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate - Google Patents

A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate

Info

Publication number
GB348776A
GB348776A GB854730A GB854730A GB348776A GB 348776 A GB348776 A GB 348776A GB 854730 A GB854730 A GB 854730A GB 854730 A GB854730 A GB 854730A GB 348776 A GB348776 A GB 348776A
Authority
GB
United Kingdom
Prior art keywords
zinc
carbonate
pure zinc
sulphur dioxide
excess
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
GB854730A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB854730A priority Critical patent/GB348776A/en
Publication of GB348776A publication Critical patent/GB348776A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/14—Preparation of sulfites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C01G9/02—Oxides; Hydroxides

Abstract

To the aqueous reaction mixtures of equivalent quantities of zinc dust and sulphur dioxide is added at least 1 per cent (by weight of the zinc dust employed) of zinc oxide, zinc dust, or zinc carbonate, the resulting solution of zinc hydrosulphite being filtered, and then treated with an excess of caustic soda or sodium carbonate, in which latter case the zinc carbonate formed is heated to form zinc oxide. The excess zinc or zinc compound may be added before, during or after the main reaction, or a little sodium hydroxide or carbonate may be added before filtration of the solution obtained from equivalent quantities of zinc dust and sulphur dioxide. The quantity of sulphur dioxide employed in practice is usually slightly in excess of the quantity theoretically required, since the zinc dust usually contains impurities which consume some sulphur dioxide. Examples of the process are given.
GB854730A 1930-03-17 1930-03-17 A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate Expired GB348776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB854730A GB348776A (en) 1930-03-17 1930-03-17 A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB854730A GB348776A (en) 1930-03-17 1930-03-17 A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate

Publications (1)

Publication Number Publication Date
GB348776A true GB348776A (en) 1931-05-21

Family

ID=9854549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB854730A Expired GB348776A (en) 1930-03-17 1930-03-17 A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate

Country Status (1)

Country Link
GB (1) GB348776A (en)

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