GB385895A - Improved manufacture of anhydrous alkali polysulphides - Google Patents

Improved manufacture of anhydrous alkali polysulphides

Info

Publication number
GB385895A
GB385895A GB21076/32A GB2107632A GB385895A GB 385895 A GB385895 A GB 385895A GB 21076/32 A GB21076/32 A GB 21076/32A GB 2107632 A GB2107632 A GB 2107632A GB 385895 A GB385895 A GB 385895A
Authority
GB
United Kingdom
Prior art keywords
reaction
sulphur
alkali
polysulphides
anhydrous alkali
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
GB21076/32A
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
Publication of GB385895A publication Critical patent/GB385895A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B17/22—Alkali metal sulfides or polysulfides
    • C01B17/34—Polysulfides of sodium or potassium

Abstract

Anhydrous alkali polysulphides are obtained by reacting molten sulphur with an anhydrous alkali sulphide, for example, sodium sulphide, produced by gaseous reduction of alkali sulphate. The reaction may be effected in a directly heated closed iron vessel provided with a stirrer, advantageously in an indifferent atmosphere such as nitrogen. The mass is maintained in a fused condition during reaction, the heat of reaction being in general sufficient for this purpose. The homogeneous melt may be allowed to settle, or filtered through a hot filter, and then cooled with exclusion of air. A statement of prior art relates to the production of alkali polysulphides by the reaction of sulphur on a monosulphide or hydrosulphide in alcoholic or ethereal solution, or by heating hydrated monosulphide with an excess of sulphur in a current of hydrogen.
GB21076/32A 1931-09-05 1932-07-26 Improved manufacture of anhydrous alkali polysulphides Expired GB385895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE385895X 1931-09-05

Publications (1)

Publication Number Publication Date
GB385895A true GB385895A (en) 1933-01-05

Family

ID=6370891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21076/32A Expired GB385895A (en) 1931-09-05 1932-07-26 Improved manufacture of anhydrous alkali polysulphides

Country Status (1)

Country Link
GB (1) GB385895A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796325A (en) * 1951-10-24 1957-06-18 Thiokol Chemical Corp Process of making alkaline sulfides and sulfites
US4640832A (en) * 1984-10-06 1987-02-03 Degussa Aktiengesellschaft Process for the production of sodium polysulfides from the elements sodium and sulfur
GB2365858B (en) * 1999-06-17 2002-12-31 Qinetiq Ltd Process for producing a lithium transition metal sulphide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796325A (en) * 1951-10-24 1957-06-18 Thiokol Chemical Corp Process of making alkaline sulfides and sulfites
US4640832A (en) * 1984-10-06 1987-02-03 Degussa Aktiengesellschaft Process for the production of sodium polysulfides from the elements sodium and sulfur
GB2365858B (en) * 1999-06-17 2002-12-31 Qinetiq Ltd Process for producing a lithium transition metal sulphide
EP1187790B1 (en) * 1999-06-17 2003-10-29 Qinetiq Limited Process for producing a lithium transition metal sulphide
US6740301B1 (en) 1999-06-17 2004-05-25 Qinetiq Limited Process for producing a lithium transition metal sulphide

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