Process for the production of sodium polysulfides from the eleme

Details Process for the production of sodium polysulfides from the eleme Process for the production of sodium polysulfides from the eleme

1985-09-04

1987-02-03

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

423565, C01B 1722, C01B 1734

Patent

active

046408320

ABSTRACT:
There is described a process for the production of pure sodium polysulfides directly from the elements sodium and sulfur. For this purpose, the sodium and the sulfur under a protective gas and in a stoichiometrical ratio corresponding to the desired polysulfide are alternatingly dosed into a previously present melt of a polysulfide with vigorous stirring, the dosing being in portions such that upon introduction of the sodium the reaction mixture remains in the condition of a stirrable suspension and upon introduction of the sulfur this is completely reacted to a polysulfide of the desired or higher sulfur content.

REFERENCES:
patent: 2202252 (1940-05-01), Herzog
patent: 2660517 (1953-11-01), Padgitt
patent: 2809096 (1957-10-01), Hulse
Supplement to Mellors Comprehensive Theatise on Inorganic & Theoretical Chemistry, vol. II, Supplement II, The Alkali Metals Part 1, John Wiley & Sons, Inc., NY, NY, 1961, pp. 991-992.

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