Continuous production of tetraphosphorus polysulfides

Details Continuous production of tetraphosphorus polysulfides Continuous production of tetraphosphorus polysulfides

1991-01-24

1993-03-30

Langel, Wayne

Chemistry of inorganic compounds

Phosphorus or compound thereof

Sulfur containing

422132, 422234, C01B 2514

Patent

active

051982021

ABSTRACT:
The tetraphosphorus polysulfides of the formula P.sub.4 S.sub.x, wherein x is at least 3, especially tetraphosphorus decasulfide, P.sub.4 S.sub.10, are prepared by (a) establishing a continuously circulating closed loop of a liquid reaction mixture which comprises desired final product tetraphosphorus polysulfide, (b) continuously introducing liquid phosphorus and liquid sulfur into such continuously circulating reaction mixture and therein continuously reacting the liquid phosphorus with the liquid sulfur, and (c) continuously separating desired final product tetraphosphorus polysulfide, in gaseous state, from such continuously circulating reaction mixture.

REFERENCES:
patent: 2794705 (1957-06-01), Hudson
patent: 3870475 (1975-03-01), Siclari et al.
patent: 4113440 (1978-09-01), Klaasen
patent: 4473538 (1984-09-01), Krause et al.
patent: 4698208 (1987-10-01), Patchornik et al.

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