Process of preparing metal phosphorus trisulfides

Details Process of preparing metal phosphorus trisulfides Process of preparing metal phosphorus trisulfides

1979-11-14

1981-05-12

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Sulfur containing

C01B 2514

Patent

active

042671574

ABSTRACT:
A process for producing relatively pure metal phosphorus trisulfides of the formula MPS.sub.3 wherein M is a metal selected from the group consisting of Mg, Ca, Sr, V, Mn, Fe, Co, Ni, Pd, Zn, Cd, Hg, Sn, Pb, Sm, Eu, Yb and mixtures thereof, said process comprising contacting in a reaction zone, phosphides of said metals of the formula M.sub.x P.sub.y, wherein the ratio of y/x ranges between 1/8 to 5/1, with one or more compounds of the formula PS.sub.z wherein z ranges from 1-3 and is preferably 2, said PS.sub.z being present in the reaction zone in an amount sufficient to exceed the amount of P and S stoichiometrically required to form the desired MPS.sub.3, at a temperature ranging from about 300.degree.-600.degree. C. and confined so as to maintain the PS.sub.z present in the reaction zone as a gas in equilibrium with its liquid for a time sufficient to produce said relatively pure metal phosphorus trisulfide.

REFERENCES:
patent: 4049879 (1977-09-01), Thompson et al.
Taylor, Steger and Wold, "Preparation and Properties of Some Transition Metal Phosphorus Trisulfide Compounds", J. Solid State Chem., 7, pp. 461-467 (1973).
Steger, Wold and Kostiner, "Preparation and Properties of Iron Phosphorus Triselenide, FePSe.sub.3 ", Inorganic Chemistry, vol. 13, No. 11, pp. 2719-2721 (1974).

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