Production of phosphine

Details Production of phosphine Production of phosphine

1977-09-02

1978-12-05

Peters, G. O.

Chemistry of inorganic compounds

Phosphorus or compound thereof

423305, C01B 2500

Patent

active

041286200

ABSTRACT:
Production of phosphine. The phosphine is produced by reducing, in a first step, anhydrous zinc phosphate to zinc phosphide by treatment with carbon at a temperature higher than 1000.degree. C, and, in a second step, reacting the zinc phosphide formed in the first step with phosphoric acid. The resulting gaseous phosphine is collected, and the resulting zinc phosphate, which is obtained as a difficultly soluble precipitate, is dried, dehydrated and recycled to the first step.

REFERENCES:
patent: 3008805 (1961-11-01), Addamiano
patent: 3375074 (1968-03-01), Palmer

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