Continuous production of pure phosphine

Details Continuous production of pure phosphine Continuous production of pure phosphine

1977-07-13

1979-03-06

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

C01B 2500

Patent

active

041431219

ABSTRACT:
Phosphine is continuously produced by reacting yellow phosphorus with an aqueous alkali metal hydroxide solution in the presence of an alcohol, with the exclusion of oxygen, at 44 to 90.degree. C. To this end, the reaction is effected in two separate reaction stages. In the first reaction stage, the alkali metal hydroxide solution and phosphorus are reacted with agitation in a molar ratio of 0.7:1 to 0.9:1 and the resulting gaseous phosphine is collected. Resulting liquid phase material containing unreacted phosphorus is delivered to the second reaction stage in which the unreacted phosphorus is reacted with further aqueous alkali metal hydroxide solution. The resulting gaseous reaction products are collected separately from the gaseous phosphine collected in the first reaction stage.

REFERENCES:
patent: 2977192 (1961-03-01), Cummins

Affiliated with

Also associated with

Rating

Continuous production of pure phosphine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous production of pure phosphine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous production of pure phosphine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-921486