Preparation of boron trichloride

Details Preparation of boron trichloride Preparation of boron trichloride

C - Chemistry, Metallurgy

01

B

23/8

C01B 35/06 (2006.01)

Patent

CA 1112019

Abstract of the Disclosure Boron trichloride is prepared in substantially stoichiometric quantities by free-radical chlorination of borate ester, e.g., trimethyl borate, at temperatures of between about 20C. and 100C., more preferably between about 40C. and about 90C. The mole ratio of chlorine to borate ester is from about 5.5:1 to about 7.5:1. Reactor pressures are moderate, e.g., generally less than 3 atmospheres absolute. Atmospheric pressure can be used. An inert liquid organic solvent, e.g., carbon tetrachloride, can be used as the reaction medium. Gaseous reaction products are removed from the reactor during the chlorination reaction. In addition to boron trichloride, carbon monoxide (rather than phosgene) and hydrogen chloride are the principal products of the chlorination reaction. Phosgene is produced in substantially lower amounts than when chlorination is conducted at autogeneous pressures and the chlorine:trimethyl borate mole ratio is 9:1 or more. The boron trichloride product is separated from the carbon monoxide, hydrogen chloride and phosgene products, and recovered.

345893

Affiliated with

Also associated with

Rating

Preparation of boron trichloride does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-344456