Purifying thionyl chloride with AlCl.sub.3 catalyst

Details Purifying thionyl chloride with AlCl.sub.3 catalyst Purifying thionyl chloride with AlCl.sub.3 catalyst

1981-05-28

1983-06-14

Hearn, Brian E.

Chemistry of inorganic compounds

Halogen or compound thereof

Sulfur containing

203 29, 203 51, C01B 1745

Patent

active

043882900

ABSTRACT:
In the purification of thionyl chloride by addition of sulphur and distillation in the presence of a catalyst, the improvement which comprises effecting the distillation in the presence of an aluminum compound as the catalyst. Advantageously the aluminum compound is aluminum chloride, the sulphur is added in about 2.5 to 7% by weight based on thionyl chloride, the aluminum chloride is in admixture with sulphur monochloride in about 0.01 to 5% by weight calculated as aluminum and based on thionyl chloride, and prior to distillation the mixture of crude thionyl chloride, sulphur and aluminum chloride is heated to between about 50.degree. and 60.degree. C. for about 10 to 60 minutes. The resulting thionyl chloride is of extremely high purity.

REFERENCES:
patent: 2529671 (1950-11-01), Bissinger
patent: 2539679 (1951-01-01), Trager
patent: 3155457 (1964-11-01), Kunkel
patent: 3219413 (1965-11-01), Kunkel
patent: 3592593 (1971-07-01), Bohm

Affiliated with

Also associated with

Rating

Purifying thionyl chloride with AlCl.sub.3 catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purifying thionyl chloride with AlCl.sub.3 catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purifying thionyl chloride with AlCl.sub.3 catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-163494