Preparation of basic aluminium chlorides

Details Preparation of basic aluminium chlorides Preparation of basic aluminium chlorides

C - Chemistry, Metallurgy

01

F

23/167

C01F 7/56 (2006.01)

Patent

CA 2014589

J 3043 ABSTRACT The disclosure concerns a process for the manufacture of basic aluminium chlorides in powder form for antiperspirant use which have an aluminium:chloride molar ratio of 1.7:1 to 2.2:1 and has a Band III fraction of at least 20% as determined by a chromatographic procedure. The disclosure centres on the finding of advantageous reaction conditions for the known reaction between aluminium powder and an aqueous aluminium chloride solution. The temperature of reaction is 50° to 105°C and the final aluminium concentration of the solution is 7.5 to 13%. It has been discovered that if this reaction is carried out sufficiently rapidly a solution of a basic aluminium chloride is produced having a Band III fraction of at least 20%. The disclosure shows the influence of the grade of aluminium and manner of conducting the reaction on reaction time. The solution obtained is dried, preferably spray dried or freeze dried, to give the powder.

Affiliated with

Also associated with

Rating

Preparation of basic aluminium chlorides 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 basic aluminium chlorides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of basic aluminium chlorides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1458639