Method of making high purity dense silica of large particle...

Details Method of making high purity dense silica of large particle... Method of making high purity dense silica of large particle...

C - Chemistry, Metallurgy

01

B

23/194

C01B 33/18 (2006.01) C01B 33/16 (2006.01) C03C 1/00 (2006.01)

Patent

CA 1318481

88-3-434 CN METHOD OF MAKING HIGH PURITY DENSE SILICA OF LARGE PARTICLE SIZE Abstract A method of making high purity, dense silica of large particle size is described. Tetraethylorthosilicate is mixed with ethanol and is added to a dilute acid solution having a pH of about 2.25. The resulting solution is digested for about 5 hours, then 2N ammonium hydroxide is added to form a gel at a pH of 8.5. The gel is screened through an 18-20 mesh screen, vacuum baked, calcined in an oxygen atmosphere and finally heated to about 1200°C in air to form a large particle size, high purity, dense silica.

593881

Affiliated with

Also associated with

Rating

Method of making high purity dense silica of large particle... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making high purity dense silica of large particle..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making high purity dense silica of large particle... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1313647