Process for the manufacture of potassium stabilized silica sols

Details Process for the manufacture of potassium stabilized silica sols Process for the manufacture of potassium stabilized silica sols

1988-10-07

1990-04-10

Lee, Mary C.

Compositions

Preservative agents

Anti-corrosion

252310, 252306, 252302, C09K 1302

Patent

active

049158708

ABSTRACT:
A method for producing a silica sols containing less than 150 ppm sodium haivng an average particle size of 2-110 nm, and a particle size distribution with a coefficient dispersion of 0.16-0.4. The silica sols are produced using a KOH heal to which aliquots of modified silicic acid containing acidic anions are added. The aliquots are added to maintain a substantially constant concentration of colloidal silica in the product. Subsequent to production, the sols may be concentrated by ultrafiltration.
Preparation of low sodium silica sols utilizing a constant silica technique by heating the initial heel to a temperature greater than 80.degree. C. and adding additional silica maintaining an approximately constant total silica. The stabilization is effected with a KOH.

REFERENCES:
patent: 2577484 (1951-12-01), Rule
patent: 3239521 (1966-03-01), Weldes
patent: 3326910 (1967-06-01), Weldes
patent: 3582494 (1971-06-01), Vossos et al.
patent: 3597248 (1971-08-01), Yates
patent: 3630954 (1971-12-01), Yates
patent: 4054536 (1977-10-01), Schaefer et al.

Affiliated with

Also associated with

Rating

Process for the manufacture of potassium stabilized silica sols does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the manufacture of potassium stabilized silica sols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of potassium stabilized silica sols will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2298039