Process for producing silica of high purity

Details Process for producing silica of high purity Process for producing silica of high purity

1988-08-08

1989-08-15

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423335, 423338, C01B 3312

Patent

active

048572900

ABSTRACT:
This invention provides a process for producing silica from silica sol which comprises preparing an acidic silica sol applied with a hydrogen peroxide treatment from an aqueous solution of alkali silicate, purifying the acidic silica sol by using a cationic exchange resin after pH adjustment and preparing silica from the silica sol obtained by neutralizing the thus purified acidic silica sol, that is, a production process for highly pure silica capable of removing, Ti as much as possible in the same manner as impurities such as Fe and Al.

REFERENCES:
patent: 3857924 (1974-12-01), Halasz et al.
patent: 4190632 (1980-02-01), Achenbach et al.
patent: 4327065 (1982-04-01), von Dardel et al.
patent: 4355015 (1982-10-01), Heckel et al.

Affiliated with

Also associated with

Rating

Process for producing silica of high purity 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 producing silica of high purity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing silica of high purity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-120178