Synthetic mixed-layer silicate and method for the preparation th

Details Synthetic mixed-layer silicate and method for the preparation th Synthetic mixed-layer silicate and method for the preparation th

1995-08-18

1997-01-21

Bell, Mark L.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

4233301, 423331, 423333, C01B 3340

Patent

active

055957161

ABSTRACT:
A novel synthetic mixed-layer silicate consisting of the layers of serpentine and layers of saponite each having a specified chemical composition is proposed, which has excellent dispersibility in water to form a colloidal dispersion capable of being converted into a gel by standing to be useful as a gelating agent exhibiting thixotropy along with unique porosity characteristics which enable the use thereof as an adsorbent. The mixed-layer silicate is prepared by the process comprising the steps of: (a) preparing an acidic aqueous solution containing silicic acid, magnesium salt and aluminum salt; (b) alkalifying the solution by the addition of an alkaline compound to precipitate a hydrous composite oxide containing silicon, magnesium and aluminum; (c) collecting the precipitates of the hydrous composite oxide; (d) admixing the precipitates of the hydrous composite oxide with an aqueous solution of an alkali metal hydroxide to give an aqueous slurry; and (e) subjecting the aqueous slurry of the hydrous composite oxide to a hydrothermal treatment by heating at a temperature up to 500.degree. C.

REFERENCES:
patent: 3671190 (1972-06-01), Neumann
patent: 3844979 (1974-10-01), Hickson
patent: 3855147 (1974-12-01), Granquist
patent: 4040974 (1977-08-01), Wright et al.
patent: 4749676 (1988-06-01), Blumenthal et al.
patent: 5089458 (1992-02-01), Breukelaar et al.
Database WPI, Week 8348, Derwent Publications Ltd., AN 83-830471 (abstract of Jp-A-58-181718) (1983) Oct.

Affiliated with

Also associated with

Rating

Synthetic mixed-layer silicate and method for the preparation th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthetic mixed-layer silicate and method for the preparation th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic mixed-layer silicate and method for the preparation th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2322321