Process for preparing amorphous silica from kimberlite tailing

Details Process for preparing amorphous silica from kimberlite tailing Process for preparing amorphous silica from kimberlite tailing

2006-05-02

2006-05-02

Green, Anthony J. (Department: 1755)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C106S481000, C106S482000, C106S483000, C106S484000, C106S492000, C423S335000

Reexamination Certificate

active

07037476

ABSTRACT:
A new process is described for the preparation of free flowing hydrated amorphous silica from kimberlite tailing—a waste in diamond mining. The process comprises treating of kimberlite with acid, further reacting it with alkali solution to obtain soluble metal silicate solution, which is subsequently neutralized with mineral acid to polymerize silica as insoluble precipitates. The products is useful in rubber, paints as abrasive etc.

REFERENCES:
patent: 4243428 (1981-01-01), Donnet et al.
patent: 4495167 (1985-01-01), Nauroth et al.
patent: 5034207 (1991-07-01), Kerner et al.
patent: 5094829 (1992-03-01), Krivak et al.
patent: 5123964 (1992-06-01), Kerner et al.
patent: 5342598 (1994-08-01), Persello
patent: 5851502 (1998-12-01), Turk et al.
patent: 6180076 (2001-01-01), Uhrlandt et al.
patent: 6214912 (2001-04-01), Chevallier et al.
patent: 6468493 (2002-10-01), Chevallier et al.
patent: 6702888 (2004-03-01), Bomal et al.
patent: 6800267 (2004-10-01), Schubert et al.
patent: 2003/0118500 (2003-06-01), Chevallier et al.
patent: 176707 (1991-02-01), None
Abstract of Indian Patent No. 176,707, The Gazette of India, Aug. 24, 1996, pp. 625-626.
Anonymous: “Annual Report Mar. 2002: Chapter-VI Research and Development”, Internet Article, ‘Online’ 2003, pp. 1-20, XP-002327131.

Affiliated with

Also associated with

Rating

Process for preparing amorphous silica from kimberlite tailing 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 preparing amorphous silica from kimberlite tailing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing amorphous silica from kimberlite tailing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3607605