Chemistry of inorganic compounds – Boron or compound thereof – Oxygen containing
Patent
1989-05-17
1990-11-06
Straub, Gary P.
Chemistry of inorganic compounds
Boron or compound thereof
Oxygen containing
23313R, 23313FB, 159 481, C01B 1512
Patent
active
049685007
ABSTRACT:
The spray drying of a solution containing hydrogen peroxide and sodium metaborate to obtain primary particles which are immediately conveyed after leaving the drying zone to a granulating device and are then granulated in the presence of free and/or perborate water of crystallization. The granulated materials are dried, if necessary. The generally amorphous primary particles are converted into granulated materials with at least partially crystalline structure and significantly improved shelf life. The work is performed with advantage in a spray dryer with integrated fluid bed or in a compressing granulating device. The method is suitable for preparing perborate granulated materials with over 10% by wt., especially perborate monohydrate granular materials with 14-16% by wt. active oxygen.
REFERENCES:
patent: 3555696 (1971-01-01), Pistor et al.
patent: 4002434 (1977-01-01), Simmersbach et al.
patent: 4115519 (1978-09-01), Brichard et al.
patent: 4185960 (1980-01-01), Brichard et al.
patent: 4215097 (1980-07-01), Brichard et al.
patent: 4681748 (1987-07-01), Doetsch et al.
Bertsch-Frank Birgit
Lieser Thomas
Mueller Klaus
Cuomo Lori F.
Degussa - Aktiengesellschaft
Straub Gary P.
LandOfFree
Continuous method for preparation of granulated sodium perborate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous method for preparation of granulated sodium perborate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous method for preparation of granulated sodium perborate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1305985