Chemistry of inorganic compounds – Boron or compound thereof – Oxygen containing
Patent
1996-03-06
1997-07-29
Langel, Wayne A.
Chemistry of inorganic compounds
Boron or compound thereof
Oxygen containing
501 49, C01B 3510
Patent
active
056519494
ABSTRACT:
Amorphous boric oxide-containing product having about 80 to 90% B.sub.2 O.sub.3 is produced by heating boric acid to an elevated temperature of about 180.degree. to 220.degree. C. to dehydrate the boric acid and form a molten glass which is cooled to a solid glassy product. The solid glass can be comminuted to produce a particulate product. Preferably the boric acid is heated at about 195.degree. to 205.degree. C. The process is readily adapted to a continuous process in which the boric acid is continuously fed through a heated reactor-mixer such as a Kneadermaster mixer or Discotherm mixer. The molten glassy product is cooled to form a solid glassy product which can be comminuted to a desirable particle size range.
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Fisher Richard P.
Gray Tracy E.
Kwamya John D.
Langel Wayne A.
Thornton James R.
U.S. Borax Inc.
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