发明名称 |
Production of boric oxide |
摘要 |
Amorphous boric oxide-containing product having about 80 to 90% B2O3 is produced by heating boric acid to an elevated temperature of about 180 DEG to 220 DEG 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 DEG to 205 DEG 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. |
申请公布号 |
EA199700348(A1) |
申请公布日期 |
1998.04.30 |
申请号 |
EA19970000348 |
申请日期 |
1996.04.29 |
申请人 |
UNITED STATES BORAX INC |
发明人 |
KWAMYA JOHN D;GRAY TRACY E;FISHER RICHARD P |
分类号 |
C03B5/02;C01B35/10;C03C3/14;(IPC1-7):C01B35/10 |
主分类号 |
C03B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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