发明名称 |
Process for the preparation of tetrabromobisphenol-A |
摘要 |
This invention relates to a process for the production of tetrabromobisphenol-A by the bromination of bisphenol-A, which process features: (a) feeding to a reaction mass (i) bisphenol-A and (ii) a stream of gaseous bromine, the gaseous stream having a Reynold's No. >/=40,000; (b) the reaction mass containing from about 50 to about 20,000 ppm unreacted bromine and less than 20 wt % HBr; and (c) the reaction mass having precipitated therefrom tetrabromobisphenol-A, all of (a)(ii), (b) and (c) occurring during the bisphenol-A feed.
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申请公布号 |
US6084136(A) |
申请公布日期 |
2000.07.04 |
申请号 |
US19980096332 |
申请日期 |
1998.06.11 |
申请人 |
ALBMARLE CORPORATION |
发明人 |
HOLUB, RICHARD A.;ALFERI, STEVEN R.;MCKINNIE, BONNIE G.;ELNAGAR, HASSAN Y. |
分类号 |
C07C39/367;C07C37/62;(IPC1-7):C07C37/68 |
主分类号 |
C07C39/367 |
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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