发明名称 |
METHOD FOR REMOVING BORON FROM POLYALKYL HYDROXYAROMATICS |
摘要 |
A method for removing boron from a boron trifluoride-catalyzed polyalkyl hydroxyaromatic reaction product which comprises: (a) diluting the polyalkyl hydroxyaromatic reaction product with an inert solvent to give a polyalkyl hydroxyaromatic reaction product concentration in the range of about 40 to about 80 weight percent; (b) filtering the diluted polyalkyl hydroxyaromatic reaction product in the presence of a filter aid in combination with (1) magnesium silicate, (2) water or (3) a mixture of magnesium silicate and water; wherein the water is present during filtration at a concentration of about 100 to 1,500 ppm, based on the diluted polyalkyl hydroxyaromatic reaction product; with the proviso that when water is used in the absence of magnesium silicate, the filter aid is diatomaceous earth; and (c) recovering a filtrate containing the diluted polyalkyl hydroxyaromatic reaction product having less than about 10 ppm of boron present.
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申请公布号 |
CA2325962(C) |
申请公布日期 |
2009.10.20 |
申请号 |
CA20002325962 |
申请日期 |
2000.11.14 |
申请人 |
CHEVRON ORONITE S.A.;CHEVRON ORONITE COMPANY LLC |
发明人 |
GRAY, JAMES;TRICONNET, THIERRY |
分类号 |
C07C37/82;C08F6/08;C07C37/70;C07C213/02;C07C215/50;C08F8/02;C08F110/10 |
主分类号 |
C07C37/82 |
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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