发明名称 |
Method for making 2,6-xylenol |
摘要 |
A method for making 2,6-xylenol is described. One embodiment of the method comprises: preparing a magnesium-based solid catalyst composition by dry-blending basic magnesium carbonate with at least one filler; forming the catalyst composition into a suitable catalyst-shape; calcining the shaped catalyst at a temperature in the range of about 350° C. to about 550° C.; and reacting phenol and methanol in the presence of the catalyst, to form 2,6-xylenol. The level of chlorides in the magnesium carbonate is less than about 250 ppm, and the level of calcium in the magnesium carbonate is less than about 2,500 ppm.
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申请公布号 |
US6620908(B2) |
申请公布日期 |
2003.09.16 |
申请号 |
US20020063003 |
申请日期 |
2002.03.11 |
申请人 |
GENERAL ELECTRIC COMAPANY |
发明人 |
WATSON BETH A.;DEVANATHAN NARSI |
分类号 |
B01J21/10;B01J23/72;B01J37/00;C07B61/00;C07C37/11;C07C39/07;C08F2/00;(IPC1-7):C08F6/06;C08G65/10 |
主分类号 |
B01J21/10 |
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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