发明名称 |
VERFAHREN ZUR HERSTELLUNG VON AMINO- ODER HYDROXYBENZONITRILEN |
摘要 |
The invention relates to a method for producing amino- or hydroxybenzonitriles during which, within the scope of an ammonolysis, the corresponding amino- or hydroxybenzoic acid compounds are reacted with ammonia in the presence of a phosphate-containing supported catalyst at temperatures between 250° C. and 500° C. The production step is carried out in a reaction gas without an organic solvent followed by at least a 2-stage purification step. |
申请公布号 |
AT425959(T) |
申请公布日期 |
2009.04.15 |
申请号 |
AT20050816199T |
申请日期 |
2005.11.29 |
申请人 |
ALZCHEM TROSTBERG GMBH |
发明人 |
MILLER, ROLAND;GOMEZ, MARIO;EINMAYR, KLAUS;HILDEBRAND, JENS;ERBEN, HANS-GEORG;KRIMMER, HANS-PETER |
分类号 |
C07C253/22;C07C253/34;C07C255/53 |
主分类号 |
C07C253/22 |
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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