发明名称 |
PROCESS FOR PRODUCING IMINO-DIACETONITRILE AND IMINO-DIACETIC ACID |
摘要 |
An improved process is provided for producing iminodiacetonitrile by contacting ammonia, formaldehyde and hydrogen cyanide, or hexamethylenetetramine, formaldehyde and hydrogen cyanide in a reaction medium, the improvement which comprises the further steps of thereafter adjusting the pH of the reaction medium to a pH between about 5.5 and about pH 10 and heating the reaction medium to an elevated temperature for a sufficient time to convert by-products in the reaction medium to iminodiacetonitrile. |
申请公布号 |
HU904990(D0) |
申请公布日期 |
1991.01.28 |
申请号 |
HU19900004990 |
申请日期 |
1990.08.13 |
申请人 |
MONSANTO CO. CORP.,US |
发明人 |
KOENIC,KARL ERIE,US;LANSER,GARY ALLEN,US;MORRISON,PAUL ARTHUR,US;WEISENFELD,ROBERT BELLER,US |
分类号 |
C07C253/00;C07C227/26;C07C229/16;C07C253/32;C07C255/24;C07C255/25;C07C255/61 |
主分类号 |
C07C253/00 |
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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