发明名称 |
Process for producing aromatic aldehydes |
摘要 |
In a process for producing aromatic aldehydes by reacting chlorinated methylbenzenes with nitric acid, the improvement wherein a lead compound is added to the residue left after separation and recovery of the resulting aromatic aldehydes from the reaction mixture thereby to remove a chlorine ion present in the residue as a precipitate of lead chloride, and the residue left after removal of the lead chloride is recycled to the reaction of the chlorinated methylbenzenes with nitric acid.
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申请公布号 |
US4399311(A) |
申请公布日期 |
1983.08.16 |
申请号 |
US19810282733 |
申请日期 |
1981.07.13 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
YOSHINAKA, SHIGEO;TOKI, TSUKASA;WAKATSUKI, MISUZU;UCHIYAMA, SEIJI |
分类号 |
C07C47/52;C07C45/00;C07C45/27;C07C45/28;C07C45/43;C07C47/54;C07C47/544;C07C67/00;(IPC1-7):C07C45/42 |
主分类号 |
C07C47/52 |
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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