发明名称 |
METHOD FOR PRODUCING ACETIC ACID |
摘要 |
A method produces acetic acid by continuously reacting methanol with carbon monoxide in the presence of a rhodium catalyst, an iodide salt, methyl iodide, methyl acetate, and water; and thereby producing acetic acid at a production rate of 11 mol/L·hr or more while keeping the acetaldehyde content of a reaction mixture to 500 ppm or less, in which the reaction is carried out at a carbon monoxide partial pressure in a gaseous phase of a reactor of 1.05 MPa or more and/or at a methyl acetate content of the reaction mixture of 2 percent by weight or more to thereby keep the production rate of acetaldehyde to 1/1500 or less that of acetic acid. This method can reduce production of by-products without reducing the reaction rate of acetic acid even at a low water content and a low hydrogen partial pressure in a reaction system. |
申请公布号 |
EP1832569(A4) |
申请公布日期 |
2009.11.04 |
申请号 |
EP20050816451 |
申请日期 |
2005.12.19 |
申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD. |
发明人 |
KOJIMA, HIDETAKA;MIURA, HIROYUKI |
分类号 |
C07C51/12;B01J23/46;C07B61/00;C07C51/44;C07C53/08 |
主分类号 |
C07C51/12 |
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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