发明名称 |
PROCESS FOR THE HYDRODECHLORINATION OF A LIQUID FEED COMPRISING DICHLOROACETIC ACID |
摘要 |
The process of the present invention pertains to a process wherein a liquid feed comprising monochioroacetic acid, dichloroacetic acid, and optionally acetic acid and/or trichioroacetic acid is subjected to a catalytic hydrodechlorination step by contacting it with a source of hydrogen in the presence of a solid heterogeneous hydrogenation catalyst situated in a fixed catalyst bed, wherein the liquid feed is fed to the top of avertical tubular reactor at a superficial mass velocity of between and 10 kg/s per square meter of the horizontal cross-section of the vertical tubular reactor and a rate of between 250 and 3,000 kg/hr per m of said catalyst bed, wherein the source of hydrogen is fed to the top or bottom of the vertical tubular reactor at a rate of between 0.025 to 0.25 Nm/s per square meter of the horizontal cross-section of the vertical tubular reactor, so as to obtain an average axial pressure gradient of at least 2 kPa per meter of said catalyst bed, and wherein the temperature in the top of the vertical tubular reactor is between 100 and 200° C., and wherein the pressure in the top of the vertical tubular reactor is between 0.2 and 1.0 MPa. |
申请公布号 |
ZA201402210(B) |
申请公布日期 |
2015.04.29 |
申请号 |
ZA20140002210 |
申请日期 |
2014.03.25 |
申请人 |
AKZO NOBEL CHEMICALS INTERNATIONAL B.V. |
发明人 |
NIEUWHOF ,MELLE RINZE;VOS,HENDRIK JAN;VAN DEN BERG ,JACOBUS;KOOIJMAN ,CORNELIS;TOLLIN,LARS MAGNUS;VAN HAL,HENRICUS JOHANNES MARINUS PETRUS |
分类号 |
C07C |
主分类号 |
C07C |
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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