发明名称 |
PROCESS FOR PREPARING MONOMERS AND POLYMERS THEREOF |
摘要 |
A PROCESS OF PREPARING AN ETHYLENICALLY UNSATURATED AMIDE OR AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID OR SALT THEREOF FROM THE CORRESPONDING ETHYLENICALLY UNSATURATED NITRILE WHEREIN THE NITRILE IS SUBJECTED TO A HYDRATION OR HYDROLYSIS REACTION IN AN AQUEOUS MEDIUM IN THE PRESENCE OF A BIOCATALYST, WHEREIN THE NITRILE CONTAINS ABOVE 2 PPM ACROLEIN AND THE AMIDE OR CARBOXYLIC ACID OR SALT THEREOF CONTAINS LESS THAN 2 PPM ACROLEIN. THE PROCESS CAN BE USED TO PREPARE HIGH PURITY ACRYLAMIDE OR ACRYLIC ACID (SALT) FROM LOW QUALITY ACRYLONITRILE CONTAINING HIGH LEVELS OF ACROLEIN. SUITABLE BIOCATALYSTS INCLUDE MICROORGANISMS OF THE RHODOCOCCUS GENUS.
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申请公布号 |
MY144285(A) |
申请公布日期 |
2011.08.29 |
申请号 |
MYPI20053097 |
申请日期 |
2005.07.06 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
DINESH MISTRY;JATINDER SINGH KULLAR |
分类号 |
C12P13/02;C08F220/06;C08F220/56;C12P7/40;C12P7/62 |
主分类号 |
C12P13/02 |
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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