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1. 发明专利

JPS61122253A Purification of aqueous solution of acrylamide 失效
标题翻译：丙烯酰胺水溶液的纯化
公开(公告)号：JPS61122253A
公开(公告)日：1986-06-10
申请号：JP24084684
申请日：1984-11-16
申请人： Nitto Chem Ind Co Ltd
发明人： YAMAGUCHI YASUMASA , NISHIDA MASASHI
IPC分类号： B01D15/00 , C07C231/24 , C07C233/09
CPC分类号： C07C233/09
摘要： PURPOSE: To prevent the polymerization of acrylamide near the activated carbon, and to obtain an aqueous solution of purified acrylamide free from contamina tion with polymers, stably, by contacting water having high dissolved oxygen concentration to an activated carbon, and contacting the activated carbon with an aqueous solution of acrylamide.
CONSTITUTION: An activated carbon is made to contact with wate containing dissolved oxygen until the dissolved oxygen concentration of the water reaches ≥0.5ppm, preferably ≥1ppm, and the activated carbon is made to contact with an aqueous solution of acrylamide. The process is suitable for the purification of an aqueous solution of acrylamide free from a polymerization inhibitor such as copper ion, etc., and especially for the purifications of an aqueous solution of acrylamide produced by a microbial process. The contact of the activated carbon nwith water containing dissolved oxygen is carried out usually by passing the water containing dissolved oxygen through the packed layer of a column packed with activated carbon.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了防止丙烯酰胺在活性炭附近的聚合，并且通过使具有高溶解氧浓度的水与活性炭接触并使活性炭与丙烯酰胺的水溶液。构成：使活性炭与含有溶解氧的水分接触，直到水的溶解氧浓度达到> 0.5ppm，优选≥1ppm，并使活性炭与丙烯酰胺水溶液接触。该方法适用于纯化不含聚合抑制剂如铜离子等的丙烯酰胺水溶液，特别是纯化通过微生物法生产的丙烯酰胺水溶液。活性炭与含有溶解氧的水的接触通常通过使含有溶解氧的水通过填充有活性炭的填充层进行。

2. 发明专利

JPS61122227A Purification of reaction liquid produced by using microbial cell, immobilized microbial cell or immobilized enzyme 失效
标题翻译：通过使用微生物细胞，固定化微生物细胞或固定化酶产生的反应液体的纯化
公开(公告)号：JPS61122227A
公开(公告)日：1986-06-10
申请号：JP24084584
申请日：1984-11-16
申请人： Nitto Chem Ind Co Ltd
发明人： ASHINA YOSHIRO , YAMAGUCHI YASUMASA , NISHIDA MASASHI , DOI TOSHIAKI
IPC分类号： C07B63/00 , B01D71/24 , C07B31/00 , C07C67/00 , C07C231/00 , C07C231/24 , C07C233/09 , C12P1/00 , C12P13/02
CPC分类号： C12P13/02 , B01D61/14 , B01D63/02 , B01D65/02 , B01D71/26 , B01D2321/04 , B01D2321/164 , C12P1/00
摘要： PURPOSE: To purify a reaction liquid prepared by the use of the titled microbial cell or enzyme as a catalyst in an aqueous medium, stably for a long period, by combining a filtration process using a porous hollow fiber membrane made of polyethylene and having a specific bubble point with a process comprising of washing under specific condition.
CONSTITUTION: Fine solid particles are removed from a reaction liquid obtained by using microbial cells, immobilizd microbial cells or immobilized enzymes as a catalyst in an aqueous medium, especially from an aqueous solution of acrylamide. The removal is carried out by repeating (A) the filtration of the solution with a porous hollow fiber membrane made of a polyethylene and having a bubble point of 1W20kg/cm
2 and (B) the washing of the clogged hollow fiber membrane, especially by a combination of said hollow fiber membrane is made to ≥3kg/cm
2 before washing to recover the filtering performance of the hollow fiber membrane completely and to purify the above reaction liquid economically. The consumption of chemicals such as alkali, etc., can be decreased, and the amount of waste water to be treated is also decreased by this process.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过组合使用由聚乙烯制成的多孔中空纤维膜并具有特定的多孔中空纤维膜的过滤方法来纯化通过使用标准的微生物细胞或酶作为催化剂在水性介质中稳定地制备的反应液体起泡点包括在特定条件下洗涤的方法。构成：通过使用微生物细胞，固定的微生物细胞或固定化酶作为催化剂在水性介质中，特别是丙烯酰胺水溶液中获得的反应液中除去细小的固体颗粒。通过重复（A）使用由聚乙烯制成的泡沫点为1-20kg / cm 2的多孔中空纤维膜过滤溶液进行除去，（B）中空纤维堵塞的清洗特别是通过所述中空纤维膜的组合使膜在洗涤前达到≥3kg/ cm 2，以完全回收中空纤维膜的过滤性能，并经济地净化上述反应液。可以减少诸如碱等的化学品的消耗，并且通过该方法也减少待处理的废水的量。

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