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1. 发明授权

US5200166A Purification of hydrogen peroxide solution 失效
标题翻译：纯化过氧化氢溶液
公开(公告)号：US5200166A
公开(公告)日：1993-04-06
申请号：US815182
申请日：1991-12-31
申请人： Shujiro Shiga , Yasuyoshi Sawaguri , Koji Kabasawa , Tatsuya Momobayashi
发明人： Shujiro Shiga , Yasuyoshi Sawaguri , Koji Kabasawa , Tatsuya Momobayashi
IPC分类号： B01J41/04 , C01B15/013
CPC分类号： C01B15/0135
摘要： A process for purifying a hydrogen peroxide solution is disclosed, comprising treating a 10 to 60% by weight hydrogen peroxide solution having a pH between 1.5 and 5.0 and containing anionic impurities with a hydrogencarbonate type or carbonate type anion exchange resin while adding an acid or a salt thereof having an acid dissociation constant pKa in water of not more than 5 to the hydrogen peroxide solution to be treated continuously or semi-continuously in an amount of from 0.5 to 5 milli-equivalents per liter of hydrogen peroxide solution. The hydrogen peroxide decomposing activity of the anion exchange resin can be inhibited without decreasing a rate of removal of strong acid radicals in the anionic impurities thereby minimizing oxygen evolution due to decomposition of hydrogen peroxide.
摘要翻译：公开了一种用于纯化过氧化氢溶液的方法，其包括在加入酸或酸的情况下，将pH为1.5-5.0的10至60重量％的过氧化氢溶液和含有阴离子杂质的碳酸氢盐型或碳酸盐型阴离子交换树脂其在水中的酸解离常数pKa为不超过5的连续或半连续的过氧化氢溶液，其量为0.5-5毫当量/升过氧化氢溶液。可以抑制阴离子交换树脂的过氧化氢分解活性，而不会降低阴离子杂质中强酸性基团的除去速率，从而最小化由于过氧化氢分解引起的氧析出。

2. 发明授权

US5064879A Method for sorbing metallic ions using ethylene-N,N-dialkyl aminoalkyl acrylates polymers 失效
标题翻译：使用乙烯-N，N-二烷基氨基丙烯酸酯聚合物分离金属离子的方法
公开(公告)号：US5064879A
公开(公告)日：1991-11-12
申请号：US604047
申请日：1990-10-25
申请人： Shujiro Shiga , Koji Kabasawa , Tadayuki Ohmae , Hisao Tanaka
发明人： Shujiro Shiga , Koji Kabasawa , Tadayuki Ohmae , Hisao Tanaka
IPC分类号： G21F9/12 , B01D15/00 , B01J20/26 , B01J20/30 , C02F1/28 , C02F1/42 , C02F1/58 , C08F210/02 , C08F220/34 , G21F9/00
CPC分类号： B01J20/26 , C02F1/285 , C22B3/24 , Y02P10/234
摘要： A metallic ion sorber capable of absoring ions of a metal excluding iron and cobalt and a method of sorbing ions of a metal excluding iron and cobalt are disclosed. The sorber comprises an ethylene copolymer containing from 40 to 95% by weight of ethylene and from 5 to 60% by weight of at least one of aminoalkyl acrylate compounds represented by formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group;R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; andn represents an integer of from 1 to 4,and having a number average molecular weight of from 5,000 to 50,000.

3. 发明授权

US5115036A Metallic ion sorber 失效
标题翻译：金属离子
公开(公告)号：US5115036A
公开(公告)日：1992-05-19
申请号：US602888
申请日：1990-10-25
申请人： Shujiro Shiga , Koji Kabasawa , Tadayuki Ohmae , Hisao Tanaka
发明人： Shujiro Shiga , Koji Kabasawa , Tadayuki Ohmae , Hisao Tanaka
IPC分类号： G21F9/12 , B01D15/00 , B01J20/26 , B01J20/30 , C02F1/28 , C02F1/42 , C02F1/58 , C08F210/02 , C08F220/34 , G21F9/00
CPC分类号： B01J20/26 , C02F1/285 , C22B3/24 , Y02P10/234
摘要： A metallic ion sorber capable of absorbing ions of a metal excluding iron and cobalt and a method of sorbing ions of a metal excluding iron and cobalt are disclosed. The sorber comprises an ethylene copolymer containing from 40 to 95% by weight of ethylene and from 5 to 60% by weight of at least one of aminoalkyl acrylate compounds represented by formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 1 to 4, and having a number average molecular weight of from 5,000 to 50,000.

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