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公开(公告)号：US5599965A
公开(公告)日：1997-02-04
申请号：US279328
申请日：1994-07-22
CPC分类号： C07C68/005
摘要： C.sub.1 -C.sub.4 -Dialkyl carbonates can be obtained from the corresponding C.sub.1 -C.sub.4 -alkanols, carbon monoxide and oxygen by reacting these substances in the presence of Cu salts, the water of reaction being limited to less than 10 wt % in the reaction mixture by at least partial withdrawal.
摘要翻译： C 1 -C 4 - 碳酸二烷基酯可以通过在Cu盐存在下使这些物质反应从相应的C 1 -C 4 - 链烷醇，一氧化碳和氧中获得，反应的水在反应混合物中被限制在小于10重量％ 至少部分撤回。
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公开(公告)号：US5212280A
公开(公告)日：1993-05-18
申请号：US767729
申请日：1991-09-30
申请人： Volker Serini , Uwe Westeppe , Gerd Fengler , Manfred Hajek , Carl Casser , Helmut Waldmann
发明人： Volker Serini , Uwe Westeppe , Gerd Fengler , Manfred Hajek , Carl Casser , Helmut Waldmann
CPC分类号： C07C39/17 , C07C37/20 , C08G64/06 , C07C2102/24 , C07C2102/28
摘要： Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable properties.
摘要翻译： 二羟基二苯基双环烷烃的特征在于它们在双环脂族组分中含有9至13个环C原子。 发现所公开的化合物适用于制备具有良好性能的高分子量热塑性聚碳酸酯树脂。
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公开(公告)号：US4436943A
公开(公告)日：1984-03-13
申请号：US477464
申请日：1983-03-21
申请人： Gebhard Rauleder , Helmut Waldmann
发明人： Gebhard Rauleder , Helmut Waldmann
CPC分类号： C07C1/24 , C07C2101/16 , C07C2527/054 , C07C2527/173 , C07C2531/025
摘要： 2,2-Dicyclohexenylpropane is prepared by heating 4,4'-dioxydicyclohexylpropane in the presence of a strong acid, under pressures from 1 to 50 mbar and at 120.degree. to 220.degree. C., distilling off the 2,2-dicyclohexenylpropane produced with the water formed and separating the water out of the top product from the distillation.
摘要翻译： 通过在强酸存在下，在1至50毫巴的压力和120至220℃下加热4,4'-二氧二环己基丙烷制备2,2-二环己基丙烷，蒸馏除去由 水从蒸馏中形成并将顶部产物中的水分离出来。
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公开(公告)号：US4410743A
公开(公告)日：1983-10-18
申请号：US364344
申请日：1982-04-01
申请人： Klaus G. Wilms , Helmut Waldmann , Johann Grolig
发明人： Klaus G. Wilms , Helmut Waldmann , Johann Grolig
CPC分类号： C07C29/50
摘要： 2,3-Dimethylbutane-2,3-diol is prepared by a process in which 2,3-dimethylbutenes are reacted with oxygen or an oxygen-containing gas, in the presence of 0.01 to 20 parts by weight of water (relative to 2,3-dimethylbutenes employed), at temperatures of from 40.degree. to 180.degree. C. and residence times of 5 to 150 minutes, without the addition of catalysts.
摘要翻译： 2,3-二甲基丁烷-2,3-二醇通过以下方法制备：其中2,3-二甲基丁烯与氧或含氧气体在0.01至20重量份水（相对于2 ，使用的3-二甲基丁烯），在40℃至180℃的温度和5至150分钟的停留时间，而不加入催化剂。
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公开(公告)号：US4381973A
公开(公告)日：1983-05-03
申请号：US292855
申请日：1981-08-14
摘要： A process for the preparation of pyrocatechol and hydroquinone by reaction of phenol with a peroxidic hydroxylating reagent followed by working-up of the resultant reaction mixture is disclosed. The work-up procedure is carried out in a first rectification column operated under specified conditions and having specified separation stages in a rectification section and a stripping section whereby there is distilled overhead components which boil at a temperature lower than phenol. Taken off from the bottom is a mixture comprising phenol and materials of higher boiling point which are fed into a second rectification column which is also operated under very specified conditions whereby pure phenol is recovered overhead leaving a bottoms comprising phenol pyrocatechol and hydroquinone which are then processed to separate phenol from a mixture of pyrocatechol and hydroquinone.
摘要翻译： 公开了通过苯酚与过氧化羟基化试剂的反应制备邻苯二酚和氢醌的方法，然后处理所得的反应混合物。 处理程序在规定条件下操作的第一精馏塔中进行，并且在精馏段和汽提段中具有特定的分离阶段，由此蒸馏塔顶组分在低于苯酚的温度下沸腾。 从底部排出的是包含苯酚和高沸点物质的混合物，该混合物进料到第二精馏塔中，该第二精馏塔也在非常规定的条件下操作，从而从顶部回收纯苯酚，留下包含苯酚邻苯二酚和氢醌的塔底物，然后将其加工 以将苯酚与邻苯二酚和氢醌的混合物分离。
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公开(公告)号：US4369096A
公开(公告)日：1983-01-18
申请号：US179316
申请日：1980-08-18
申请人： Hermann Seifert , Helmut Waldmann , Rolf Wirthwein , Willi Hofen
发明人： Hermann Seifert , Helmut Waldmann , Rolf Wirthwein , Willi Hofen
IPC分类号： C07D301/32 , C07D303/04 , B01D3/34
CPC分类号： C07D301/32 , C07D303/04
摘要： A process has been developed for the purification of expoxides containing carbonyl compounds as impurities wherein the carbonyl compound content is up to 2% by weight of epoxide. Purification is effected by treatment with compounds containing at least one NH.sub.2 group.
摘要翻译： 已经开发了用于纯化含有作为杂质的羰基化合物的含氧化合物的方法，其中羰基化合物含量高达2重量％的环氧化物。 通过用含有至少一个NH 2基团的化合物处理来进行纯化。
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公开(公告)号：US4321143A
公开(公告)日：1982-03-23
申请号：US161526
申请日：1980-06-20
申请人： Klaus G. Wilms , Helmut Waldmann
发明人： Klaus G. Wilms , Helmut Waldmann
IPC分类号： C02F1/72
摘要： In the process for decreasing the COD-content of effluent by treating with hydrogen peroxide in the presence of a transition metal compound, the improvement which comprises adding to the effluent about 50 to 65% of the calculated quantity of H.sub.2 O.sub.2 required for the total oxidation of the total COD-content of the effluent, the transition metal compound being dissolved in the effluent in an amount such that the molar ratio of H.sub.2 O.sub.2 to transition metal is from about 30:1 to 3:1, bringing the pH initially to about 2 to 9, maintaining the effluent at about 5.degree. to 100.degree. C., and separating from the effluent whatever material has flocculated. Thereafter the effluent can be subjected to conventional biological degradation such as by the activated sludge process.
摘要翻译： 在过渡金属化合物存在下通过用过氧化氢处理来降低流出物的COD含量的方法，其改进包括向流出物中加入约50至65％计算出的总氧化所需的H 2 O 2量 流出物的总COD含量，过渡金属化合物以使得H 2 O 2与过渡金属的摩尔比为约30:1至3:1的量溶解在流出物中，使pH最初达到约2至 9，将流出物保持在约5℃至100℃，并且从流出物中分离出任何物质已经絮凝的物质。 此后，流出物可以经历常规的生物降解，例如通过活性污泥法。
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公开(公告)号：US4294703A
公开(公告)日：1981-10-13
申请号：US165422
申请日：1980-07-02
申请人： Klaus G. Wilms , Helmut Waldmann
发明人： Klaus G. Wilms , Helmut Waldmann
摘要： In the process for decreasing the COD-content of effluent by treating with hydrogen peroxide in the presence of a transition metal compound, the improvement which comprises adding to the effluent about 5 to 40% of the calculated quantity of H.sub.2 O.sub.2 required for the total oxidation of the total COD-content of the effluent, the transition metal compound being dissolved in the effluent in an amount such that the molar ratio of H.sub.2 O.sub.2 to transition metal is from about 30:1 to 3:1, bringing the pH initially to about 2 to 9, maintaining the effluent at about 5.degree. to 100.degree. C., and separating from the effluent whatever material has flocculated. Thereafter the effluent can be subjected to conventional biological degradation such as by the activated sludge process.
摘要翻译： 在过渡金属化合物存在下通过用过氧化氢处理来降低流出物的COD含量的方法，其改进包括向流出物中加入约5至40％的计算量的总氧化所需的H 2 O 2 流出物的总COD含量，过渡金属化合物以使得H 2 O 2与过渡金属的摩尔比为约30:1至3:1的量溶解在流出物中，使pH最初达到约2至 9，将流出物保持在约5℃至100℃，并且从流出物中分离出任何物质已经絮凝的物质。 此后，流出物可以经历常规的生物降解，例如通过活性污泥法。
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公开(公告)号：US4214105A
公开(公告)日：1980-07-22
申请号：US942717
申请日：1978-09-15
CPC分类号： C07C37/60 , Y02P20/582
摘要： A process for the production of pyrocatechol and hydroquinone by the hydroxylation of phenol in the nucleus with hydrogen peroxide, wherein phenol is reacted at the start of the reaction with substantially anhydrous hydrogen peroxide and wherein the reaction is carried out in the presence of a strong acid.
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50.发明授权
公开(公告)号：US4212809A
公开(公告)日：1980-07-15
申请号：US967448
申请日：1978-12-07
IPC分类号： C07D407/06 , A01N43/30 , C07D317/44
CPC分类号： A01N43/30
摘要： The invention relates to a process for the provision of 5-(oxiranylmethyl)-1,3-benzodioxole by reaction of 5-(2-propenyl)1,3-benzodioxole with a percarboxylic acid having 1 to 8 carbon atoms in an inert organic solvent.
摘要翻译： 本发明涉及通过5-（2-丙烯基）-1,3-苯并间二氧杂环戊烯与具有1至8个碳原子的过羧酸在惰性有机物中反应来提供5-（环氧乙烷基甲基）-1,3-苯并间二氧杂环戊烯的方法 溶剂。
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