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公开(公告)号：US4466867A
公开(公告)日：1984-08-21
申请号：US467744
申请日：1983-02-18
申请人： Wolfgang Habermann , Peter Hammes , Joachim Felger , Karl-Ludwig Hock , Friedrich Brunnmueller , Helmut Knittel , Joachim Kranz , Rolf Schneider , Peter Thoma
发明人： Wolfgang Habermann , Peter Hammes , Joachim Felger , Karl-Ludwig Hock , Friedrich Brunnmueller , Helmut Knittel , Joachim Kranz , Rolf Schneider , Peter Thoma
CPC分类号： C25B1/00 , C09C1/26 , C01P2006/80
摘要： Blue iron hexacyanoferrate-III pigments are produced by a process wherein complex iron-II hexacyanoferrate-II (Berlin white) is prepared by electrolysis of an aqueous catholyte solution containing (a) an iron-II salt, (b) an alkali metal salt, an ammonium salt or a mixture of these, and (c) hydrogen cyanide, in an electrolysis cell in which the anode chamber and cathode chamber are separated by an ion exchange membrane, using an electrically conductive aqueous liquid in the anode chamber, and the iron-II hexacyanoferrate-II obtained is then converted to the blue pigment.The process gives Berlin white, which is substantially free from salt, in high yield and high purity. Pollution caused by the process is very low, since only a small amount of salt is produced. Compared with the corresponding blue pigments produced by prior art processes, the pigments obtained give purer colorations with better gloss, and are of higher color strength.
摘要翻译： 通过电解含有（a）铁-II盐，（b）碱金属盐的水性阴极电解液的方法制备复合铁 - 六氰基铁酸盐-II（柏林白）的方法制备蓝色六氰合铁酸盐III- 铵盐或它们的混合物，和（c）氰化氢在电解池中，其中阳极室和阴极室由离子交换膜分离，使用阳极室中的导电含水液体，铁 -II六氰基铁酸盐-II然后转化成蓝色颜料。 该方法给出柏林白色，其基本上不含盐，以高产率和高纯度。 该过程造成的污染非常低，因为只产生少量的盐。 与通过现有技术方法生产的相应的蓝色颜料相比，获得的颜料产生更好的着色，并具有较高的着色强度。
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公开(公告)号：US4444667A
公开(公告)日：1984-04-24
申请号：US397235
申请日：1982-07-12
CPC分类号： D21H17/455 , C08F8/00 , D21H17/34
摘要： Sludges are flocculated by the addition of a polymer which is prepared by the homopolymerization of N-vinylformamide in the presence of a free-radical polymerization initiator to give a poly-N-vinylformamide, followed by hydrolysis of from 10 to 90% of the formyl groups in the poly-N-vinylformamide.
摘要翻译： 通过加入通过在自由基聚合引发剂的存在下通过N-乙烯基甲酰胺的均聚而得到的聚N-乙烯基甲酰胺，然后水解10至90％的甲酰基，从而将淤渣絮凝 聚-N-乙烯基甲酰胺中的基团。
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3.发明授权Preparation of dyes which contain sulfonic acid groups and have a low electrolyte content 失效制备含有磺酸基并具有低电解质含量的染料
公开(公告)号：US4560745A
公开(公告)日：1985-12-24
申请号：US263007
申请日：1981-05-12
IPC分类号： C09B67/38 , C09B67/18 , C09B67/24 , C09B67/54 , C09B69/04 , C09B69/02 , C09B67/42 , C09B67/44
CPC分类号： C09B69/04 , C09B67/0072 , C09B67/0096
摘要： A process for the preparation of dyes which contain sulfonic acid groups and have a low electrolyte content, wherein an aqueous solution or suspension, which may or may not contain inorganic salts, of the dye containing sulfonic acid groups is(a) mixed with an amount, equivalent to the said dye, of a non-emulsifying, water-insoluble amine of a total of 12 to 40 carbon atoms, which forms, with the said dye, a salt which is sufficiently lipophilic for it to separate spontaneously from the aqueous phase,(b) the pH is brought to
摘要翻译： 一种制备含有磺酸基并具有低电解质含量的染料的方法，其中含有磺酸基的染料可含有或不含有无机盐的水溶液或悬浮液为（a）与 相当于所述染料的总共12至40个碳原子的非乳化的水不溶性胺，其与所述染料形成足够亲油的盐，以使其与水相自发分离 ，（b）用酸将pH值调至<5，并将批料充分混合，（c）分离两个不同密度的相，（d）由染料的亲脂性铵盐组成的相 混合，用或不用水预先洗涤，制备其磺酸盐的水溶性碱，并且用水分离所得相，并将盐留在水溶液中或从中分离。
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公开(公告)号：US3991118A
公开(公告)日：1976-11-09
申请号：US236210
申请日：1972-03-20
CPC分类号： C07C45/38
摘要： Production of formaldehyde by oxidizing dehydrogenation of methanol in the presence of a silver catalyst and a tertiary or secondary amine. The formaldehyde which can be prepared by the invention is a disinfectant, tanning agent, reducing agent and valuable starting material for the production of synthetic resins, adhesives and plastics.
摘要翻译： 在银催化剂和叔胺或仲胺的存在下，通过氧化甲醇脱氢制备甲醛。 本发明可制备的甲醛是生产合成树脂，粘合剂和塑料的消毒剂，鞣剂，还原剂和有价值的原料。
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