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    Process for preparing a rhodium complex solution and process for producing an aldehyde
    13.
    发明授权
    Process for preparing a rhodium complex solution and process for producing an aldehyde 失效
    制备铑配合物溶液的方法和制备醛的方法

    公开(公告)号：US5936130A

    公开(公告)日：1999-08-10

    申请号：US926481

    申请日：1997-09-10

    申请人： Tomoyuki Mori ,  Masaki Takai ,  Tomohiko Inoue ,  Kazuyuki Yokoyama

    发明人： Tomoyuki Mori ,  Masaki Takai ,  Tomohiko Inoue ,  Kazuyuki Yokoyama

    IPC分类号： C01G55/00 ,  B01J31/24 ,  B01J31/40 ,  C07C45/50 ,  C07C47/055

    CPC分类号： B01J31/1845 ,  B01J31/2404 ,  B01J31/4046 ,  B01J31/4053 ,  C07C45/50 ,  B01J2231/321 ,  B01J2531/822 ,  B01J31/0235 ,  B01J31/04 ,  B01J31/26 ,  Y02P20/584

    摘要： A process for producing a rhodium complex solution, which comprises contacting an aqueous solution of a water-soluble rhodium compound and an organic solvent solution of a water-insoluble tertiary organic phosphorus compound, preferably in the presence of a C.sub.2-8 carboxylic acid, in a gas atmosphere containing carbon monoxide, followed by two phase separation, and recovering an organic solvent phase containing a rhodium-tertiary organic phosphorus compound complex. As the above aqueous solution of a rhodium compound, an aqueous solution having rhodium extracted into an aqueous phase from a waste catalyst liquid separated from a hydroformylation reaction step by oxidation treatment in the presence of a recovery accelerator such as a carboxylic acid, an amine, ammonia or an inorganic acid, is used, whereby recycling of rhodium represented by hydroformylation reaction/recovery of the catalyst/regeneration of the catalyst, is made possible, and a cumbersome step of preparing a complex catalyst from an inorganic salt or the like, or a step of preparing a soluble salt from a metal or oxide by combustion in water of the recovered catalyst, can be omitted.

    摘要翻译： 一种制备铑络合物溶液的方法，其包括使水溶性铑化合物的水溶液与水不溶性叔有机磷化合物的有机溶剂溶液，优选在C2-8羧酸存在下，在 含有一氧化碳的气体气氛，然后进行两相分离，并回收含有铑 - 叔有机磷化合物络合物的有机溶剂相。 作为上述铑化合物的水溶液，通过在回收促进剂如羧酸，胺等存在下，通过氧化处理，从加氢甲酰化反应步骤中分离出的废催化剂液体将含有铑的水溶液萃取到水相中， 氨或无机酸，从而可以通过加氢甲酰化反应/催化剂的回收/催化剂的再生来代替的铑的回收成为可能，并且从无机盐等制备复合催化剂的繁琐步骤，或 可以省略通过在回收的催化剂的水中燃烧而从金属或氧化物制备可溶性盐的步骤。

    Manufacture of formaldehyde
    18.
    发明授权
    Manufacture of formaldehyde 失效
    甲醛制造

    公开(公告)号：US4209466A

    公开(公告)日：1980-06-24

    申请号：US486676

    申请日：1974-07-08

    申请人： Dieter Wolf ,  Hans Diem ,  Otto Grabowsky ,  Guenther Matthias

    发明人： Dieter Wolf ,  Hans Diem ,  Otto Grabowsky ,  Guenther Matthias

    IPC分类号： C07C45/00 ,  C07C45/38 ,  C07C47/055 ,  C07C67/00 ,  C07C45/16

    CPC分类号： C07C45/38

    摘要： Manufacture of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst using methanol obtained from a condensate derived from the evaporation of aqueous reaction mixtures in the synthesis of urea resins and then treated with caustic soda solution under specific conditions of temperature, pressure, residence time and initial formaldehyde concentration. The formaldehyde obtained is a disinfectant, tanning agent, reducing agent and starting material for the manufacture of synthetic resins, adhesives and plastics.

    摘要翻译： 在银催化剂存在下通过甲醇的氧化脱氢制备甲醛，使用甲醇从得自冷凝物的蒸发水溶液中合成脲醛树脂，然后在苛性钠溶液中在特定温度，压力条件下进行处理， 停留时间和初始甲醛浓度。 获得的甲醛是用于制造合成树脂，粘合剂和塑料的消毒剂，鞣剂，还原剂和原料。

    Manufacture of formaldehyde
    20.
    发明授权
    Manufacture of formaldehyde 失效
    甲醛制造

    公开(公告)号：US3932522A

    公开(公告)日：1976-01-13

    申请号：US236971

    申请日：1972-03-22

    申请人： Karl Seither ,  Guenther Matthias ,  Hans Diem ,  Oskar Hussy ,  Hans Haas

    发明人： Karl Seither ,  Guenther Matthias ,  Hans Diem ,  Oskar Hussy ,  Hans Haas

    IPC分类号： C07C45/38 ,  C07C47/055 ,  C07C47/04

    CPC分类号： C07C45/38

    摘要： The manufacture of formaldehyde by oxidative dehydrogenation of crude methanol in the presence of a silver catalyst, the crude methanol being caused to impinge against baffle plates before the reaction takes place, the impurities which separate at the baffle plates being collected. The formaldehyde manufactured by the process of the invention is valuable as a disinfectant, tanning agent, reducing agent and intermediate in the manufacture of synthetic resins, adhesives and plastics.

    摘要翻译： 在银催化剂存在下，通过粗甲醇的氧化脱氢制造甲醛，使粗甲醇在反应发生之前撞击挡板，收集在挡板上分离的杂质。 通过本发明方法制造的甲醛作为消毒剂，鞣剂，还原剂和合成树脂，粘合剂和塑料制造中的中间体是有价值的。