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    • 5. 发明授权
    • Method for producing an aldehyde
    • 醛的制备方法
    • US5426238A
    • 1995-06-20
    • US249848
    • 1994-05-26
    • Tomoyuki MoriAkio UedaKouichi Fujita
    • Tomoyuki MoriAkio UedaKouichi Fujita
    • C07C45/50
    • C07C45/50
    • A method for producing an aldehyde, which comprises reacting an olefin with carbon monoxide and hydrogen in a hydroformylation reaction zone in the presence of a rhodium catalyst having an organophosphorus compound as a ligand, wherein a reaction solution withdrawn from the hydroformylation reaction zone, which contains an unreacted olefin, an aldehyde product and the catalyst, is countercurrently contacted with carbon monoxide and hydrogen in a contact tower to separate and recover the unreacted olefin without substantially deactivating the rhodium catalyst and supplying the recovered unreacted olefin together with the carbon monoxide and the hydrogen to the hydroformylation reaction zone.
    • 一种生产醛的方法,其包括在具有有机磷化合物作为配体的铑催化剂存在下,在加氢甲酰化反应区中使烯烃与一氧化碳和氢反应,其中从加氢甲酰化反应区取出的反应溶液含有 未反应的烯烃,醛产物和催化剂在接触塔中与一氧化碳和氢气逆流接触以分离和回收未反应的烯烃,而基本上不使铑催化剂失活并将回收的未反应的烯烃与一氧化碳和氢气一起供应 加氢甲酰化反应区。
    • 6. 发明授权
    • Process for preparing a rhodium complex solution and process for
producing an aldehyde
    • 制备铑配合物溶液的方法和制备醛的方法
    • US5936130A
    • 1999-08-10
    • US926481
    • 1997-09-10
    • Tomoyuki MoriMasaki TakaiTomohiko InoueKazuyuki Yokoyama
    • Tomoyuki MoriMasaki TakaiTomohiko InoueKazuyuki Yokoyama
    • C01G55/00B01J31/24B01J31/40C07C45/50C07C47/055
    • B01J31/1845B01J31/2404B01J31/4046B01J31/4053C07C45/50B01J2231/321B01J2531/822B01J31/0235B01J31/04B01J31/26Y02P20/584
    • 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.
    • 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。
    • 7. 发明授权
    • Method for producing aldehydes
    • 醛的生产方法
    • US5672766A
    • 1997-09-30
    • US568970
    • 1995-12-07
    • Tomoyuki MoriMasaki TakaiTomohiko Inoue
    • Tomoyuki MoriMasaki TakaiTomohiko Inoue
    • C07C45/50
    • C07C45/50
    • A method for producing aldehydes, which comprises reacting an olefinic unsaturated compound with carbon monoxide and hydrogen for hydroformylation in the presence of a rhodium-phosphite complex catalyst to obtain a reaction product solution containing the rhodium-phosphite complex catalyst and an aldehyde product, and separating from the reaction product solution at least one component selected from the group consisting of carbon monoxide, hydrogen, an unreacted olefinic unsaturated compound, the aldehyde product, a solvent, a medium-boiling by-product and a high-boiling by-product by a separating operation, wherein at least one separating operation is carried out substantially in the absence of water, and the temperature and the residence time in the separating operation are selected to be within such ranges that value P calculated from the following formula (1) would be at most 1: P=5.0.times.10.sup.3 .times.exp�-5000/(T.sub.1 +273)!.times..theta.T.sub.1(1) where T.sub.1 is the maximum temperature (.degree.C.) in the separating operation, and .theta.T.sub.1 is the residence time (minutes) of the liquid in the separating operation.
    • 一种生产醛的方法,其包括使烯属不饱和化合物与一氧化碳和氢气在铑 - 亚磷酸盐配合物催化剂存在下进行加氢甲酰化反应,得到含有铑 - 亚磷酸盐配合物催化剂和醛产物的反应产物溶液,并分离 从反应产物溶液中选择一种或多种选自一氧化碳,氢气,未反应的烯属不饱和化合物,醛产物,溶剂,中沸腾副产物和高沸点副产物的至少一种组分 分离操作,其中基本上在没有水的情况下进行至少一个分离操作,并且将分离操作中的温度和停留时间选择为在下式(1)计算出的值P为 最多1:P = 5.0×103×exp [-5000 /(T1 + 273)]×θT1(1)其中T1是分离中的最高温度(℃) 操作,θT1是分离操作中液体的停留时间(分钟)。