Recovery method of rhodium
    1.
    发明授权
    Recovery method of rhodium 失效
    铑的回收方法

    公开(公告)号:US5364445A

    公开(公告)日:1994-11-15

    申请号:US102153

    申请日:1993-08-04

    CPC分类号: C22B11/04 C22B3/44 Y02P10/234

    摘要: A method for recovering rhodium comprising the steps of: adding a basic compound to an organic solution containing a rhodium complex containing at least one type of organophosphorus compound as a ligand and an organophosphorus compound, combusting the resultant mixture to ash under a controlled temperature of less than 1,000.degree. C.; and cleaning the ash using a cleaning solution containing a reducing agent.

    摘要翻译: 一种回收铑的方法,包括以下步骤:将碱性化合物加入到含有至少一种有机磷化合物作为配体的铑配合物和有机磷化合物的有机溶液中,将所得混合物在较少的控制温度下燃烧 超过1000℃。 并使用含有还原剂的清洗溶液清洗灰分。

    Method for producing a dimerized aldehyde
    4.
    发明授权
    Method for producing a dimerized aldehyde 失效
    二聚醛生产方法

    公开(公告)号:US5667644A

    公开(公告)日:1997-09-16

    申请号:US599242

    申请日:1996-02-09

    IPC分类号: C07C45/74 C07C45/82

    CPC分类号: C07C45/74 Y02P20/127

    摘要: A method for producing a dimerized aldehyde, which comprises subjecting a feed aldehyde to a condensation reaction and a dehydration reaction in the presence of a basic catalyst, wherein the feed aldehyde is the one having one or two hydrogen atoms at the .alpha.-position, an organic feed stream containing the feed aldehyde is supplied to a reactive distillation column, and the condensation reaction and the dehydration reaction are carried out simultaneously in the reactive distillation column.

    摘要翻译: 一种生产二聚醛的方法,其包括在碱性催化剂存在下使进料醛进行缩合反应和脱水反应,其中进料醛是在α-位具有一个或两个氢原子的进料醛, 将含有进料醛的有机进料流供给反应性蒸馏塔,在反应蒸馏塔中同时进行缩合反应和脱水反应。

    Method for producing an aldehyde
    5.
    发明授权
    Method for producing an aldehyde 失效
    醛的制备方法

    公开(公告)号:US5426238A

    公开(公告)日:1995-06-20

    申请号:US249848

    申请日:1994-05-26

    IPC分类号: C07C45/50

    CPC分类号: C07C45/50

    摘要: 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zone in the presence of a rhodium catalyst having an organophosphorus compound as a ligand, wherein a reaction solution withdrawn from the hydroformylation reaction zone, which contains an unreacted olefin, an aldehyde product and the catalyst, is countercurrently contacted with carbon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.

    摘要翻译: 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。

    Process for preparing a rhodium complex solution and process for
producing an aldehyde
    6.
    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

    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。

    Method for producing aldehydes
    7.
    发明授权
    Method for producing aldehydes 失效
    醛的生产方法

    公开(公告)号:US5672766A

    公开(公告)日:1997-09-30

    申请号:US568970

    申请日:1995-12-07

    IPC分类号: C07C45/50

    CPC分类号: C07C45/50

    摘要: 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.

    摘要翻译: 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)。

    Process for producing alkadienols
    8.
    发明授权
    Process for producing alkadienols 失效
    生产烷二醇的方法

    公开(公告)号:US5557016A

    公开(公告)日:1996-09-17

    申请号:US196180

    申请日:1994-04-06

    IPC分类号: C07C29/36 C07C29/80 C07C33/02

    CPC分类号: C07C29/36 C07C29/80

    摘要: The disclosure describes a process for producing alkadienols comprising the steps of: reacting a conjugated alkadiene with water in a reaction solvent in the presence of a palladium catalyst; distilling the obtained reaction mixture so as to separate the reaction solvent from the reaction mixture while directly supplying heated water, steam or a mixture thereof as a heating medium to a distillation column, under the condition that the temperature of a bottom liquid in the distillation column is not higher than 120.degree. C.; and phase-separating bottoms discharged from the bottom of the distillation column.

    摘要翻译: PCT No.PCT / JP93 / 00891 Sec。 371日期1994年4月6日 102(e)日期1994年4月6日PCT Filed 1993年6月29日PCT Pub。 第WO94 / 00410号公报 日本1994年1月6日本公开内容描述了制备链二烯醇的方法,包括以下步骤:在钯催化剂存在下,使反应溶剂中的共轭链二烯与水反应; 蒸馏得到的反应混合物,以便将反应溶剂从反应混合物中分离出来,同时直接将加热的水,蒸汽或其作为加热介质的混合物供应到蒸馏塔,在蒸馏塔中的底部液体的温度 不高于120℃。 并从蒸馏塔的底部排出的相分离塔底物。

    Method for producing an alcohol and catalyst precursor useful for the
method
    9.
    发明授权
    Method for producing an alcohol and catalyst precursor useful for the method 失效
    用于该方法的醇和催化剂前体的制备方法

    公开(公告)号:US5550302A

    公开(公告)日:1996-08-27

    申请号:US405010

    申请日:1995-03-16

    摘要: A method for producing an alcohol, which comprises reacting an aldehyde with hydrogen in a gas phase in the presence of a hydrogenation catalyst to form a corresponding saturated alcohol, wherein a reduced product of a catalyst precursor composition comprising components represented by the following formula (I):Cu(a)--Cr(b)--Zn(c)--Mn(d)--Ba(e)--X(f) (I)wherein X is a transition metal of Group 8 or 4A of thePeriodic Table, and a to f represent the contents of the respective components as converted to their oxides and have the following values:a: 20 to 50 wt %b: 0 to 50 wt %c: 0 to 50 wt %d: 0.1 to 5.0 wt %e: 0.1 to 5.0 wt %f: 0.01 to 3.0 wt %is used as the hydrogenation catalyst.

    摘要翻译: 一种制备醇的方法,其包括在氢化催化剂存在下使气相中的醛与氢反应以形成相应的饱和醇,其中催化剂前体组合物的还原产物包含由下式(I ):Cu(a)-Cr(b)-Zn(c)-Mn(d)-Ba(e)-X(f)(I)其中X是元素周期表第8或4A族的过渡金属, a至f表示转化为其氧化物的各成分的含量,具有以下值:a:20〜50重量%b:0〜50重量%c:0〜50重量%d:0.1〜5.0重量% e:0.1〜5.0重量%f:0.01〜3.0重量%用作氢化催化剂。