利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.022 秒)

    Process for the production of alkylene carbonate
    3.
    发明授权
    Process for the production of alkylene carbonate 失效
    碳酸亚烷基酯的制备方法

    公开(公告)号：US4877886A

    公开(公告)日：1989-10-31

    申请号：US063977

    申请日：1987-06-19

    申请人： Bernard C. Ream

    发明人： Bernard C. Ream

    IPC分类号： C07D317/36 ,  B01D9/02 ,  C07D317/38

    CPC分类号： C07D317/38

    摘要： Cyclic alkylene carbonates are produced by the homogeneous catalytic reaction of alkylene oxides with carbon dioxide during which process, polyglycols are formed. The catalyst is separated by distallation from the alkylene carbonate and is recycled to the reaction while associated with polyglycols. A purge stream is removed from the recycle to prevent an undue concentration of polyglycols in the reaction and catalyst is separated from the purge stream by acylation of the polyglycols enabling precipitation of the catalyst.

    Monoalkylene glycol production using mixed metal framework compositions
    5.
    发明授权
    Monoalkylene glycol production using mixed metal framework compositions 失效
    使用混合金属骨架组合物制备单亚烷基二醇

    公开(公告)号：US4967018A

    公开(公告)日：1990-10-30

    申请号：US423703

    申请日：1989-10-18

    申请人： Hwaili Soo ,  Bernard C. Ream ,  John H. Robson

    发明人： Hwaili Soo ,  Bernard C. Ream ,  John H. Robson

    IPC分类号： B01J23/00 ,  B01J23/84 ,  B01J23/847 ,  B01J27/00 ,  B01J27/08 ,  B01J27/18 ,  B01J27/232 ,  B01J27/24 ,  B01J27/32 ,  B01J31/04 ,  C07B61/00 ,  C07C27/00 ,  C07C29/10 ,  C07C29/132 ,  C07C31/20 ,  C07C67/00

    CPC分类号： C07C29/106 ,  B01J23/007 ,  B01J23/84 ,  B01J27/00 ,  B01J27/08 ,  B01J27/18 ,  B01J27/232 ,  B01J27/24 ,  Y02P20/52 ,  Y02P20/582

    摘要： A process for the catalytic hydrolysis of alkylene oxide to alkylene glycol using a hydrothermally stable, mixed metal framework catalyst composition selected from(a) material having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (OH) 2x+3y-nz A.sub.z.sup.n-. a 1 H.sub.2 O (I) wherein M is at least one divalent metal cation; Q is at least one trivalent metal cation; and A is at least one anion providing a valence (n.sup.31), wherein n is at least 1, and wherein a is a positive number, M, Q, and A are provided in a proportion such that x/y is a number equal to or greater than 1, z has a value greater than zero and 2x+3y-nz is a positive number, and M, Q and A are selected to provide a layered structure, and(b) material prepared by calcining the material of formula (I) having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (O).sub.(2x+3y-nz)/2D.sub.z.sup.n-(II) wherein M, Q, x, y, z and n have the same meanings defined above in connection with formula (I) and D is at least one nonvolatile anion.

    摘要翻译： 使用选自（a）具有式Mx2 + Qy3 +（OH）2x + 3y-nz Azn-的材料的水热稳定的混合金属骨架催化剂组合物将烯化氧催化水解成亚烷基二醇的方法。 1 H 2 O（I）其中M是至少一种二价金属阳离子; Q是至少一种三价金属阳离子; A是至少一种提供价态的阴离子（n31），其中n至少为1，并且其中a为正数，M，Q和A的比例使得x / y为等于 或大于1，z具有大于零的值，并且2x + 3y-nz是正数，并且选择M，Q和A以提供层状结构，和（b）通过煅烧式（ I）具有式Mx2 + Qy3 +（O）（2x + 3y-nz）/ 2Dzn-（Ⅱ）其中M，Q，x，y，z和n具有与上述式（I）和 D是至少一种非挥发性阴离子。

    Process for refining ethylene glycol
    6.
    发明授权
    Process for refining ethylene glycol 失效
    乙二醇精制方法

    公开(公告)号：US4830712A

    公开(公告)日：1989-05-16

    申请号：US102369

    申请日：1987-09-29

    申请人： John W. Crandall ,  Bernard C. Ream

    发明人： John W. Crandall ,  Bernard C. Ream

    IPC分类号： C07C27/00 ,  C07C29/149 ,  C07C29/80 ,  C07C31/20 ,  C07C67/00

    CPC分类号： C07C29/80 ,  Y10S203/06 ,  Y10S203/20 ,  Y10S203/24

    摘要： A process is described for recovering polyester-grade ethylene glycol from crude ethylene glycol containing at least one component which has a normal boiling point below that of ethylene glycol, and which can form a UV absorber in the presence of ethylene glycol which comprises supplying to an ethylene glycol distillation system, preferably comprising a fractional distillation zone having an upper portion, a lower portion and an intermediate portion a crude ethylene glycol stream at a determined pH of less than about 7.5; maintaining within the intermediate portion of the fractional distillation zone a diluent having a boiling point below that of the at least one component, such as methanol, at a concentration sufficient to reduce the formation of UV absorber in the intermediate portion wherein at least ethylene glycol, the at least one component and the diluent, are present, and withdrawing ethylene glycol substantially free of the at least one component from the lower portion of the fractional distillation zone.

    Mixed metal framework compositions for monoalkylene glycol production
    9.
    发明授权
    Mixed metal framework compositions for monoalkylene glycol production 失效
    用于单亚烷基二醇生产的混合金属骨架组合物

    公开(公告)号：US5064804A

    公开(公告)日：1991-11-12

    申请号：US527375

    申请日：1990-05-23

    申请人： Hwaili Soo ,  Bernard C. Ream ,  John H. Robson

    发明人： Hwaili Soo ,  Bernard C. Ream ,  John H. Robson

    IPC分类号： B01J23/00 ,  B01J23/84 ,  B01J23/847 ,  B01J27/00 ,  B01J27/08 ,  B01J27/18 ,  B01J27/232 ,  B01J27/24 ,  B01J27/32 ,  B01J31/04 ,  C07B61/00 ,  C07C27/00 ,  C07C29/10 ,  C07C29/132 ,  C07C31/20 ,  C07C67/00

    CPC分类号： C07C29/106 ,  B01J23/007 ,  B01J23/84 ,  B01J27/00 ,  B01J27/08 ,  B01J27/18 ,  B01J27/232 ,  B01J27/24 ,  Y02P20/52 ,  Y02P20/582

    摘要： A process for the catalytic hydrolysis of alkylene oxide to alkylene glycol using a hydrothermally stable, mixed metal framework catalyst composition selected from(a) material having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (OH).sub.2x+3y-nz A.sub.z.sup.n- .multidot.a H.sub.2 O (I) wherein M is at least one divalent metal cation; Q is at least one trivalent metal cation; and A is at least one anion providing a valence (n.sup.-), wherein n is at least 1, and wherein a is a positive number, M, Q, and A are provided in a proportion such that x/y is a number equal to or greater than 1, z has a value greater than zero and 2x+3y-nz is a positive number, and M, Q and A are selected to provide a layered structure, and(b) material prepared by calcining the material of formula (I) having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (O).sub.(2x+3y-nz)/2 D.sub.z.sup.n-(II) wherein M, Q, x, y, z and n have the same meanings defined above in connection with formula (I) and D is at least one nonvolatile anion.

    摘要翻译： 使用选自（a）具有式Mx2 + Qy3 +（OH）2x + 3y-nzAzn-xaH2O（I）的材料的水热稳定的混合金属骨架催化剂组合物将烯化氧催化水解成亚烷基二醇的方法，其中M 是至少一种二价金属阳离子; Q是至少一种三价金属阳离子; 并且A是提供价数（n-n）的至少一种阴离子，其中n至少为1，并且其中a为正数，M，Q和A以使x / y为数相等的比例 大于1，z的值大于零，2x + 3y-nz为正数，M，Q和A选择为提供层状结构，（b）通过煅烧式 （I）具有式Mx2 + Qy3 +（O）（2x + 3y-nz）/ 2Dzn-（II）其中M，Q，x，y，z和n具有与上述式（I） D为至少一种非挥发性阴离子。

    Process for the production of alkylene carbonate and recovery of catalyst
    10.
    发明授权
    Process for the production of alkylene carbonate and recovery of catalyst 失效
    生产碳酸亚烃和催化剂回收的方法

    公开(公告)号：US4952542A

    公开(公告)日：1990-08-28

    申请号：US389515

    申请日：1989-08-04

    申请人： Bernard C. Ream

    发明人： Bernard C. Ream

    IPC分类号： C07D317/38

    CPC分类号： C07D317/38

    摘要： Cyclic alkylene carbonates are produced by the homogeneous catalytic reaction of alkylene oxides with carbon dioxide during which process, polyglycols are formed. The catalyst is separated by distillation from the alkylene carbonate and is recycled to the reaction while associated with polyglycols. A purge stream is removed from the recycle to prevent an undue concentration of polyglycols in the reaction and catalyst is separated from the purge stream by acylation of the polyglycols enabling precipitation of the catalyst.

    摘要翻译： 环状亚烷基碳酸酯是通过烯化氧与二氧化碳的均相催化反应制备的，在该过程中形成聚二醇。 催化剂通过蒸馏从碳酸亚烃酯中分离出来，并与聚二醇结合而再循环到反应中。 从循环中除去清洗流，以防止反应中过多浓度的聚二醇，并且通过酰化聚乙二醇使催化剂与清洗流分离，从而使催化剂沉淀。