Modified support materials for catalysts
    2.
    发明授权
    Modified support materials for catalysts 失效
    用于催化剂的改性载体材料

    公开(公告)号:US07518014B2

    公开(公告)日:2009-04-14

    申请号:US11285436

    申请日:2005-11-21

    IPC分类号: C07C67/00

    摘要: The present invention relates to a method of producing a catalyst or pre-catalyst suitable for assisting in the production of alkenyl alkanoates. The method includes contacting a modifier precursor to a support material to form a modified support material. One or more catalytic component precursors (palladium or gold) may be contacted to the modified support material. The atomic ratio of gold to palladium is preferably in the range of about 0.3 to about 0.90. The support materials with the catalytic component may then be reduced using a reducing environment. A composition for catalyzing the production of an alkenyl alkanoates including a modified support material with palladium and gold is also included within the invention. Catalysts of the present invention may be used to produce alkenyl alkanoates in general and vinyl acetate in particular and are useful to produce low EA/VA ratios while maintaining or improving CO2 selectivity.

    摘要翻译: 本发明涉及一种制备适于辅助生产链烷酸链烯酯的催化剂或预催化剂的方法。 该方法包括使改性剂前体与载体材料接触以形成改性的载体材料。 一种或多种催化组分前体(钯或金)可以与改性的载体材料接触。 金与钯的原子比优选在约0.3至约0.90的范围内。 然后可以使用还原环境来减少具有催化组分的载体材料。 用于催化生产含钯和金的改性载体材料的链烷酸酯的组合物也包括在本发明内。 本发明的催化剂通常可用于制备烯基链烷酸酯,特别是乙酸乙烯酯,并且可用于在保持或提高CO 2选择性的同时产生低的EA / VA比。

    Microbial process for the preparation of acetic acid, as well as solvent for its extraction from the fermentation broth
    3.
    发明授权
    Microbial process for the preparation of acetic acid, as well as solvent for its extraction from the fermentation broth 失效
    用于制备乙酸的微生物过程以及从发酵液中提取的溶剂

    公开(公告)号:US07196218B2

    公开(公告)日:2007-03-27

    申请号:US10839663

    申请日:2004-05-05

    IPC分类号: C07C51/52 B01D11/04 C12P7/54

    摘要: A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. Solvent mixtures formed of such a modified solvent with a desired co-solvent, preferably a low boiling hydrocarbon, are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.

    摘要翻译: 用于从水流中萃取乙酸的改性的与水不混溶的溶剂是高度支化的二烷基胺的基本上纯的异构体混合物。 由这种改性溶剂与所需的共溶剂,优选低沸点烃形成的溶剂混合物可用于从含水气流中萃取乙酸。 用于生产乙酸的厌氧微生物发酵方法在限制通过溶剂形成酰胺的条件下使用这种溶剂,从而提高乙酸回收的效率。 乙酸直接萃取方法和乙酸萃取发酵方法也采用改性溶剂,提高乙酸生产效率。 在微生物发酵的能源含有二氧化碳的情况下也可获得这种效率的提高,并且该方法包括在溶剂中萃取乙酸之前的二氧化碳汽提步骤。

    Hydroformylation using improved catalysts comprising rhodium and
diphosphino ligands
    4.
    发明授权
    Hydroformylation using improved catalysts comprising rhodium and diphosphino ligands 失效
    使用包含铑和二磷配体的改进的催化剂进行加氢甲酰化

    公开(公告)号:US4139565A

    公开(公告)日:1979-02-13

    申请号:US783121

    申请日:1977-03-31

    摘要: In hydroformylating an ethylenically-unsaturated compound to produce a formyl-substituted derivative using as catalyst rhodium hydrido carbonyl in complex combination with a disphosphino ligand, a high ratio of the normal aldehyde to the iso-aldehyde in the product can be obtained even at very low ratios of ligand to rhodium in the catalyst mixture by using as the ligand a cyclic compound having in the ring two adjacent carbon atoms between the trans position of which the minimum and maximum attainable dihedral angels are, respectively, at least about 90.degree. and not more than about 180.degree., each of these adjacent carbon atoms being substituted with a phosphinomethyl group, the phosphinomethyl groups being in trans relationship to one another. If there are maintained in the reaction zone at least about 1.5 moles of the ligand per atom of rhodium, the desired results are obtained and higher ligand:rhodium ratios are not necessary.

    摘要翻译: 在加氢甲酰化烯键式不饱和化合物以产生甲酰取代的衍生物,使用与分配膦配位体复合组合的催化剂铑氢化羰基,即使在非常低的情况下也可以获得产物中正醛与异醛的高比例 通过使用作为配位体的配位体与铑的比例,其中环状化合物在环的两个相邻碳原子之间的最小和最大可达到的二面角分别为至少约90°而不是更多 大约180°,这些相邻碳原子中的每一个都被膦基甲基取代,膦基甲基彼此反应。 如果在反应区中保持每个原子铑至少约1.5摩尔的配体,则获得所需的结果,并且不需要更高的配体:铑比。

    Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth
    5.
    发明授权
    Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth 有权
    用于制备乙酸的微生物过程以及从发酵液中提取的溶剂

    公开(公告)号:US06368819B1

    公开(公告)日:2002-04-09

    申请号:US09786544

    申请日:2001-03-07

    IPC分类号: C12P3900

    摘要: A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. This solvent is substantially devoid of mono-alkyl amines and alcohols. Solvent mixtures formed of such a modified solvent with a desired cosolvent, preferably a low boiling hydrocarbon which forms an azeotrope with water are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.

    摘要翻译: 用于从水流中萃取乙酸的改性的与水不混溶的溶剂是高度支化的二烷基胺的基本上纯的异构体混合物。 该溶剂基本上不含单烷基胺和醇。 由这种改性溶剂与所需共溶剂形成的溶剂混合物,优选与水形成共沸物的低沸点烃可用于从含水气流中萃取乙酸。 用于生产乙酸的厌氧微生物发酵方法在限制通过溶剂形成酰胺的条件下使用这种溶剂,从而提高乙酸回收的效率。 乙酸直接萃取方法和乙酸萃取发酵方法也采用改性溶剂,提高乙酸生产效率。 在微生物发酵的能源含有二氧化碳的情况下也可获得这种效率的提高,并且该方法包括在溶剂中萃取乙酸之前的二氧化碳汽提步骤。

    Microbial process for the preparation of acetic acid, as well as solvent for its extraction from the fermentation broth
    7.
    发明授权
    Microbial process for the preparation of acetic acid, as well as solvent for its extraction from the fermentation broth 失效
    用于制备乙酸的微生物过程以及从发酵液中提取的溶剂

    公开(公告)号:US06753170B2

    公开(公告)日:2004-06-22

    申请号:US10053195

    申请日:2002-01-16

    IPC分类号: C12P754

    摘要: A modified water-immiscible solvent useful in the extraction of acetic acid from aqueous streams is a substantially pure mixture of isomers of highly branched di-alkyl amines. Solvent mixtures formed of such a modified solvent with a desired co-solvent, preferably a low boiling hydrocarbon, are useful in the extraction of acetic acid from aqueous gaseous streams. An anaerobic microbial fermentation process for the production of acetic acid employs such solvents, under conditions which limit amide formation by the solvent and thus increase the efficiency of acetic acid recovery. Methods for the direct extraction of acetic acid and the extractive fermentation of acetic acid also employ the modified solvents and increase efficiency of acetic acid production. Such increases in efficiency are also obtained where the energy source for the microbial fermentation contains carbon dioxide and the method includes a carbon dioxide stripping step prior to extraction of acetic acid in solvent.

    摘要翻译: 用于从水流中萃取乙酸的改性的与水不混溶的溶剂是高度支化的二烷基胺的基本上纯的异构体混合物。 由这种改性溶剂与所需的共溶剂,优选低沸点烃形成的溶剂混合物可用于从含水气流中萃取乙酸。 用于生产乙酸的厌氧微生物发酵方法在限制通过溶剂形成酰胺的条件下使用这种溶剂,从而提高乙酸回收的效率。 乙酸直接萃取方法和乙酸萃取发酵方法也采用改性溶剂,提高乙酸生产效率。 在微生物发酵的能源含有二氧化碳的情况下也可获得这种效率的提高,并且该方法包括在溶剂中萃取乙酸之前的二氧化碳汽提步骤。

    Reduction of catalyst deactivation in processes for hydroformylation of
olefins with rhodium complex catalysts
    9.
    发明授权
    Reduction of catalyst deactivation in processes for hydroformylation of olefins with rhodium complex catalysts 失效
    在铑络合物催化剂的烯烃加氢甲酰化方法中减少催化剂失活

    公开(公告)号:US4151209A

    公开(公告)日:1979-04-24

    申请号:US846296

    申请日:1977-10-28

    CPC分类号: C07C45/50

    摘要: In a process for hydroformylating an olefin in the presence of a catalyst comprising rhodium in complex combination with carbon monoxide and a triorganophosphorus ligand, progressive deactivation of the catalyst, as well as loss of the ligand species through by-product formation, are reduced by continuously stripping the liquid reaction medium to a degree such that the content of high-boiling organophosphorus by-products therein is maintained at a low level such that the ratio of phosphorus contained in said high-boiling by-products to phosphorus contained in the ligand present in the reaction medium does not exceed about 0.2.

    摘要翻译: 在包含与一氧化碳和三有机磷配体复合组合的铑的催化剂存在下的烯烃加氢甲酰化的方法中,通过连续地减少催化剂的逐渐失活以及通过副产物形成的配体物质的损失 将液体反应介质汽提到一定程度,使得其中的高沸点有机磷副产物的含量保持在低水平,使得所述高沸点副产物中所含的磷与存在于配体中的配体中所含的磷的比例 反应介质不超过约0.2。