Production method of alkylbenzaldehydes
    1.
    发明授权
    Production method of alkylbenzaldehydes 有权
    烷基苯甲醛的生产方法

    公开(公告)号:US07154008B2

    公开(公告)日:2006-12-26

    申请号:US10963572

    申请日:2004-10-14

    IPC分类号: C07C45/49

    CPC分类号: C07C45/49 C07C47/542

    摘要: In the production of an alkylbenzaldehyde by a method comprising a step of preparing a solution of complex of a starting alkylbenzene and a hydrogen fluoride-boron trifluoride catalyst and a step of formylation by bringing the solution of complex into contact with carbon monoxide, an alkylbenzene having at least one primary alkyl group having two or more carbon atoms on its benzene ring is used as the starting alkylbenzene. The preparation of the solution of complex is carried out in the presence of an aliphatic or alicyclic saturated hydrocarbon having 6 to 10 carbon atoms which contains at least one tertiary carbon atom but contains no quaternary carbon atom. By the combined use of the specific alkylbenzene and the aliphatic or alicyclic saturated hydrocarbon, the disproportionation of the alkylbenzene is prevented and the alkylbenzaldehyde is produced at high yields.

    摘要翻译: 在通过包括以下步骤的方法制备烷基苯甲醛时,所述方法包括通过使配合物溶液与一氧化碳接触来制备起始烷基苯和氟化氢 - 三氟化硼催化剂的络合物的溶液的步骤和甲酰化步骤, 在其苯环上具有至少一个具有两个或更多个碳原子的伯烷基用作起始烷基苯。 络合物溶液的制备在含有至少一个叔碳原子但不含有季碳原子的含有6至10个碳原子的脂族或脂环族饱和烃的存在下进行。 通过组合使用特定的烷基苯和脂族或脂环族饱和烃,可以防止烷基苯的歧化,并以高产率生产烷基苯甲醛。

    Production method of alkylbenzaldehydes
    2.
    发明申请
    Production method of alkylbenzaldehydes 有权
    烷基苯甲醛的生产方法

    公开(公告)号:US20050085670A1

    公开(公告)日:2005-04-21

    申请号:US10963572

    申请日:2004-10-14

    CPC分类号: C07C45/49 C07C47/542

    摘要: In the production of an alkylbenzaldehyde by a method comprising a step of preparing a solution of complex of a starting alkylbenzene and a hydrogen fluoride-boron trifluoride catalyst and a step of formylation by bringing the solution of complex into contact with carbon monoxide, an alkylbenzene having at least one primary alkyl group having two or more carbon atoms on its benzene ring is used as the starting alkylbenzene. The preparation of the solution of complex is carried out in the presence of an aliphatic or alicyclic saturated hydrocarbon having 6 to 10 carbon atoms which contains at least one tertiary carbon atom but contains no quaternary carbon atom. By the combined use of the specific alkylbenzene and the aliphatic or alicyclic saturated hydrocarbon, the disproportionation of the alkylbenzene is prevented and the alkylbenzaldehyde is produced at high yields.

    摘要翻译: 在通过包括以下步骤的方法制备烷基苯甲醛时,所述方法包括通过使配合物溶液与一氧化碳接触来制备起始烷基苯和氟化氢 - 三氟化硼催化剂的络合物的溶液的步骤和甲酰化步骤, 在其苯环上具有至少一个具有两个或更多个碳原子的伯烷基用作起始烷基苯。 络合物溶液的制备在含有至少一个叔碳原子但不含有季碳原子的含有6至10个碳原子的脂族或脂环族饱和烃的存在下进行。 通过组合使用特定的烷基苯和脂族或脂环族饱和烃,可以防止烷基苯的歧化,并以高产率生产烷基苯甲醛。

    Polyol ester based-lubricant
    4.
    发明授权
    Polyol ester based-lubricant 失效
    多元醇酯基润滑剂

    公开(公告)号:US5716916A

    公开(公告)日:1998-02-10

    申请号:US835881

    申请日:1997-04-08

    摘要: A polyol ester-based lubricant comprising a polyol ester (A) and a polyol ester (B); the polyol ester (A) comprising an ester of a neopentyl polyol and an acid residue of carbon number of 6-17, in which alpha-carbon in the acid residue of the polyol ester is tertiarily branched, and when alkyl groups having 4 or more carbon atoms are bonded to the alpha-carbon, the alkyl groups are branched, and the polyol ester (B) comprising an ester of a neopentyl polyol and an acid residue of carbon number of 6-17, in which alpha-carbon in the acid residue of the polyol ester is secondarily or tertiarily branched and alkyl groups bonded to the alpha-carbon are straight is provided. This polyol ester-based lubricant has high performance, as demonstrated by high compatibility with substitute fluorocarbons in a kinematic viscosity range of 28 to 40 cst at 40.degree. C., excellent hydrolysis resistance, and a low pour point.

    摘要翻译: 包含多元醇酯(A)和多元醇酯(B)的多元醇酯基润滑剂; 包含新戊基多元醇的酯和碳原子数为6-17的酸残基的多元醇酯(A),其中多元醇酯的酸残基中的α-碳是三分支的,当烷基具有4个或更多个 碳原子与α-碳键合,烷基是支链的,并且包含新戊基多元醇的酯和碳原子数为6-17的酸残基的多元醇酯(B),其中酸中的α-碳 提供多元醇酯的残基是二次或三次支化的,并且与α-碳键合的烷基是直链的。 这种多元醇酯基润滑剂具有高性能,如在40℃下运动粘度范围为28至40cst,优异的耐水解性和低倾点的替代碳氟化合物的高相容性所证明的。

    Process for the production of esters
    5.
    发明授权
    Process for the production of esters 失效
    生产酯的方法

    公开(公告)号:US5463095A

    公开(公告)日:1995-10-31

    申请号:US260237

    申请日:1994-06-14

    IPC分类号: C07C51/58 C07C67/38 C07C51/15

    CPC分类号: C07C67/38 C07C51/58

    摘要: A process for the production of esters, comprising allowing an olefin, carbon monoxide and an alcohol to react in the presence of hydrogen fluoride, in which the esters can be produced at high yields at a low temperature for a short period of time, the esters can be easily separated from a reaction solution, hydrogen fluoride can be recycled, the esters can be produced at a low cost, a mixture of esters can be easily produced, the kinetic viscosity of the mixture of the esters can be easily adjusted and the coloring of, and an increase in the viscosity of, the esters can be prevented.

    摘要翻译: 一种生产酯的方法,包括使烯烃,一氧化碳和醇在氟化氢存在下反应,其中酯可以在低温下以高产率在短时间内生产,酯 可以容易地从反应溶液中分离,氟化氢可以循环使用,可以低成本生产酯,可以容易地生产酯的混合物,可以容易地调节酯的混合物的动力粘度,并且着色 并且可以防止酯的粘度增加。

    Process for producing aromatic acylation product
    6.
    发明授权
    Process for producing aromatic acylation product 失效
    芳香族酰化产物的制备方法

    公开(公告)号:US5208383A

    公开(公告)日:1993-05-04

    申请号:US825275

    申请日:1992-01-24

    IPC分类号: C07C45/46

    CPC分类号: C07C45/46

    摘要: A process for producing an aromatic acylation product from an aromatic compound, an olefin and carbon monoxide, which comprises the steps of:(a) reacting an olefin with carbon monoxide in the presence of hydrogen fluoride and boron trifluoride at a pressure of not more than 100 kg/cm.sup.2 G to prepare an acyl fluoride synthesis solution,(b) allowing the acyl fluoride synthesis solution to absorb boron trifluoride to form a complex of acyl fluoride and boron trifluoride,(c) subjecting an aromatic compound to an acylation reaction with a reaction mixture containing the complex of acyl fluoride and boron trifluoride, obtained in the step (b), to form a complex of boron trifluoride, hydrogen fluoride and an aromatic acylation compound, provided that the amount of the acyl fluoride in the complex of acyl fluoride and boron trifluoride is less than 1 mole per mole of the aromatic compound, and(d) separating the aromatic acylation compound from the complex formed in the step (c) by heating a reaction mixture obtained in the step (c).

    摘要翻译: 一种由芳族化合物,烯烃和一氧化碳生产芳族酰化产物的方法,包括以下步骤:(a)在氟化氢和三氟化硼的存在下,使烯烃与一氧化碳在不大于 100kg / cm2G以制备酰基氟合成溶液,(b)使酰基氟合成溶液吸收三氟化硼以形成酰氟和三氟化硼的络合物,(c)使芳族化合物与反应进行酰化反应 含有步骤(b)中得到的酰氟和三氟化硼的络合物的混合物,形成三氟化硼,氟化氢和芳族酰化化合物的络合物,条件是酰基氟络合物中的酰基氟和 三氟化硼每摩尔芳族化合物少于1摩尔,和(d)通过加热芳族酰化化合物与步骤(c)中形成的络合物分离芳族酰化化合物 在步骤(c)中获得的载体混合物。

    Process for manufacturing high-purity o-toluic acid
    7.
    发明授权
    Process for manufacturing high-purity o-toluic acid 失效
    制备高纯度邻甲苯甲酸的方法

    公开(公告)号:US5011987A

    公开(公告)日:1991-04-30

    申请号:US523868

    申请日:1990-05-15

    CPC分类号: C07C51/44

    摘要: A process for manufacturing high-purity o-toluic acid from a partial oxidation product of o-xylene is disclosed. o-Toluic acid is widely used as a raw material for agricultural chemicals, medicines, polymerization initiators, and the like. Depending on its use, 99% by weight or more purity is demanded for o-toluic acid. Hitherto, o-toluic acid having purity of higher than 99% by weight could not be obtained by fractionation, and purification by fractional crystallization was used. Fractional crystallization is, however, and expensive operation and not only gives a low yield of product but also results a large amount of waste water. The process disclosed herein gives an economical, commercial way to obtain high purity o-toluic acid. In summary, a process for the manufacture of high purity o-toluic acid which comprises: subjecting an oxidation product of o-xylene to distillation to remove therefrom low boiling point components such as unreacted o-xylene and benzoic acid, and high boiling point components, of which the major component is o-methylbenzyl o-toluate, thus obtaining crude o-toluic acid, treating said crude o-toluic acid with ammonia of an amount 1 to 1.2 mol equivalent of o-phthalic acid contained in said crude o-toluic acid, and subjecting the product thus treated to distillation is disclosed.

    Stabilized hydroxypivalaldehyde
    8.
    发明授权
    Stabilized hydroxypivalaldehyde 有权
    稳定的羟基新戊醛

    公开(公告)号:US07126030B2

    公开(公告)日:2006-10-24

    申请号:US11063606

    申请日:2005-02-24

    IPC分类号: C07C45/00 C07C47/00

    CPC分类号: C07C45/75 C07C45/81 C07C47/19

    摘要: In the method of the invention, hydroxypivalaldehyde (3-hydroxy-2,2-dimethylpropanal) and/or its dimer is stored under solid conditions containing an amount of water. By storing such solid conditions, hydroxypivalaldehyde and/or its dimer is stored for a long period of time without reducing its purity.

    摘要翻译: 在本发明的方法中,将羟基新戊醛(3-羟基-2,2-二甲基丙醛)和/或其二聚体在含有一定量的水的固体条件下储存。 通过储存这种固体条件,羟基新戊醛和/或其二聚体长时间储存​​而不降低其纯度。