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    • 52. 发明授权
    • Phthalic acid alkyl ester mixtures with controlled viscosity
    • 邻苯二甲酸烷基酯混合物具有可控的粘度
    • US07323586B2
    • 2008-01-29
    • US10487061
    • 2002-09-20
    • Klaus-Diether WieseMichael GrassWilfried Bueschken
    • Klaus-Diether WieseMichael GrassWilfried Bueschken
    • C07C67/08C07C67/10C07C69/76C09K3/00
    • C07C69/80C08K5/12C10M105/36C10M129/72C10M2207/285C10M2207/2855C10N2240/08C10N2270/00
    • Mixtures of isomeric dialkyl phthalates that have a desired viscosity are prepared by esterifying phthalic acid or phthalic anhydride with a mixture of isomeric alkyl alcohols having a certain carbon number of carbon atoms, where the molar fraction of each alkyl alcohol isomer of the isomeric alcohol mixture is determined, and where the viscosity parameter of each alkyl alcohol isomer of the alcohol mixture, which, upon reacting with phthalic acid or phthalic anhydride, results in a mixed isomer dialkyl phalate ester product having a specific desired viscosity, is determined in accordance with formula (I): ln(η)=Σχi*ln(ηi)   (I) where η=the calculated viscosity of a dialkyl phthalate mixture, χi=the molar fraction of an isomerically pure alcohol (i), and ηi=the viscosity parameter of isomerically pure alcohol (i).
    • 具有所需粘度的异构二烷基邻苯二甲酸酯的混合物通过用具有一定碳原子数的异构烷基醇的混合物酯化邻苯二甲酸或邻苯二甲酸酐来制备,其中异构醇混合物的各烷基醇异构体的摩尔分数为 并且其中与邻苯二甲酸或邻苯二甲酸酐反应产生具有特定所需粘度的混合异构体癸酸二烷基酯产物的醇混合物的每种烷基醇异构体的粘度参数根据式( I):<?in-line-formula description =“In-line Formulas”end =“lead”?> ln(eta)= Sigmachi >)(I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中eta =邻苯二甲酸二烷基酯混合物的计算粘度, 异构纯的醇(i)的摩尔分数,和异构纯的醇钠的粘度参数 (i)。
    • 57. 发明授权
    • Process for the catalytic selective hydrogenation of polyunsaturated
organic substances
    • 多不饱和有机物催化选择性氢化方法
    • US5831135A
    • 1998-11-03
    • US944433
    • 1997-10-06
    • Wilfried BueschkenJuergen Hummel
    • Wilfried BueschkenJuergen Hummel
    • B01J19/18B01J19/24C07B35/02C07B61/00C07C5/05C07C5/08C07C11/02C07C11/12C07C11/21C07C45/62C07C49/04C07C253/30C07C255/02C07C29/14
    • C07C45/62B01J19/1862B01J19/245B01J19/2465C07B35/02C07C253/30B01J2219/00006B01J2219/0011B01J2219/00182
    • The present invention relates to a process for the catalytic selective hydrogenation of a polyunsaturated organic compound, wherein the hydrogenation is carried out in a plurality of two or more series-connected loops, wherein each loop involves the use of one reactor, which comprises: (a) feeding the polyunsaturated organic compound and hydrogen to an upper part of a reactor to catalytically hydrogenate said the polyunsaturated organic compound to produce a hydrogenation product, (b) recycling a portion of said hydrogenation product back into said upper part of said reactor, (c) feeding the remainder of said hydrogenation product from said reactor to an upper part of a subsequent reactor wherein the polyunsaturated organic compound is catalytically hydrogenated to produce a subsequent hydrogenation product, and wherein a portion of said subsequent hydrogenation product has been recycled and is fed with said remainder of said hydrogenation product to said upper part of said subsequent reactor, (d) repeating step (c) until the subsequent reactor is the last reactor, (e) recovering the remainder of said subsequent hydrogenation product from said last reactor, and (f) obtaining the desired compound(s) from the product of step (e).
    • 本发明涉及多不饱和有机化合物的催化选择性氢化方法,其中氢化在多个两个或多个串联连接的环中进行,其中每个环包括使用一个反应器,其包括:( a)将多不饱和有机化合物和氢气供给到反应器的上部以催化氢化所述多不饱和有机化合物以产生氢化产物,(b)将一部分所述氢化产物再循环回所述反应器的上部( c)将剩余的所述氢化产物从所述反应器进料到后续反应器的上部,其中所述多不饱和有机化合物被催化氢化以产生随后的氢化产物,并且其中所述后续氢化产物的一部分已经被再循环并进料 所述剩余的所述氢化产物存在于所述后续的所述上部 反应器,(d)重复步骤(c),直到后续反应器为最后一个反应器,(e)从所述最后一个反应器中回收剩余的所述后续氢化产物,和(f)从下列反应产物中获得所需化合物: 步骤(e)。
    • 58. 发明授权
    • Process for the catalytic selective hydrogenation of polyunsaturated
organic substances
    • 多不饱和有机物催化选择性氢化方法
    • US5675045A
    • 1997-10-07
    • US668357
    • 1996-06-26
    • Wilfried BueschkenJuergen Hummel
    • Wilfried BueschkenJuergen Hummel
    • B01J19/18B01J19/24C07B35/02C07B61/00C07C5/05C07C5/08C07C11/02C07C11/12C07C11/21C07C45/62C07C49/04C07C253/30C07C255/02C07C29/14
    • C07C45/62B01J19/1862B01J19/245B01J19/2465C07B35/02C07C253/30B01J2219/00006B01J2219/0011B01J2219/00182
    • The present invention relates to a process for the catalytic selective hydrogenation of a polyunsaturated organic compound, wherein the hydrogenation is carried out in a plurality of two or more series-connected loops, wherein each loop involves the use of one reactor, which comprises: (a) feeding the polyunsaturated organic compound and hydrogen to an upper part of a reactor to catalytically hydrogenate said the polyunsaturated organic compound to produce a hydrogenation product, (b) recycling a portion of said hydrogenation product back into said upper part of said reactor, (c) feeding the remainder of said hydrogenation product from said reactor to an upper part of a subsequent reactor wherein the polyunsaturated organic compound is catalytically hydrogenated to produce a subsequent hydrogenation product, and wherein a portion of said subsequent hydrogenation product has been recycled and is fed with said remainder of said hydrogenation product to said upper part of said subsequent reactor, (d) repeating step (c) until the subsequent reactor is the last reactor, (e) recovering the remainder of said subsequent hydrogenation product from said last reactor, and (f) obtaining the desired compound(s) from the product of step (e).
    • 本发明涉及多不饱和有机化合物的催化选择性氢化方法,其中氢化在多个两个或多个串联连接的环中进行,其中每个环包括使用一个反应器,其包括:( a)将多不饱和有机化合物和氢气供给到反应器的上部以催化氢化所述多不饱和有机化合物以产生氢化产物,(b)将一部分所述氢化产物再循环回所述反应器的上部( c)将剩余的所述氢化产物从所述反应器进料到后续反应器的上部,其中所述多不饱和有机化合物被催化氢化以产生随后的氢化产物,并且其中所述后续氢化产物的一部分已经被再循环并进料 所述剩余的所述氢化产物存在于所述后续的所述上部 反应器,(d)重复步骤(c),直到后续反应器为最后一个反应器,(e)从所述最后一个反应器中回收剩余的所述后续氢化产物,和(f)从下列反应产物中获得所需化合物: 步骤(e)。