Method for producing guerbet alcohols
    3.
    发明授权
    Method for producing guerbet alcohols 有权
    瓜尔特伯醇的制备方法

    公开(公告)号:US06911567B2

    公开(公告)日:2005-06-28

    申请号:US10380978

    申请日:2001-09-11

    摘要: Guerbet alcohols of the formula (I) CH3(CH2)nCHR1CH2OH  (I) wherein R1 is a linear alkyl radical having n-1 carbon atoms and n is a number of from 5 to 11 are produced by a process which comprises contacting a fatty alcohol of the formula (II) R2OH  (II) wherein R2 is a linear alkyl radical having from 6 to 12 carbon atoms with a carbonyl compound and an alkall metal hydroxide. The use of heavy metal catalysts usually associated with the production of Guerbet alcohols is avoided thereby reducing the potential for heavy metal pollution of the environment.

    摘要翻译: (I)的格伯特醇<?in-line-formula description =“In-line Formulas”end =“lead”?> CH 3(CH 2) α-in-line-formula description =“In-line Formulas”end =“tail” 其中R 1是具有n-1个碳原子的直链烷基,n是5-11的数是通过包括使式(II)的脂肪醇与式 <?in-line-formula description =“In-line Formulas”end =“lead”?> R 2 OH(II)<?in-line-formula description =“In-line Formulas” 其中R 2是具有6至12个碳原子的直链烷基,其中羰基化合物和碱金属氢氧化物。 通常与生产Guerbet醇有关的重金属催化剂的使用被避免,从而降低重金属污染环境的可能性。

    Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor
    5.
    发明申请
    Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor 有权
    通过用上游反应器进行非均相催化的反应性精馏生产直链或支链脂肪酸酯的方法

    公开(公告)号:US20060052619A1

    公开(公告)日:2006-03-09

    申请号:US10537973

    申请日:2003-12-02

    IPC分类号: C07C69/02

    摘要: The disclosed invention relates to a countercurrent process for the continuous esterification of C1-22 (fatty) acids with C1-10 monoalkanols, C2-5 di- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor (1) and in a reaction column (3), characterized in that the reaction column (3) is preceded by the preliminary reactor (1) and a separation unit (2) for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit (2) to displace the reaction equilibrium before the reaction column (3). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column (3) in order to increase the vapour load in the lower part of the reaction column.

    摘要翻译: 所公开的本发明涉及用C 1〜12个单烷醇(C 2-5)连续酯化C 1-22(脂肪酸)的逆流方法, 在反应器(1)和反应塔(3)中的非均相催化剂存在下,液相中的二 - 或三烷醇或其混合物或其混合物,其特征在于反应塔(3)之前是预备 反应器(1)和分离单元(2),用于降低反应混合物的粘度并通过分离单元(2)从体系中除去反应水以置换反应塔(3)之前的反应平衡, 。 本发明的另一方面涉及在反应塔(3)的最下面的塔板上加入氮气,以增加反应塔下部的蒸气负荷。

    Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor
    6.
    发明授权
    Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor 有权
    通过用上游反应器进行非均相催化的反应性精馏生产直链或支链脂肪酸酯的方法

    公开(公告)号:US07579493B2

    公开(公告)日:2009-08-25

    申请号:US10537973

    申请日:2003-12-02

    IPC分类号: C07C51/43 C07C69/02

    摘要: The disclosed invention relates to a countercurrent process for the continuous esterification of C1-22 (fatty) acids with C1-10 monoalkanols, C2-5 di- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor (1) and in a reaction column (3), characterized in that the reaction column (3) is preceded by the preliminary reactor (1) and a separation unit (2) for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit (2) to displace the reaction equilibrium before the reaction column (3). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column (3) in order to increase the vapor load in the lower part of the reaction column.

    摘要翻译: 所公开的发明涉及在预反应器中存在非均相催化剂的情况下,在液相中连续酯化C1-22(脂肪酸)与C 1-10单链烷醇,C 2-5 - 或三烷醇或其混合物的逆流方法 (1)和反应塔(3)中,其特征在于反应塔(3)之前是预反应器(1)和分离单元(2),用于降低反应混合物的粘度和除去 来自系统的经由分离单元(2)的反应水以置换反应塔(3)之前的反应平衡。 本发明的另一方面涉及在反应塔(3)的最下面的塔板上加入氮气,以增加反应塔下部的蒸气负荷。

    Process for the production of dialkyl carbonates
    7.
    发明授权
    Process for the production of dialkyl carbonates 失效
    制备碳酸二烷基酯的方法

    公开(公告)号:US5986125A

    公开(公告)日:1999-11-16

    申请号:US11682

    申请日:1998-03-04

    CPC分类号: C07C68/06

    摘要: The invention relates to a process for the production of higher dialkyl carbonates corresponding to formula (I):(R.sup.1 O)(R.sup.2 O)CO (I)which R.sup.1 and R.sup.2 may be the same or different and represent a linear or branched, saturated or unsaturated and/or alkoxylated alkyl group, by transesterification of lower dialkyl carbonates with higher alcohols in the presence of a catalyst. The process is characterized in that the transesterification is carried out in a column equipped with packings or internals through which the reactants flow in countercurrent to one another. Predominantly symmetrical dialkyl carbonates are obtained.

    摘要翻译: PCT No.PCT / EP97 / 02891 Sec。 371日期:1998年3月4日 102(e)1998年3月4日PCT 1997年6月4日PCT公布。 公开号WO97 / 47583 日期:1997年12月18日本发明涉及一种制备相应于式(I):(R1O)(R2O)CO(Ⅰ)的较高级二烷基碳酸酯的方法,其中R 1和R 2可以相同或不同,表示直链或 支化的,饱和的或不饱和的和/或烷氧基化的烷基,通过低级碳酸二烷基酯与高级醇在催化剂存在下的酯交换反应。 该方法的特征在于酯交换在装备有填料或内部物质的塔中进行,反应物通过该填料或内部物质彼此逆流流动。 得到主要对称的碳酸二烷基酯。