Method for distilling mixtures containing butanediol
    1.
    发明授权
    Method for distilling mixtures containing butanediol 有权
    蒸馏含丁二醇的混合物的方法

    公开(公告)号:US06387224B1

    公开(公告)日:2002-05-14

    申请号:US09623109

    申请日:2000-08-29

    IPC分类号: B01D334

    摘要: A process for the separation by distillation of a mixture of 1,4-butanediol and at least one 4-hydroxybutyraldehyde, its cyclic hemiacetal and its cyclic full acetals with at least one further alcohol by carrying out the distillation in the presence of an alkaline compound. The mixture to be separated preferably contains a cyclic full acetal of 4-hydroxybutyraldehyde with a further alcohol which has a lower boiling point than butanediol and also the further alcohol in free form. The process is particularly suitable for the separation by distillation of mixtures formed in the hydrogenation of maleic acid derivatives.

    摘要翻译: 通过在碱性化合物的存在下进行蒸馏来通过蒸馏分离1,4-丁二醇和至少一种4-羟基丁醛的混合物的方法,其环状半缩醛和其环状全缩醛与至少一种其它醇进行蒸馏 。 要分离的混合物优选含有4-羟基丁醛的环状全缩醛,另外具有低于丁二醇的沸点的醇,还有另外的游离形式的醇。 该方法特别适用于通过蒸馏分离在马来酸衍生物的氢化中形成的混合物。

    Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters
    2.
    发明授权
    Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters 失效
    环戊酮和环戊烯-1-羧酸及其酯的制备方法

    公开(公告)号:US06316659B1

    公开(公告)日:2001-11-13

    申请号:US09508008

    申请日:2000-03-07

    IPC分类号: C07C6974

    摘要: A process for preparing cyclopentanone and cyclopentene-1-carboxylic acid or an ester thereof of the formula I where R is hydrogen or an aliphatic radical having 1-6 carbon atoms or a cycloaliphatic, araliphatic or aromatic radical having 6-12 carbon atoms comprises heating a compound of the formula II X—(CH2)4—COOR  II where X is formyl or hydroxymethyl and R is defined as above, and/or a compound which is converted into a compound of the formula II by reaction with water or alcohols ROH under the reaction conditions to from 200 to 450° C. in the gas or liquid phase in the presence of a heterogeneous oxidic catalyst.

    摘要翻译: 制备式I的环戊酮和环戊烯-1-羧酸或其酯的方法,其中R是氢或具有1-6个碳原子的脂族基团或具有6-12个碳原子的脂环族,芳脂族或芳族基团包括加热 式II的化合物,其中X是甲酰基或羟甲基,R如上定义,和/或在反应条件下与水或醇ROH反应转化为式II化合物的化合物为200-450℃ 在气相或液相中存在非均相氧化催化剂。

    Preparation of tetrahydrofuran
    3.
    发明授权
    Preparation of tetrahydrofuran 有权
    四氢呋喃的制备

    公开(公告)号:US06316640B1

    公开(公告)日:2001-11-13

    申请号:US09396356

    申请日:1999-09-15

    IPC分类号: C07D30708

    CPC分类号: C07D307/08 Y02P20/582

    摘要: In a process for preparing THF (tetrahydrofuran) by reaction of a 1,4-butanediol-containing reaction mixture over an acid catalyst, the reaction mixture comprises further alcohols different from 1,4-butanediol and is essentially free of water.

    摘要翻译: 在通过在酸催化剂上通过含1,4-丁二醇的反应混合物反应制备THF(四氢呋喃)的方法中,反应混合物包含与1,4-丁二醇不同的基本上不含水的其它醇。

    Method for producing 1,6-hexanediol
    4.
    发明授权
    Method for producing 1,6-hexanediol 有权
    1,6-己二醇的制备方法

    公开(公告)号:US06407294B1

    公开(公告)日:2002-06-18

    申请号:US09529789

    申请日:2000-04-20

    IPC分类号: C07C2700

    摘要: A process for producing 1,6-hexanediol by hydrogenation of adipic esters and/or 6-hydroxycaproic esters in the gas phase at elevated temperature and elevated pressure in the presence of chromium-free catalysts comprises hydrogenating a) over a catalyst comprising copper, manganese and aluminum as essential constituents or over Raney copper, b) at a temperature of from 150 to 230° C. and a pressure of from 10 to 70 bar, c) at a molar ratio of hydrogen to ester to be hydrogenated within the range from 150:1 to 300:1, and d) at a catalyst space velocity of from 0.01 to 0.3 kg of C6 ester per liter of catalyst per hour.

    摘要翻译: 在无铬催化剂存在下,在升高的温度和升高的压力下,气相中己二酸酯和/或6-羟基己酸酯的氢化制备1,6-己二醇的方法包括在包含铜,锰和 铝作为必需组分或在阮内铜上,b)在150-230℃的温度和10至70巴的压力下,c)以氢化至酯的摩尔比在150℃的范围内 :1至300:1,和d),催化剂空速为每升催化剂每小时0.01至0.3kg的C6酯。

    Method for producing aliphatic alcohols
    7.
    发明授权
    Method for producing aliphatic alcohols 有权
    生产脂肪醇的方法

    公开(公告)号:US06204417B1

    公开(公告)日:2001-03-20

    申请号:US09423876

    申请日:1999-11-15

    IPC分类号: C07C3118

    摘要: In a process for preparing aliphatic alcohols by hydrogenating aliphatic carboxylic acids or anhydrides or esters thereof or lactones in the presence of a catalyst comprising Pt and Re, in the form of the metal or an oxide in each case, the catalyst further comprises at least one further element from the groups 5 to 12 and 14 and the lanthanides of the Periodic Table of the Elements in the form of the metal or an oxide.

    摘要翻译: 在通过在包含Pt和Re的催化剂的存在下,在每种情况下以金属或氧化物的形式加氢脂族羧酸或其酸酐或其酯或内酯的方法中,催化剂还包含至少一种 第5〜12和14族的元素,元素周期表的镧系元素为金属或氧化物。

    Process for preparing tetrahydrofuran from dialkoxybutenes
    8.
    发明授权
    Process for preparing tetrahydrofuran from dialkoxybutenes 失效
    从二烷氧基丁烯制备四氢呋喃的方法

    公开(公告)号:US06169189A

    公开(公告)日:2001-01-02

    申请号:US09180482

    申请日:1998-11-12

    IPC分类号: C07D30708

    摘要: A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or II RO—CH2—CH═CH—CH2—OR  I RO—CH2—CH2═CH—CH2—OR  II, where the R radicals can be identical or different and are C1-C15-alkyl or cycloalkyl radicals, C6-C12-aryl radicals or C7-C15-aralkyl radicals, with water and hydrogen at from 20 to 300° C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.

    摘要翻译: 一种制备四氢呋喃的方法,其包括使式I和/或II的1,4-丁烯二醇二醚反应,其中R基团可以相同或不同,为C 1 -C 15 - 烷基或环烷基,C 6 -C 12 - 芳基或C 7 -C 15 - 芳烷基,其中水和氢在20-300℃,在1-300巴下,在催化剂或催化剂组合的存在下,其包含能够氢化并具有酸性或碱性中心的组分,以及新颖的 描述了通过复分解制备式I的1,4-丁二醇二醚的方法。

    Preparation of .gamma.-butyrolactone
    10.
    发明授权
    Preparation of .gamma.-butyrolactone 失效
    γ-丁内酯的制备

    公开(公告)号:US5646307A

    公开(公告)日:1997-07-08

    申请号:US640879

    申请日:1996-05-16

    CPC分类号: C07D315/00 Y02P20/582

    摘要: A process for the preparation of .gamma.-butyrolactone, in which 2,5-dihydrofuran or 2,3-dihydrofuran or a mixture of these two dihydrofurans is caused to react in the gas phase in the presence of water and in the presence or absence of additional hydrogen at elevated temperature over a hydrogenating catalyst.

    摘要翻译: PCT No.PCT / EP94 / 03683第 371日期:1996年5月16日 102(e)日期1996年5月16日PCT 1994年11月9日PCT公布。 WO95 / 14010 PCT出版物 日期1995年5月26日制备γ-丁内酯的方法,其中使2,5,5-二氢呋喃或2,3-二氢呋喃或这两种二氢呋喃的混合物在气相中在水的存在下反应, 在升高的温度下在氢化催化剂上存在或不存在另外的氢。