利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

166 条记录 (耗时 0.023 秒)

    Process for preparing 1,6 hexanediol with a level of purity over 99%
    3.
    发明授权
    Process for preparing 1,6 hexanediol with a level of purity over 99% 有权
    制备纯度超过99％的1,6己二​​醇的方法

    公开(公告)号：US6008418A

    公开(公告)日：1999-12-28

    申请号：US125976

    申请日：1998-08-28

    申请人： Karl Gerhard Baur ,  Rolf Fischer ,  Rolf Pinkos ,  Frank Stein ,  Harald Rust ,  Boris Breitscheidel

    发明人： Karl Gerhard Baur ,  Rolf Fischer ,  Rolf Pinkos ,  Frank Stein ,  Harald Rust ,  Boris Breitscheidel

    IPC分类号： B01J23/80 ,  B01J23/889 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20

    CPC分类号： C07C29/149

    摘要： 1,6-Hexanediol is prepared from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as a by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol by water extraction of the reaction mixture, by esterification of the acids and hydrogenation whereina) the monocarboxylic and dicarboxylic acids present in the aqueous dicarboxylic acid mixture are reacted with a low molecular weight alcohol to give the corresponding carboxylic esters,b) the resulting esterification mixture is freed of excess alcohol and low boilers in a first distillation stage,c) the bottoms are fractionated in a second distillation stage to give an ester fraction essentially free of 1,4-cyclohexanediols and a fraction comprising at least the major part of the 1,4-cyclohexanediols,d) the ester fraction essentially free of 1,4-cyclohexanediols is catalytically hydrogenated ande) in a pure distillation stage, 1,6-hexanediol is isolated from the hydrogenation product in a manner known per se.

    摘要翻译： PCT No.PCT / EP97 / 00980 Sec。 371日期1998年8月28日 102（e）1998年8月28日PCT PCT 1997年2月28日PCT公布。 公开号WO97 / 31882 日期1991年9月4日6,6-己二醇由包含己二酸，6-羟基己酸和少量1,4-环己二醇的羧酸混合物制备，其作为副产物在环己烷氧化成环己酮/ 环己醇通过水提取反应混合物，通过酸的酯化和氢化，其中存在于二羧酸水溶液混合物中的单羧酸和二羧酸与低分子量醇反应得到相应的羧酸酯，b）得到的 酯化混合物在第一蒸馏阶段中不含过量的醇和低沸点，c）在第二蒸馏阶段对塔底物进行分馏，得到基本上不含1,4-环己烷二醇的酯馏分和至少包含至少大部分 1,4-环己烷二醇，d）基本上不含1,4-环己烷二醇的酯馏分是催化氢化的，e）在纯蒸馏阶段， 以本身已知的方式从加氢产物中分离出1,6-己二醇。

    Method for producing 1,6-hexanediol
    5.
    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

    申请人： Boris Breitscheidel ,  Rolf Pinkos ,  Frank Stein ,  Shelue Liang ,  Rolf Hartmuth Fischer

    发明人： Boris Breitscheidel ,  Rolf Pinkos ,  Frank Stein ,  Shelue Liang ,  Rolf Hartmuth Fischer

    IPC分类号： C07C2700

    CPC分类号： C07C29/149 ,  C07C2601/08 ,  C07C35/06 ,  C07C31/135 ,  C07C31/20

    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 hexanediol
    6.
    发明授权
    Method for producing hexanediol 失效
    己二醇的制备方法

    公开(公告)号：US06313358B1

    公开(公告)日：2001-11-06

    申请号：US09673125

    申请日：2000-10-11

    申请人： Boris Breitscheidel ,  Rolf Pinkos ,  Frank Stein

    发明人： Boris Breitscheidel ,  Rolf Pinkos ,  Frank Stein

    IPC分类号： C07C2700

    CPC分类号： B01J23/72 ,  C07C29/149 ,  C07C67/60 ,  C07C2601/14 ,  C07C69/44 ,  C07C31/20 ,  C07C35/14

    摘要： Hexanediol is prepared by hydrogenating dialkyl adipates or mixtures which contain a dialkyl adipate as the essential component and organic halogen compounds as impurities, by a process in which, before the hydrogenation, the dialkyl adipates or the mixtures containing dialkyl adipates are passed at from 50 to 250° C. and from 1 to 100 bar over copper catalysts which have a copper content, calculated as CuO, of from 0.5 to 80% by weight, a surface area of from 5 to 1500 m2/g, a porosity of from 0.05 to 1.5 cm3/g and a copper surface area of from 0.1 to 20 m2/g, in order to remove the organic halogen compounds.

    摘要翻译： 通过以下方法将含己二酸二烷基酯的二烷基己二酸酯或其混合物加氢制备，其中氢化前，己二酸二烷基酯或含有己二酸二烷基酯的混合物在50至 250℃和1至100巴，铜铜催化剂的铜含量（按CuO计）为0.5至80重量％，表面积为5至1500平方米/克，孔隙率为0.05至 1.5cm 3 / g，铜表面积为0.1〜20m 2 / g，以除去有机卤素化合物。

    Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores
    8.
    发明授权
    Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores 有权

    公开(公告)号：US06284917B1

    公开(公告)日：2001-09-04

    申请号：US09581843

    申请日：2000-06-19

    申请人： Melanie Brunner ,  Arnd Böttcher ,  Boris Breitscheidel ,  Klaus Halbritter ,  Jochem Henkelmann ,  Lucien Thil ,  Rolf Pinkos

    发明人： Melanie Brunner ,  Arnd Böttcher ,  Boris Breitscheidel ,  Klaus Halbritter ,  Jochem Henkelmann ,  Lucien Thil ,  Rolf Pinkos

    IPC分类号： C07C6974

    CPC分类号： C08K5/12 ,  C07C51/36 ,  C07C67/303 ,  C07C69/75 ,  C07C2601/14 ,  C07C61/09

    摘要： A process for hydrogenating a benzenepolycarboxylic acid or a derivative thereof or a mixture of two or more thereof by bringing the benzenepolycarboxylic acid or the derivative thereof or the mixture of two or more thereof into contact with a hydrogen-containing gas is carried out in the presence of a catalyst which comprises as active metal at least one metal of transition group VIII of the Periodic Table alone or together with at least one metal of transition group I or VII of the periodic table applied to a support which contains macropores with the proviso that if dimethyl terephthalate is hydrogenated, the hydrogenation using a catalyst which comprises as active metal ruthenium either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table applied to a support, where the support has a mean pore diameter of at least 50 nm and a BET surface area of at most 30 m2/g and the amount of the active metal is from 0.01 to 30% by weight, based on the total weight of the catalyst, and the ratio of the surface areas of the active metal and the catalyst support is less than 0.05, and/or a catalyst which comprises as active metal ruthenium either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, applied to a support, where from 10 to 50% of the pore volume of the support is formed by macropores having a pore diameter in the range from 50 nm to 10,000 nm and from 50 to 90% of the pore volume of the support is formed by mesopores having a pore diameter in the range from 2 to 50 nm, where the sum of the pore volumes adds up to 100%, is excluded, and novel hydrogenation products, obtainable by hydrogenating benzenepolycarboxylic acid (derivatives) as well as their use as plasticizers in plastics.

    Method for producing aliphatic alcohols
    10.
    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

    申请人： Rolf Fischer ,  Rolf Pinkos ,  Joachim Wulff-Döring

    发明人： Rolf Fischer ,  Rolf Pinkos ,  Joachim Wulff-Döring

    IPC分类号： C07C3118

    CPC分类号： C07C29/149 ,  B01J23/56 ,  B01J23/6567 ,  B01J23/89 ,  C07C31/12 ,  C07C31/207 ,  C07C31/125 ,  C07C31/20

    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。