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    METHOD FOR REMOVING FORMIC ACID FROM AQUEOUS SOLUTIONS
    1.
    发明申请
    METHOD FOR REMOVING FORMIC ACID FROM AQUEOUS SOLUTIONS 审中-公开
    程序从水溶液中除去FORMIC

    公开(公告)号：WO02100502A3

    公开(公告)日：2003-03-13

    申请号：PCT/EP0206336

    申请日：2002-06-10

    Applicant: BASF AG ,  NOEBEL THOMAS

    Inventor： NOEBEL THOMAS

    IPC: C07C27/26 ,  B01D1/00 ,  C07C29/80 ,  C07C29/88 ,  C07C35/08 ,  C07C45/33 ,  C07C45/85 ,  C07C49/403 ,  C07C31/135 ,  C07C45/82

    CPC classification number: C07C45/33 ,  C07C29/80 ,  C07C29/88 ,  C07C45/85 ,  C07C2601/14 ,  C07C49/403 ,  C07C35/08

    Abstract: Disclosed is a method for at least partially removing formic acid from an aqueous solution containing formic acid, cyclohexanone and cyclohexanol, wherein the formic acid is decomposed on on a basic metal oxide made of metal from groups 2, 4, 5 12 and/or 14 or on a precious metal of groups 8 - 11 on an oxidic carrier in the form of a decomposition catalyst. Preferably, a method for further processing reaction products of cyclohexane oxidation is used, comprising the following steps: (i) extraction of the product gas mixture obtained during cyclohexane oxidation with an aqueous washing liquid, an aqueous solution containing carboxylic acid being obtained; (ii) separation by distillation of the aqueous solution containing carboxylic acid obtained in step (i) to form an aqueous solution containing formic acid, cyclohexanone and Cyclohexanol in addition to other organic minor components, and to form a carboxylic acid mixture, whereby the carboxylic acid mixture is further processed in the usual manner to form 1,6-hexandiol, (iii) the formic acid is at least partially removed from the aqueous solution containing formic acid, cyclohexanone and cyclohexanol obtained in step (ii) by decomposing the formic acid on a basic metal oxide made of metal from groups 2, 4, 5, 12 and/or 14 or on a precious metal of groups 8 - 11 on an oxidic or non-oxidic carrier in the form of a decomposition catalyst, (iv) the aqueous solution containing cyclohexanone and cyclohexanol obtained in step (iii) is further processed to form epsilon-caprolactam, or the aqueous solution containing cyclohexanone and cyclohexanol obtained in step (iii) is used as a washing fluid in step (i).

    Abstract translation: 一种用于从甲酸，环己酮和含环己醇的水溶液，至少部分地去除甲酸的方法，其中所述甲酸超过基2，4，5，12和/或14或以上8族的贵金属的金属的碱性金属氧化物 - 11 氧化载体作为分解催化剂分解。 用于环己烷氧化的反应产物的Weiterverabeitung的方法，优选使用该方法包括以下步骤：（i）中提取与水性洗涤液，其中得到一个含羧酸的水溶液，（ⅱ）分离的环己烷氧化产物气体混合物通过蒸馏得到 在步骤（i）中所得的羧酸在水溶液中的水溶液包含甲酸，环己酮和环己醇以及其它有机微量成分，和羧酸的混合物，其中所述羧酸混合物可以进一步以通常的方式进行处理，得到1,6-己二醇，（iii）至少部分地包含酸 从步骤除去甲酸（ⅱ）获得的，甲酸，环己酮，并通过在基2，4，5，12和/或14或以上基团8的贵金属的金属的碱性金属氧化物分解甲酸水溶液含有环己醇 含有上的氧化的或非氧化载体作为分解催化剂所获得的11，（ⅳ）Weiterverabeitung在步骤（iii），环己酮和水溶液ε-己内酰胺，或在步骤使用（ⅲ）中得到，环己酮和环己醇的含环己醇 - 在步骤（i）的水溶液作为Waschfüssigkeit。

    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL
    2.
    发明申请
    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL 审中-公开
    制备1,6-己二醇的方法

    公开(公告)号：WO2004026798A3

    公开(公告)日：2004-05-27

    申请号：PCT/EP0310288

    申请日：2003-09-16

    Applicant: BASF AG ,  STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  GALL MARTIN

    Inventor： STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  GALL MARTIN

    IPC: C07C29/149 ,  C07C31/20 ,  C07D313/04

    CPC classification number: C07C29/149 ,  C07C31/20

    Abstract: The invention relates to a method for producing 1,6-hexanediol and, optionally, e-caprolactone. According to the inventive method, the carboxylic acid obtained by oxidizing cyclohexane is esterified, the esterified mixture is separated into an ester fraction and a bottom fraction, and the ester fraction is hydrated so as to obtain 1,6-hexanediol. The bottom fraction is hydrolyzed with water and is returned into the esterified mixture. Hydrolyzing the bottom fraction with water allows the method to be simplified while preventing metal oxides from being emitted and being deposited on parts of the installation, a phenomenon that occurs during reprocessing of the bottom fraction by means of reesterification.

    Abstract translation: 本发明涉及一种制备1,6-己二醇和任选的（己内酯，其中酯化从环己烷羧酸混合物中得到的产物，酯化混合物分离成Esterfraktion和底部馏分和氢化Esterfraktion成1,6-己二醇 。将所述底部馏分水解与水和再循环至酯化反应。与水的塔底馏分的水解，简化了工艺并如通过酯交换在塔底馏分的后处理进行金属氧化物的排放和金属氧化物的所述植物的部分的沉积，避免 ，

    Removal of formic acid from aqueous solutions containing the products of cyclohexane oxidation, by decomposition of the formic acid at a catalyst comprising a basic metal oxide on an oxide support.
    3.
    发明专利
    Removal of formic acid from aqueous solutions containing the products of cyclohexane oxidation, by decomposition of the formic acid at a catalyst comprising a basic metal oxide on an oxide support. 未知

    公开(公告)号：DE10128249A1

    公开(公告)日：2002-12-12

    申请号：DE10128249

    申请日：2001-06-11

    Applicant: BASF AG

    Inventor： NOEBEL THOMAS

    IPC: C07C27/26 ,  B01D1/00 ,  C07C29/80 ,  C07C29/88 ,  C07C35/08 ,  C07C45/33 ,  C07C45/85 ,  C07C49/403 ,  C07C29/74 ,  C07C45/78 ,  C07D223/08

    Abstract: Providing a process for the at least partial removal of formic acid from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol. A process for the at least partial removal of formic acid from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol comprises decomposition of the formic acid at a decomposition catalyst comprising a basic metal oxide comprising a Group 2,4,5,12 and/or 14 metal or group 8-11 precious metal on an oxide support. An Independent claim is included for a process for the further processing of the reaction products of cyclohexane oxidation by: (A) extraction of the reaction products of the cyclohexane oxidation with an aqueous wash liquid to yield a carboxylic acid containing aqueous solution; (B) distillation of the aqueous solution from step (A) to form an aqueous solution containing formic acid, cyclohexanone and cyclohexanol as well as other organic byproducts and a carboxylic acid mixture that may be conventionally processed to form 1,6-hexanediol; (C) at least partial removal of the formic acid from the mixture in (B) by decomposition of the formic acid at a decomposition catalyst comprising a basic metal oxide comprising a Group 2,4,5,12 and/or 14 metal or group 8-11 precious metal on an oxide support; (D) further processing of the cyclohexane and cyclohexanol containing aqueous solution to form epsilon-caprolactam or addition of the resulting cyclohexanone and cyclohexanol containing aqueous solution as a wash liquid in step (A).

    6.
    发明专利
    未知

    公开(公告)号：DE50202180D1

    公开(公告)日：2005-03-10

    申请号：DE50202180

    申请日：2002-06-10

    Applicant: BASF AG

    Inventor： NOEBEL THOMAS

    IPC: C07C27/26 ,  B01D1/00 ,  C07C29/80 ,  C07C29/88 ,  C07C35/08 ,  C07C45/33 ,  C07C45/85 ,  C07C49/403

    Abstract: Formic acid is at least partly removed from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol by decomposition over certain decomposition catalysts. The method is preferably used for processing reaction products from the oxidation of cyclohexane and comprises: (i) extracting a product gas mixture obtained in the oxidation of cyclohexane with an aqueous scrubbing liquid, (ii) separating the aqueous solution obtained in (i) by distillation into an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol together with further minor organic components and a carboxylic acid mixture (iii) removing the formic acid at least partially from the aqueous solution obtained in (ii) by decomposition, and (iv) further processing the aqueous solution obtained in (iii) to give epsilon-caprolactam, or using the aqueous solution obtained in (iii) as scrubbing liquid in (i).

    7.
    发明专利
    未知

    公开(公告)号：DE50005700D1

    公开(公告)日：2004-04-22

    申请号：DE50005700

    申请日：2000-06-21

    Applicant: BASF AG

    Inventor： STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  RUST HARALD

    IPC: C07B61/00 ,  C07C29/149 ,  C07C31/20

    Abstract: A process for preparing 1,6-hexanediol from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol after water extraction of the reaction mixture followed by extraction with aqueous sodium hydroxide solution, by esterification of the acids and hydrogenation comprisesa) liberating the carboxylic acids from the alkaline extract by addition of a mineral acid,b) fractionating the organic phase comprising carboxylic acids to give a distillate comprising the low molecular weight monocarboxylic acids and a residue comprising adipic acid and 6-hydroxycaproic acid,c) reacting the monocarboxylic an dicarboxylic acids present in the aqueous dicarboxylic acid mixture with a low molecular weight alcohol to give the corresponding carboxylic esters,d) freeing the esterification mixture obtained of excess alcohol and low boilers in a first distillation step,e) fractionating the bottom product in a second distillation step 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,f) catalytically hydrogenating the ester fraction which is essentially free of 1,4-cyclohexanediols andg) isolating 1,6-hexanediol from the hydrogenation product in a manner known per se in a final distillation step.

    METHOD FOR REMOVING FORMIC ACID FROM AQUEOUS SOLUTIONS
    8.
    发明专利
    METHOD FOR REMOVING FORMIC ACID FROM AQUEOUS SOLUTIONS 未知

    公开(公告)号：CA2441465A1

    公开(公告)日：2002-12-19

    申请号：CA2441465

    申请日：2002-06-10

    Applicant: BASF AG

    Inventor： NOEBEL THOMAS

    IPC: C07C27/26 ,  B01D1/00 ,  C07C29/80 ,  C07C29/88 ,  C07C35/08 ,  C07C45/33 ,  C07C45/85 ,  C07C49/403 ,  C07C31/135 ,  C07C45/82

    Abstract: Disclosed is a method for at least partially removing formic acid from an aqueous solution containing formic acid, cyclohexanone and cyclohexanol, wherein the formic acid is decomposed on on a basic metal oxide made of meta l from groups 2, 4, 5 12 and/or 14 or on a precious metal of groups 8 - 11 on an oxidic carrier in the form of a decomposition catalyst. Preferably, a method for further processing reaction products of cyclohexane oxidation is used, comprising the following steps: (i) extraction of the product gas mixture obtained during cyclohexane oxidation with an aqueous washing liquid, an aqueous solution containing carboxylic acid being obtained; (ii) separation by distillation of the aqueous solution containing carboxylic acid obtained in step (i) to form an aqueous solution containing formic acid, cyclohexanone a nd Cyclohexanol in addition to other organic minor components, and to form a carboxylic acid mixture, whereby the carboxylic acid mixture is further processed in the usual manner to form 1,6-hexandiol, (iii) the formic acid i s at least partially removed from the aqueous solution containing formic acid, cyclohexanone and cyclohexanol obtained in step (ii) by decomposing the form ic acid on a basic metal oxide made of metal from groups 2, 4, 5, 12 and/or 14 or on a preciousmetal of groups 8 - 11 on an oxidic or non-oxidic carrier in th e form of a decomposition catalyst, (iv) the aqueous solution containing cyclohexanone and cyclohexanol obtained in step (iii) is further processed t o form epsilon-caprolactam, or the aqueous solution containing cyclohexanone a nd cyclohexanol obtained in step (iii) is used as a washing fluid in step (i).

    9.
    发明专利
    未知

    公开(公告)号：AT288312T

    公开(公告)日：2005-02-15

    申请号：AT02748752

    申请日：2002-06-10

    Applicant: BASF AG

    Inventor： NOEBEL THOMAS

    IPC: C07C27/26 ,  B01D1/00 ,  C07C29/80 ,  C07C29/88 ,  C07C35/08 ,  C07C45/33 ,  C07C45/85 ,  C07C49/403

    Abstract: Formic acid is at least partly removed from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol by decomposition over certain decomposition catalysts. The method is preferably used for processing reaction products from the oxidation of cyclohexane and comprises: (i) extracting a product gas mixture obtained in the oxidation of cyclohexane with an aqueous scrubbing liquid, (ii) separating the aqueous solution obtained in (i) by distillation into an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol together with further minor organic components and a carboxylic acid mixture (iii) removing the formic acid at least partially from the aqueous solution obtained in (ii) by decomposition, and (iv) further processing the aqueous solution obtained in (iii) to give epsilon-caprolactam, or using the aqueous solution obtained in (iii) as scrubbing liquid in (i).

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