公开(公告)号：WO2009092736A1

公开(公告)日：2009-07-30

申请号：PCT/EP2009/050663

申请日：2009-01-21

Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE) ,  SIMON, Olivier

Inventor： SIMON, Olivier

IPC: C07C51/44 ,  C07C59/153

CPC classification number: C07C51/445 ,  C07C59/153

Abstract: The invention relates to a process for separating glyoxylic acid starting from an aqueous reaction medium containing glyoxylic acid and hydrochloric acid, comprising a step of countercurrent steam stripping of the reaction medium in order to obtain, on the one hand, a gas phase containing the volatile hydrochloric acid and, on the other hand, a liquid phase containing the purified glyoxylic acid.

Abstract translation: 本发明涉及一种从含有乙醛酸和盐酸的含水反应介质中分离乙醛酸的方法，包括反应介质逆流汽提的步骤，以便一方面获得含有挥发性 另一方面，含有纯化的乙醛酸的液相。

公开(公告)号：WO0226701A3

公开(公告)日：2003-05-01

申请号：PCT/GB0104300

申请日：2001-09-26

Applicant: SCIONIX LTD ,  ABBOTT ANDREW PETER ,  DAVIES DAVID LLOYD ,  CAPPER GLEN ,  RASHEED RAYMOND KELVIN ,  TAMBYRAJAH VASUKI

Inventor： ABBOTT ANDREW PETER ,  DAVIES DAVID LLOYD ,  CAPPER GLEN ,  RASHEED RAYMOND KELVIN ,  TAMBYRAJAH VASUKI

IPC: C07H3/02 ,  B01J31/02 ,  B01J31/04 ,  C07C31/20 ,  C07C31/36 ,  C07C33/22 ,  C07C39/04 ,  C07C39/07 ,  C07C39/28 ,  C07C41/30 ,  C07C47/565 ,  C07C47/575 ,  C07C47/58 ,  C07C53/126 ,  C07C53/16 ,  C07C53/18 ,  C07C55/06 ,  C07C55/08 ,  C07C57/32 ,  C07C59/10 ,  C07C59/153 ,  C07C59/265 ,  C07C59/50 ,  C07C63/06 ,  C07C65/03 ,  C07C205/06 ,  C07C211/10 ,  C07C211/11 ,  C07C211/46 ,  C07C211/63 ,  C07C215/12 ,  C07C215/76 ,  C07C215/90 ,  C07C219/06 ,  C07C229/04 ,  C07C229/12 ,  C07C229/60 ,  C07C233/05 ,  C07C233/65 ,  C07C235/46 ,  C07C275/00 ,  C07C275/02 ,  C07C275/20 ,  C07C309/30 ,  C07C311/16 ,  C07C335/02 ,  C25C1/20 ,  C25D3/02 ,  C25F3/16

CPC classification number: C25D3/02 ,  B01J31/006 ,  B01J31/0249 ,  B01J31/0279 ,  B01J31/0284 ,  B01J31/04 ,  B01J2231/125 ,  B01J2231/4261 ,  C07C41/30 ,  C07C275/02 ,  C25F3/16 ,  H01M2300/0025 ,  Y02P20/542 ,  C07C43/215

Abstract: Ionic compounds with a freezing point of up to 100 DEG C are formed by the reaction of an one amine salt of formula (I) R R R R N X , such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X , such as urea, wherein the molar ratio of I to II is from 1:1.5 to 1:2.5. R , R , R and R may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R and R taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R , R , R and R are not identical, X may be NO3 , F, CI , Br , I , BF4 , CIO4 , CN , SO3CF3 , or COOCF3 . The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.

Abstract translation: 通过一种式（I）的胺盐R 1 R 2 R 3，R 4，N +，X 4， >，如具有与X'形成氢键的有机化合物（II）的氯化胆碱，例如脲，其中I与II的摩尔比为1:1.5至1:2.5。 R 1，R 2，R 3和R 4可以是H，任选取代的C 1 -C 5烷基，任选取代的C 6至C 10环烷基，任选取代的C 6至C 12芳基，任选取代的C 7至C 12烷芳基 或R 1和R 2一起可以表示C4至C10任选取代的亚烷基，从而与式I的N原子形成5至11元杂环，并且所有R 1，R R 3和R 4不相同，X可以是NO 3 - ，F，Cl - ，Br - ，I - ，BF 4 - ， - CIO4 - ，CN - ，SO3CF3 - 或COOCF3 - 。 离子化合物可用作溶剂，例如在电镀，电解冶金和电解抛光中的电解质，以及作为催化剂。

公开(公告)号：WO2022258732A1

公开(公告)日：2022-12-15

申请号：PCT/EP2022/065630

申请日：2022-06-09

Applicant: AVANTIUM KNOWLEDGE CENTRE B.V.

Inventor： KRASOVIC, Julia ,  JONGERIUS, Anna Louise ,  ESMAEILI, Faezeh

IPC: C07C51/42 ,  C07C51/43 ,  C07C55/06 ,  C07C59/153

Abstract: The present invention concerns a process for the recovery and purification of glyoxylic acid from a process stream comprising glyoxylic acid and oxalic acid, wherein the process stream comprising glyoxylic acid and oxalic acid is subjected to a number of alternating separation and dehydration steps. The process comprising the steps of: (i) providing an aqueous solution comprising glyoxylic acid and oxalic acid; (ii) precipitating at least a portion of the oxalic acid using low-temperature crystallization at a temperature of at most 18 °C; (iii) separating the precipitated oxalic acid from the solution to obtain a solution depleted in oxalic acid; (iv) concentrating the solution depleted in oxalic obtained in step (iii) using reverse osmosis; and repeating steps (ii)- (iv) with the concentrated solution obtained in step (iv) until a purified glyoxylic acid stream with a predetermined degree of purity is obtained. The invention also relates to a system for carrying out the process.

公开(公告)号：WO2009092734A1

公开(公告)日：2009-07-30

申请号：PCT/EP2009/050661

申请日：2009-01-21

Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE) ,  BLEGER, François ,  SIMON, Olivier ,  SCHOUTEETEN, Alain

Inventor： BLEGER, François ,  SIMON, Olivier ,  SCHOUTEETEN, Alain

IPC: C07C51/27 ,  C07C59/153

CPC classification number: C07C51/27 ,  C07C59/153

Abstract: The invention relates to a method for preparing an aqueous solution of glyoxylic acid by oxidation of an aqueous solution of glyoxal with oxygen or a gas containing oxygen, in the presence of a catalytic quantity of nitric acid and/or at least one nitrogen oxide, a strong acid not oxidizing glyoxal, and by maintaining conditions satisfying the equation K L a/Q > 10, where K L a is the total volumetric mass transfer coefficient and Q is the heat load liberated by the reaction per mole of glyoxal.

Abstract translation: 本发明涉及一种在催化量的硝酸和/或至少一种氮氧化物存在下，用氧气或含氧气体氧化乙二醛水溶液来制备乙醛酸水溶液的方法， 强酸不氧化乙二醛，并且通过维持满足方程式KLa / Q> 10的条件，其中KLa是总体积传质系数，Q是通过每摩尔乙二醛反应释放的热负荷。

公开(公告)号：WO02026701A2

公开(公告)日：2002-04-04

申请号：PCT/GB2001/004300

申请日：2001-09-26

IPC: C07H3/02 ,  B01J31/02 ,  B01J31/04 ,  C07C31/20 ,  C07C31/36 ,  C07C33/22 ,  C07C39/04 ,  C07C39/07 ,  C07C39/28 ,  C07C41/30 ,  C07C47/565 ,  C07C47/575 ,  C07C47/58 ,  C07C53/126 ,  C07C53/16 ,  C07C53/18 ,  C07C55/06 ,  C07C55/08 ,  C07C57/32 ,  C07C59/10 ,  C07C59/153 ,  C07C59/265 ,  C07C59/50 ,  C07C63/06 ,  C07C65/03 ,  C07C205/06 ,  C07C211/10 ,  C07C211/11 ,  C07C211/46 ,  C07C211/63 ,  C07C215/12 ,  C07C215/76 ,  C07C215/90 ,  C07C219/06 ,  C07C229/04 ,  C07C229/12 ,  C07C229/60 ,  C07C233/05 ,  C07C233/65 ,  C07C235/46 ,  C07C275/00 ,  C07C275/02 ,  C07C275/20 ,  C07C309/30 ,  C07C311/16 ,  C07C335/02 ,  C25C1/20 ,  C25D3/02 ,  C25F3/16

CPC classification number: C25D3/02 ,  B01J31/006 ,  B01J31/0249 ,  B01J31/0279 ,  B01J31/0284 ,  B01J31/04 ,  B01J2231/125 ,  B01J2231/4261 ,  C07C41/30 ,  C07C275/02 ,  C25F3/16 ,  H01M2300/0025 ,  Y02P20/542 ,  C07C43/215

Abstract: Ionic compounds with a freezing point of up to 100 DEG C are formed by the reaction of an one amine salt of formula (I) R R R R N X , such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X , such as urea, wherein the molar ratio of I to II is from 1:1.5 to 1:2.5. R , R , R and R may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R and R taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R , R , R and R are not identical, X may be NO3 , F, CI , Br , I , BF4 , CIO4 , CN , SO3CF3 , or COOCF3 . The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.

Abstract translation: 通过一种式（I）的胺盐R 1 R 2 R 3，R 4，N +，X 4， >，如具有与X'形成氢键的有机化合物（II）的氯化胆碱，例如脲，其中I与II的摩尔比为1:1.5至1:2.5。 R 1，R 2，R 3和R 4可以是H，任选取代的C 1 -C 5烷基，任选取代的C 6至C 10环烷基，任选取代的C 6至C 12芳基，任选取代的C 7至C 12烷芳基 或R 1和R 2一起可以表示C4至C10任选取代的亚烷基，从而与式I的N原子形成5至11元杂环，并且所有R 1，R R 3和R 4不相同，X可以是NO 3 - ，F，Cl - ，Br - ，I - ，BF 4 - ， - CIO4 - ，CN - ，SO3CF3 - 或COOCF3 - 。 离子化合物可用作溶剂，例如在电镀，电解冶金和电解抛光中的电解质，以及作为催化剂。