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    • 11. 发明公开
    • CHELATING AGENT BASED IONIC LIQUIDS, A PROCESS TO PREPARE THEM, AND THEIR USE
    • ON促排剂类离子液体及其制造方法和使用
    • EP2170808A2
    • 2010-04-07
    • EP08786691.9
    • 2008-07-31
    • Akzo Nobel N.V.
    • DE WOLF, Cornelia AdrianaKUZMANOVIC, BorisBEMELAAR, Johanna HendrikaVAN STRIEN, Cornelis Johannes GovardusHEUS, MartinTEN KATE, Antoon
    • C07C211/63C07C215/40C07C229/16C07C229/76C07F9/54
    • C07C229/16C07C211/63C07C215/40C07C229/76C07F9/5407
    • The present invention relates to ionic liquids of the formula: (Mm+)xH+y nN+R1R2R3R4 Z-N(-CHXCOO-)pY2-p or (Mm+)x H+y nP+R1R2R3R4 Z-N(-CHXCOO-)pY2-p wherein any one of R1 to R4 independently represents a hydrogen, alkyl, cycloalkyl, aryl or aralkyl group that may be unsubstituted or substituted with one or more groups selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, an ether group, COOR5, CHO, COR5 or OR5, wherein R5 is an alkyl or cycloalkyl group, and wherein two of the groups R1 to R4 together with the N atom may form a heteroaromatic or heterocyclic group such as a pyridinium, pyrrolidinium or imidazolium group; the Z-N(-CHXCOO-)pY2-p is the anion derived from a chelating agent, wherein Z is a group selected from hydrogen, alkyl, an alkyl group optionally substituted with one or more carboxylate groups, hydroxyl groups and/or optionally containing one or more ether functionalities, or Z is a group of the formula -CH2-CHR6-R7-N-(CH2COO-)2, R6 is hydrogen or a C1-C3 alkyl group, R7 is a single bond, a C1-C3 alkylene group or one or more groups of the formula -N(CH2COO-)-CH2-CHR6-R8-, R8 is a single bond or a C1-C3 alkylene group, p is 2 or 1, X is H, an aryl group that may be unsubstituted or substituted with an OH and/or CH3 substituent, or CH2COO-, and when p is 1, Y is H, a benzyl group that may be unsubstituted or substituted with an OH and/or CH3 group, or a phenyl group that may be unsubstituted or substituted with an OH and/or CH3 substituent, Mm+ is a m-valent metal cation, n is 1 or higher, x is from 0 to 5, y is from 0 to 3, the total positive charge of (Mm+)x, H+y,and nN+R1R2R3R4 or nP+R1R2R3R4 equals the negative charge of the Z-N(-CHXCOO-)pY2-p anion, wherein at least one of the following conditions is fulfilled: i) the chelating agent has a connectivity index 1 X/3 X of below 2.17, ii) at least two different cations are present in the salt, whereby a proton cation does not count as one of the at least two, iii) at least one cation is a bivalent, trivalent, tetravalent or pentavalent cation, and having a melting point below 120°C. The invention further relates to a process to prepare them and their use.
    • 12. 发明公开
    • PROCESS TO PREPARE AMINO ACID-N, N-DIACETIC ACID COMPOUNDS
    • 制备氨基酸-N,N-二乙酸化合物的方法
    • EP2086923A1
    • 2009-08-12
    • EP07847408.7
    • 2007-11-27
    • Akzo Nobel N.V.
    • HEUS, MartinLAMMERS, HansVOLMER, Arie
    • C07C227/40C07C229/16C07C229/24B01D61/44
    • C07C227/40B01D61/44C07C229/16C07C229/24
    • The invention relates to a process for the production of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups or its salt with less than an equivalent of alkaline metal based on the number of carboxyl groups, said process comprising reducing alkali metal ions from an aqueous solution of an alkali metal salt of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups and acidifying the amino carboxylate starting material by first performing a chemical acidification step using an organic or inorganic acid to get a compound in which at least one of the groups is protonated, and in a subsequent step further acidifying the amino carboxylate starting material and reducing alkali metal ions from an aqueous solution of the partially acidified alkali metal salt of the amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups by electrodialysis, wherein the electrodialysis is performed using a hydrogen ion permselective membrane on the anode side and a cation-permeable membrane on the cathode side.
    • 本发明涉及一种生产具有至少一个仲或叔氨基和三个或更多个羧基或其盐的氨基酸的方法,所述羧基或其盐具有少于基于羧基数量的碱金属当量,所述方法包括 从具有至少一个仲氨基或叔氨基和三个或更多个羧基的氨基酸的碱金属盐的水溶液中还原碱金属离子,并且通过首先使用有机或有机酸进行化学酸化步骤来酸化氨基羧酸盐起始材料 得到其中至少一个基团被质子化的化合物,并且在随后的步骤中进一步酸化氨基羧酸盐起始原料并且从部分酸化的氨基酸的碱金属盐的水溶液中还原碱金属离子 至少一个仲或叔氨基和三个或更多个羧基,通过电渗析进行 使用阳极侧上的氢离子选择性渗透膜和阴极侧上的阳离子渗透膜进行渗析。