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63 条记录 (耗时 0.02 秒)

    Process for the preparation of alkali metal salts of 2-phosphonobutane-1,2,4-tricarboxylic acid
    1.
    发明授权
    Process for the preparation of alkali metal salts of 2-phosphonobutane-1,2,4-tricarboxylic acid 失效
    制备2-膦酰基-1,2,4-三羧酸的碱金属盐的方法

    公开(公告)号：US5233088A

    公开(公告)日：1993-08-03

    申请号：US746841

    申请日：1991-08-19

    申请人： Uwe Arndt ,  Hans-Dieter Block ,  Roland Kleinstuck

    发明人： Uwe Arndt ,  Hans-Dieter Block ,  Roland Kleinstuck

    IPC分类号： C07F9/38

    CPC分类号： C07F9/3808

    摘要： The present invention relates to a process for the preparation of alkali metal salts of 2-phosphonobutane-1,2,4-tricarboxylic acid, characterized in that 2-phosphonobutane-1,2,4-tricarboxylic acid penta-alkyl esters or partial esters are reacted with an aqueous alkali metal hydroxide solution in a ratio of from 0.5 to 0.76 mol, preferably from 0.6 to 0.7 mol of alkali metal hydroxide per mol of ester function at temperatures from 20.degree. to 200.degree. C. in a one-shot process.

    摘要翻译： 本发明涉及2-膦酰基丁烷-1,2,4-三羧酸的碱金属盐的制备方法，其特征在于2-膦酰基丁烷-1,2,4-三羧酸五烷基酯或偏酯 在一步法中在20℃至200℃的温度下，每摩尔酯官能团与碱金属氢氧化物水溶液的比例为0.5至0.76摩尔，优选0.6至0.7摩尔碱金属氢氧化物。 。

    Production of 2-phosphonobutane-1,2,4-tricarboxylic acid and the alkali metal salts thereof
    3.
    发明授权
    Production of 2-phosphonobutane-1,2,4-tricarboxylic acid and the alkali metal salts thereof 失效
    2-膦酰基丁烷-1,2,4-三羧酸及其碱金属盐的制备

    公开(公告)号：US5639909A

    公开(公告)日：1997-06-17

    申请号：US650681

    申请日：1996-05-20

    申请人： Christoph Holzner ,  Wolfgang Ohlendorf ,  Hans-Dieter Block ,  Horst Bertram ,  Roland Kleinstuck ,  Hans-Heinrich Moretto

    发明人： Christoph Holzner ,  Wolfgang Ohlendorf ,  Hans-Dieter Block ,  Horst Bertram ,  Roland Kleinstuck ,  Hans-Heinrich Moretto

    IPC分类号： C07F9/38 ,  C07F9/40

    CPC分类号： C07F9/3808 ,  C07F9/4006

    摘要： This invention relates to an improved process for the production of 2-phosphono-butane-1,2,4-tricarboxylic acid (PBTC) and the alkali metal salts thereof, in which process dialkyl phosphite, preferably dimethyl or diethyl phosphite, and ethene-1,2-dicarboxylic acid dialkyl ester, in particular the dimethyl or diethyl ester of maleic acid and/or fumaric acid, are initially reacted in the presence of a basic catalyst to yield a phosphonosuccinic acid tetraalkyl ester, the resultant ester is thereupon reacted without further working up with acrylic acid alkyl ester, preferably methyl or ethyl acrylate, in the presence of an alkaline catalyst and the reaction product obtained in this manner is saponified without further working up to yield PBTC or the alkali metal salts thereof. The product when mixed with bleaching lye exhibits reduced chlorine depletion.

    摘要翻译： 本发明涉及一种制备2-膦酰基 - 丁烷-1,2,4-三羧酸（PBTC）及其碱金属盐的改进方法，其中亚磷酸二烷基酯，优选亚磷酸二甲酯或二乙酯和乙烯 - 1,2-二羧酸二烷基酯，特别是马来酸和/或富马酸的二甲基酯或二乙酯，最初在碱性催化剂存在下反应，得到磷酸二琥珀酸四烷基酯，得到的酯随后反应而没有 进一步用丙烯酸烷基酯，优选丙烯酸甲酯或丙烯酸乙酯在碱性催化剂的存在下进行处理，将以这种方式获得的反应产物进行皂化而不进一步加工得到PBTC或其碱金属盐。 当与漂白碱液混合时，产品会减少氯的消耗。

    Propane-1,3-diphosphonic acids for conditioning water
    5.
    发明授权
    Propane-1,3-diphosphonic acids for conditioning water 失效
    丙烷-1,3-二膦酸调理水

    公开(公告)号：US4246103A

    公开(公告)日：1981-01-20

    申请号：US15999

    申请日：1979-02-28

    申请人： Hans-Dieter Block ,  Herbert Kallfass ,  Roland Kleinstuck

    发明人： Hans-Dieter Block ,  Herbert Kallfass ,  Roland Kleinstuck

    IPC分类号： C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C09K3/00 ,  C23F11/167 ,  C23F14/02

    CPC分类号： C23F11/167 ,  C02F5/14 ,  C23F11/1676

    摘要： Water is conditioned by adding thereto a corrosion-inhibiting, concretion inhibiting, precipitation retarding, deflocculating, dispersing or fluidifying amount of an acid of the formula ##STR1## in which R.sup.1 and R.sup.2, independently of one another, represent hydrogen where a or b=1, or where a or b=0 represent an optionally substituted alkyl radical with 1-8 carbon atoms or an optionally substituted phenyl radical,R.sup.3 represents hydrogen, an optionally substituted alkyl radical with 1 to 4 carbon atoms, an optionally substituted phenyl radical, a halogen atom from the group comprising fluorine, chlorine and bromine, a hydroxyl group, an alkoxy group containing 1 to 8 carbon atoms, a carboxyl group or a group --P(O)--(O).sub.a --R.sup.1 OH,R.sup.4 represents hydrogen, an alkyl radical with 1 to 4 carbon atoms, an alkenyl radical with up to 3 carbon atoms, an optionally substituted phenyl radical, a carboxyl group, a fluorine or chlorine atom or a group --P(O)--(O).sub.a --R.sup.1 OH, orR.sup.3 and R.sup.4 together form a ring bridge with 3 to 5 methylene groups,R.sup.5 represents hydrogen, an optionally substituted alkyl radical with 1 to 4 carbon atoms, a carboxymethyl or carboxyethyl group optionally substituted by a methyl group, a succinyl group or a group having the structure--CHR.sup.4 --CHR.sup.3 --P(O)--(O).sub.a --R.sup.1 OH or the structure--CH.sub.2 --P(O)--(O).sub.a --R.sup.1 OH,R.sup.6 represents an optionally substituted phenyl radical, a carboxyl group or a group having the structure --P(O)--(O).sub.b --R.sup.2 OH, anda and b independently of one another represent the numbers 0 or 1,or a salt thereof.

    摘要翻译： 通过向其中加入腐蚀抑制，抑制凝结抑制，沉淀阻滞，抗絮凝，分散或流化量的式“IMAGE”酸，其中R 1和R 2彼此独立地表示氢，其中a或b = 1或其中a或b = 0表示任选取代的具有1-8个碳原子的烷基或任选取代的苯基，R 3表示氢，任选取代的具有1至4个碳原子的烷基，任选取代的苯基， 来自包含氟，氯和溴的卤素原子，羟基，含有1至8个碳原子的烷氧基，羧基或基团-P（O） - （O）a -R 10 OH，R 4表示氢 ，具有1至4个碳原子的烷基，具有至多3个碳原子的烯基，任选取代的苯基，羧基，氟或氯原子或基团-P（O） - （O）a - R1 OH或R3和R4一起形成环桥 e具有3至5个亚甲基，R 5表示氢，任选取代的具有1至4个碳原子的烷基，任选被甲基取代的羧甲基或羧乙基，琥珀酰基或具有结构-CHR4-CHR3- P（O） - （O）a-R 1 OH或结构-CH 2 -P（O） - （O）a -R 1 OH，R 6表示任选取代的苯基，羧基或具有结构-P （O） - （O）b -R 2 OH，a和b彼此独立地表示数字0或1，或其盐。

    Catalyzed production of phosphorous and phosphonous acid ester chlorides
    6.
    发明授权
    Catalyzed production of phosphorous and phosphonous acid ester chlorides 失效
    催化磷酸亚膦酸酯的生产

    公开(公告)号：US4118435A

    公开(公告)日：1978-10-03

    申请号：US819535

    申请日：1977-07-27

    申请人： Roland Kleinstuck ,  Hans-Dieter Block

    发明人： Roland Kleinstuck ,  Hans-Dieter Block

    IPC分类号： B01J27/00 ,  C07B61/00 ,  C07F9/146 ,  C07F9/42 ,  C07F9/48

    CPC分类号： C07F9/146 ,  C07F9/425

    摘要： In the production of phosphorous or phosphonous acid ester chlorides of the formulaR.sub.m (R'O).sub.n PCl.sub.3-m-nwhereinR and R' are various organic radicals,m = 0 or 1,n = 1 or 2, andm+n = 1 or 2,By reacting a trialkylphosphite, a triarylphosphite, a dialkylchlorophosphite or a diarylchlorophosphite with phosphorustrichloride, phosphorous acid alkyl ester dichloride, phosphorous acid aryl ester dichloride, or by reacting a dialkyl-phosphonite with dichlorophosphonite, at a temperature between about -10.degree. C and 120.degree. C, the improvement which comprises effecting the reaction in the presence of a catalytic quantity of a compound of at least one of 3- and 5-valent phosphorus, e.g. a phosphine, phosphine oxide, phosphine sulfide, halogen-phosphorane or phosphoric acid-tris-amide. A small amount of an alcohol or dialkalphosphite increases the yield.

    摘要翻译： 在制备磷或膦酸酯的情况下，式Rm（R'O）nPCl3-mn，其中R和R'为各种有机基团，M = 0 OR 1，N = 1或2，M + N = 1 OR 2，通过用磷酸三氯化磷，磷酸二烷基酯，磷酸三氟乙酸盐，磷酸二苯酯或二氯磷酸盐反应二氢氯磷酸盐，在-10℃下反应，形成三磷酸盐，二氢氯磷酸盐，二氢氯磷酸盐或二氢氯磷酸盐 和120℃，其改进包括在催化量的3-和5-价磷中的至少一种的化合物存在下进行反应，例如 膦，氧化膦，硫化膦，卤素 - 正膦或磷酸 - 三 - 酰胺。 少量的酒精或二亚磷酸酯提高产量。