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    • 1. 发明授权
    • Water-containing concentrate of at least one alkyl- or
alkenyl-substituted ammonium compound
    • 至少一种烷基或烯基取代的铵化合物的含水浓缩物
    • US5252257A
    • 1993-10-12
    • US834414
    • 1992-02-12
    • Heinz HoffmannGunther HertelHubert Seitz
    • Heinz HoffmannGunther HertelHubert Seitz
    • C07C209/90C07C211/63C07C215/06C11D1/62C11D1/645C11D3/00D06M13/46D06M13/463
    • C11D1/62C11D1/645C11D3/0015D06M13/46D06M13/463
    • The concentrate contains an ammonium compound which carries a longer-chain and a medium-chain substituent on the nitrogen atom, and both the other substituents are either hydrogen atoms, methyl, ethyl or .beta.-hydroxyethyl. The medium-chain substituent should have half the carbon atoms of the longer-chain substituent or one or two carbon atoms less than half. Instead of an ammonium compound, a mixture of several ammonium compounds can also be present which on average corresponds to the formula described above. In addition to water, the concentrate can also contain 0 to 10% by weight, relative to the total amount of the ammonium compounds, of one or more compounds which are selected from amongst alkali metal salts, ammonium salts, aliphatic amines, alkyl or alkenyl esters or olefins having 6 to 20 carbon atoms. The concentrates have a low viscosity, which makes them easily pumpable, transportable and meterable. They can be diluted without noticeable increase in viscosity and contain virtually no combustible solvents.
    • 浓缩物含有在氮原子上带有长链和中链取代基的铵化合物,其它取代基均为氢原子,甲基,乙基或β-羟基乙基。 中链取代基应具有长链取代基的一半碳原子或少于一半的一个或两个碳原子。 代替铵化合物,也可以存在几种铵化合物的混合物,其平均对应于上述式。 除了水之外,相对于铵化合物的总量,浓缩物还可以含有0至10重量%的一种或多种选自碱金属盐,铵盐,脂族胺,烷基或链烯基的化合物 具有6至20个碳原子的酯或烯烃。 浓缩物具有低粘度,这使得它们容易泵送,可运输和可计量。 它们可以稀释,粘度不会明显增加,几乎不含可燃溶剂。
    • 4. 发明授权
    • Process for the preparation of pure aqueous betaine solutions
    • 制备纯甜菜碱水溶液的方法
    • US5371250A
    • 1994-12-06
    • US120281
    • 1993-09-13
    • Hubert SeitzReinhard Vybiral
    • Hubert SeitzReinhard Vybiral
    • B01F17/28C07C227/08C07C227/40C07C227/44C07C229/12C07C231/12C07C233/36C07C231/100
    • C07C227/08C07C231/12
    • The process described relates to the preparation of aqueous betaine solutions by reaction of a tertiary amine with an .omega.-monohalocarboxylic acid, preferably monochloroacetic acid, and an alkali metal hydroxide in the presence of water, which solutions are said to be highly pure particularly in respect of the tertiary starting amine and .omega.-monohalocarboxylic acid. This is achieved by first reacting the three reaction components in a certain molar ratio with the aim of obtaining a betaine solution which comprises only a tolerated amount of starting amine. This aqueous betaine solution is then treated with a sulfonating agent, preferably with an alkali metal sulfite, alkali metal pyrosulfite or alkali metal bisulfite, for conversion of the .omega.-monohalocarboxylic acid present into the corresponding sulfocarboxylic acid, which is not troublesome. The process described is simple to carry out and leads to the highly pure aqueous betaine solutions mentioned.
    • 所描述的方法涉及通过叔胺与ω-单卤代羧酸(优选一氯乙酸)和碱金属氢氧化物在水存在下反应来制备甜菜碱水溶液,该溶液被认为是高度纯的,特别是在这方面 的叔起始胺和ω-单卤代羧酸。 这通过首先使三种反应组分以一定摩尔比反应,以获得仅包含耐受量的起始胺的甜菜碱溶液来实现。 然后用磺化剂,优选用碱金属亚硫酸盐,碱金属焦亚硫酸盐或碱金属亚硫酸氢盐处理这种甜菜碱水溶液,用于将存在的ω-单卤代羧酸转化成相应的磺基羧酸,这是不麻烦的。 所描述的方法很容易进行并导致所提及的高纯度的甜菜碱水溶液。
    • 5. 发明授权
    • Process for the preparation of aqueous betaine solutions
    • 制备甜菜碱水溶液的方法
    • US5292942A
    • 1994-03-08
    • US42115
    • 1993-04-02
    • Rudolf AignerGuillermo MaierRainer MullerHubert Seitz
    • Rudolf AignerGuillermo MaierRainer MullerHubert Seitz
    • C07C227/08C07C229/12C07C229/16C07C231/12C07C233/36C11D1/90C07C229/00
    • A61K8/44C07C227/08C07C231/12A61Q19/10
    • A process is described for the preparation of aqueous solutions of betaines of the formula ##STR1## in which: R.sup.1 is an alkyl radical having 6 to 22 carbon atoms or is a radical of the formula R'CONH(CH.sub.2).sub.z --, in which R' has the meaning of R.sup.1 and z is 2, 3 or 4, R.sup.2 is an alkyl radical having 1 to 4 carbon atoms or is a radical of the formula --(CH.sub.2).sub.m --OH, in which m is 1, 2 or 3, R.sup.3 is an alkyl radical having 1 to 4 carbon atoms or is a radical of said formula --(CH.sub.2).sub.m --OH and y is 1, 2 or 3. The aqueous betaine solutions are prepared by quaternization of the corresponding tertiary amines with an .omega.-halocarboxylic acid and with an alkali metal hydroxide in the aqueous phase. The quaternization is carried out continuously in two or three stirred tanks arranged in a cascade, defined process characteristics being maintained in each tank. Using the novel process, aqueous betaine solutions are obtained in high yield and purity in a simple manner.
    • 描述了制备式“β”的甜菜碱水溶液的方法,其中:R 1是具有6至22个碳原子的烷基,或者是式R'CONH(CH 2)z - 的基团,其中 R'具有R 1的含义,z是2,3或4,R 2是具有1至4个碳原子的烷基,或者是式 - (CH 2)m -OH的基团,其中m是1,2或 3,R 3是具有1至4个碳原子的烷基或是所述式 - (CH 2)m -OH的基团,y是1,2或3.通过季铵化相应的叔胺与 ω-卤代羧酸和碱金属氢氧化物在水相中。 季铵化在连续排列的两个或三个搅拌槽中连续进行,在每个罐中保持定义的工艺特性。 使用该新方法,以简单的方式以高产率和纯度获得甜菜碱水溶液。