Process for purifying tertiary fatty alkylmethylamines
    1.
    发明授权
    Process for purifying tertiary fatty alkylmethylamines 失效
    纯化叔脂肪烷基甲胺的方法

    公开(公告)号:US5902903A

    公开(公告)日:1999-05-11

    申请号:US584169

    申请日:1996-01-11

    CPC分类号: C07C209/84

    摘要: In the process described, purification and improvement in odor of, in particular, fatty alkyldimethylamines is achieved by exposing, in the liquid phase, the tertiary amine to be treated to a vacuum or an inert gas stream. By means of the process according to the invention, in a relatively short time and in a simple and economical manner, a tertiary fatty alkylmethylamine is obtained which is essentially trimethylamine-free and improved in odor.

    摘要翻译: 在所描述的方法中,特别是脂肪烷基二甲基胺的气味的纯化和改进通过在液相中将要处理的叔胺暴露于真空或惰性气体流中来实现。 通过本发明的方法,在相当短的时间内和简单和经济地得到叔脂肪烷基甲基胺,其基本上不含三甲胺并且改善了气味。

    Process for the preparation of pure aqueous betaine solutions
    2.
    发明授权
    Process for the preparation of pure aqueous betaine solutions 失效
    制备纯甜菜碱水溶液的方法

    公开(公告)号:US5371250A

    公开(公告)日:1994-12-06

    申请号:US120281

    申请日:1993-09-13

    CPC分类号: C07C227/08 C07C231/12

    摘要: 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.

    摘要翻译: 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。

    Process for the preparation of aqueous betaine solutions
    3.
    发明授权
    Process for the preparation of aqueous betaine solutions 失效
    制备甜菜碱水溶液的方法

    公开(公告)号:US5292942A

    公开(公告)日:1994-03-08

    申请号:US42115

    申请日:1993-04-02

    摘要: 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.

    摘要翻译: 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。

    Concentrated aqueous dispersions of tetrafluoroethylene polymers, and
process for their preparation
    4.
    发明授权
    Concentrated aqueous dispersions of tetrafluoroethylene polymers, and process for their preparation 失效
    四氢氟乙烯聚合物浓缩水分散体及其制备方法

    公开(公告)号:US5219910A

    公开(公告)日:1993-06-15

    申请号:US916202

    申请日:1992-07-17

    摘要: Concentrated, aqueous, colloidal dispersions of tetrafluoroethylene polymers having a polymer solids content of 25 to 70% by weight, which comprise, as the dispersion stabilizer, an amine oxide of the formula ##STR1## in which R.sup.1 is an alkyl radical having 6 to 22 carbon atoms or a mixture of such alkyl radicals and R.sup.2 is an alkyl radical having 1 to 22 carbon atoms or a mixture of such alkyl radicals, and in which R.sup.1 and R.sup.2 are identical or different and 50 to 0% by weight of the alkyl radicals R.sup.1 and R.sup.2 can be replaced by alkenyl radicals having 6 to 22 carbon atoms and having 1 to 3 C.dbd.C double bonds, are obtained by concentration with addition of these dispersion stabilizers. The dispersions are used for impregnating yarns and textile sheet-like structures.

    摘要翻译: 聚合物固体含量为25至70重量%的四氟乙烯聚合物的浓缩水性胶态分散体,其包含作为分散稳定剂的下式的氧化胺其中R 1为具有 6至22个碳原子或这些烷基和R 2的混合物是具有1至22个碳原子的烷基或这种烷基的混合物,并且其中R 1和R 2相同或不同,和50至0重量% 通过加入这些分散稳定剂浓缩得到烷基R1和R2可以被具有6至22个碳原子并且具有1至3个C = C双键的烯基取代。 分散体用于浸渍纱线和织物片状结构。

    Process for the preparation of N-alkypolyhydroxyalkylamines from monoalkylamine and reducing sugar
    5.
    发明授权
    Process for the preparation of N-alkypolyhydroxyalkylamines from monoalkylamine and reducing sugar 失效
    从单烷基胺和还原糖制备N-烷基多羟基烷基胺的方法

    公开(公告)号:US06365778B1

    公开(公告)日:2002-04-02

    申请号:US09521480

    申请日:2000-03-09

    IPC分类号: C07C209116

    摘要: Aqueous, alcoholic or aqueous-alcoholic solutions of a monoalkylamine and a reducing sugar are simultaneously injected into a mixing unit and the two solutions are mixed under turbulence in the mixing unit for 6 seconds to 5 minutes at a temperature of 25 to 60° C. and a pressure of 50 to 90 bar. The mixture is then added to a hydrogenation reactor and hydrogenated with hydrogen in the presence of a hydrogenation catalyst. An alkylpolyhydroxyalkylamine is obtained in high yield and with high purity.

    摘要翻译: 将单烷基胺和还原糖的水溶液,醇或水溶液同时注入混合单元中,并将两种溶液在混合单元中在湍流下在25至60℃的温度下混合6秒至5分钟。 压力为50至90巴。 然后将混合物加入氢化反应器中,并在氢化催化剂存在下用氢气氢化。 以高产率和高纯度获得烷基聚羟基烷基胺。

    Water-containing concentrate of at least one alkyl- or
alkenyl-substituted ammonium compound
    6.
    发明授权
    Water-containing concentrate of at least one alkyl- or alkenyl-substituted ammonium compound 失效
    至少一种烷基或烯基取代的铵化合物的含水浓缩物

    公开(公告)号:US5252257A

    公开(公告)日:1993-10-12

    申请号:US834414

    申请日:1992-02-12

    摘要: 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.

    摘要翻译: 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。