Control of molten salt oxidation in production of chlorinated
hydrocarbons
    101.
    发明授权
    Control of molten salt oxidation in production of chlorinated hydrocarbons 失效
    控制氯化烃生产中的熔盐氧化

    公开(公告)号:US4071571A

    公开(公告)日:1978-01-31

    申请号:US660251

    申请日:1976-02-23

    申请人: Utah Tsao

    发明人: Utah Tsao

    CPC分类号: C07C17/152

    摘要: In the production of chlorinated hydrocarbons by contacting a molten salt mixture of the higher and lower chloride of a multivalent metal, such as a mixture of cuprous and cupric chloride, with molecular oxygen to effect oxidation to the oxychloride, followed by use of the oxidized salt for the production of chlorinated hydrocarbons, the quantity of carbon dioxide vented from the system is determined, and oxygen introduction is decreased in response to increases in vented carbon dioxide to decrease oxychloride concentration and limit carbon dioxide production.

    摘要翻译: 在通过使多价金属(例如亚铜和氯化铜的混合物)的较高和较低氯化物的熔融盐混合物与分子氧接触以生成氯化烃以使其氧化成氯氧化物,然后使用氧化盐 为了生产氯化碳氢化合物,确定从系统排出的二氧化碳的量,并且响应于排出的二氧化碳的增加而降低氧气的引入以减少氯氧化物浓度并限制二氧化碳的产生。

    Carbon dioxide removal from chlorinated hydrocarbon production system
    102.
    发明授权
    Carbon dioxide removal from chlorinated hydrocarbon production system 失效
    从氯化碳氢生产系统中除去二氧化碳

    公开(公告)号:US4039597A

    公开(公告)日:1977-08-02

    申请号:US602388

    申请日:1975-08-06

    申请人: Utah Tsao

    发明人: Utah Tsao

    CPC分类号: C07C17/38 Y02C20/20

    摘要: In the production of chlorinated hydrocarbons, a gas stream containing unreacted hydrocarbon, carbon dioxide, and chlorinated hydrocarbon(s) is contacted with an acid gas absorption solution to absorb carbon dioxide, with the absorption solution being stripped of any absorbed chlorinated hydrocarbon, preferably by use of feed hydrocarbon as stripping gas, without stripping of carbon dioxide therefrom, to maintain the rich absorption solution introduced into the carbon dioxide stripper essentially free of absorbed chlorinated hydrocarbons.

    摘要翻译: 在氯化烃的生产中,将含有未反应的烃,二氧化碳和氯化烃的气流与酸性气体吸收溶液接触以吸收二氧化碳,吸收溶液被吸收到任何吸收的氯化烃,优选通过 使用原料碳氢化合物作为汽提气体,不从其中汽提二氧化碳,以保持引入二氧化碳汽提器的富集吸收溶液基本上不含吸收的氯代烃。

    Synthesis of prenyl chloride
    103.
    发明授权
    Synthesis of prenyl chloride 失效
    异戊烯氯的合成

    公开(公告)号:US4036899A

    公开(公告)日:1977-07-19

    申请号:US650813

    申请日:1976-01-20

    IPC分类号: C07C17/08 C07C21/00

    CPC分类号: C07C17/08

    摘要: Prenyl chloride (1-chloro-3-methylbutene-2) may be synthesized in increased yields by reacting isoprene with hydrochloric acid in the presence of sodium chloride. In addition, the yield may also be advantageously increased by utilizing a modified method of operation in which the distillation heads and tails fractions which are obtained from the process are recycled to the reaction zone.

    摘要翻译: 通过在氯化钠存在下使异戊二烯与盐酸反应,可以以增加的产率合成丙烯酰氯(1-氯-3-甲基丁烯-2)。 此外,还可以通过利用经过改进的操作方法来提高产量,其中将从该方法获得的蒸馏头和尾部馏分循环到反应区。

    Electrochemical synthesis of insecticide intermediates
    104.
    发明授权
    Electrochemical synthesis of insecticide intermediates 失效
    电化学合成杀虫剂中间体

    公开(公告)号:US4022672A

    公开(公告)日:1977-05-10

    申请号:US673038

    申请日:1976-04-02

    IPC分类号: C25B3/04 C07C21/00

    CPC分类号: C25B3/04

    摘要: 1,1,1-Trihalo-4-methylpentenes, carrying 2-substituents selected from those conjugate bases of Bronsted acids which are leaving groups in beta eliminations, are reduced electrochemically to 1,1-dihalo-4-methylpentadienes, intermediates in the synthesis of pyrethroid insecticides.

    摘要翻译: 携带2-取代基的1,1,1-三卤代-4-甲基戊烯,其在β去除中离开基团的布朗斯台德酸的共轭碱基中被选择性地还原成1,1-二卤代-4-甲基戊二烯,合成中的中间体 的拟除虫菊酯杀虫剂。

    Removal of HCl by distilling a vinyl chloride feed in solution with an
alcohol
    106.
    发明授权
    Removal of HCl by distilling a vinyl chloride feed in solution with an alcohol 失效
    通过用乙醇将溶液中的氯乙烯进料蒸馏除去HCl

    公开(公告)号:US3947508A

    公开(公告)日:1976-03-30

    申请号:US476051

    申请日:1974-06-03

    CPC分类号: C07C17/38

    摘要: Process for removing hydrochloric acid and other impurities which are contained in vinyl chloride monomer, by treatment in a distillation zone, comprising the addition to crude vinyl chloride, in the course of distillation thereof, of at least one alcohol selected from the group of C.sub.4 to C.sub.10 tertiary aliphatic alcohols and C.sub.3 to C.sub.10 primary or secondary alcohols with unsaturation in the alpha position, and rectifying the vinyl chloride monomer from the resulting mixture.

    摘要翻译: 通过在蒸馏区中处理除去氯乙烯单体中所含的盐酸和其它杂质的方法,包括在蒸馏过程中向粗氯乙烯中加入至少一种选自C4至 C10叔脂族醇和在α位置具有不饱和键的C3至C10伯或仲醇,并从所得混合物中精馏氯乙烯单体。

    Preparation of alcohols and ethers
    107.
    发明授权
    Preparation of alcohols and ethers 失效
    醇和醚的制备

    公开(公告)号:US3931238A

    公开(公告)日:1976-01-06

    申请号:US461570

    申请日:1974-04-17

    申请人: Charles M. Starks

    发明人: Charles M. Starks

    摘要: Alcohols and ethers are prepared by reacting a substituted hydrocarbon compound containing halogen or alkyl sulfate groups with an alkali metal hydroxide, in aqueous solution, in the presence of a catalytic amount of certain betaines and recovering from the reaction mixture the desired alcohol and/or ether. The reaction mixture can contain alcohols, ethers, and diethers, in varying amounts, depending on reactants and reaction conditions. Typical examples of materials used are: 1,4-dichlorobutane, sodium hydroxide, and tridodecylcarbomethoxymethyl ammonium bromide as the catalyst. The ethers are useful as solvents.

    摘要翻译: 醇和醚通过使含有卤素或烷基硫酸盐基团的取代烃化合物与碱金属氢氧化物在水溶液中在催化量的某些甜菜碱存在下反应制备,并从反应混合物中回收所需的醇和/或醚 。 反应混合物可以含有不同量的醇,醚和二醚,这取决于反应物和反应条件。 所用材料的典型例子有:1,4-二氯丁烷,氢氧化钠和十三烷基甲基甲基溴化铵作催化剂。 醚可用作溶剂。

    Two stage urea dewaxing process
    108.
    发明授权
    Two stage urea dewaxing process 失效
    两级尿素脱脂工艺

    公开(公告)号:US3847790A

    公开(公告)日:1974-11-12

    申请号:US27471472

    申请日:1972-07-24

    申请人: EDELEANU GMBH

    发明人: PUTZ J

    CPC分类号: C10G73/24

    摘要: A urea dewaxing process wherein normal paraffins are combined with aqueous urea solution in two, sequential, adduct-forming stages produces high purity normal paraffins. Employing fresh solvent washing of the adduct in both filtering steps permits the simultaneous production of low pour mineral oil and high purity normal paraffins.

    摘要翻译: 一种尿素脱蜡方法,其中将正构链烷烃与两个连续的加合物形成阶段的尿素水溶液结合,产生高纯度的正链烷烃。 在两个过滤步骤中使用加合物的新鲜溶剂洗涤允许同时生产低倾倒矿物油和高纯度正常链烷烃。

    Method for producing dichlorobutene
    110.
    发明授权
    Method for producing dichlorobutene 失效
    生产双歧杆菌的方法

    公开(公告)号:US3708548A

    公开(公告)日:1973-01-02

    申请号:US3708548D

    申请日:1969-11-26

    CPC分类号: C07C17/02 C07C21/09

    摘要: The method comprises the steps of reacting a gaseous mixture comprising butadiene and chlorine in at least a 2:1 molar ratio at a temperature from 150* to 280*C. in a first reaction zone wherein the gaseous reaction mixture is wholly agitated, and then in a second reaction zone wherein the gaseous reaction mixture is not significantly agitated.

    摘要翻译: 该方法包括以下步骤:在气态反应混合物完全搅动的第一反应区域中,使反应物中含有丁二烯和氯的气体混合物的摩尔比为至少2:1,温度为150-280℃,然后 在第二反应区,其中气态反应混合物没有被显着地搅动。