Process for recovering ethyleneamines
    73.
    发明授权
    Process for recovering ethyleneamines 失效
    回收乙烯胺的方法

    公开(公告)号:US4582937A

    公开(公告)日:1986-04-15

    申请号:US722422

    申请日:1985-04-12

    CPC分类号: C07C209/86

    摘要: Ethyleneamines are efficiently recovered from an aqueous solution thereof by extracting them from the aqueous solution into an organic phase with an extractant selected from carbonyl group-containing organic solvents, benzyl alcohol, carboxylic acids and salts thereof, alkylphosphoric acids and salts thereof, and mixed solvents containing at least one of these extractants. The ethyleneamines in the organic phase is recovered preferably from the organic phase to the aqueous phase by incorporating an acid therein, followed by phase separation.

    摘要翻译: 从选自含羰基的有机溶剂,苄醇,羧酸及其盐的提取剂,烷基磷酸及其盐和混合溶剂中将其从水溶液中提取出来,可以有效地从其水溶液中回收乙烯胺 含有这些萃取剂中的至少一种。 通过在其中加入酸,然后进行相分离,有机相中的亚乙基胺优选从有机相回收到水相中。

    Method of purifying cyclohexanone containing by-product organic acids
    74.
    发明授权
    Method of purifying cyclohexanone containing by-product organic acids 失效
    环己酮含有副产物有机酸的纯化方法

    公开(公告)号:US4562295A

    公开(公告)日:1985-12-31

    申请号:US637591

    申请日:1984-08-03

    申请人: Shigeo Miyata

    发明人: Shigeo Miyata

    摘要: A method for purifying cyclohexanone containing by-product organic acids and obtained by oxidation of cyclohexane, which comprises contacting said cyclohexanone with at least one treating agent selected from the group consisting of hydrotalcite compounds of the following formula (1)M.sub.x.sup.2+ M.sub.2.sup.3+ (OH).sub.2x+6-nz (A.sup.n-).sub.z.mH.sub.2 O (1)wherein M.sup.2+ represents a divalent metal ion, M.sup.3+ represents a trivalent metal ion, A.sup.n- represents an anion having a valence of n, and x, z and m represent numbers satisfying the following expressions1

    摘要翻译: 一种用于纯化环己酮的副产物有机酸并通过环己烷氧化得到的方法,该方法包括使所述环己酮与至少一种选自下式(1)的水滑石化合物Mx2 + M23 +(OH) 2x + 6-nz(An-)z.mH2O(1)其中M2 +表示二价金属离子,M3 +表示三价金属离子,An-表示n价的阴离子,x,z和m表示满足 以下表达式1 20和下式(2)的金属氧化物型固溶体M1-x'2 + Mx'3 + O1 + 1 / 2x'(2)其中M2 +和M3 +如关于式(1)所定义,x'是由0

    Process for the production of dimedone
    76.
    发明授权
    Process for the production of dimedone 失效
    生产二甲酮的方法

    公开(公告)号:US4414418A

    公开(公告)日:1983-11-08

    申请号:US379718

    申请日:1982-05-19

    申请人: Pavel Lehky

    发明人: Pavel Lehky

    CPC分类号: C07C45/455

    摘要: Process for the production of dimedone from isophorone. The isophorone is converted in the presence of a solvent with ozone into an ozone-addition product. An alcohol corresponding to the ester radical is added at the latest after the formation of the ozone-addition product for the formation of the intermediate product, 3,3-dimethyl-5-oxo-hexanoic acid ester. The ozone addition product is heated in the presence of acids to a temperature of 20.degree. to 150.degree. C. The 3,3-dimethyl-5-oxo-hexanoic acid ester is isolated thereby. The ester is then converted in a further step into dimedone by treatment of the ester with an alkali alcoholate in an anhydrous milieu.

    摘要翻译: 用于从异佛尔酮生产dimedone的方法。 将异佛尔酮在溶剂与臭氧存在下转化成臭氧添加产物。 在形成中间产物3,3-二甲基-5-氧代 - 己酸酯的臭氧添加产物形成后,最后加入对应于酯基的醇。 臭氧加成产物在酸的存在下加热至20至150℃。由此分离出3,3-二甲基-5-氧代 - 己酸酯。 然后通过在无水环境中用碱醇化物处理酯,将酯再次转化成二酮。

    Process for separating 11-cyanoundecanoic acid, cyclohexanone and .epsilon.
-
    79.
    发明授权
    Process for separating 11-cyanoundecanoic acid, cyclohexanone and .epsilon. - 失效
    分离11-氰基十一烷酸,环己酮和{68-己内酰胺的方法

    公开(公告)号:US4165328A

    公开(公告)日:1979-08-21

    申请号:US901089

    申请日:1978-04-28

    摘要: Disclosed is a process for separating 11-cyanoundecanoic acid, cyclohexanone and .epsilon.-caprolactam from a pyrolysis product obtained by pyrolyzing 1,1'-peroxydicyclohexylamine in the presence of steam at a temperature of 300.degree. to 1,000.degree. C. The pyrolysis product is first contacted with a mixture comprised of aqueous ammonia and at least one organic solvent selected from benzene, toluene and xylene, and the so prepared liquid is separated into the oily layer and the aqueous layer. On one hand, the oily layer is distilled to separate cyclohexanone therefrom. On the other hand, the aqueous layer is acidified to a pH of below 4.0 by adding thereto a mineral acid and maintained at a temperature of 40.degree. to 100.degree. C. to separate crude 11-cyanoundecanoic acid in molten form from the aqueous layer, and then, the separated crude molten 11-cyanoundecanoic acid is washed with hot water to extract .epsilon.-caprolactam therefrom.

    摘要翻译: 公开了一种通过在300℃至1000℃的温度下在1,1'-二氧化二环己基胺蒸气存在下热解得到的热解产物中分离出11-氰基十一烷酸,环己酮和ε-己内酰胺的方法。热解产物是先 与由氨水和选自苯,甲苯和二甲苯中的至少一种有机溶剂组成的混合物接触,将如此制备的液体分离成油层和水层。 一方面,将油层蒸馏以分离出环己酮。 另一方面,通过向其中加入无机酸将水层酸化至pH值低于4.0,并保持在40℃至100℃的温度下,将熔融形式的粗的11-氰基十一烷酸与水层分离, 然后,将分离的粗熔融的11-氰基十一烷酸用热水洗涤以从其中提取ε-己内酰胺。