METHOD FOR MAKING CAPROLACTAM FROM IMPURE ACN IN WHICH THA IS NOT REMOVED UNTIL AFTER CAPROLACTAM IS PRODUCED
    23.
    发明申请
    METHOD FOR MAKING CAPROLACTAM FROM IMPURE ACN IN WHICH THA IS NOT REMOVED UNTIL AFTER CAPROLACTAM IS PRODUCED 失效
    在生产CAPROLACTAM之后,不能移除来自侵入ACN的CAPROLACTAM的方法

    公开(公告)号:US20040260087A1

    公开(公告)日:2004-12-23

    申请号:US10464104

    申请日:2003-06-17

    CPC classification number: C07D201/08

    Abstract: Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which the THA is not removed from the method until after the caprolactam is produced.

    Abstract translation: 从6-氨基己腈制备己内酰胺的方法,其含有大于500ppm的四氮氮平及其衍生物(THA),其中THA不从该方法中除去,直到己内酰胺生产。

    Method for the manufacture of caprolactam from waste containing polyamides
    24.
    发明申请
    Method for the manufacture of caprolactam from waste containing polyamides 失效
    从含有聚酰胺的废物制造己内酰胺的方法

    公开(公告)号:US20040024204A1

    公开(公告)日:2004-02-05

    申请号:US10457831

    申请日:2003-06-09

    CPC classification number: C07D201/12

    Abstract: This invention relates to a continuous and efficient method for the manufacture of highly pure caprolactam suitable for the polycondensation of Polyamide 6 (polycaprolactam) from polyamide waste. In particular the invention relates to a method for the manufacture of caprolactam from waste containing polyamides, including the steps a) depolymerisation of the waste containing polyamides, whereby a caprolactam raw material and a flow containing secondary constituents or additives is obtained, b) at least one distillation of the caprolactam raw material, and c) at least one crystallisation of the caprolactam material obtained in step b), by which means caprolactam is obtained, whereby at least part of the caprolactam obtained in step c) with a permanganate number of

    Abstract translation: 本发明涉及用于制备适用于聚酰胺废物聚酰胺6(聚己内酰胺)缩聚的高纯度己内酰胺的连续和有效的方法。 具体地说,本发明涉及一种从含有聚酰胺的废物中制造己内酰胺的方法,包括以下步骤:a)对含有废物的聚酰胺进行解聚,由此得到己内酰胺原料和含有二级成分或添加剂的流体,b)至少 己内酰胺原料的一次蒸馏,和c)步骤b)中获得的己内酰胺材料的至少一种结晶,通过该方法获得己内酰胺,由此至少部分步骤c)中获得的己内酰胺的高锰酸盐数目< 10000秒 并且在解聚之前和/或期间,将含有<85%的UV透射率加入到含废物的聚酰胺中。

    Epsilon caprolactam compositions
    26.
    发明授权
    Epsilon caprolactam compositions 失效
    Epsilon己内酰胺组合物

    公开(公告)号:US5925754A

    公开(公告)日:1999-07-20

    申请号:US956745

    申请日:1997-10-23

    Abstract: This invention relates to a composition comprising (a) epsilon caprolactam and (b) one or more of 5-�4,5-di(3-carboxypropyl)-2-pyridyl!pentanoic acid or salt or amide, 4-�4,5-di(2-carboxypropyl)-2-pyridyl!-2-methylbutanoic acid or salt or amide, 2-�2-(2-carboxybutyl)-5-(1-carboxypropyl)-4-pyridyl!butanoic acid or salt or amide, 5-�3,5-di(3-carboxypropyl)-2-pyridyl!pentanoic acid or salt or amide, 4-�3,5-di(2-carboxypropyl)-2-pyridyl!-2-methylbutanoic acid or salt or amide, 2-�-2-(2-carboxybutyl)-5-(1-carboxypropyl)-3-pyridyl!butanoic acid or salt or amide, 5-amino-4-methylpentanamide, 4-amino-3-ethylbutanamide, 5-�4,5-di(4-hydroxybutyl)-2-pyridyl!pentanol, 4-�4,5-di(2-methoxypropyl)-2-pyridyl!-2-methylbutanol, 2-�2-(2-methoxybutyl)-5-(1-methoxypropyl)-4-pyridyl!butanol, 5-�3,5-di(4-hydroxybutyl)-2-pyridyl!pentanol, 4-�3,5-di(2-methoxypropyl)-2-pyridyl!-2-methylbutanol, 2-�2-(2-methoxybutyl)-5-(1-methoxypropyl)-3-pyridyl!butanol, 5-amino-4-methyl-1-pentanol, 5-imino-2-methyl-1-pentanamine, 5-amino-2-methyl-1-pentanol, 5-imino-4-methyl-1-pentanamine and 2-butyl-4,5-dipropylpyridine, wherein the weight ratio of component (a) to component (b) is at least about 99 to 1. The epsilon caprolactam compositions are useful in the preparation of nylon 6.

    Abstract translation: 本发明涉及包含(a)ε-己内酰胺和(b)一种或多种5- [4,5-二(3-羧丙基)-2-吡啶基]戊酸或其盐或酰胺的组合物,4- [ 2-(2-羧基丙基)-2-吡啶基] -2-甲基丁酸或盐或酰胺,2- [2-(2-羧基丁基)-5-(1-羧基丙基)-4-吡啶基]丁酸或盐 或酰胺,5- [3,5-二(3-羧丙基)-2-吡啶基]戊酸或盐或酰胺,4- [3,5-二(2-羧丙基)-2-吡啶基] -2-甲基丁酸 酸或盐或酰胺,2- [ - 2-(2-羧丁基)-5-(1-羧基丙基)-3-吡啶基]丁酸或盐或酰胺,5-氨基-4-甲基戊酰胺,4-氨基-3 乙基丁酰胺,5- [4,5-二(4-羟丁基)-2-吡啶基]戊醇,4- [4,5-二(2-甲氧基丙基)-2-吡啶基] -2-甲基丁醇,2- [2 - (2-甲氧基丁基)-5-(1-甲氧基丙基)-4-吡啶基]丁醇,5- [3,5-二(4-羟基丁基)-2-吡啶基]戊醇,4- [3,5-二 2-甲氧基丙基)-2-吡啶基] -2-甲基丁醇,2- [2-(2-甲氧基丁基)-5-(1-甲氧基丙基)-3-吡啶基]丁醇,5-氨基-4-甲基-1-戊醇 ,5-亚氨基-2-甲基-1-戊酰胺 5-氨基-2-甲基-1-戊醇,5-亚氨基-4-甲基-1-戊胺和2-丁基-4,5-二丙基吡啶,其中组分(a)与组分(b)的重量比为 至少约99至1。ε-己内酰胺组合物可用于制备尼龙6。

    Diene cyclization using ruthenium and osmium carbene complexes
    27.
    发明授权
    Diene cyclization using ruthenium and osmium carbene complexes 失效
    使用钌和咔唑络合物进行二烯环化

    公开(公告)号:US5922863A

    公开(公告)日:1999-07-13

    申请号:US548915

    申请日:1995-10-26

    Abstract: Disclosed are ruthenium and osmium carbene compounds which are stable in the presence of a variety of functional groups and which can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins. Specifically, the present invention relates to carbene compounds of the formula ##STR1## wherein: M is Os or Ru; R and R.sup.1 are independently selected from hydrogen and functional groups C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkyl, aryl, C.sub.1 -C.sub.20 carboxylate, C.sub.2 -C.sub.20 alkoxy, C.sub.2 -C.sub.20 alkenyloxy, C.sub.2 -C.sub.20 alkynyloxy, aryloxy, C.sub.2 -C.sub.20 alkoxycarbonyl, C.sub.1 -C.sub.20 alkylthio, C.sub.1 -C.sub.20 alkylsulfonyl or C.sub.1 -C.sub.20 alkylsulfinyl; each optionally substituted with C.sub.1 -C.sub.5 alkyl, a halogen, C.sub.1 -C.sub.5 alkoxy or with a phenyl group optionally substituted with a halogen, C.sub.1 -C.sub.5 alkyl or C.sub.1 -C.sub.5 alkoxy; X and X.sup.1 are independently selected from any anionic ligand; and L and L.sup.1 are each trialkyl phosphine ligands where at least one of the alkyl groups on the phosphine is a secondary alkyl or a cycloalkyl. A broad array of metathesis reactions are enabled including ring-opening metathesis polymerization of cyclic olefins, ring closing metathesis of acyclic dienes, cross metathesis involving at least one acyclic or unstrained cyclic olefin, and depolymerization of unsaturated polymers.

    Abstract translation: 公开了在各种官能团存在下稳定的钌和咔咔啉化合物,其可用于在未应变的环状和无环烯烃上催化烯烃复分解反应。 具体地说,本发明涉及下式的卡宾化合物其中:M是Os或Ru; R和R 1独立地选自氢和官能团C 2 -C 20烯基,C 2 -C 20炔基,C 1 -C 20烷基,芳基,C 1 -C 20羧酸酯,C 2 -C 20烷氧基,C 2 -C 20链烯氧基,C 2 -C 20炔氧基,芳氧基, C 2 -C 20烷氧基羰基,C 1 -C 20烷硫基,C 1 -C 20烷基磺酰基或C 1 -C 20烷基亚磺酰基; 每个任选被C 1 -C 5烷基,卤素,C 1 -C 5烷氧基或任选被卤素,C 1 -C 5烷基或C 1 -C 5烷氧基取代的苯基取代; X和X 1独立地选自任何阴离子配体; L和L1各自为三烷基膦配体,其中膦上的至少一个烷基是仲烷基或环烷基。 复分解反应的范围广泛,包括环烯烃的开环易位聚合,无环二烯的闭环复分解,涉及至少一个无环或非应变的环烯烃的交叉复分解,以及不饱和聚合物的解聚。

    Integrated process for cyclohexanone oxime production
    29.
    发明授权
    Integrated process for cyclohexanone oxime production 失效
    环己酮肟生产的综合工艺

    公开(公告)号:US5599987A

    公开(公告)日:1997-02-04

    申请号:US414677

    申请日:1995-03-31

    CPC classification number: C07C249/04 Y02P20/125

    Abstract: An integrated process for producing cyclohexanone oxime, a caprolactam precursor, is provided wherein isopropanol is utilized to generate the hydrogen peroxide oxidizing agent. The acetone produced as a co-product is recycled back to the secondary alcohol by hydrogenation. Ammoximation of cyclohexanone is performed in the presence of water and an alcohol other than isopropanol such as methanol or t-butyl alcohol.

    Abstract translation: 提供了一种用于生产环己酮肟,己内酰胺前体的综合方法,其中使用异丙醇生成过氧化氢氧化剂。 作为副产物生产的丙酮通过氢化再循环回到仲醇中。 在水和除异丙醇之外的醇(如甲醇或叔丁醇)的存在下进行环己酮的接近。

    Preparation of lactams
    30.
    发明授权
    Preparation of lactams 失效
    内酰胺的制备

    公开(公告)号:US5493021A

    公开(公告)日:1996-02-20

    申请号:US360623

    申请日:1994-12-21

    CPC classification number: C07D201/08 Y02P20/52

    Abstract: Lactams, in particular epsilon-caprolactam (a basic starting material for the production of nylon 6), are selectively prepared by cyclizing/reacting the corresponding aminonitriles with water, in the presence of a catalytically effective amount of a deactivation-resistant solid metal phosphate having the general formula (II):MH.sub.h (PO.sub.4).sub.n .multidot.(Imp).sub.pin which M is a divalent, trivalent, tetravalent or pentavalent element selected from among those of Groups 2a, 3b, 4b, 5b, 6b, 7b, 8, 2b, 3a, 4a and 5a of the Periodic Table, or mixture thereof, or M=0; Imp is a basic impregnating compound which comprises an alkali or alkaline earth metal, or mixture thereof, together with an electrical neutrality-ensuing counteranion therefor; n is 1, 2 or 3; h is 0, 1 or 2; and p is a number ranging from 0 to 1/3, corresponding to the molar ratio between the moiety Imp and the moiety MH.sub.h (PO.sub.4).sub.n.

    Abstract translation: 特别是ε-己内酰胺(用于生产尼龙6的基本起始材料)的内酰胺可以通过在催化有效量的具有失活性的固体金属磷酸盐的存在下使相应的氨基腈与水环化/反应来选择性地制备, 通式(II):MHh(PO4)nx(Imp)p,其中M是选自组2a,3b,4b,5b,6b,7b,8,2b中的二价,三价,四价或五价元素 ,3a,4a和5a,或其混合物,或M = 0; Imp是包含碱金属或碱土金属或它们的混合物的基本浸渍化合物,以及随之而来的电中性的抗衡阴离子; n为1,2或3; h为0,1或2; p是0至1/3的数,对应于部分Imp与部分MHh(PO4)n之间的摩尔比。

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