Obtaining caprolactam by cleavage of molten polycaprolactam
    1.
    发明授权
    Obtaining caprolactam by cleavage of molten polycaprolactam 失效
    通过熔融聚己内酰胺的裂解获得己内酰胺

    公开(公告)号:US5536831A

    公开(公告)日:1996-07-16

    申请号:US355285

    申请日:1994-12-12

    CPC分类号: C07D201/12

    摘要: Caprolactam is obtained from caprolactam-containing polymers in the presence of a base under reduced pressure by depolymerizing polymers which contain the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--] or mixtures consisting essentially offrom 50 to 99.99% by weight of a polymer containing the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]--from 0.01 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,in at least two depolymerization reactors connected in series.

    摘要翻译: 己内酰胺通过在碱存在下在减压下由含有重复单元 - [ - N(H) - (CH 2)5 -C(O) - ]的聚合物或基本上由 50至99.99重量%的含有重复单元的聚合物 - [ - N(H) - (CH 2)5 -C(O) - ] - 0.01至50重量%的选自无机填料 有机和无机颜料和染料,0至10重量%的有机和/或无机添加剂,0至40重量%的非聚酰胺聚合物和0至20重量%的聚酰胺,其中 在由至少两个解聚反应器串联连接的己内酰胺制备的聚己内酰胺和共聚酰胺的例外。

    Recovery of caprolactam from oligomers and/or polymers of caprolactam
    2.
    发明授权
    Recovery of caprolactam from oligomers and/or polymers of caprolactam 失效
    从己内酰胺的低聚物和/或聚合物回收己内酰胺

    公开(公告)号:US5360905A

    公开(公告)日:1994-11-01

    申请号:US60972

    申请日:1993-05-14

    CPC分类号: C07D201/12

    摘要: A process for recovering caprolactam from oligomers and/or polymers of caprolactam comprises the following steps:a) treating oligomers and/or polymers of caprolactam with from 1 to 20 parts by weight of water per part by weight of oligomer or polymer at from 200.degree. to 350.degree. C. under superatmospheric pressure with a residence time of from 0.5 to 10 hours to form an aqueous reaction mixture comprising polycaprolactam, monomeric caprolactam and oligomers thereof, andb) passing the aqueous reaction mixture obtained in a) into a fluidized bed of alumina at from 250.degree. to 400.degree. C. to obtain a mixture of steam and caprolactam.

    摘要翻译: 从己内酰胺的低聚物和/或聚合物中回收己内酰胺的方法包括以下步骤:a)在200℃下用每重量份低聚物或聚合物1至20重量份水处理己内酰胺的低聚物和/或聚合物 在超大气压下加热至350℃,停留时间为0.5至10小时,以形成包含聚己内酰胺,单体己内酰胺及其低聚物的含水反应混合物,和b)将a)中得到的含水反应混合物送入流化床 氧化铝在250-400℃下反应,得到蒸汽与己内酰胺的混合物。

    Obtaining caprolactam by cleavage of molten polycaprolactam
    3.
    发明授权
    Obtaining caprolactam by cleavage of molten polycaprolactam 失效
    通过熔融聚己内酰胺的裂解获得己内酰胺

    公开(公告)号:US5455346A

    公开(公告)日:1995-10-03

    申请号:US355283

    申请日:1994-12-12

    IPC分类号: C07D201/12

    CPC分类号: C07D201/12

    摘要: Caprolactam is obtained from mixtures which contain polymers or thermoplastic molding materials having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--(a) by cleavage at elevated temperatures in the presence of a base under reduced pressure or (b) in the presence of water, by using a mixture essentially comprisingfrom 50 to 99.9% by weight of a polymer or of a thermoplastic molding material having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--from 0.1 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,and carrying out the cleavage in the presence of a base under reduced pressure, the water content of the mixture used being not more than 0.01% by weight, or carrying out the cleavage in the presence of water without the addition of acid or base at from 270.degree. to 350.degree. C. and a weight ratio of water to polymer or thermoplastic molding material of from 1:1 to 20:1 and in a reaction time of less than 3 hours.

    摘要翻译: 己内酰胺由含有聚合物或具有重复单元-N(H) - (CH 2)5 -C(O) - (a)的聚合物或热塑性模塑材料的混合物获得,通过在碱的存在下在减压下在升高的温度下裂解,或 (B)在水的存在下,通过使用基本上包含50-99.9重量%的聚合物或具有重复单元-N(H) - (CH 2)5 -C(O)的热塑性模塑材料的混合物, - 0.1至50重量%的选自无机填料,有机和无机颜料和染料的添加剂,0至10重量%的有机和/或无机添加剂,0至40重量%的非 - 聚酰胺的聚合物和0〜20重量%的聚酰胺,但是由己内酰胺制备的聚己内酰胺和共聚酰胺除外,在减压下在碱的存在下进行裂解,所用混合物的水含量为 不大于0.01重量%,或进行切割 在没有在270-350℃下加入酸或碱的水存在下,水与聚合物或热塑性成型材料的重量比为1:1至20:1,反应时间小于 3小时。

    Recovery of caprolactam from polycaprolactam
    4.
    发明授权
    Recovery of caprolactam from polycaprolactam 失效
    从己内酰胺中回收己内酰胺

    公开(公告)号:US5359062A

    公开(公告)日:1994-10-25

    申请号:US54064

    申请日:1993-04-29

    IPC分类号: C07D201/12 C08G69/14

    CPC分类号: C07D201/12

    摘要: Caprolactam is recovered from polycaprolactam by hydrolyric cleavage of polycaprolactam with from 5 to 50 parts by weight of water per part by weight of polycaprolactam at from 200.degree. to 350.degree. C. under superatmospheric pressure to give an aqueous solution or suspension which contains monomeric caprolactam and oligomers thereof and may contain polycaprolactam and subsequent isolation of monomeric caprolactam from the aqueous solution or suspension by distillation or extraction, by a process in which the hydrolyric cleavage is carried out in the presence of an alkali metal hydroxide at a pH of from 5 to 10.

    摘要翻译: 己内酰胺通过在超大气压下在200-350℃下用5至50重量份的重量比的聚己内酰胺水解裂解聚己内酰胺从聚己内酰胺中回收,得到含有单体己内酰胺和 其低聚物并且可以含有聚己内酰胺并随后通过蒸馏或萃取从水溶液或悬浮液中分离单体己内酰胺,其中水解裂解在pH为5至10的碱金属氢氧化物存在下进行 。

    Preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine
    8.
    发明授权
    Preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine 失效
    3-氨基甲基-3,5,5-三甲基 - 环己胺的制备

    公开(公告)号:US5371292A

    公开(公告)日:1994-12-06

    申请号:US92029

    申请日:1993-07-15

    摘要: A process for the preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine from 3-cyano-3,5,5-trimethyl-cyclohexanone, wherein the following stages are carried out in discrete reaction chambers:a) the 3-cyano-3,5,5-trimethyl-cyclohexanone is reacted in a first reaction chamber with excess ammonia over an acidic metal oxide catalyst at a temperature of from 20.degree. to 150.degree. C. and a pressure of from 15 to 500 bar, andb) in a second reaction chamber, the reaction product from stage a) is hydrogenated with hydrogen at a temperature of from 60.degree. to 150.degree. C. and a pressure of from 50 to 300 bar in the presence of excess ammonia over a catalyst containing cobalt, nickel, ruthenium, and/or some other noble metal, which catalyst optionally contains a basic component or is supported by neutral or basic supporting material.

    摘要翻译: 从3-氰基-3,5,5-三甲基 - 环己酮制备3-氨基甲基-3,5,5-三甲基 - 环己胺的方法,其中以下步骤在离散反应室中进行:a)3 氰基-3,5,5-三甲基 - 环己酮在第一反应室中与过量的氨在酸性金属氧化物催化剂上在20至150℃的温度和15至500巴的压力下反应, 和b)在第二反应室中,在过量的氨在催化剂存在下,将氢气从60℃升至150℃,压力为50-300巴,在步骤a)中的反应产物被氢化 含有钴,镍,钌和/或一些其它贵金属,该催化剂任选地含有碱性组分或由中性或碱性载体材料负载。

    Reactive dyes with a triphendioxazine chromophore
    9.
    发明授权
    Reactive dyes with a triphendioxazine chromophore 失效
    与TRIPHENDIOXAZINE CHROMOPHORE的反应性染料

    公开(公告)号:US5194607A

    公开(公告)日:1993-03-16

    申请号:US722108

    申请日:1991-06-27

    摘要: Triphendioxazine dyes suitable for dyeing or printing hydroxyl- or amido-containing substrates have the formula ##STR1## where n is 0 or 1,m is 1 or 2,R.sup.1 and R.sup.2 are each independently of the other hydrogen, chlorine, bromine, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, substituted or unsubstituted phenyl or substituted or unsubstituted phenoxy,R.sup.3 is halogen, carboxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, vinylsulfonyl or the radical --SO.sub.2 --CH.sub.2 CH.sub.2 --Z, where Z is a leaving group, andQ.sup.1 and Q.sup.2 are each independently of the other a radical of the formula ##STR2## where R.sup.4 and R.sup.5 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.6 is hydrogen or a fiber-reactive radical,L.sup.1 and L.sup.2 are each independently of the other substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene or phenylene,X is a chemical bond, oxygen, sulfur, imino, C.sub.1 -C.sub.4 -alkylimino, carbonyl or methylene, andY is oxygen or sulfur,with the proviso that if n is 0, R.sup.6 is a fiber-reactive radical, and that the hydroxysulfonyl groups are each ortho to the substituents Q.sup.1 and Q.sup.2.

    摘要翻译: 适用于染色或印刷含羟基或酰胺基底物的三苯并二恶嗪染料具有式“IMAGE”,其中n为0或1,m为1或2,R 1和R 2各自独立地为氢,氯,溴,羟基磺酰基, C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,取代或未取代的苯基或取代或未取代的苯氧基,R 3是卤素,羧基,C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,乙烯基磺酰基或-SO 2 -CH 2 CH 2 - 其中Z是离去基团,并且Q 1和Q 2各自独立地为下式的基团:其中R 4和R 5各自独立地为氢,C 1 -C 4 - 烷基或苯基,R 6是氢或 纤维反应性基团L1和L2各自独立地为其它取代或未取代的C 2 -C 8亚烷基或亚苯基,X为化学键,氧,硫,亚氨基,C 1 -C 4烷基亚氨基,羰基或亚甲基,Y 是氧或硫,条件是如果n为0,则R6为纤维反应性基团,羟基磺酰基 s各自为取代基Q1和Q2的邻位。

    Preparation of caprolactam
    10.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号:US4963673A

    公开(公告)日:1990-10-16

    申请号:US448902

    申请日:1989-12-12

    IPC分类号: C07D201/08

    CPC分类号: C07D201/08

    摘要: Caprolactam is prepared by heating a 6-aminocaproic ester in liquid phase in the presence of water to 230.degree.-350.degree. C. under superatmospheric pressure in a reaction medium comprising a liquid aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is inert under reaction conditions, and isolating caprolactam from the reaction mixture.

    摘要翻译: 己内酰胺通过在含有沸点为80〜240℃的液体芳烃的反应介质的反应介质中,在高温大气压下,在水存在下,将液体中的6-氨基己酸酯加热到230〜 在反应条件下是惰性的,并从反应混合物中分离己内酰胺。