公开(公告)号：WO1997006137A1

公开(公告)日：1997-02-20

申请号：PCT/US1996012705

申请日：1996-08-05

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  JENCZEWSKI, Theodore, John ,  CRESCENTINI, Lamberto ,  MAYER, Richard, Eugene

IPC: C07D201/12

CPC classification number: C07D201/12

Abstract: A process for recovering monomer from multi-component waste material that includes a hydrolyzable polymer, includes contacting the multi-component waste material with water and subjecting the resulting mixture to heat and pressure to form a liquid aqueous portion and a water insoluble portion. The liquid aqueous portion mainly includes depolymerization products of the hydrolyzable polymer, and the water insoluble portion mainly includes components other than the depolymerization products. This mixture is cooled and the liquid aqueous portion and the water insoluble portion are separated. Monomer that formed the hydrolyzable polymer is recovered from the liquid aqueous solution.

Abstract translation: 一种从包含可水解聚合物的多组分废料中回收单体的方法，包括使多组分废料与水接触并对所得混合物进行加热和压力以形成液体水性部分和不溶于水的部分。 液体水性部分主要包括可水解聚合物的解聚产物，水不溶部分主要包括解聚产物以外的成分。 将该混合物冷却，分离液体水性部分和水不溶性部分。 形成可水解聚合物的单体从液体水溶液中回收。

公开(公告)号：WO1997003048A1

公开(公告)日：1997-01-30

申请号：PCT/NL1996000283

申请日：1996-07-11

Applicant: DSM N.V. ,  FRENTZEN, Yvonne, Helene ,  THIJERT, Marcellinus, Plechelmus, Gerhardus ,  ZWART, Rudolf, Lambertus

Inventor： DSM N.V.

IPC: C07D201/12

CPC classification number: C07D201/12

Abstract: A process for depolymerizing nylon (6) and recovering caprolactam from the depolymerized products by extraction with alkyl phenolic compounds. Process steps include (a) treating a first mixture comprising nylon (6) with water at a temperature between about 200 DEG C and about 400 DEG C to yield a second mixture comprising depolymerized nylon (6) components, wherein the second mixture contains caprolactam at a concentration between about 5 wt.% and about 35 wt.%; (b) optionally, separating insoluble material from the second mixture; (c) extracting the second mixture with an extraction agent to yield an aqueous raffinate third mixture and an organic phase fourth mixture comprising caprolactam and the extraction agent, wherein the extraction agent is an alkyl phenol having a boiling point higher than that of the caprolactam; (d) recovering caprolactam from the organic phase fourth mixture by distillation; (e) recycling the aqueous raffinate third mixture to step (a).

Abstract translation: 通过用烷基酚类化合物提取，解聚尼龙（6）和从解聚产物中回收己内酰胺的方法。 工艺步骤包括（a）在约200℃至约400℃之间的温度下处理包含尼龙（6）的第一混合物与水，以产生包含解聚尼龙（6）组分的第二混合物，其中第二混合物含有己内酰胺 约5重量％至约35重量％的浓度; （b）任选地，从第二混合物中分离不溶物质; （c）用萃取剂萃取第二混合物，得到含水萃余液第三混合物和含己内酰胺和提取剂的有机相第四混合物，其中提取剂是沸点高于己内酰胺的沸点的烷基苯酚; （d）通过蒸馏从有机相第四混合物中回收己内酰胺; （e）将含水萃余液第三混合物再循环到步骤（a）。

公开(公告)号：WO1994008942A1

公开(公告)日：1994-04-28

申请号：PCT/US1993009543

申请日：1993-10-13

Applicant: E. I. DU PONT DE NEMOURS AND COMPANY

Inventor： E. I. DU PONT DE NEMOURS AND COMPANY ,  MORAN, Edward, Francis, Jr.

IPC: C07C209/62

CPC classification number: C07D201/12 ,  C07C209/62

Abstract: A process is disclosed for simultaneously depolymerizing nylon 6 and 6,6 and reclaiming the monomer values by steam distillation, in the presence of a basic nylon depolymerizing catalyst.

Abstract translation: 公开了一种在碱性尼龙解聚催化剂存在下同时解聚尼龙6和6,6并通过蒸汽蒸馏回收单体值的方法。

公开(公告)号：TWI349662B

公开(公告)日：2011-10-01

申请号：TW097122056

申请日：2008-06-13

Applicant: 中國石油化學工業開發股份有限公司

Inventor： 李建憲

IPC: C07D ,  B01J

CPC classification number: C07D201/16 ,  C07D201/12

Abstract: 一種自重排混合物中回收己內醯胺之系統與方法，該系統包含中和單元；用以接收由該中和單元饋入之雜質含量低於標準值之粗醯胺溶液的緩衝單元；用以接收由該中和單元饋入之雜質含量高於標準值之粗醯胺溶液的暫存單元；用以進行批次式萃取並分離出第一醯胺溶液的暫時萃取單元；用以進行連續式萃取並分離出第二醯胺溶液的萃取單元；以及用以回收己內醯胺的回收單元。該系統係先根據粗醯胺溶液之品質分別將粗醯胺溶液饋入萃取單元進行連續式萃取或饋入暫時萃取單元進行批次式萃取，藉以維持製程之連續性操作，提高分離效率，減少原物料損耗，同時降低後續純化步驟之負荷。

Abstract in simplified Chinese: 一种自重排混合物中回收己内酰胺之系统与方法，该系统包含中和单元；用以接收由该中和单元馈入之杂质含量低于标准值之粗酰胺溶液的缓冲单元；用以接收由该中和单元馈入之杂质含量高于标准值之粗酰胺溶液的暂存单元；用以进行批次式萃取并分离出第一酰胺溶液的暂时萃取单元；用以进行连续式萃取并分离出第二酰胺溶液的萃取单元；以及用以回收己内酰胺的回收单元。该系统系先根据粗酰胺溶液之品质分别将粗酰胺溶液馈入萃取单元进行连续式萃取或馈入暂时萃取单元进行批次式萃取，借以维持制程之连续性操作，提高分离效率，减少原物料损耗，同时降低后续纯化步骤之负荷。

公开(公告)号：EP0874817B2

公开(公告)日：2015-12-02

申请号：EP96943716.9

申请日：1996-12-06

Applicant: AlliedSignal Inc. ,  Koninklijke DSM N.V.

Inventor： SIFNIADES, Stylianos ,  LEVY, Alan, Bart ,  HENDRIX, Jan, Agnes, Jozef

IPC: C07D201/12

CPC classification number: C07D201/12

公开(公告)号：EP1242369B1

公开(公告)日：2007-02-14

申请号：EP00993254.2

申请日：2000-12-01

Applicant: DSM IP Assets B.V.

Inventor： COURAGE, Antonius, Johannes, Franciscus, Marie ,  HOUBEN, Marco, Johan, Arnold ,  MERTENS, Mathieu, Hubertus, Marie ,  RAETS, Leonardus, Joseph, Gerardus

IPC: C07D201/12

CPC classification number: B03B9/061 ,  B03B2009/067 ,  B29B17/02 ,  B29B17/0412 ,  B29B2017/0224 ,  B29B2017/0241 ,  B29B2017/044 ,  B29B2017/0476 ,  B29B2017/0488 ,  B29K2077/00 ,  B29K2105/12 ,  B29L2031/7322 ,  C07D201/12 ,  C07D223/10 ,  Y02W30/521 ,  Y02W30/523 ,  Y02W30/525 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/667 ,  Y10T83/0467

Abstract: The invention relates to a process for recovering monomeric units of a nylon from carpet material, said carpet material comprising fibres containing said nylon bound to a backing containing one or more non-nylon components, the carpet material containing between 15 and 35 wt.% of said nylon, which process comprises the steps of: a) mechanically separating the carpet material into an enriched carpet mixture containing between 35 and 55 wt.% of said nylon and into a depleted carpet mixture having a lower content of said nylon than the carpet material; b) exposing the enriched carpet mixture to conditions at which depolymerisation of said nylon is effected.

公开(公告)号：EP0912508B1

公开(公告)日：2002-01-16

申请号：EP97935513.8

申请日：1997-07-07

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： RITZ, Josef ,  ACHHAMMER, Günther ,  FISCHER, Rolf ,  FUCHS, Eberhard ,  VOIT, Guido

IPC: C07D201/08 ,  C07D201/12 ,  C07D201/16

CPC classification number: C07D201/12 ,  C07D201/08

Abstract: The invention concerns the preparation of caprolactam by cyclizing 6-aminocapronitrile in the presence of water at high temperature and optionally of a catalyst and a solvent by: a) separating from the reaction yield ('reaction yield I') of the cyclizing process caprolactam and all the components boiling higher than caprolactam ('high boilers'); b) treating the high boilers from step a) with phosphoric acid and/or polyphosphoric acid at a temperature ranging from 200 to 350 °C, obtaining reaction yield II; and c) separating the caprolactam resulting from reaction yield II of step b) and optionally 6-aminocapronitrile from unreacted 'high boilers' and the acid used.

公开(公告)号：EP1154995A2

公开(公告)日：2001-11-21

申请号：EP00905450.3

申请日：2000-02-09

Applicant: DSM N.V.

Inventor： CHENG, Peter, Wei-Hae ,  HENDRIX, Jan, Agnes, Jozef ,  RAETS, Leonardus, Joseph, Gerardus

IPC: C07D201/16 ,  C07D201/12 ,  C08J11/14

CPC classification number: C07D201/12 ,  C07D201/16

Abstract: The present invention relates to a process for purifying an impure stream of caprolactam while recovering not only pure caprolactam but also medium-to-high pressure steam. Preferably, the stream of impure or crude caprolactam which comprises at a minimum a substantial portion of water, is obtained from depolymerization of a polyamide-containing composition. The resulting purified caprolactam will have a purity greater than 90 weight percent and the recovered steam will have a temperature sufficiently high to provide a driving force for use with other equipment, for instance, heat exchange equipment.

公开(公告)号：EP1122241A1

公开(公告)日：2001-08-08

申请号：EP00200365.5

申请日：2000-02-03

Applicant: DSM N.V.

Inventor： Agterberg, Frank Petrus Willibrord ,  Guit, Rudolf Philippus Maria ,  Offermans, Matthias Robert Jozef

IPC: C07D201/08 ,  C07D201/12

CPC classification number: C07D201/08 ,  C07D201/12

Abstract: A process for the preparation of ε-caprolactam starting from 6-aminocaproic acid, 6-aminocaproamide, 6-aminocaproic ester, 6-aminocapronitrile, oligomers or polymers of these compounds or mixtures comprising at least two of these compounds, which process is performed in the presence of N-(5-carboxypentyl)-ε-caprolactam and/or derivative thereof in an amount of less than 50 wt.% and more than 0.1 wt.% (based on the total reaction mixture).

Abstract translation: 从6-氨基己酸，6-氨基己酰胺，6-氨基己酸酯，6-氨基己腈，这些化合物的低聚物或聚合物或包含这些化合物中的至少两种的混合物制备ε-己内酰胺的方法，该方法在 N-（5-羧戊基） - ε-己内酰胺和/或其衍生物的存在量小于50重量％且大于0.1重量％（基于总反应混合物）。

公开(公告)号：EP1104753A1

公开(公告)日：2001-06-06

申请号：EP99204107.9

申请日：1999-12-03

Applicant: DSM N.V.

Inventor： Courage, Antonius Johannes Franciscus Maria ,  Houben, Marco Johan Arnold ,  Mertens, Mathieu Hubertus Marie ,  Raets, Leonardus Joseph Gerardus

IPC: C07D201/12 ,  C08J11/14

CPC classification number: B03B9/061 ,  B03B2009/067 ,  B29B17/02 ,  B29B17/0412 ,  B29B2017/0224 ,  B29B2017/0241 ,  B29B2017/044 ,  B29B2017/0476 ,  B29B2017/0488 ,  B29K2077/00 ,  B29K2105/12 ,  B29L2031/7322 ,  C07D201/12 ,  C07D223/10 ,  Y02W30/521 ,  Y02W30/523 ,  Y02W30/525 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/667 ,  Y10T83/0467

Abstract: The invention relates to a process for recovering monomeric units of a nylon from whole carpet comprised of fibres comprised of said nylon and a backing comprised of non-nylon components, which fibres are bound to the backing, the whole carpet containing between 15 and 35 wt.% of said nylon, which process comprises the steps of

a) mechanically separating the whole carpet into a beneficiated carpet mixture which contains between 35 and 55 wt.% of said nylon and into a depleted carpet mixture
b) exposing the beneficiated carpet mixture to conditions at which depolymerization of said nylon is effected.

Abstract translation: 本发明涉及一种用于从整个地毯中回收尼龙单体单元的方法，所述单体单元由包含所述尼龙的纤维和由非尼龙组分构成的背衬组成，所述背衬与所述背衬结合，所述整个地毯含有15至35重量％ 所述尼龙的％，该方法包括以下步骤：a）将整个地毯机械分离成含有35至55重量％的所述尼龙并且变成贫化的地毯混合物的精选的地毯混合物; b）将选定的地毯混合物暴露于 进行所述尼龙解聚的条件。