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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。
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公开(公告)号：WO1995033703A1
公开(公告)日：1995-12-14
申请号：PCT/US1995005081
申请日：1995-05-03
Applicant: ALLIEDSIGNAL INC.
Inventor： ALLIEDSIGNAL INC. , JENCZEWSKI, Theodore, John , CRESCENTINI, Lamberto , KWEEDER, James, Alphonse
IPC: C07C37/86
CPC classification number: C07C37/86 , C07C37/685 , C07C37/70 , Y02P20/52 , C07C39/04
Abstract: A process for the reduction of methylbenzofuran (MBF) impurities in phenol obtained from the decomposition product of cumene hydroperoxide requires treating the phenol to reduce the level of acetol, contacting the phenol containing a low level of acetol with an acid resin at sufficient temperature and residence time to reduce the level of MBF by conversion to higher boiling compounds, then distilling the phenol to separate phenol from higher boiling compounds. The phenol may be treated in known ways, such as by treatment with an amine, to reduce the level of acetol. The phenol containing a low level of acetol is contacted with a strong acid resin to reduce the level of MBF.
Abstract translation: 从氢过氧化枯烯的分解产物中还原苯酚中的甲基苯并呋喃（MBF）杂质的方法需要处理苯酚以降低丙酮醇的含量，使含有低水平丙酮醇的苯酚与酸树脂在足够的温度和室温下接触 时间通过转化为较高沸点化合物来降低MBF的水平，然后蒸馏苯酚从高沸点化合物分离苯酚。 苯酚可以以已知方式处理，例如通过用胺处理，以降低丙酮醇的含量。 含有低水平丙酮醇的苯酚与强酸树脂接触以降低MBF的含量。
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公开(公告)号：EP0764146A1
公开(公告)日：1997-03-26
申请号：EP95918294.0
申请日：1995-05-03
Applicant: AlliedSignal Inc.
CPC classification number: C07C37/86 , C07C37/685 , C07C37/70 , Y02P20/52 , C07C39/04
Abstract: A process for the reduction of methylbenzofuran (MBF) impurities in phenol obtained from the decomposition product of cumene hydroperoxide requires treating the phenol to reduce the level of acetol, contacting the phenol containing a low level of acetol with an acid resin at sufficient temperature and residence time to reduce the level of MBF by conversion to higher boiling compounds, then distilling the phenol to separate phenol from higher boiling compounds. The phenol may be treated in known ways, such as by treatment with an amine, to reduce the level of acetol. The phenol containing a low level of acetol is contacted with a strong acid resin to reduce the level of MBF.
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Patent Agency Ranking
公开(公告)号：EP0642487B1
公开(公告)日：1996-11-06
申请号：EP92919585.7
申请日：1992-08-28
Applicant: AlliedSignal Inc.
Inventor： CHAN, Chong, Hui , CRESCENTINI, Lamberto , HINTON, Everett, Hawthorne, Jr. , BALINT, Laszlo, Joseph
CPC classification number: C07C45/82 , C07C37/685 , C07C37/74 , Y10S203/20 , C07C49/78 , C07C39/04
Abstract: In a process for separating phenol obtained by the decomposition of cumene hydroperoxide from high boiling impurities, the improvement comprising: a) feeding phenol rectification bottoms comprising phenol, acetophenone, cumylphenol, alpha-methylstyrene dimers and high boiler residues to a first phenol freeing distillation column A; b) feeding concentrated bottoms with substantially reduced phenol content from column A to a second residue concentration distillation column B; c) withdrawing a stream rich in compounds boiling between phenol and residue, particularly cumylphenol, from said column B from a point below the feed and returning at least a portion of said stream to said column A at a point above the feed; d) recovering overheads from column A comprising at least 95 weight percent phenol; and e) recovering acetophenone-rich overheads from column B comprising at least 70 weight percent acetophenone.
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公开(公告)号：EP0642487A1
公开(公告)日：1995-03-15
申请号：EP92919585.0
申请日：1992-08-28
Applicant: AlliedSignal Inc.
CPC classification number: C07C45/82 , C07C37/685 , C07C37/74 , Y10S203/20 , C07C49/78 , C07C39/04
Abstract: In a process for separating phenol obtained by the decomposition of cumene hydroperoxide from high boiling impurities, the improvement comprising: a) feeding phenol rectification bottoms comprising phenol, acetophenone, cumylphenol, alpha-methylstyrene dimers and high boiler residues to a first phenol freeing distillation column A; b) feeding concentrated bottoms with substantially reduced phenol content from column A to a second residue concentration distillation column B; c) withdrawing a stream rich in compounds boiling between phenol and residue, particularly cumylphenol, from said column B from a point below the feed and returning at least a portion of said stream to said column A at a point above the feed; d) recovering overheads from column A comprising at least 95 weight percent phenol; and e) recovering acetophenone-rich overheads from column B comprising at least 70 weight percent acetophenone.
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6.发明公开A PROCESS FOR THE PURIFICATION OF CAPROLACTAM OBTAINED FROM THE DEPOLYMERIZATION OF POLYAMIDE-CONTAINING CARPET 有权清洁方法解聚POLYMIDHALTIGER地板得到的己内酰胺
公开(公告)号：EP1042284A1
公开(公告)日：2000-10-11
申请号：EP98941129.3
申请日：1998-09-02
Applicant: AlliedSignal Inc.
IPC: C07D201/12
CPC classification number: C07D201/12
Abstract: The present invention provides a process for the preparation of purified caprolactam comprising the steps of: (a) depolymerizing polyamide-containing carpet in the presence of steam to obtain crude caprolactam and steam; (b) removing substantially all of said water from said crude caprolactam and steam; (c) distilling the resulting concentrated crude caprolactam at a pressure of less than about 8 mmHg and a temperature from about 110 °C to about 145 °C so as to form overheads and bottoms of the caprolactam; and (d) crystallizing the caprolactam overheads to obtain caprolactam crystals and mother liquor. The resulting purified caprolactam may then be used to make polycaprolactam which may then be used in engineered materials or spun into fiber.
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公开(公告)号：EP0850219A1
公开(公告)日：1998-07-01
申请号：EP96926887.0
申请日：1996-08-05
Applicant: AlliedSignal Inc.
IPC: C07D201
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.
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8.发明授权A PROCESS FOR THE PURIFICATION OF CAPROLACTAM OBTAINED FROM THE DEPOLYMERIZATION OF POLYAMIDE-CONTAINING CARPET 有权清洁方法解聚POLYMIDHALTIGER地板得到的己内酰胺
公开(公告)号：EP1042284B1
公开(公告)日：2007-08-01
申请号：EP98941129.3
申请日：1998-09-02
Applicant: AlliedSignal Inc.
IPC: C07D201/12
CPC classification number: C07D201/12
Abstract: The present invention provides a process for the preparation of purified caprolactam comprising the steps of: (a) depolymerizing polyamide-containing carpet in the presence of steam to obtain crude caprolactam and steam; (b) removing substantially all of said water from said crude caprolactam and steam; (c) distilling the resulting concentrated crude caprolactam at a pressure of less than about 8 mmHg and a temperature from about 110 °C to about 145 °C so as to form overheads and bottoms of the caprolactam; and (d) crystallizing the caprolactam overheads to obtain caprolactam crystals and mother liquor. The resulting purified caprolactam may then be used to make polycaprolactam which may then be used in engineered materials or spun into fiber.
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