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DE69605918D1 - Salpetersäure-hydrolyse von polyamiden - Google Patents

Salpetersäure-hydrolyse von polyamiden

Info

Publication number
DE69605918D1
DE69605918D1 DE69605918T DE69605918T DE69605918D1 DE 69605918 D1 DE69605918 D1 DE 69605918D1 DE 69605918 T DE69605918 T DE 69605918T DE 69605918 T DE69605918 T DE 69605918T DE 69605918 D1 DE69605918 D1 DE 69605918D1
Authority
DE
Germany
Prior art keywords
polyamides
nitric acid
acid hydrolysis
hydrolysis
nitric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69605918T
Other languages
English (en)
Other versions
DE69605918T2 (de
Inventor
Darwin Davis
Eugene Wilhoit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Invista Technologies SARL USA
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE69605918D1 publication Critical patent/DE69605918D1/de
Application granted granted Critical
Publication of DE69605918T2 publication Critical patent/DE69605918T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69605918T 1995-06-22 1996-06-13 Salpetersäure-hydrolyse von polyamiden Expired - Lifetime DE69605918T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49383695A 1995-06-22 1995-06-22
PCT/US1996/010328 WO1997000846A1 (en) 1995-06-22 1996-06-13 Nitric acid hydrolysis of polyamides

Publications (2)

Publication Number Publication Date
DE69605918D1 true DE69605918D1 (de) 2000-02-03
DE69605918T2 DE69605918T2 (de) 2000-06-15

Family

ID=23961895

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69605918T Expired - Lifetime DE69605918T2 (de) 1995-06-22 1996-06-13 Salpetersäure-hydrolyse von polyamiden

Country Status (6)

Country Link
US (1) US5750791A (de)
EP (1) EP0833809B1 (de)
JP (1) JP3048644B2 (de)
CA (1) CA2225381C (de)
DE (1) DE69605918T2 (de)
WO (1) WO1997000846A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60107359T2 (de) 2000-09-29 2005-05-04 Mitsubishi Gas Chemical Co., Inc. Verfahren zur Herstellung von Polyamid
CN107056625B (zh) * 2017-06-07 2019-04-23 巢湖市鼎盛渔具有限公司 一种聚酰胺-66渔网废料的回收方法
EP3852923A1 (de) 2018-09-18 2021-07-28 INVISTA Textiles (U.K.) Limited Systeme und verfahren zur rückgewinnung von aminen und ihren derivaten aus wässrigen mischungen
US20240018092A1 (en) 2020-09-16 2024-01-18 Evonik Operations Gmbh Process for acid hydrolysis of pure polylaurolactam
DE102021203743A1 (de) 2021-04-15 2022-10-20 Evonik Functional Solutions Gmbh Verfahren zur Solvolyse von Polyamiden mit Alkalimetallalkoholaten
CN119421919A (zh) 2022-06-26 2025-02-11 索尔维特殊聚合物美国有限责任公司 用于在酸性条件下再循环聚酰胺的方法
JP7559982B2 (ja) * 2022-10-27 2024-10-02 東レ株式会社 ジアミンまたはジアミン組成物、ポリアミド、成形品、繊維、フィルム、またはシート、ジアミンおよび／またはジカルボン酸の製造方法、ジアミンおよび／またはジアミン組成物の製造方法およびポリアミドの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069465A (en) * 1959-09-09 1962-12-18 Du Pont Recovery of adipic acid and hexamethylene diamine from nylon
US3592854A (en) * 1968-07-19 1971-07-13 Armour Ind Chem Co Hydrolysis of amides to amines
FR2699168B1 (fr) * 1992-12-11 1995-01-13 Rhone Poulenc Chimie Procédé de traitement d'un matériau comprenant un polymère par hydrolyse.
DE4315623A1 (de) * 1993-05-11 1994-11-17 Hoechst Ag Verfahren zur Herstellung von Aminen
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials

Also Published As

Publication number Publication date
WO1997000846A1 (en) 1997-01-09
EP0833809B1 (de) 1999-12-29
CA2225381A1 (en) 1997-01-09
US5750791A (en) 1998-05-12
JPH10510295A (ja) 1998-10-06
JP3048644B2 (ja) 2000-06-05
DE69605918T2 (de) 2000-06-15
CA2225381C (en) 2000-09-05
EP0833809A1 (de) 1998-04-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: INVISTA TECHNOLOGIES S.A.R.L., WILMINGTON, DEL, US

8328 Change in the person/name/address of the agent

Representative=s name: MARKS & CLERK, LUXEMBOURG, LU