RU96113082A - METHOD OF OBTAINING CAPROLACTAM - Google Patents

METHOD OF OBTAINING CAPROLACTAM

Info

Publication number
RU96113082A
RU96113082A RU96113082/04A RU96113082A RU96113082A RU 96113082 A RU96113082 A RU 96113082A RU 96113082/04 A RU96113082/04 A RU 96113082/04A RU 96113082 A RU96113082 A RU 96113082A RU 96113082 A RU96113082 A RU 96113082A
Authority
RU
Russia
Prior art keywords
nitrile
water
acid
aminocarboxylic acid
paragraphs
Prior art date
Application number
RU96113082/04A
Other languages
Russian (ru)
Other versions
RU2119912C1 (en
Inventor
Фукс Эберхард
Витцель Том
Original Assignee
Басф Аг
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
Priority claimed from DE4339648A external-priority patent/DE4339648A1/en
Application filed by Басф Аг filed Critical Басф Аг
Publication of RU96113082A publication Critical patent/RU96113082A/en
Application granted granted Critical
Publication of RU2119912C1 publication Critical patent/RU2119912C1/en

Links

Claims (5)

1. Способ получения циклических лактамов путем взаимодействия нитрилов аминокарбоновой кислоты с водой в присутствии катализаторов, отличающийся тем, что реакцию осуществляют в жидкой фазе в присутствии гетерогенных катализаторов на основе двуокиси титана, окиси циркония, окиси церия и окиси алюминия.1. A method of obtaining cyclic lactams by reacting nitriles of aminocarboxylic acid with water in the presence of catalysts, characterized in that the reaction is carried out in the liquid phase in the presence of heterogeneous catalysts based on titanium dioxide, zirconium oxide, cerium oxide and aluminum oxide. 2. Способ по п.1, отличающийся тем, что реакцию проводят при температуре 140 - 320oC.2. The method according to claim 1, characterized in that the reaction is carried out at a temperature of 140 - 320 o C. 3. Способ по одному из п.п.1, 2, отличающийся тем, что используют нитрилы аминокарбоновой кислоты формулы
H2N-(CH2)m-C≡N,
где m - 3, 4, 5 или 6.3. The method according to one of paragraphs.1, 2, characterized in that use aminocarbonic acid nitriles of formula
H 2 N- (CH 2 ) m —C≡N,
where m is 3, 4, 5 or 6. 4. Способ по п.3, отличающийся тем, что в качестве нитрила аминокарбоновой кислоты используют нитрил 6-аминокапроновой кислоты. 4. The method according to p. 3, characterized in that the nitrile of 6-aminocaproic acid is used as the nitrile of aminocarboxylic acid. 5. Способ по одному из п.п.1 - 4, отличающийся тем, что используют 1 - 50%-ный по весу раствор нитрила аминокарбоновой кислоты в воде или смеси воды и органического растворителя. 5. The method according to one of paragraphs.1 to 4, characterized in that use 1 - 50% by weight solution of the nitrile of aminocarboxylic acid in water or a mixture of water and an organic solvent.
RU96113082A 1993-11-20 1994-11-15 Method of synthesis of cyclic lactams RU2119912C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP43.39648.8 1993-11-20
DE4339648A DE4339648A1 (en) 1993-11-20 1993-11-20 Process for the production of caprolactam
DEP4339648.8 1993-11-20

Publications (2)

Publication Number Publication Date
RU96113082A true RU96113082A (en) 1998-09-27
RU2119912C1 RU2119912C1 (en) 1998-10-10

Family

ID=6503070

Family Applications (2)

Application Number Title Priority Date Filing Date
RU96113079A RU2120437C1 (en) 1993-11-20 1994-11-15 Method of preparing cyclic lactams
RU96113082A RU2119912C1 (en) 1993-11-20 1994-11-15 Method of synthesis of cyclic lactams

Family Applications Before (1)

Application Number Title Priority Date Filing Date
RU96113079A RU2120437C1 (en) 1993-11-20 1994-11-15 Method of preparing cyclic lactams

Country Status (25)

Country Link
US (2) US5646277A (en)
EP (2) EP0729454B1 (en)
JP (2) JP4249257B2 (en)
KR (2) KR100310508B1 (en)
CN (2) CN1070476C (en)
AT (2) ATE178318T1 (en)
AU (2) AU678643B2 (en)
BR (2) BR9408099A (en)
CA (2) CA2176741C (en)
CZ (2) CZ284794B6 (en)
DE (3) DE4339648A1 (en)
DK (1) DK0729453T3 (en)
ES (2) ES2173162T3 (en)
FI (1) FI112651B (en)
HU (1) HU218503B (en)
MY (2) MY111913A (en)
NO (1) NO304594B1 (en)
NZ (1) NZ276096A (en)
PL (2) PL314527A1 (en)
PT (1) PT729453E (en)
RU (2) RU2120437C1 (en)
SG (2) SG47102A1 (en)
TW (1) TW382624B (en)
UA (2) UA41964C2 (en)
WO (2) WO1995014665A1 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443125A1 (en) * 1994-12-03 1996-06-05 Basf Ag Process for the production of caprolactam
DE19500041A1 (en) * 1995-01-03 1996-07-04 Basf Ag Process for the continuous purification of crude caprolactam made from 6-aminocapronitrile
FR2729949A1 (en) * 1995-01-27 1996-08-02 Rhone Poulenc Chimie LACTAM PREPARATION PROCESS
DE19517823A1 (en) * 1995-05-18 1996-11-21 Basf Ag Process for the production of caprolactam
DE19517821A1 (en) * 1995-05-18 1996-11-21 Basf Ag Process for the production of caprolactam
DE19518474A1 (en) * 1995-05-19 1996-11-21 Basf Ag Process for the preparation of carboxylic acid derivatives
FR2735471B1 (en) * 1995-06-16 1997-08-22 Rhone Poulenc Chimie LACTAM PREPARATION PROCESS
DE19623662A1 (en) * 1996-06-13 1997-12-18 Basf Ag Process for the purification of epsilon-caprolactam
DE19632006A1 (en) * 1996-08-08 1998-02-12 Bayer Ag Process for the preparation of lactams
US5877314A (en) * 1997-02-14 1999-03-02 Dsm N.V. Process to continuously prepare an aqueous mixture of episilon caprolactum and episilon caprolactum precursors
DE19718706A1 (en) * 1997-05-02 1998-11-05 Basf Ag Process for the preparation of cyclic lactams
DE19738464A1 (en) * 1997-09-03 1999-03-04 Basf Ag Use of moldings as a catalyst for the production of caprolactam
DE19738463C2 (en) * 1997-09-03 1999-09-23 Basf Ag Process for the production of caprolactam
WO1999011615A1 (en) * 1997-09-03 1999-03-11 Basf Aktiengesellschaft Mouldable materials which can be used as a catalyst
DE19804014A1 (en) 1998-02-02 1999-08-05 Basf Ag Batch process for the production of polyamides from aminonitriles
DE19804033A1 (en) 1998-02-02 1999-08-05 Basf Ag Continuous process for the production of polyamides from aminonitriles
DE19804023A1 (en) 1998-02-02 1999-08-05 Basf Ag Continuous process for the production of polyamides from aminonitriles
DE19808190A1 (en) * 1998-02-26 1999-09-02 Basf Ag Process for the production of polyamides
DE19808489A1 (en) 1998-02-27 1999-09-02 Basf Ag Process for the preparation of polymer mixtures from aminonitriles and thermoplastic polymers
DE19808490A1 (en) 1998-02-27 1999-09-02 Basf Ag Process for the preparation of polyamides from aminocarboxylic acid compounds
DE19811880A1 (en) * 1998-03-18 1999-09-23 Basf Ag Preparation of lactam by gas phase cyclizing hydrolysis of aminonitrile, useful e.g. as solvent and in polyamide production
US6346641B1 (en) 1998-07-20 2002-02-12 Basf Aktiengesellschaft Method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine
FR2781393B1 (en) * 1998-07-22 2000-08-25 Rhone Poulenc Fibres PROCESS FOR REGENERATION OF A CYCLISTING HYDROLYSIS CATALYST OF A LACTAM AMINONITRILE AND USE OF THE REGENERATED CATALYST FOR THE MANUFACTURE OF LACTAMS
FR2781796B1 (en) * 1998-07-28 2000-09-22 Rhone Poulenc Fibres LACTAM DEHYDRATION PROCESS
DE19839338A1 (en) 1998-08-28 2000-03-02 Basf Ag Improved process for the simultaneous production of 6-aminocapronitrile and hexamethylenediamine
DE19846014A1 (en) 1998-10-06 2000-04-13 Basf Ag Accelerator for the production of polyamides from aminonitriles
DE10021201A1 (en) 2000-05-03 2001-11-08 Basf Ag Process for the preparation of cyclic lactams
DE10021191A1 (en) * 2000-05-03 2001-11-08 Basf Ag Process for producing a polymer using caprolactam
MY127068A (en) * 2000-06-05 2006-11-30 Basf Ag Removal of ammonia from solutions including caprolactam and ammonia
DE10033518A1 (en) * 2000-07-11 2002-01-24 Basf Ag Process for the separation of ammonia from 2-phase reaction mixture obtained in amide preparation, involves separating phases and extracting organic phase with aqueous medium
US6437089B1 (en) 2001-06-01 2002-08-20 E. I. Du Pont De Nemours And Company Process for the production of nylon 6
DE102004027022A1 (en) * 2004-06-02 2006-01-05 Basf Ag Process for the separation of ammonia and water from lactam-containing mixtures
FR2944791B1 (en) * 2009-04-27 2012-02-10 Rhodia Operations PROCESS FOR THE PREPARATION OF LACTAMES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301964A (en) * 1941-09-12 1942-11-17 Du Pont Method of preparing lactams
JPS4821958B1 (en) * 1969-01-28 1973-07-02
EP0150295A3 (en) * 1983-12-19 1988-03-30 Allied Corporation Selective production of n-substituted amides by use of cu(o)/metallic oxides catalyst compositions
US4628085A (en) * 1985-09-03 1986-12-09 Allied Corporation Use of silica catalyst for selective production of lactams
US4625023A (en) * 1985-09-03 1986-11-25 Allied Corporation Selective conversion of aliphatic and aromatic aminonitriles and/or dinitriles into lactams

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