GB1165831A - Process for the Production of Isocyanates and Carbamyl Chlorides - Google Patents

Process for the Production of Isocyanates and Carbamyl Chlorides

Info

Publication number
GB1165831A
GB1165831A GB396167A GB396167A GB1165831A GB 1165831 A GB1165831 A GB 1165831A GB 396167 A GB396167 A GB 396167A GB 396167 A GB396167 A GB 396167A GB 1165831 A GB1165831 A GB 1165831A
Authority
GB
United Kingdom
Prior art keywords
reactor
isocyanates
isocyanate
carbamyl chlorides
jan
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
Application number
GB396167A
Inventor
David Dodman
Harry James Twitchett
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB396167A priority Critical patent/GB1165831A/en
Publication of GB1165831A publication Critical patent/GB1165831A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,165,831. Preparation of organic isocyanates and carbamyl chlorides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Jan., 1968 [26 Jan, 1967], No. 3961/67. Heading C2C. A process for the manufacture of organic isocyanates and carbamyl chlorides comprises reacting primary or secondary amines with phosgene in the vapour phase in a reactor provided with means for agitation of the vapours as they pass through the reactor, the process including a degassing stage when used for the manufacture of an isocyanate. Thus the reactor may be tubular and provided with a rapidly rotating shaft aligned centrally within, carrying blades, arms or sweeps which rotate about the central shaft. The amine vapour may be diluted with an inert gas e.g. nitrogen or with a vapourized inert solvent and the hot vapours emerging from the reactor, which is preferably at a temperature of from 160-300‹ C., are cooled by contact with a liquid cooling agent, preferably an inert organic solvent from which the isocyanate may subsequently be distilled. The preparation of p-tolyl isocyanate is described. A list of isocyanates prepared in this way is given.
GB396167A 1967-01-26 1967-01-26 Process for the Production of Isocyanates and Carbamyl Chlorides Expired GB1165831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB396167A GB1165831A (en) 1967-01-26 1967-01-26 Process for the Production of Isocyanates and Carbamyl Chlorides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB396167A GB1165831A (en) 1967-01-26 1967-01-26 Process for the Production of Isocyanates and Carbamyl Chlorides

Publications (1)

Publication Number Publication Date
GB1165831A true GB1165831A (en) 1969-10-01

Family

ID=9768155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB396167A Expired GB1165831A (en) 1967-01-26 1967-01-26 Process for the Production of Isocyanates and Carbamyl Chlorides

Country Status (1)

Country Link
GB (1) GB1165831A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289840A1 (en) * 1987-04-30 1988-11-09 Bayer Ag Process for the preparation of (cyclo)aliphatic diisocyanates
EP0593334A1 (en) * 1992-10-16 1994-04-20 Rhone-Poulenc Chimie Process for the preparation of aromatic isocyanate compounds in gazeous phase
EP1275640A1 (en) 2001-07-11 2003-01-15 Bayer Ag Process for the preparation of (cyclo)aliphatic isocyanates
WO2008037173A1 (en) 2006-09-28 2008-04-03 Ningbo Wanhua Polyurethanes Co., Ltd. A hole jet reactor and a process for the preparation of an isocyanate using the reactor
EP2199277A1 (en) * 2008-12-18 2010-06-23 Bayer MaterialScience AG Method for manufacturing isocyanates in the gaseous phase
WO2011003532A1 (en) 2009-07-09 2011-01-13 Bayer Materialscience Ag Method for producing isocyanates
WO2013139703A1 (en) 2012-03-19 2013-09-26 Bayer Intellectual Property Gmbh Method for producing isocyanates
WO2016042124A1 (en) 2014-09-19 2016-03-24 Covestro Deutschland Ag Method for producing isocyanates in the gas phase

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289840A1 (en) * 1987-04-30 1988-11-09 Bayer Ag Process for the preparation of (cyclo)aliphatic diisocyanates
US4847408A (en) * 1987-04-30 1989-07-11 Bayer Aktiengesellschaft Process for the preparation of (cyclo)aliphatic diisocyanates
EP0593334A1 (en) * 1992-10-16 1994-04-20 Rhone-Poulenc Chimie Process for the preparation of aromatic isocyanate compounds in gazeous phase
FR2697017A1 (en) * 1992-10-16 1994-04-22 Rhone Poulenc Chimie Process for the preparation of compounds of the aromatic isocyanate type in the gas phase.
US5391683A (en) * 1992-10-16 1995-02-21 Rhone-Poulenc Chimie Preparation of aromatic polyisocyanates
EP1275640A1 (en) 2001-07-11 2003-01-15 Bayer Ag Process for the preparation of (cyclo)aliphatic isocyanates
US6706913B2 (en) * 2001-07-11 2004-03-16 Bayer Aktiengesellschaft Process for preparing (cyclo)aliphatic isocyanates
AU2002300069B2 (en) * 2001-07-11 2008-04-10 Bayer Aktiengesellschaft Process for preparing (cyclo)aliphatic isocyanates
WO2008037173A1 (en) 2006-09-28 2008-04-03 Ningbo Wanhua Polyurethanes Co., Ltd. A hole jet reactor and a process for the preparation of an isocyanate using the reactor
US8333927B2 (en) 2006-09-28 2012-12-18 Ningbo Wanhua Polyurethanes Co., Ltd. Hole jet reactor and a process for the preparation of an isocyanate using the reactor
DE102008063728A1 (en) 2008-12-18 2010-06-24 Bayer Materialscience Ag Process for the preparation of isocyanates in the gas phase
EP2199277A1 (en) * 2008-12-18 2010-06-23 Bayer MaterialScience AG Method for manufacturing isocyanates in the gaseous phase
RU2528336C2 (en) * 2008-12-18 2014-09-10 Байер Матириальсайенс Аг Method of obtaining primary isocyanates
TWI464139B (en) * 2008-12-18 2014-12-11 Bayer Materialscience Ag Process for the preparation of isocyanates in the gas phase
WO2011003532A1 (en) 2009-07-09 2011-01-13 Bayer Materialscience Ag Method for producing isocyanates
DE102009032413A1 (en) 2009-07-09 2011-01-13 Bayer Materialscience Ag Process for the preparation of isocyanates
US8563768B2 (en) 2009-07-09 2013-10-22 Bayer Materialscience Ag Process for the preparation of isocyanates
WO2013139703A1 (en) 2012-03-19 2013-09-26 Bayer Intellectual Property Gmbh Method for producing isocyanates
US9593075B2 (en) 2012-03-19 2017-03-14 Covestro Deutschland Ag Method for producing isocyanates
US9695115B2 (en) 2012-03-19 2017-07-04 Covestro Deutschland Ag Method for producing isocyanates
WO2016042124A1 (en) 2014-09-19 2016-03-24 Covestro Deutschland Ag Method for producing isocyanates in the gas phase

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees