AU4478672A - Chemical process - Google Patents

Chemical process

Info

Publication number
AU4478672A
AU4478672A AU44786/72A AU4478672A AU4478672A AU 4478672 A AU4478672 A AU 4478672A AU 44786/72 A AU44786/72 A AU 44786/72A AU 4478672 A AU4478672 A AU 4478672A AU 4478672 A AU4478672 A AU 4478672A
Authority
AU
Australia
Prior art keywords
chemical process
chemical
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
AU44786/72A
Inventor
PETER DAVIDI ROUGH and HARRY JAMES TWITCHETT ROBERT IAIN MACKAY COOPER
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
Publication of AU4478672A publication Critical patent/AU4478672A/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
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU44786/72A 1971-07-30 1972-07-20 Chemical process Expired AU4478672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3597571A GB1362708A (en) 1971-07-30 1971-07-30 Process for the purification of organic isocyanates

Publications (1)

Publication Number Publication Date
AU4478672A true AU4478672A (en) 1974-01-24

Family

ID=10383572

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44786/72A Expired AU4478672A (en) 1971-07-30 1972-07-20 Chemical process

Country Status (8)

Country Link
AR (1) AR192660A1 (en)
AU (1) AU4478672A (en)
BE (1) BE786596A (en)
DE (1) DE2237552A1 (en)
FR (1) FR2149148A5 (en)
GB (1) GB1362708A (en)
IT (1) IT972163B (en)
NL (1) NL7210432A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625742B1 (en) * 1988-01-13 1990-06-22 Rhone Poulenc Chimie PROCESS FOR SEPARATION OF TOLUENE DIISOCYANATE CONTAINED IN THE RESIDUES OF ITS MANUFACTURE
DE19914292A1 (en) 1999-03-30 2000-10-05 Bayer Ag Reduction of the chorine content of low molecular isocyanates comprises reaction with a tertiary or quaternary amine group containing anion exchanger for ten minutes at less than two hundred degrees
DE19914291A1 (en) 1999-03-30 2000-10-05 Bayer Ag Process for the purification of a low molecular isocyanate, comprises addition of an oligomeric organic polyphosphate compound and heating for ten minutes below two hundred degrees
DE19922572A1 (en) 1999-05-17 2000-11-23 Bayer Ag Process for the purification of organic isocyanates, the organic isocyanates thus purified and their use
DE10333929A1 (en) 2003-07-25 2005-02-24 Bayer Materialscience Ag Preparation of mixtures of di- and polyisocyanates of the diphenylmethane series with high contents of 4,4'-methylenediphenyl diisocyanate and 2,4'-methylenediphenyl diisocyanate
JP5700595B2 (en) 2012-01-25 2015-04-15 旭化成ケミカルズ株式会社 Separation method

Also Published As

Publication number Publication date
IT972163B (en) 1974-05-20
NL7210432A (en) 1973-02-01
BE786596A (en) 1973-01-22
AR192660A1 (en) 1973-02-28
DE2237552A1 (en) 1973-02-15
GB1362708A (en) 1974-08-07
FR2149148A5 (en) 1973-03-23

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