IT1097592B - Procedimento per la preparazione di isocianati da formammidi - Google Patents

Procedimento per la preparazione di isocianati da formammidi

Info

Publication number
IT1097592B
IT1097592B IT26324/78A IT2632478A IT1097592B IT 1097592 B IT1097592 B IT 1097592B IT 26324/78 A IT26324/78 A IT 26324/78A IT 2632478 A IT2632478 A IT 2632478A IT 1097592 B IT1097592 B IT 1097592B
Authority
IT
Italy
Prior art keywords
formammides
isocyanates
procedure
preparation
Prior art date
Application number
IT26324/78A
Other languages
English (en)
Other versions
IT7826324A0 (it
Original Assignee
Akzo Nv
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 Akzo Nv filed Critical Akzo Nv
Publication of IT7826324A0 publication Critical patent/IT7826324A0/it
Application granted granted Critical
Publication of IT1097592B publication Critical patent/IT1097592B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/72—Copper
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
IT26324/78A 1977-08-02 1978-07-31 Procedimento per la preparazione di isocianati da formammidi IT1097592B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7708510 1977-08-02

Publications (2)

Publication Number Publication Date
IT7826324A0 IT7826324A0 (it) 1978-07-31
IT1097592B true IT1097592B (it) 1985-08-31

Family

ID=19828957

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26324/78A IT1097592B (it) 1977-08-02 1978-07-31 Procedimento per la preparazione di isocianati da formammidi

Country Status (6)

Country Link
US (1) US4207251A (it)
EP (1) EP0000602B1 (it)
JP (1) JPS5439018A (it)
CA (1) CA1117962A (it)
DE (1) DE2860856D1 (it)
IT (1) IT1097592B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430262A (en) * 1981-06-05 1984-02-07 Shell Oil Company Preparation of isocyanates and/or derivatives thereof
DE3229323A1 (de) * 1982-08-06 1984-02-09 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung aliphatischer isocyanate durch oxidative dehydrierung von formamiden
US4469640A (en) * 1983-03-14 1984-09-04 E. I. Du Pont De Nemours And Company Catalytic conversion of formamides to isocyanates
US4824991A (en) * 1984-08-09 1989-04-25 E. I. Du Pont De Nemours And Company Process for separating methyl isocyanate
US4694101A (en) * 1984-08-09 1987-09-15 E. I. Du Pont De Nemours And Company Process for separating methyl isocyanate
US4537726A (en) * 1984-11-09 1985-08-27 E. I. Du Pont De Nemours And Company Multi-stage process with adiabatic reactors for the preparation of isocyanates
US4698438A (en) * 1985-04-26 1987-10-06 E. I. Du Pont De Nemours And Company Process for the preparation of methyl carbamates and thioimidates
US4603016A (en) * 1985-11-14 1986-07-29 E. I. Du Pont De Nemours And Company Cryogenic brine separation of water and isocyanates
ATE46500T1 (de) * 1985-12-12 1989-10-15 Du Pont Verfahren zum abtrennen von methylisocyanat.
US4683329A (en) * 1986-04-16 1987-07-28 E. I. Dupont De Nemours And Company Beneficial use of water in catalytic conversion of formamides to isocyanates
US4795830A (en) * 1986-09-02 1989-01-03 E. I. Du Pont De Nemours And Company Use of water to inhibit decomposition of monoalkylformamides
US5126480A (en) * 1990-06-01 1992-06-30 Arco Chemical Technology, L.P. Isocyanate preparation
US5155267A (en) * 1991-10-24 1992-10-13 Arco Chemical Technology, L.P. Synthesis of isocyanate precursors from primary formamides
KR20110111383A (ko) * 2008-11-24 2011-10-11 리라이언스 라이프 사이언시스 프라이빗. 리미티드 테트라진 유도체의 제조 방법
PT2507205E (pt) * 2009-12-01 2014-08-22 Basf Se Processo para a produção de isocianatos por dissociação térmica de carbamatos
WO2011067369A1 (de) 2009-12-04 2011-06-09 Basf Se Verfahren zur herstellung von isocyanaten
EP2701841B1 (de) * 2011-04-26 2015-06-17 Basf Se Verfahren zur oxidativen dehydrierung von methanol zu formaldehyd an silberhaltigen gestricken
CN107473989B (zh) * 2016-06-08 2020-04-28 中国科学院大连化学物理研究所 一种催化甲醇转化制氨基甲酸甲酯的方法
WO2023274492A1 (en) 2021-06-28 2023-01-05 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Catalytic synthesis of free isocyanates

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099673A (en) * 1959-08-19 1963-07-30 Bayer Ag Process for the production of organic isocyanates
US3277140A (en) * 1963-07-16 1966-10-04 Air Prod & Chem Preparation of aliphatic isocyanates
DE1277851B (de) 1966-04-20 1968-09-19 Bayer Ag Verfahren zur Herstellung von 2-Chlorcarbonylphenylisocyanaten
US3929859A (en) * 1974-11-18 1975-12-30 Standard Oil Co Ohio Manufacture of dinitriles from thiodinitriles
US3960914A (en) * 1975-05-06 1976-06-01 Sun Ventures, Inc. Conversion of formamides to isocyanates
DE2520219C3 (de) 1975-05-07 1983-02-24 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Formaldehyd

Also Published As

Publication number Publication date
DE2860856D1 (en) 1981-10-29
JPS5439018A (en) 1979-03-24
US4207251A (en) 1980-06-10
IT7826324A0 (it) 1978-07-31
JPH0118067B2 (it) 1989-04-03
EP0000602A1 (en) 1979-02-07
CA1117962A (en) 1982-02-09
EP0000602B1 (en) 1981-07-22

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Effective date: 19970729