DD130143B1 - METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE - Google Patents

METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE

Info

Publication number
DD130143B1
DD130143B1 DD18786675A DD18786675A DD130143B1 DD 130143 B1 DD130143 B1 DD 130143B1 DD 18786675 A DD18786675 A DD 18786675A DD 18786675 A DD18786675 A DD 18786675A DD 130143 B1 DD130143 B1 DD 130143B1
Authority
DD
German Democratic Republic
Prior art keywords
distillation residue
thermal separation
continuous thermal
organic isocyanates
liquid distillation
Prior art date
Application number
DD18786675A
Other languages
German (de)
Other versions
DD130143A1 (en
Inventor
Guenter Muecke
Dieter Starosta
Original Assignee
Guenter Muecke
Dieter Starosta
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 Guenter Muecke, Dieter Starosta filed Critical Guenter Muecke
Priority to DD18786675A priority Critical patent/DD130143B1/en
Priority to FR7624652A priority patent/FR2320938A1/en
Priority to GB3366976A priority patent/GB1520055A/en
Priority to SU762389494A priority patent/SU983124A1/en
Publication of DD130143A1 publication Critical patent/DD130143A1/en
Publication of DD130143B1 publication Critical patent/DD130143B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • 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
DD18786675A 1975-08-15 1975-08-15 METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE DD130143B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DD18786675A DD130143B1 (en) 1975-08-15 1975-08-15 METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE
FR7624652A FR2320938A1 (en) 1975-08-15 1976-08-12 PROCESS ALLOWING TO SEPARATE ORGANIC ISOCYANATES CONTINUOUSLY BY THERMAL ROUTE FROM A LIQUID DISTILLATION RESIDUE
GB3366976A GB1520055A (en) 1975-08-15 1976-08-12 Process for continuous thermal separation of organic isocyanates from liquid distillation residues
SU762389494A SU983124A1 (en) 1975-08-15 1976-08-13 Method of recovering diisocyanates from liquid residue of their distrillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD18786675A DD130143B1 (en) 1975-08-15 1975-08-15 METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE

Publications (2)

Publication Number Publication Date
DD130143A1 DD130143A1 (en) 1978-03-08
DD130143B1 true DD130143B1 (en) 1979-12-27

Family

ID=5501391

Family Applications (1)

Application Number Title Priority Date Filing Date
DD18786675A DD130143B1 (en) 1975-08-15 1975-08-15 METHOD FOR CONTINUOUS THERMAL SEPARATION OF ORGANIC ISOCYANATES FROM LIQUID DISTILLATION RESIDUE

Country Status (4)

Country Link
DD (1) DD130143B1 (en)
FR (1) FR2320938A1 (en)
GB (1) GB1520055A (en)
SU (1) SU983124A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397396A1 (en) * 1977-07-12 1979-02-09 Ugine Kuhlmann PROCESS FOR RECOVERING TOLUENE DIISOCYANATE FROM MANUFACTURING RESIDUES
DE2915830A1 (en) * 1979-04-19 1980-10-23 Basf Ag PRODUCTION OF TOLUYLENE DIISOCYANATE AND / OR HIGH-BOILING SOLVENTS IN THE FLUID BED FROM DISTILLATION RESIDUES OF THE TOLUYLENE DIISOCANATE PRODUCTION
SE450641B (en) * 1983-02-01 1987-07-13 Johnson Axel Eng Ab SET FOR SEPARATION OF WATER-SOLUBLE COMPOUNDS AFTER EVAPORATION OF WATER SUSPENDED IN OIL AND USE OF THE PROCEDURE
SE8604441L (en) * 1986-10-20 1988-04-21 Nobel Chematur Ab PUT TO EXPLORE ISOCYANATES
ATE163407T1 (en) * 1991-06-26 1998-03-15 Lucky Ltd METHOD FOR SELECTIVE PRODUCTION OF 4,4-METHYLENE-BIS-(N-PHENYLALKYLCARBAMATE)
DE4127514A1 (en) * 1991-08-20 1993-02-25 Bayer Ag METHOD FOR PRODUCING POLYISOCYANATES FROM DISTILLATION RESIDUES OF THE TOLUYLENE DIISOCYANATE PRODUCTION

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457291A (en) * 1965-04-01 1969-07-22 Union Carbide Corp Production of isocyanates
US3405040A (en) * 1965-08-31 1968-10-08 Mobay Chemical Corp Method for recovering tolylene diisocyanate
US3694323A (en) * 1968-08-05 1972-09-26 Du Pont Separation of distillable isocyanates from their phosgenation masses
CH506322A (en) * 1969-03-17 1971-04-30 List Heinz Multi-spindle mixing and kneading machine
DE2035731C3 (en) * 1970-07-18 1985-08-29 Bayer Ag, 5090 Leverkusen Process for the one-step continuous separation of distillation residues from crude isocyanates

Also Published As

Publication number Publication date
FR2320938A1 (en) 1977-03-11
SU983124A1 (en) 1982-12-23
GB1520055A (en) 1978-08-02
FR2320938B1 (en) 1980-05-30
DD130143A1 (en) 1978-03-08

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