IL60467A - Process for the removal of nitrosation agent(s)from nitrated aromatic compounds - Google Patents

Process for the removal of nitrosation agent(s)from nitrated aromatic compounds

Info

Publication number
IL60467A
IL60467A IL60467A IL6046780A IL60467A IL 60467 A IL60467 A IL 60467A IL 60467 A IL60467 A IL 60467A IL 6046780 A IL6046780 A IL 6046780A IL 60467 A IL60467 A IL 60467A
Authority
IL
Israel
Prior art keywords
nitrated aromatic
removal
temperature
aromatic compounds
nitrosation agent
Prior art date
Application number
IL60467A
Other versions
IL60467A0 (en
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of IL60467A0 publication Critical patent/IL60467A0/en
Publication of IL60467A publication Critical patent/IL60467A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups

Landscapes

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

Abstract

1. Process for the removal of nitrosation agent(s) from nitrated aromatic compounds with a solidification temperature between about 10 and 1208C, characterized in cooling or allowing to cool the nitration mixture - having a temperature above the solidification temperature of the respective nitrated aromatic compound or having been heated to such a temperature - subsequent to the nitration to a temperature below this solidification temperature, separating the crystallized nitrated aromatic compound and neutral washing same in usual manner.
IL60467A 1979-07-04 1980-07-02 Process for the removal of nitrosation agent(s)from nitrated aromatic compounds IL60467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2926947A DE2926947C2 (en) 1979-07-04 1979-07-04 Process for removing nitrosating agent (s) from nitrated aromatic compounds

Publications (2)

Publication Number Publication Date
IL60467A0 IL60467A0 (en) 1980-09-16
IL60467A true IL60467A (en) 1985-05-31

Family

ID=6074855

Family Applications (1)

Application Number Title Priority Date Filing Date
IL60467A IL60467A (en) 1979-07-04 1980-07-02 Process for the removal of nitrosation agent(s)from nitrated aromatic compounds

Country Status (5)

Country Link
EP (1) EP0022241B1 (en)
JP (1) JPS5610145A (en)
BR (1) BR8004168A (en)
DE (2) DE2926947C2 (en)
IL (1) IL60467A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE22551T1 (en) * 1982-04-22 1986-10-15 Oxon Italia Spa PROCESS FOR THE MANUFACTURE OF 1-CHLORINE-2,6-DINITRO-4-(TRIFLUOROMETHYL)-BENZENE, FREE OF NITROSING AGENTS.
DE4216416C1 (en) * 1992-05-18 1993-05-13 Bayer Ag, 5090 Leverkusen, De

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257093A (en) * 1937-12-31 1941-09-30 Du Pont Dinitro-benzotrifluoride compounds
DE1092459B (en) * 1954-02-11 1960-11-10 Bofors Ab Process for the recrystallization of mononuclear aromatic di- and trinitro compounds
GB933680A (en) * 1962-02-14 1963-08-08 Wolfen Filmfab Veb Separation of a mixture of 1, 5-and 1, 8-dinitronaphthalenes into its two components
US3311666A (en) * 1965-12-13 1967-03-28 Phillips Petroleum Co Separation of chloronitrobenzene isomers by crystallization and fractionation
DE1618109B1 (en) * 1967-03-11 1970-10-29 Basf Ag Process for the separation of 1,5 and 1,8 dinitronaphthalene
US3726930A (en) * 1970-10-29 1973-04-10 United States Borax Chem Preparation of 3,5-dinitrobenzotrifluoride compounds
DE2635695C3 (en) * 1976-08-07 1979-03-08 Bayer Ag, 5090 Leverkusen Process for the preparation of nitrobenzotrifluorides which have up to two nitro groups in the meta position
IT1077080B (en) * 1976-10-22 1985-04-27 Montedison Spa PREPARATION OF 2.6 DINITRO 4 TRIFLUOROMETHYL CHLOROBENZOL FOR NITRATION OF 4 TRIFLUOROMETHYL CHLOROBENZOL IN A STAGE
US4096195A (en) * 1977-05-13 1978-06-20 Gaf Corporation Cyclic two-stage nitration process for preparing 4-chloro-3,5-dinitrobenzotrifluoride from 4-chlorobenzotrifluoride
JPS6041974B2 (en) * 1977-07-05 1985-09-19 日本合成化学工業株式会社 How to obtain particles dispersed in a medium by melt drying method
RO75656A (en) * 1977-07-18 1981-04-20 Eli Lilly And Co,Us PROCEDURE FOR THE PURIFICATION OF DYNITROANILINS
GB2003148B (en) * 1977-08-17 1982-02-10 Lilly Co Eli Dinitroaniline purification with bromine and chlorine
US4185035A (en) * 1977-09-02 1980-01-22 Eli Lilly And Company Dinitroaniline purification with inorganic acid halides
US4120905A (en) * 1977-09-21 1978-10-17 Eli Lilly And Company Removal of nitrosating agents

Also Published As

Publication number Publication date
JPH0135818B2 (en) 1989-07-27
BR8004168A (en) 1981-01-21
IL60467A0 (en) 1980-09-16
DE3061063D1 (en) 1982-12-16
EP0022241B1 (en) 1982-11-10
DE2926947A1 (en) 1981-01-08
JPS5610145A (en) 1981-02-02
EP0022241A1 (en) 1981-01-14
DE2926947C2 (en) 1982-03-18

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