FR2398044A1 - Purification des dinitroanilines par elimination des nitrosamines - Google Patents

Purification des dinitroanilines par elimination des nitrosamines

Info

Publication number
FR2398044A1
FR2398044A1 FR7821173A FR7821173A FR2398044A1 FR 2398044 A1 FR2398044 A1 FR 2398044A1 FR 7821173 A FR7821173 A FR 7821173A FR 7821173 A FR7821173 A FR 7821173A FR 2398044 A1 FR2398044 A1 FR 2398044A1
Authority
FR
France
Prior art keywords
nitrosamine
dinitroanilines
nitrosamines
elimination
purification
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.)
Granted
Application number
FR7821173A
Other languages
English (en)
Other versions
FR2398044B1 (fr
Inventor
Richard Frank Eizember
Kathleen Rose Vogler
William Nathaniel Cannon
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.)
Eli Lilly and Co
Original Assignee
Eli Lilly and Co
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 Eli Lilly and Co filed Critical Eli Lilly and Co
Publication of FR2398044A1 publication Critical patent/FR2398044A1/fr
Application granted granted Critical
Publication of FR2398044B1 publication Critical patent/FR2398044B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82—Purification; Separation; Stabilisation; Use of additives
    • C07C209/84—Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/52—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups

Landscapes

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

Abstract

L'invention concerne un procédé de purification des dinitroanilines, par élimination des nitrosamines qu'elles contiennent. On met une dinitroaniline contenant une nitrosamine en contact en phase liquide avec un réactif qui est l'acide chlorhydrique à 20-38 % ou le gaz chlorhydrique, à une température comprise entre la température ambiante et 140 degrés C, pendant un temps suffisant pour réduire de façon substantielle la teneur en nitrosamine; puis on récupère la dinitroaniline qui contient alors un dixième de la teneur en nitrosamine initiale ou moins, et en général moins de 1 ppm de nitrosamine.
FR7821173A 1977-07-18 1978-07-17 Purification des dinitroanilines par elimination des nitrosamines Granted FR2398044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81655877A 1977-07-18 1977-07-18
US87883478A 1978-02-17 1978-02-17

Publications (2)

Publication Number Publication Date
FR2398044A1 true FR2398044A1 (fr) 1979-02-16
FR2398044B1 FR2398044B1 (fr) 1980-10-31

Family

ID=27124088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821173A Granted FR2398044A1 (fr) 1977-07-18 1978-07-17 Purification des dinitroanilines par elimination des nitrosamines

Country Status (21)

Country Link
JP (1) JPS5822102B2 (fr)
AR (1) AR221846A1 (fr)
AU (1) AU516698B2 (fr)
BG (1) BG34182A3 (fr)
BR (1) BR7804599A (fr)
CA (1) CA1081256A (fr)
CS (1) CS203196B2 (fr)
DD (1) DD137222A5 (fr)
DE (1) DE2831119C2 (fr)
DK (1) DK152113C (fr)
ES (1) ES471821A1 (fr)
FR (1) FR2398044A1 (fr)
GB (1) GB1599930A (fr)
HU (1) HU182483B (fr)
IE (1) IE47127B1 (fr)
IL (1) IL55142A (fr)
IT (1) IT1097822B (fr)
MX (1) MX5203E (fr)
NL (1) NL189911C (fr)
PL (1) PL119759B1 (fr)
RO (1) RO75656A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3061492D1 (en) * 1979-05-21 1983-02-03 Hoechst Ag Process for the removal of nitrozation agents from nitrated aromatic compounds
DE2926947C2 (de) * 1979-07-04 1982-03-18 Hoechst Ag, 6000 Frankfurt Verfahren zur Entfernung von Nitrosierungsmittel (n) aus nitrierten aromatischen Verbindungen
DE3345157A1 (de) * 1983-12-14 1985-06-27 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von nitrosaminfreien n,n-disubstituierten nitroaromatischen aminen und deren stabilisierung gegen nitrosaminbildung
IT1195822B (it) * 1986-08-12 1988-10-27 I Pi Ci Spa Procedimento per la purificazione della trifluralina
IT1293450B1 (it) * 1997-07-14 1999-03-01 Finchimica Srl Procedimento per la purificazione di dinitroaniline.
CN107106970B (zh) * 2015-01-07 2020-06-09 三菱日立电力系统株式会社 亚硝基化合物的处理方法及处理装置
CN109320424B (zh) * 2017-07-31 2021-12-21 江苏永安化工有限公司 一种二甲戊灵的纯化方法
CN116735760B (zh) * 2023-08-16 2024-02-09 山东道可化学有限公司 一种氟乐灵中n,n-二丙基亚硝胺的检测方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388788A1 (fr) * 1977-04-25 1978-11-24 American Cyanamid Co Procede de denitrosation de nitrosamines organiques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388788A1 (fr) * 1977-04-25 1978-11-24 American Cyanamid Co Procede de denitrosation de nitrosamines organiques

Also Published As

Publication number Publication date
FR2398044B1 (fr) 1980-10-31
HU182483B (en) 1984-01-30
JPS5422329A (en) 1979-02-20
IE47127B1 (en) 1983-12-28
JPS5822102B2 (ja) 1983-05-06
DK319378A (da) 1979-01-19
RO75656A (fr) 1981-04-20
NL189911C (nl) 1993-09-01
IT7825724A0 (it) 1978-07-14
GB1599930A (en) 1981-10-07
NL189911B (nl) 1993-04-01
DK152113B (da) 1988-02-01
BG34182A3 (en) 1983-07-15
PL208500A1 (pl) 1979-07-02
IE781430L (en) 1979-01-18
DE2831119C2 (de) 1983-05-26
NL7807576A (nl) 1979-01-22
IT1097822B (it) 1985-08-31
DE2831119A1 (de) 1979-02-08
IL55142A0 (en) 1978-09-29
AR221846A1 (es) 1981-03-31
DD137222A5 (de) 1979-08-22
BR7804599A (pt) 1979-03-20
ES471821A1 (es) 1979-10-01
AU3805878A (en) 1980-01-17
AU516698B2 (en) 1981-06-18
PL119759B1 (en) 1982-01-30
CS203196B2 (en) 1981-02-27
DK152113C (da) 1988-06-20
IL55142A (en) 1981-06-29
CA1081256A (fr) 1980-07-08
MX5203E (es) 1983-04-25

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