DE69103504D1 - Verfahren zur Behandlung von Dinitroanilinen mit Sulfit, um Verunreinigungen zu vermindern und zur Verminderung des Nitrosaminbildungsvermögens. - Google Patents

Verfahren zur Behandlung von Dinitroanilinen mit Sulfit, um Verunreinigungen zu vermindern und zur Verminderung des Nitrosaminbildungsvermögens.

Info

Publication number
DE69103504D1
DE69103504D1 DE69103504T DE69103504T DE69103504D1 DE 69103504 D1 DE69103504 D1 DE 69103504D1 DE 69103504 T DE69103504 T DE 69103504T DE 69103504 T DE69103504 T DE 69103504T DE 69103504 D1 DE69103504 D1 DE 69103504D1
Authority
DE
Germany
Prior art keywords
reduce
treating
dinitroanilines
sulfite
formation ability
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 - Fee Related
Application number
DE69103504T
Other languages
English (en)
Other versions
DE69103504T2 (de
Inventor
David D Wirth
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.)
Dow AgroSciences LLC
Original Assignee
DowElanco LLC
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 DowElanco LLC filed Critical DowElanco LLC
Publication of DE69103504D1 publication Critical patent/DE69103504D1/de
Application granted granted Critical
Publication of DE69103504T2 publication Critical patent/DE69103504T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69103504T 1990-10-02 1991-10-01 Verfahren zur Behandlung von Dinitroanilinen mit Sulfit, um Verunreinigungen zu vermindern und zur Verminderung des Nitrosaminbildungsvermögens. Expired - Fee Related DE69103504T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/591,590 US5196585A (en) 1990-10-02 1990-10-02 Process for treating dinitroanilines with sulfite to reduce impurities and to reduce the ability to produce nitrosamines

Publications (2)

Publication Number Publication Date
DE69103504D1 true DE69103504D1 (de) 1994-09-22
DE69103504T2 DE69103504T2 (de) 1994-12-08

Family

ID=24367069

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69103504T Expired - Fee Related DE69103504T2 (de) 1990-10-02 1991-10-01 Verfahren zur Behandlung von Dinitroanilinen mit Sulfit, um Verunreinigungen zu vermindern und zur Verminderung des Nitrosaminbildungsvermögens.

Country Status (16)

Country Link
US (1) US5196585A (de)
EP (1) EP0479384B1 (de)
JP (1) JP2992384B2 (de)
KR (1) KR100195771B1 (de)
AT (1) ATE110053T1 (de)
AU (1) AU639141B2 (de)
BR (1) BR9104242A (de)
CA (1) CA2052560C (de)
DE (1) DE69103504T2 (de)
DK (1) DK0479384T3 (de)
ES (1) ES2059043T3 (de)
FI (1) FI107147B (de)
HU (1) HU210906B (de)
IL (1) IL99619A (de)
MX (1) MX9101401A (de)
RO (1) RO109843B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1261259B (it) * 1993-09-13 1996-05-09 Finchimica Srl Procedimento per la preparazione di ethalfluralin
US5510534A (en) * 1995-01-04 1996-04-23 Atanor S.A. Process for reducing the nitrosamine content of herbicides
US5728881A (en) * 1997-03-05 1998-03-17 Srm Chemical, Ltd. Co. Process for preparing trifluralin
FR2760446B1 (fr) * 1997-03-07 1999-05-14 Rhodia Chimie Sa Procede de decoloration d'effluents aqueux comprenant des amines aromatiques
US6004482A (en) * 1997-12-24 1999-12-21 Bayer Corporation Stable aromatic amine composition, and a process for preparing color stable aromatic amines
US5922915A (en) * 1998-05-11 1999-07-13 Srm Chemical, Ltd., Co. Process for removing N-nitroso compounds from organo-amine compositions including dinitroaniline herbicides
CN101891634B (zh) * 2010-07-20 2013-04-03 涟水永安化工有限公司 一种二甲戊灵的提纯方法
CN102701989B (zh) * 2012-05-24 2013-11-13 山东华阳农药化工集团有限公司 二硝基苯胺类除草剂中的亚硝胺脱除方法
CN102766056B (zh) * 2012-08-13 2014-07-02 江西盾牌化工有限责任公司 一种化学除草剂仲丁灵原药含量达90±1%的制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA697087A (en) * 1964-11-03 W. Buls Vernon Decolorization process
US4139562A (en) * 1978-03-13 1979-02-13 Mitsui Toatsu Chemicals, Inc. Process for purifying crude p-aminophenol
US4440962A (en) * 1982-04-22 1984-04-03 Oxon Italia S.P.A. Process for removing nitrosating agents from 1-chloro-2,6-dinitro-4-(trifluoromethyl) benzene
US4501608A (en) * 1983-05-16 1985-02-26 Eli Lilly And Company Nitrosamine inhibition
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
IL78948A (en) * 1985-06-06 1991-03-10 Finchimica Srl Process for purifying crude trifluralin
IT1190440B (it) * 1985-12-18 1988-02-16 Finchimica Spa Procedimento migliorato per la purificazione della trifluralina
AU608808B2 (en) * 1987-03-02 1991-04-18 Ici Australia Operations Proprietary Limited Process for removing impurity

Also Published As

Publication number Publication date
HUT61720A (en) 1993-03-01
RO109843B1 (ro) 1995-06-30
US5196585A (en) 1993-03-23
HU210906B (en) 1995-09-28
EP0479384A1 (de) 1992-04-08
JP2992384B2 (ja) 1999-12-20
JPH04264059A (ja) 1992-09-18
DE69103504T2 (de) 1994-12-08
IL99619A (en) 1995-12-31
ES2059043T3 (es) 1994-11-01
AU8488491A (en) 1992-04-09
CA2052560A1 (en) 1992-04-03
KR100195771B1 (ko) 1999-06-15
MX9101401A (es) 1992-06-30
FI914610A (fi) 1992-04-03
FI107147B (fi) 2001-06-15
EP0479384B1 (de) 1994-08-17
CA2052560C (en) 2002-04-09
HU913133D0 (en) 1992-01-28
AU639141B2 (en) 1993-07-15
DK0479384T3 (da) 1995-01-02
KR920007982A (ko) 1992-05-27
BR9104242A (pt) 1992-06-02
ATE110053T1 (de) 1994-09-15
FI914610A0 (fi) 1991-10-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee