ES2059043T3 - Procedimiento para tratar dinitroanilinas con sulfito para reducir impurezas y reducir la capacidad de producir nitrosaminas. - Google Patents

Procedimiento para tratar dinitroanilinas con sulfito para reducir impurezas y reducir la capacidad de producir nitrosaminas.

Info

Publication number
ES2059043T3
ES2059043T3 ES91202557T ES91202557T ES2059043T3 ES 2059043 T3 ES2059043 T3 ES 2059043T3 ES 91202557 T ES91202557 T ES 91202557T ES 91202557 T ES91202557 T ES 91202557T ES 2059043 T3 ES2059043 T3 ES 2059043T3
Authority
ES
Spain
Prior art keywords
reduce
treating
dinitroanilins
sulphite
procedure
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 - Lifetime
Application number
ES91202557T
Other languages
English (en)
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.)
Corteva Agriscience 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
Application granted granted Critical
Publication of ES2059043T3 publication Critical patent/ES2059043T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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)

Abstract

LA PRESENTE INVENCION SE DIRIGE A UN PROCESO PARA TRATAR DINITROANILINA CRUDA CON UNA SOLUCION DE SULFITO ACUOSA COMO METODO PARA ESTABILIZAR EL HERBICIDA CONTRA LA FORMACION DE NITROSAMINOS Y DE REDUCIR LAS IMPUREZAS EN EL MISMO.
ES91202557T 1990-10-02 1991-10-01 Procedimiento para tratar dinitroanilinas con sulfito para reducir impurezas y reducir la capacidad de producir nitrosaminas. Expired - Lifetime ES2059043T3 (es)

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 (1)

Publication Number Publication Date
ES2059043T3 true ES2059043T3 (es) 1994-11-01

Family

ID=24367069

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91202557T Expired - Lifetime ES2059043T3 (es) 1990-10-02 1991-10-01 Procedimiento para tratar dinitroanilinas con sulfito para reducir impurezas y reducir la capacidad de producir nitrosaminas.

Country Status (16)

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

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
IL99619A (en) 1995-12-31
DK0479384T3 (da) 1995-01-02
CA2052560A1 (en) 1992-04-03
HUT61720A (en) 1993-03-01
CA2052560C (en) 2002-04-09
MX9101401A (es) 1992-06-30
JP2992384B2 (ja) 1999-12-20
RO109843B1 (ro) 1995-06-30
HU913133D0 (en) 1992-01-28
FI914610A0 (fi) 1991-10-01
DE69103504T2 (de) 1994-12-08
FI914610A (fi) 1992-04-03
AU639141B2 (en) 1993-07-15
KR100195771B1 (ko) 1999-06-15
AU8488491A (en) 1992-04-09
US5196585A (en) 1993-03-23
EP0479384A1 (en) 1992-04-08
EP0479384B1 (en) 1994-08-17
BR9104242A (pt) 1992-06-02
ATE110053T1 (de) 1994-09-15
FI107147B (fi) 2001-06-15
HU210906B (en) 1995-09-28
DE69103504D1 (de) 1994-09-22
KR920007982A (ko) 1992-05-27
JPH04264059A (ja) 1992-09-18

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