BE790558A - PROCESS FOR PURIFYING 2- (2,4,5-TRI-CHLOROPHENOXY) PROPIONIC ACID CONTAMINATED BY DIOXIN - Google Patents

PROCESS FOR PURIFYING 2- (2,4,5-TRI-CHLOROPHENOXY) PROPIONIC ACID CONTAMINATED BY DIOXIN

Info

Publication number
BE790558A
BE790558A BE790558DA BE790558A BE 790558 A BE790558 A BE 790558A BE 790558D A BE790558D A BE 790558DA BE 790558 A BE790558 A BE 790558A
Authority
BE
Belgium
Prior art keywords
chlorophenoxy
dioxin
purifying
tri
propionic acid
Prior art date
Application number
Other languages
French (fr)
Inventor
A E Sidwell
Original Assignee
Hercules Inc
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.)
Publication date
Priority claimed from US00192309A external-priority patent/US3840593A/en
Priority claimed from US00192299A external-priority patent/US3840592A/en
Publication of BE790558A publication Critical patent/BE790558A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE790558D 1971-10-26 PROCESS FOR PURIFYING 2- (2,4,5-TRI-CHLOROPHENOXY) PROPIONIC ACID CONTAMINATED BY DIOXIN BE790558A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00192309A US3840593A (en) 1971-10-26 1971-10-26 Separation of 2,4,5-t and 2,3,7,8-tetrachlorodibenzo-p-dioxin from 2-(2,4,5-trichlorophenoxy)propionic acid contaminated therewith
US00192299A US3840592A (en) 1971-10-26 1971-10-26 Separation of dioxin and 2,4,5-t from dioxin and 2,4,5-t-contaminated silvex

Publications (1)

Publication Number Publication Date
BE790558A true BE790558A (en) 1973-04-25

Family

ID=26887952

Family Applications (1)

Application Number Title Priority Date Filing Date
BE790558D BE790558A (en) 1971-10-26 PROCESS FOR PURIFYING 2- (2,4,5-TRI-CHLOROPHENOXY) PROPIONIC ACID CONTAMINATED BY DIOXIN

Country Status (5)

Country Link
BE (1) BE790558A (en)
DE (1) DE2252561A1 (en)
FR (1) FR2158290A1 (en)
GB (1) GB1356896A (en)
NL (1) NL7214524A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326882A (en) * 1978-08-28 1982-04-27 Ppg Industries, Inc. Trichlorophenoxy alkanoic acid free of chlorinated dibenzo-p-dioxins

Also Published As

Publication number Publication date
GB1356896A (en) 1974-06-19
DE2252561A1 (en) 1973-05-03
FR2158290A1 (en) 1973-06-15
NL7214524A (en) 1973-05-01

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