GB1253607A - Process for removing heavy metal ions from anhydrous strong organic acids - Google Patents

Process for removing heavy metal ions from anhydrous strong organic acids

Info

Publication number
GB1253607A
GB1253607A GB54895/69A GB5489569A GB1253607A GB 1253607 A GB1253607 A GB 1253607A GB 54895/69 A GB54895/69 A GB 54895/69A GB 5489569 A GB5489569 A GB 5489569A GB 1253607 A GB1253607 A GB 1253607A
Authority
GB
United Kingdom
Prior art keywords
acid
acetic
mixture
acetic acid
organic
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
Application number
GB54895/69A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke 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, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1253607A publication Critical patent/GB1253607A/en
Expired legal-status Critical Current

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
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/05—Processes using organic exchangers in the strongly acidic form

Abstract

1,253,607. Removal of metal ions from organic acids by ion exchange. FARBWERKE HOECHST A.G. 10 Nov., 1969 [9 Nov., 1968], No. 54895/69. Heading B1J. [Also in Division C2] Ions of a heavy metal having a specific gravity greater than 5, for example copper, lead, iron or nickel, are removed from anhydrous organic acid having a dissociation constant at 25‹C greater than 1.76.10<SP>-5</SP> by a process which comprises contacting the organic acid, for example at a temperature of from 10 to 140‹C, with a macroreticularstructured strongly acidic cation exchange resin which has been dried by treatment initially with acetic acid and subsequently with a mixture of acetic acid and acetic anhydride, for example a mixture containing from 5 to 30 weight per cent of acetic anhydride. Prior to such treatment, the resin may be activated by contact with aqueous hydrochloric acid followed by washing with water. The resin may be a polymer of styrene or a copolymer of styrene and divinyl benzene, the polymer or copolymer being sulphonated in the nucleus. The organic acid may be formic acid, a halogenated acetic acid, for example a chlorinated acetic acid, chloropropionic acid, bromopropionic acid, glycolic acid, acrylic acid or crotonic acid; alternatively, the organic acid may be a mixture of acetic acid, monochloroacetic acid and dichloroacetic acid, which mixture may contain a minor proportion of trichloroacetic acid and may be obtained in the manufacture of monochloroacetic acid from acetic acid.
GB54895/69A 1968-11-09 1969-11-10 Process for removing heavy metal ions from anhydrous strong organic acids Expired GB1253607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681808156 DE1808156A1 (en) 1968-11-09 1968-11-09 Process for removing heavy metal ions from anhydrous, strong organic acids

Publications (1)

Publication Number Publication Date
GB1253607A true GB1253607A (en) 1971-11-17

Family

ID=5712959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54895/69A Expired GB1253607A (en) 1968-11-09 1969-11-10 Process for removing heavy metal ions from anhydrous strong organic acids

Country Status (6)

Country Link
BE (1) BE741497A (en)
DE (1) DE1808156A1 (en)
FR (1) FR2022981A1 (en)
GB (1) GB1253607A (en)
NL (1) NL6916294A (en)
SE (1) SE367392B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834664A1 (en) * 1978-04-10 1979-10-11 Asahi Chemical Ind PROCESS FOR THE RECOVERY OF HEAVY METAL IONS OR OF HEAVY METAL IONS AND HALOGEN SUBSTANCES FROM SOLUTIONS CONTAINING LOWER ALIPHATIC MONOCARBON ACID
EP0353645A2 (en) * 1988-08-04 1990-02-07 Hoechst Aktiengesellschaft Process for preparing high-purity 5,5-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene] bis-1,3-isobenzofuran dione
US5344976A (en) * 1991-10-18 1994-09-06 Bp Chemicald Limited Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214477B (en) * 1960-05-20 1966-04-14 Giuseppe Stradella Closure for clamping rings, tires or the like.
DE1196019B (en) * 1961-12-04 1965-07-01 Armel Monnier Connection of parts of plastic tension bands
DE1241671B (en) * 1962-03-23 1967-06-01 Jurid Werke Gmbh Hose clamp
US3838043A (en) * 1972-09-05 1974-09-24 Rohm & Haas Removal of residual organoleads from organic liquids
DE3511261A1 (en) * 1985-03-28 1986-10-09 Unima Maschinenbau Gmbh, 6603 Sulzbach PIPE CLAMP
FR2710058B1 (en) * 1993-06-21 1995-10-20 Dufour Claude Process for the preparation of high purity copper and zinc organic salts.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834664A1 (en) * 1978-04-10 1979-10-11 Asahi Chemical Ind PROCESS FOR THE RECOVERY OF HEAVY METAL IONS OR OF HEAVY METAL IONS AND HALOGEN SUBSTANCES FROM SOLUTIONS CONTAINING LOWER ALIPHATIC MONOCARBON ACID
EP0353645A2 (en) * 1988-08-04 1990-02-07 Hoechst Aktiengesellschaft Process for preparing high-purity 5,5-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene] bis-1,3-isobenzofuran dione
EP0353645A3 (en) * 1988-08-04 1991-08-07 Hoechst Aktiengesellschaft Process for preparing high-purity 5,5-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene] bis-1,3-isobenzofuran dione
US5344976A (en) * 1991-10-18 1994-09-06 Bp Chemicald Limited Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides
USRE35615E (en) * 1991-10-18 1997-09-23 Bp Chemicals Limited Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides

Also Published As

Publication number Publication date
SE367392B (en) 1974-05-27
FR2022981A1 (en) 1970-08-07
DE1808156A1 (en) 1970-06-11
NL6916294A (en) 1970-05-12
BE741497A (en) 1970-05-11

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