GB928179A - Method of washing effluent gases from chlorination of acetic acid - Google Patents

Method of washing effluent gases from chlorination of acetic acid

Info

Publication number
GB928179A
GB928179A GB4063260A GB4063260A GB928179A GB 928179 A GB928179 A GB 928179A GB 4063260 A GB4063260 A GB 4063260A GB 4063260 A GB4063260 A GB 4063260A GB 928179 A GB928179 A GB 928179A
Authority
GB
United Kingdom
Prior art keywords
acetic acid
gas
chlorination
column
acetic
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
GB4063260A
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.)
Uddeholms AB
Original Assignee
Uddeholms AB
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
Priority claimed from SE64860A external-priority patent/SE301638B/xx
Application filed by Uddeholms AB filed Critical Uddeholms AB
Publication of GB928179A publication Critical patent/GB928179A/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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/363—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • 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

Abstract

<PICT:0928179/III/1> Gas, which contains HCl and which may contain acetic acid, acetyl chloride and acetic anhydride originating from the chlorination of acetic acid (e.g. by Cl2 at 100 DEG -150 DEG C.) in 1 is passed through 2 countercurrently to a flow of acetic acid in sections 8b and 8a of an absorption column 3 which may be packed or contain plates. The gas is cooled in the lower section 8b by withdrawing part of the acetic acid, which is introduced at 4, through 10 and pumped by 11 through a cooler 12 higher up the column 8b. Part of the gas which has been treated by acetic acid but which still contains HCl is withdrawn through 7, the remainder of the gas is passed to 5 countercurrently to a flow of acetic acid in 6 which is simultaneously cooled, e.g. by a liquid film cooler, the quantity of gas remaining is controlled to give a substantially saturated solution of HCl in acetic acid which may be withdrawn at either 9, an outlet leading to the reaction vessel 1, or at 10 as above. Alternatively the cooling and saturation of the acetic acid may be carried out in a liquid film cooler separate from sections 8a and 8b of column 3. The chlorination of the acetic acid, usually to form mono-chloracetic acid, may be performed in the presence of acetic anhydride or acetyl chloride as promoters, or S, P or I as catalysts.
GB4063260A 1959-12-07 1960-11-25 Method of washing effluent gases from chlorination of acetic acid Expired GB928179A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE1152159 1959-12-07
SE1152259 1959-12-07
SE64659 1959-12-12
SE64760 1960-01-22
SE64860A SE301638B (en) 1960-01-22 1960-01-22

Publications (1)

Publication Number Publication Date
GB928179A true GB928179A (en) 1963-06-06

Family

ID=31721820

Family Applications (3)

Application Number Title Priority Date Filing Date
GB4063260A Expired GB928179A (en) 1959-12-07 1960-11-25 Method of washing effluent gases from chlorination of acetic acid
GB4063160A Expired GB928178A (en) 1959-12-07 1960-11-25 Method for the manufacture of monochloracetic acid by chlorinating acetic acid
GB4063060A Expired GB949393A (en) 1959-12-07 1960-11-25 Method of purifying monochloroacetic acid

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB4063160A Expired GB928178A (en) 1959-12-07 1960-11-25 Method for the manufacture of monochloracetic acid by chlorinating acetic acid
GB4063060A Expired GB949393A (en) 1959-12-07 1960-11-25 Method of purifying monochloroacetic acid

Country Status (3)

Country Link
DE (2) DE1232129B (en)
GB (3) GB928179A (en)
NL (2) NL132195C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311749A1 (en) * 1975-05-20 1976-12-17 Hoechst Ag CRUDE HYDROCHLORIC GAS PURIFICATION PROCESS
EP0210480A2 (en) * 1985-07-26 1987-02-04 Hoechst Aktiengesellschaft Process for purifying hydrogen chloride gas
WO2017064015A1 (en) 2015-10-13 2017-04-20 Akzo Nobel Chemicals International B.V. Process for the preparation of monochloroacetic acid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365493A (en) * 1964-09-29 1968-01-23 Dow Chemical Co Manufacture of monochloroacetic acid
JPS56100736A (en) 1980-01-16 1981-08-12 Tsukishima Kikai Co Ltd Purifying method of monochloroacetic acid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860355C (en) * 1942-07-08 1952-12-22 Lech Chemie Gersthofen Process for the separation of mixtures of mono- and dichloroacetic acid or their salts
DE865739C (en) * 1942-08-17 1953-02-05 Chemische Werke Huels Ges Mit Process for the production of monochloroacetic acid
US2790828A (en) * 1955-03-28 1957-04-30 Stauffer Chemical Co Purification of monochloroacetic acid
US2809214A (en) * 1955-12-22 1957-10-08 New York Ohio Chemical Corp Purification of monochloroacetic acid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311749A1 (en) * 1975-05-20 1976-12-17 Hoechst Ag CRUDE HYDROCHLORIC GAS PURIFICATION PROCESS
US4003723A (en) * 1975-05-20 1977-01-18 Hoechst Aktiengesellschaft Purification of crude hydrogen chloride
EP0210480A2 (en) * 1985-07-26 1987-02-04 Hoechst Aktiengesellschaft Process for purifying hydrogen chloride gas
EP0210480A3 (en) * 1985-07-26 1987-12-09 Hoechst Aktiengesellschaft Process for purifying hydrogen chloride gas
WO2017064015A1 (en) 2015-10-13 2017-04-20 Akzo Nobel Chemicals International B.V. Process for the preparation of monochloroacetic acid

Also Published As

Publication number Publication date
GB928178A (en) 1963-06-06
NL258792A (en)
DE1232129B (en) 1967-01-12
NL132195C (en)
DE1268130B (en) 1968-05-16
GB949393A (en) 1964-02-12

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