GB1467936A - Process for purifying the waste water from the production of polybasic carboxylic acid esters - Google Patents

Process for purifying the waste water from the production of polybasic carboxylic acid esters

Info

Publication number
GB1467936A
GB1467936A GB2230475A GB2230475A GB1467936A GB 1467936 A GB1467936 A GB 1467936A GB 2230475 A GB2230475 A GB 2230475A GB 2230475 A GB2230475 A GB 2230475A GB 1467936 A GB1467936 A GB 1467936A
Authority
GB
United Kingdom
Prior art keywords
production
waste water
purifying
carboxylic acid
acid esters
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
GB2230475A
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie 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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB1467936A publication Critical patent/GB1467936A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/025—Thermal hydrolysis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/38—Polymers

Abstract

1467936 Treating waste water RUHRCHEMIE AG 22 May 1975 [31 May 1974] 22304/75 Heading C1C Effluent water, from the production of plasticizer esters by the esterification of an aliphatic of aromatic polycarboxylic acid with an alkanol in the presence of H 2 SO 4 as catalyst, is treated to remove and recover organic matter by heating in the liquid phase at above 200‹ C., cooling optionally acidifying and separating the organic and aqueous phases. The aqueous phase may be further treated with acid to precipitate dissolved carboxylic acids.
GB2230475A 1974-05-31 1975-05-22 Process for purifying the waste water from the production of polybasic carboxylic acid esters Expired GB1467936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2426448A DE2426448C2 (en) 1974-05-31 1974-05-31 Process for the purification of waste water from the production of esters

Publications (1)

Publication Number Publication Date
GB1467936A true GB1467936A (en) 1977-03-23

Family

ID=5917008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2230475A Expired GB1467936A (en) 1974-05-31 1975-05-22 Process for purifying the waste water from the production of polybasic carboxylic acid esters

Country Status (16)

Country Link
JP (1) JPS5858337B2 (en)
AT (1) AT333671B (en)
BE (1) BE829476A (en)
BR (1) BR7503289A (en)
CA (1) CA1056738A (en)
DE (1) DE2426448C2 (en)
ES (1) ES437932A1 (en)
FR (1) FR2272956B1 (en)
GB (1) GB1467936A (en)
HU (1) HU172413B (en)
IT (1) IT1035867B (en)
NL (2) NL162616B (en)
PL (1) PL107635B1 (en)
RO (1) RO66358A (en)
SE (1) SE408788B (en)
SU (1) SU695550A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005203A2 (en) * 1978-04-27 1979-11-14 Bayer Ag Process for treating waste waters containing aromatic nitro-hydroxy compounds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553840C3 (en) * 1975-11-29 1981-01-29 Bayer Ag, 5090 Leverkusen Pressure hydrolytic treatment of waste water

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560683A (en) * 1968-02-26 1969-03-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005203A2 (en) * 1978-04-27 1979-11-14 Bayer Ag Process for treating waste waters containing aromatic nitro-hydroxy compounds
EP0005203A3 (en) * 1978-04-27 1979-11-28 Bayer Aktiengesellschaft Process for treating waste waters containing aromatic nitro-hydroxy compounds

Also Published As

Publication number Publication date
DE2426448C2 (en) 1984-05-17
BE829476A (en) 1975-11-26
CA1056738A (en) 1979-06-19
PL107635B1 (en) 1980-02-29
AT333671B (en) 1976-12-10
JPS5858337B2 (en) 1983-12-24
SE408788B (en) 1979-07-09
SU695550A3 (en) 1979-10-30
NL162616C (en)
IT1035867B (en) 1979-10-20
FR2272956A1 (en) 1975-12-26
FR2272956B1 (en) 1977-04-15
ES437932A1 (en) 1977-01-01
RO66358A (en) 1979-08-15
DE2426448B1 (en) 1975-11-20
NL7505820A (en) 1975-12-02
HU172413B (en) 1978-08-28
AU8151875A (en) 1976-12-02
JPS514117A (en) 1976-01-14
BR7503289A (en) 1976-05-25
ATA722574A (en) 1976-03-15
NL162616B (en) 1980-01-15
SE7505851L (en) 1975-12-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee