GB1367511A - Process for the purification of waste water from plants for the production of acrylonitrile - Google Patents

Process for the purification of waste water from plants for the production of acrylonitrile

Info

Publication number
GB1367511A
GB1367511A GB4739371A GB4739371A GB1367511A GB 1367511 A GB1367511 A GB 1367511A GB 4739371 A GB4739371 A GB 4739371A GB 4739371 A GB4739371 A GB 4739371A GB 1367511 A GB1367511 A GB 1367511A
Authority
GB
United Kingdom
Prior art keywords
column
water
evaporator
acrylonitrile
production
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
GB4739371A
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.)
Erdoelchemie GmbH
Original Assignee
Erdoelchemie GmbH
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 Erdoelchemie GmbH filed Critical Erdoelchemie GmbH
Publication of GB1367511A publication Critical patent/GB1367511A/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
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048—Purification of waste water by evaporation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/32—Separation; Purification; Stabilisation; Use of additives
    • C07C253/34—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1367511 Purification of waste water from acrylonitrile production ERDOLCHEMIE GmbH and BAYER AG 12 Oct 1971 [15 Oct 1970] 47393/71 Heading BIB Contaminated water, which has been used to wash gaseous reaction products from the catalytic oxidation of propylene and ammonia for the production of acrylonitrile, is freed from acetonitrile in distillation column I and is then boiled in column 2 which is heated by element 8 supplied with steam from evaporator 4 wherein the water flowing from the base of column 2 is evaporated under a pressure greater than atmospheric; the condensate formed in element 8 (i.e. purified water) being discharged through conduit 9 into a flowing water system. A concentrate containing up to 60 wt% of high-boiling and resinous organic compounds is withdrawn from evaporator 4 through outlet 10, and may be passed to an incinerator. Column 2 should contain 7 to 20 materialexchange baffles, and is preferably operated at a gauge-pressure of 0.4 to I atm.; and 0.4 to 1 part of steam is supplied to element 8 per part of water entering column 2. A small proportion of an organic amine boiling above 170‹C may be added to the water flowing down column 2, and/or to the liquid boiling in evaporator 4.
GB4739371A 1970-10-15 1971-10-12 Process for the purification of waste water from plants for the production of acrylonitrile Expired GB1367511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702050722 DE2050722C3 (en) 1970-10-15 1970-10-15 Process for the preparation of an aqueous runoff from plants for the production of acrylonitrile

Publications (1)

Publication Number Publication Date
GB1367511A true GB1367511A (en) 1974-09-18

Family

ID=5785252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4739371A Expired GB1367511A (en) 1970-10-15 1971-10-12 Process for the purification of waste water from plants for the production of acrylonitrile

Country Status (10)

Country Link
JP (1) JPS5140388B1 (en)
AT (1) AT311271B (en)
BE (1) BE773941A (en)
DE (1) DE2050722C3 (en)
ES (1) ES396040A1 (en)
FR (1) FR2111448A5 (en)
GB (1) GB1367511A (en)
IT (1) IT944744B (en)
NL (1) NL175404C (en)
RO (1) RO66578A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913233A1 (en) * 2007-03-01 2008-09-05 Rhodia Recherches & Tech Process to treat aqueous effluent comprising aromatic amine and light organic impurities, comprises subjecting aqueous effluent flow to distillation operation to obtain liquid flow of aromatic amine, gas and purified water
CN109336204A (en) * 2018-12-05 2019-02-15 大连英蕴科技有限公司 A kind of ship desalination plant and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615036A1 (en) * 1976-04-07 1977-10-27 Erdoelchemie Gmbh PROCESS FOR THE REMOVAL OF NITROGEN COMPOUNDS FROM ACRYLIC NITRILE PRODUCTION WASTE
DE4022222A1 (en) * 1990-07-12 1992-01-16 Erdoelchemie Gmbh METHOD FOR PURIFYING ACRYLNITRILE WASTE WATER
DE4033342A1 (en) * 1990-10-19 1992-04-23 Oemv Deutschland Gmbh Treating waste water contg. sludge - by addn. of hydrogen peroxide, oxidn. and distillation to remove volatiles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913233A1 (en) * 2007-03-01 2008-09-05 Rhodia Recherches & Tech Process to treat aqueous effluent comprising aromatic amine and light organic impurities, comprises subjecting aqueous effluent flow to distillation operation to obtain liquid flow of aromatic amine, gas and purified water
WO2008107350A1 (en) * 2007-03-01 2008-09-12 Rhodia Operations Process for treating aqueous effluents comprising aromatic amino compounds
CN109336204A (en) * 2018-12-05 2019-02-15 大连英蕴科技有限公司 A kind of ship desalination plant and method

Also Published As

Publication number Publication date
DE2050722B2 (en) 1977-12-08
DE2050722A1 (en) 1972-04-20
JPS5140388B1 (en) 1976-11-02
NL7114097A (en) 1972-04-18
NL175404B (en) 1984-06-01
ES396040A1 (en) 1974-04-01
AT311271B (en) 1973-11-12
BE773941A (en) 1972-04-14
RO66578A (en) 1981-07-30
NL175404C (en) 1984-11-01
DE2050722C3 (en) 1978-09-14
FR2111448A5 (en) 1972-06-02
IT944744B (en) 1973-04-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee