NL7507810A - METHOD FOR EXTRACTING PHENOLS FROM WATERY STREAMS. - Google Patents

METHOD FOR EXTRACTING PHENOLS FROM WATERY STREAMS.

Info

Publication number
NL7507810A
NL7507810A NL7507810A NL7507810A NL7507810A NL 7507810 A NL7507810 A NL 7507810A NL 7507810 A NL7507810 A NL 7507810A NL 7507810 A NL7507810 A NL 7507810A NL 7507810 A NL7507810 A NL 7507810A
Authority
NL
Netherlands
Prior art keywords
phenol
extraction
nitrobenzene
solvent
ratio
Prior art date
Application number
NL7507810A
Other languages
Dutch (nl)
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of NL7507810A publication Critical patent/NL7507810A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/16—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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/26—Treatment of water, waste water, or sewage by extraction

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)
  • Physical Water Treatments (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1452729 Extraction of phenols from aqueous streams E I DU PONT DE NEMOURS & CO 24 June 1975 [1 July 1974] 26768/75 Heading C2C A method for the extraction of phenol or nitrophenol(s) or mixtures thereof from aqueous streams in which they are contained comprises the sequential steps of (a) intimately mixing nitrobenzene solvent with the phenolic stream, the pH of the water contained in the intimate admixture being no greater than 5 and the weight ratio of nitrobenzene to phenolic compounds being no less than the saturation ratio (as hereinafter defined); and (b) separating the intimate admixture into a raffinate phase comprising water substantially free of phenol(s) and an extract phase comprising phenolic compounds dissolved in nitrobenzene, the temperature of the extraction being between 5‹ and 75‹ C. By the term "Saturation Ratio" is meant the ratio by weight of solvent to phenol(s) contained in a saturated solution of phenol(s) in the solvent at the extraction temperature.
NL7507810A 1974-07-01 1975-07-01 METHOD FOR EXTRACTING PHENOLS FROM WATERY STREAMS. NL7507810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48515774A 1974-07-01 1974-07-01

Publications (1)

Publication Number Publication Date
NL7507810A true NL7507810A (en) 1976-01-05

Family

ID=23927111

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7507810A NL7507810A (en) 1974-07-01 1975-07-01 METHOD FOR EXTRACTING PHENOLS FROM WATERY STREAMS.

Country Status (7)

Country Link
JP (1) JPS5128360A (en)
BE (1) BE830558A (en)
DE (1) DE2513154A1 (en)
FR (1) FR2277043A1 (en)
GB (1) GB1452729A (en)
IT (1) IT1039577B (en)
NL (1) NL7507810A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587552Y2 (en) * 1978-08-09 1983-02-09 昭和電線電纜株式会社 Laminated insulation paper manufacturing equipment
DE2901261A1 (en) * 1979-01-08 1980-07-24 Ciba Geigy Ag METHOD FOR REMOVING HALOGENED OR NITROGROUPED HYDROCARBONS OR AROMATIC HYDROXY COMPOUNDS FROM WATER
US4925565A (en) * 1988-09-12 1990-05-15 First Chemical Corporation Process for extracting and disposing of nitrophenolic by-products
JPH0617645U (en) * 1992-02-28 1994-03-08 三佐子 高瀬 Sanitary ladle character
EP2067749A1 (en) 2007-11-29 2009-06-10 Total Petrochemicals France Process for purification of an aqueous phase containing polyaromatics

Also Published As

Publication number Publication date
DE2513154A1 (en) 1976-01-22
JPS5128360A (en) 1976-03-10
BE830558A (en) 1975-12-24
FR2277043A1 (en) 1976-01-30
IT1039577B (en) 1979-12-10
GB1452729A (en) 1976-10-13

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