[go: up one dir, main page]

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

Similar Documents

Publication Publication Date Title
SE8000627L (en) SOLUTION EXTRACTION SET AND APPARATUS
NL7507810A (en) METHOD FOR EXTRACTING PHENOLS FROM WATERY STREAMS.
ES2051238A1 (en) Procedure for the use of an oil-foot for obtaining acids, phenols, alcohols and derivatives by means of countercurrent extraction
FI881367A (en) FOERFARANDE FOER SEPARATION AV SAELLSYNTA JORDARTSMETALLER MEDELST VAETSKE-VAETSKEEXTRAKTION.
GB1410450A (en) Process for extracting hops
JPS556460A (en) Extracting and separating method of nickel and cobalt
JPS5433278A (en) Separating method for liquid mixture
ES464827A1 (en) Process for the preparation of copper values from aqueous solutions
ES8504655A1 (en) Removal of insaponifiable water-insoluble impurities from mixture of cyclohexanone and cyclohexanol
KR840002241A (en) Process of making a laxative from senna
JPS5368715A (en) Extraction of hydroxybutylaldehyde
JPS572237A (en) Separation of medical component of corbicula through extraction and composition comprising it
GB1357053A (en) Process for separating dioxin from dioxin-contaminated2,4,5- trichlorophenoxyacetic acid
SU710205A1 (en) Method of group extracting transplutonium elements
JPS55145605A (en) Agent for increasing yield of "shiitake" mushroom
JPS53111001A (en) Separation of mixture of hydrocarbons
SU1822107A1 (en) Method of extractive separation of rare-earth elements
KR830002882A (en) Solvent Extraction to Recover Iron (III) from Eluent
ATE17709T1 (en) PROCESS FOR ISOLATION OF DIHYDROXYBENZENE MONOETHERS FROM REACTION MIXTURES.
JPS5210250A (en) Preparations of cholesta-5,23,24-triene- 3beta -ols
JPS5288579A (en) Method and apparatus of extraction
KR870008586A (en) Method for Purifying Ogalpi Saponin
GB1308026A (en) Method of separating phenylphenols and resorcinol from mixtures containing them
JPS5382660A (en) Extracting and separating method of metal by liquid-liquid extraction
ES362434A1 (en) A procedure to recover a soluble solvent in water. (Machine-translation by Google Translate, not legally binding)