GB1007264A - A process for purifying waste liquors containing nitrocresols - Google Patents

A process for purifying waste liquors containing nitrocresols

Info

Publication number
GB1007264A
GB1007264A GB5927/64A GB592764A GB1007264A GB 1007264 A GB1007264 A GB 1007264A GB 5927/64 A GB5927/64 A GB 5927/64A GB 592764 A GB592764 A GB 592764A GB 1007264 A GB1007264 A GB 1007264A
Authority
GB
United Kingdom
Prior art keywords
nitrocresols
waste liquors
purifying waste
liquors containing
dioxane
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
GB5927/64A
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.)
Bayer AG
Original Assignee
Bayer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7097637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1007264(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1007264A publication Critical patent/GB1007264A/en
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
    • B01J41/04—Processes using organic exchangers
    • B01J41/05—Processes using organic exchangers in the strongly basic form

Abstract

Nitrocresols recovered in acetone, dioxane or tetrahydrofuran as washings from ion-exchangers is acidified and the organic solvent distilled off when the nitrocresol collects as an oil. Specifications 867,449 and 885,717 are referred to.ALSO:Ion exchangers used for removing nitrocresols from waste liquors are regenerated with mineral acids and acetone, dioxane or tetrahydrofuran. Specifications 867,449 and 885,717 are referred to.
GB5927/64A 1963-02-27 1964-02-12 A process for purifying waste liquors containing nitrocresols Expired GB1007264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF39124A DE1221994B (en) 1963-02-27 1963-02-27 Process for cleaning waste water from plants for the nitration of aromatic hydrocarbons

Publications (1)

Publication Number Publication Date
GB1007264A true GB1007264A (en) 1965-10-13

Family

ID=7097637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5927/64A Expired GB1007264A (en) 1963-02-27 1964-02-12 A process for purifying waste liquors containing nitrocresols

Country Status (4)

Country Link
BE (1) BE644084A (en)
DE (1) DE1221994B (en)
GB (1) GB1007264A (en)
NL (1) NL6401839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092283A (en) * 1973-12-18 1975-07-23

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011082974A1 (en) * 2009-12-16 2011-07-14 Basf Se Acid sludge adsorption of dnt waste water
BR112013018303B1 (en) * 2011-01-31 2021-03-09 Basf Se process to prevent precipitation of nitro-aromatic salts from the nitrated crude products, and, production facility to nitrate nitrable aromatic compounds
US9249083B2 (en) 2012-04-25 2016-02-02 Basf Se Process for scrubbing dinitrotoluene
PT2841412E (en) 2012-04-25 2016-06-02 Meissner Gmbh & Co Kg Josef Method for washing dinitrotoluene

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13491C (en) * CH. W. HARRISON in London Innovations in electric lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092283A (en) * 1973-12-18 1975-07-23

Also Published As

Publication number Publication date
DE1221994B (en) 1966-07-28
NL6401839A (en) 1964-08-28
BE644084A (en) 1964-06-15

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