GB1401784A - Decolourisation process - Google Patents

Decolourisation process

Info

Publication number
GB1401784A
GB1401784A GB4292672A GB4292672A GB1401784A GB 1401784 A GB1401784 A GB 1401784A GB 4292672 A GB4292672 A GB 4292672A GB 4292672 A GB4292672 A GB 4292672A GB 1401784 A GB1401784 A GB 1401784A
Authority
GB
United Kingdom
Prior art keywords
sept
polymer
macroreticular
stream
contacting
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
GB4292672A
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.)
Rohm and Haas Co
Original Assignee
Rohm and Haas Co
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 Rohm and Haas Co filed Critical Rohm and Haas Co
Publication of GB1401784A publication Critical patent/GB1401784A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • 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
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/07—Processes using organic exchangers in the weakly acidic form
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0096—Purification; Precipitation; Filtration
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2357/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

1401784 Decolorization process for dyewaste waters ROHM & HAAS CO 15 Sept 1972 [16 Sept 1971] 42926/72 Heading C1C [Also in Division C3] A process for separating dyestuff(s) from aqueous streams comprises contacting the aqueous stream with beads (0À1-3 mm. dia.) of macroreticular, cross-linked polymeric adsorbent, the resin being either a polymer of vinyl, divinyl or trivinyl benzenes or polymers of methacrylates with 0-90% of mono- or diethylenically unsaturated comonomers, the polymer having a porosity of at least 30%, a specific surface area of 100-1000 metres<SP>2</SP> (BET method) and a pore diameter of 20-200 Š; and then contacting the effluent therefrom with a macroreticular weak acid or base ion exchange resin. The stream may also be filtered or finally "polished" with active carbon; the adsorbers may be regenerated by exemplified methods. The dyes removed may be disperse, acid, direct, fibre reactive basic, sulphur, anionic, cationic, neutral, mordant or vat dyestuffs.
GB4292672A 1971-09-16 1972-09-15 Decolourisation process Expired GB1401784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18125971A 1971-09-16 1971-09-16

Publications (1)

Publication Number Publication Date
GB1401784A true GB1401784A (en) 1975-07-30

Family

ID=22663520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4292672A Expired GB1401784A (en) 1971-09-16 1972-09-15 Decolourisation process

Country Status (8)

Country Link
JP (1) JPS4837957A (en)
CA (1) CA992877A (en)
CH (1) CH560168A5 (en)
DE (1) DE2245513A1 (en)
FR (1) FR2153058B1 (en)
GB (1) GB1401784A (en)
IT (1) IT967418B (en)
NL (1) NL7212591A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237101A2 (en) * 1986-03-07 1987-09-16 ENICHEM FIBRE S.p.A. Method for treating liquid effluents deriving from the in-line dyeing of acrylic fibres
WO2002018464A3 (en) * 2000-08-29 2002-06-06 Mallinckrodt Inc Functionalized polymeric media for separation of analytes
CN111115755A (en) * 2018-11-01 2020-05-08 烟台安诺其精细化工有限公司 Treatment method of waste water in production of dye intermediate bromamine acid

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1059661A (en) * 1974-11-11 1979-07-31 Steven L. Rock Decolorization of effluents from pulp mills
FR2299385A1 (en) * 1975-02-03 1976-08-27 Finedoc Sica Sa Anthocyan foodstuff colourings - obtd. from grape marc by treatment with anionic resin
DE2709914C2 (en) * 1977-03-08 1986-10-09 INTERATOM GmbH, 5060 Bergisch Gladbach Liquid metal-cooled nuclear reactor with devices to prevent the convection of metal vapors
JPS55101090A (en) * 1979-01-29 1980-08-01 Tokyo Shibaura Electric Co Shielding plug
CN113603177B (en) * 2021-02-07 2022-09-27 北京航空航天大学 Reconfigurable and regenerative azo dye adsorption method and application thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237101A2 (en) * 1986-03-07 1987-09-16 ENICHEM FIBRE S.p.A. Method for treating liquid effluents deriving from the in-line dyeing of acrylic fibres
EP0237101A3 (en) * 1986-03-07 1988-04-06 ENICHEM FIBRE S.p.A. Method for treating liquid effluents deriving from the in-line dyeing of acrylic fibres
WO2002018464A3 (en) * 2000-08-29 2002-06-06 Mallinckrodt Inc Functionalized polymeric media for separation of analytes
AU2001285152B2 (en) * 2000-08-29 2005-11-17 Avantor Performance Materials, Inc. Functionalized polymeric media for separation of analytes
CN111115755A (en) * 2018-11-01 2020-05-08 烟台安诺其精细化工有限公司 Treatment method of waste water in production of dye intermediate bromamine acid
CN111115755B (en) * 2018-11-01 2022-08-09 烟台安诺其精细化工有限公司 Treatment method of waste water in production of dye intermediate bromamine acid

Also Published As

Publication number Publication date
CA992877A (en) 1976-07-13
JPS4837957A (en) 1973-06-04
NL7212591A (en) 1973-03-20
FR2153058B1 (en) 1976-08-13
DE2245513A1 (en) 1973-03-22
IT967418B (en) 1974-02-28
FR2153058A1 (en) 1973-04-27
CH560168A5 (en) 1975-03-27

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Legal Events

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