GB1503764A - Process for removing water-soluble ionic compounds from aqueous solutions by means of ultrafiltration - Google Patents

Process for removing water-soluble ionic compounds from aqueous solutions by means of ultrafiltration

Info

Publication number
GB1503764A
GB1503764A GB4532275A GB4532275A GB1503764A GB 1503764 A GB1503764 A GB 1503764A GB 4532275 A GB4532275 A GB 4532275A GB 4532275 A GB4532275 A GB 4532275A GB 1503764 A GB1503764 A GB 1503764A
Authority
GB
United Kingdom
Prior art keywords
ionic compounds
aqueous solutions
ultrafiltration
removing water
soluble ionic
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
GB4532275A
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
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1503764A publication Critical patent/GB1503764A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/16—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The removal of water-soluble ionic compounds from aqueous solutions is described. To the aqueous solutions is first added a water-soluble salt former which is oppositely charged with respect to the ionic compounds to be removed. Ultrafiltration under pressure is then carried out. The process for removing water-soluble ionic compounds can be used for the purification of effluents from dyeworks and tanneries.
GB4532275A 1975-02-26 1975-10-31 Process for removing water-soluble ionic compounds from aqueous solutions by means of ultrafiltration Expired GB1503764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752508246 DE2508246A1 (en) 1975-02-26 1975-02-26 PROCESS FOR THE REMOVAL OF WATER-SOLUBLE IONIC COMPOUNDS FROM AQUATIC SOLUTIONS BY ULTRAFILTRATION

Publications (1)

Publication Number Publication Date
GB1503764A true GB1503764A (en) 1978-03-15

Family

ID=5939831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4532275A Expired GB1503764A (en) 1975-02-26 1975-10-31 Process for removing water-soluble ionic compounds from aqueous solutions by means of ultrafiltration

Country Status (10)

Country Link
JP (1) JPS51110483A (en)
BE (1) BE838926A (en)
BR (1) BR7601184A (en)
CH (1) CH617911A5 (en)
DE (1) DE2508246A1 (en)
ES (1) ES445507A1 (en)
FR (1) FR2302122A1 (en)
GB (1) GB1503764A (en)
IN (1) IN142701B (en)
NL (1) NL7601995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145485A (en) * 1990-03-15 1992-09-08 Bayer Aktiengesellschaft Process for the preparation of stable dyestuff solutions: pressure permeation in presence of boric acid or borate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619727A1 (en) * 1987-09-01 1989-03-03 Univ Paris Curie Process for membrane filtration of a solution containing small-sized ionic particles
FR2683811B1 (en) * 1991-11-20 1994-05-20 Armines METHOD FOR DEIONIZING AN AQUEOUS LIQUID AND APPLICATION.
CN1910241B (en) * 2003-12-04 2012-01-25 克莱里安特财务(Bvi)有限公司 Concentrated aqueous compositions of dyestuffs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519558A (en) * 1968-02-15 1970-07-07 Abcor Inc Separation of similar solutes using a semipermeable membrane
DE1945749A1 (en) * 1968-09-27 1970-04-02 Monsanto Co Process for removing phenols and / or metals from an aqueous medium
DE2203008B1 (en) * 1972-01-22 1973-05-17 Hager & Elsaesser METHOD AND DEVICE FOR PROCESSING WASTE WATER
GB1424702A (en) * 1972-04-27 1976-02-11 Kanebo Ltd Method of decolourizing waste coloured aqueous liquid
CH572449A5 (en) * 1972-06-23 1976-02-13 Ciba Geigy Ag
DE2303081A1 (en) * 1973-01-23 1974-07-25 Ernst Prof Dr Bayer Metal ions concn or sepn in soln - using soluble macromolecular cpds contg. metal ion binding gps, for simplicity and high enrichment factors
CH566798A5 (en) * 1973-05-29 1975-09-30 Battelle Memorial Institute
JPS5745633B2 (en) * 1973-12-08 1982-09-29
DE2503169B1 (en) * 1975-01-27 1976-06-16 Bayer Ag SEWAGE REMOVAL PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145485A (en) * 1990-03-15 1992-09-08 Bayer Aktiengesellschaft Process for the preparation of stable dyestuff solutions: pressure permeation in presence of boric acid or borate

Also Published As

Publication number Publication date
CH617911A5 (en) 1980-06-30
JPS51110483A (en) 1976-09-30
ES445507A1 (en) 1977-06-01
NL7601995A (en) 1976-08-30
FR2302122A1 (en) 1976-09-24
IN142701B (en) 1977-08-13
BE838926A (en) 1976-08-25
DE2508246A1 (en) 1976-09-09
BR7601184A (en) 1976-09-14

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Legal Events

Date Code Title Description
PS Patent sealed