BR8806904A - PROCESS FOR IMPURING IMPURITIES IN BLEACH IN THE BAYER PROCESS - Google Patents

PROCESS FOR IMPURING IMPURITIES IN BLEACH IN THE BAYER PROCESS

Info

Publication number
BR8806904A
BR8806904A BR888806904A BR8806904A BR8806904A BR 8806904 A BR8806904 A BR 8806904A BR 888806904 A BR888806904 A BR 888806904A BR 8806904 A BR8806904 A BR 8806904A BR 8806904 A BR8806904 A BR 8806904A
Authority
BR
Brazil
Prior art keywords
impuring
bleach
impurities
bayer
bayer process
Prior art date
Application number
BR888806904A
Other languages
Portuguese (pt)
Inventor
Gregory P Brown
Otto Tschamper
Original Assignee
Alusuisse
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 Alusuisse filed Critical Alusuisse
Publication of BR8806904A publication Critical patent/BR8806904A/en

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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate
BR888806904A 1987-04-15 1988-04-11 PROCESS FOR IMPURING IMPURITIES IN BLEACH IN THE BAYER PROCESS BR8806904A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH146887 1987-04-15
PCT/CH1988/000076 WO1988007975A1 (en) 1987-04-15 1988-04-11 Process for reducing the impurities in lyes in the bayer process

Publications (1)

Publication Number Publication Date
BR8806904A true BR8806904A (en) 1989-10-31

Family

ID=4211189

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888806904A BR8806904A (en) 1987-04-15 1988-04-11 PROCESS FOR IMPURING IMPURITIES IN BLEACH IN THE BAYER PROCESS

Country Status (8)

Country Link
EP (1) EP0309509A1 (en)
CN (1) CN88102321A (en)
AU (1) AU610158B2 (en)
BR (1) BR8806904A (en)
ES (1) ES2006407A6 (en)
GR (1) GR880100210A (en)
HU (1) HUT52005A (en)
WO (1) WO1988007975A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310553A1 (en) * 1987-10-01 1989-04-05 Alusuisse-Lonza Services Ag Process for the reduction of lye impurities in the Bayer process
US4976838A (en) * 1988-12-01 1990-12-11 Allied-Signal Inc. Method for purification of bases from materials comprising base and salt
US5135626A (en) * 1988-12-01 1992-08-04 Allied-Signal Inc. Method for purification of bases from materials comprising base and salt
WO1990012637A2 (en) * 1989-03-15 1990-11-01 Pulp And Paper Research Institute Of Canada Electrodialytic water splitting process for the treatment of aqueous electrolytes
FR2729305A1 (en) * 1995-01-18 1996-07-19 Atochem Elf Sa REGENERATION OF STRONG ORGANIC ACIDS BY BIPOLAR MEMBRANES
DE19604903A1 (en) * 1996-02-10 1997-08-14 Huels Chemische Werke Ag Process for the separation of lye from condensation resins
US5753097A (en) * 1996-10-03 1998-05-19 Sachem, Inc. Process for purifying hydroxide compounds
US5709790A (en) * 1996-10-03 1998-01-20 Sachem, Inc. Electrochemical process for purifying hydroxide compounds
DE19856376A1 (en) 1998-12-07 2000-06-08 Basf Ag Process for the production or purification of onium hydroxides by means of electrodialysis
CN104016388B (en) * 2014-06-12 2016-03-30 合肥工业大学 A kind of separation method of alumina producing neutral and alkali feed liquid
CN110510714A (en) * 2019-08-26 2019-11-29 北京廷润膜技术开发股份有限公司 A kind of electrodialysis plant and the method using electrodialysis plant separation alkali and salt
CN113044863B (en) * 2021-04-25 2022-06-21 百色学院 Method for improving decomposition rate of seed precipitation in alumina production

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219396A (en) * 1979-08-03 1980-08-26 Allied Chemical Corporation Electrodialytic process
US4238305A (en) * 1979-10-29 1980-12-09 Allied Chemical Corporation Electrodialytic process for the conversion of impure soda values to sodium hydroxide and carbon dioxide
US4592817A (en) * 1984-12-03 1986-06-03 Allied Corporation Electrodialytic water splitting process for gaseous products

Also Published As

Publication number Publication date
CN88102321A (en) 1988-11-02
ES2006407A6 (en) 1989-04-16
AU1543388A (en) 1988-11-04
GR880100210A (en) 1989-01-31
AU610158B2 (en) 1991-05-16
WO1988007975A1 (en) 1988-10-20
EP0309509A1 (en) 1989-04-05
HUT52005A (en) 1990-06-28

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: B01D 61/44 (2006.01), C01F 7/47 (2006.0