NL7604855A - By product recovery during prepn of titania - by fractional sepn of metallic ions with org solvents - Google Patents

By product recovery during prepn of titania - by fractional sepn of metallic ions with org solvents

Info

Publication number
NL7604855A
NL7604855A NL7604855A NL7604855A NL7604855A NL 7604855 A NL7604855 A NL 7604855A NL 7604855 A NL7604855 A NL 7604855A NL 7604855 A NL7604855 A NL 7604855A NL 7604855 A NL7604855 A NL 7604855A
Authority
NL
Netherlands
Prior art keywords
ions
soln
organic solvent
extract
sepn
Prior art date
Application number
NL7604855A
Other languages
Dutch (nl)
Original Assignee
Solex Res Corp Japan
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
Priority claimed from JP50055048A external-priority patent/JPS51142498A/en
Priority claimed from JP50089433A external-priority patent/JPS585989B2/en
Priority claimed from JP14486175A external-priority patent/JPS5268099A/en
Application filed by Solex Res Corp Japan filed Critical Solex Res Corp Japan
Publication of NL7604855A publication Critical patent/NL7604855A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Titanium dioxide is made by a process comprising (1) adding an organic solvent (A) to an aq. soln. which has been previously treated after dissolution of primary matls., with sulphuric acid to extract metallic ions such as Cr3+ and Nb5+; (2) sepg. Ti ions from the aq. soln. formed by hydrolysis according to known methods; (3) adding an organic solvent (B) to the aq. soln. formed to extract the Ti ions; (4) adding an organic solvent (C) to the aq. soln. formed to extract as Fe3+ ions remaining after oxidn. of Fe2+ ions and sepn. of the Ti ions; (5) adding an organic solvent (d) to the aq. soln. formed to extract V ions by extracting practically all the heavy metal ions and using the regenerated acid to dissolve the primary matl. at the beginning of the concn. process. Numerous valuable by-prods. of the extraction of TiO2 from ilmenite, steel making slags etc., are recovered while the amt. of H2SO4 used is reduced drastically with considerable cost reductions, and reducing or avoiding pollution altogether.
NL7604855A 1975-05-06 1976-05-06 By product recovery during prepn of titania - by fractional sepn of metallic ions with org solvents NL7604855A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP50055048A JPS51142498A (en) 1975-05-06 1975-05-06 The production of titanium oxide by sulfuric acid method without the f ormation of ferric sulfate and waste acids.
JP50089433A JPS585989B2 (en) 1975-07-21 1975-07-21 Yukiyo Bio-Site FE
JP14486175A JPS5268099A (en) 1975-12-04 1975-12-04 Recovery process for waste sulfuric acid

Publications (1)

Publication Number Publication Date
NL7604855A true NL7604855A (en) 1976-11-09

Family

ID=27295478

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7604855A NL7604855A (en) 1975-05-06 1976-05-06 By product recovery during prepn of titania - by fractional sepn of metallic ions with org solvents

Country Status (1)

Country Link
NL (1) NL7604855A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed