ITMI911678A0 - PROCEDURE FOR THE ELIMINATION OF ALUMINUM FROM ALUMINUM TREATMENT ACID BATH CONTAINING FLUORIDES AND FOR THE RECOVERY OF FLUORIDRIC ACID - Google Patents

PROCEDURE FOR THE ELIMINATION OF ALUMINUM FROM ALUMINUM TREATMENT ACID BATH CONTAINING FLUORIDES AND FOR THE RECOVERY OF FLUORIDRIC ACID

Info

Publication number
ITMI911678A0
ITMI911678A0 IT91MI1678A ITMI911678A ITMI911678A0 IT MI911678 A0 ITMI911678 A0 IT MI911678A0 IT 91MI1678 A IT91MI1678 A IT 91MI1678A IT MI911678 A ITMI911678 A IT MI911678A IT MI911678 A0 ITMI911678 A0 IT MI911678A0
Authority
IT
Italy
Prior art keywords
aluminum
acid
elimination
recovery
procedure
Prior art date
Application number
IT91MI1678A
Other languages
Italian (it)
Inventor
Franco Falcone
Antonio Vignati
Paolo Marzatico
Original Assignee
Paolo Granata & C
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 Paolo Granata & C filed Critical Paolo Granata & C
Priority to ITMI911678A priority Critical patent/IT1248083B/en
Publication of ITMI911678A0 publication Critical patent/ITMI911678A0/en
Publication of ITMI911678A1 publication Critical patent/ITMI911678A1/en
Application granted granted Critical
Publication of IT1248083B publication Critical patent/IT1248083B/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
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ITMI911678A 1991-06-19 1991-06-19 Process for the removal of aluminium from acid baths for the treatment of aluminium containing fluorides and for the recovery of hydrofluoric acid. IT1248083B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI911678A IT1248083B (en) 1991-06-19 1991-06-19 Process for the removal of aluminium from acid baths for the treatment of aluminium containing fluorides and for the recovery of hydrofluoric acid.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI911678A IT1248083B (en) 1991-06-19 1991-06-19 Process for the removal of aluminium from acid baths for the treatment of aluminium containing fluorides and for the recovery of hydrofluoric acid.

Publications (3)

Publication Number Publication Date
ITMI911678A0 true ITMI911678A0 (en) 1991-06-19
ITMI911678A1 ITMI911678A1 (en) 1992-12-19
IT1248083B IT1248083B (en) 1995-01-05

Family

ID=11360149

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI911678A IT1248083B (en) 1991-06-19 1991-06-19 Process for the removal of aluminium from acid baths for the treatment of aluminium containing fluorides and for the recovery of hydrofluoric acid.

Country Status (1)

Country Link
IT (1) IT1248083B (en)

Also Published As

Publication number Publication date
IT1248083B (en) 1995-01-05
ITMI911678A1 (en) 1992-12-19

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970626