IT202200010520A1 - Processo di rigenerazione di soluzioni per fresatura chimica - Google Patents

Processo di rigenerazione di soluzioni per fresatura chimica Download PDF

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Publication number
IT202200010520A1
IT202200010520A1 IT102022000010520A IT202200010520A IT202200010520A1 IT 202200010520 A1 IT202200010520 A1 IT 202200010520A1 IT 102022000010520 A IT102022000010520 A IT 102022000010520A IT 202200010520 A IT202200010520 A IT 202200010520A IT 202200010520 A1 IT202200010520 A1 IT 202200010520A1
Authority
IT
Italy
Prior art keywords
regeneration process
chemical milling
milling solutions
solutions
chemical
Prior art date
Application number
IT102022000010520A
Other languages
English (en)
Inventor
Claudio Marenco
Original Assignee
Green Etching S R L
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 Green Etching S R L filed Critical Green Etching S R L
Priority to IT102022000010520A priority Critical patent/IT202200010520A1/it
Priority to PCT/IB2023/055173 priority patent/WO2023223278A1/en
Publication of IT202200010520A1 publication Critical patent/IT202200010520A1/it

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • 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
    • C23F1/02—Local etching
    • C23F1/04—Chemical milling
    • 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
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/32—Alkaline compositions
    • C23F1/36—Alkaline compositions for etching aluminium or alloys thereof
    • 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
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/22—Light metals
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
IT102022000010520A 2022-05-20 2022-05-20 Processo di rigenerazione di soluzioni per fresatura chimica IT202200010520A1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT102022000010520A IT202200010520A1 (it) 2022-05-20 2022-05-20 Processo di rigenerazione di soluzioni per fresatura chimica
PCT/IB2023/055173 WO2023223278A1 (en) 2022-05-20 2023-05-19 Process for regenerating chemical milling solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000010520A IT202200010520A1 (it) 2022-05-20 2022-05-20 Processo di rigenerazione di soluzioni per fresatura chimica

Publications (1)

Publication Number Publication Date
IT202200010520A1 true IT202200010520A1 (it) 2023-11-20

Family

ID=82942881

Family Applications (1)

Application Number Title Priority Date Filing Date
IT102022000010520A IT202200010520A1 (it) 2022-05-20 2022-05-20 Processo di rigenerazione di soluzioni per fresatura chimica

Country Status (2)

Country Link
IT (1) IT202200010520A1 (it)
WO (1) WO2023223278A1 (it)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486954A (en) * 1966-02-07 1969-12-30 Mc Donnell Douglas Corp Method for etching aluminum
JPS5044940A (it) * 1973-08-24 1975-04-22
WO2005095674A1 (en) 2004-03-31 2005-10-13 G.R. Trattamenti Termici - Grtt S.R.L. Process for recovering caustic soda solutions from pickling of aluminum extrusion matrix
WO2020095191A1 (en) 2018-11-05 2020-05-14 Simet S.R.L. Process for surface treatment of aluminum or aluminum alloys by means of an alkaline chemical bath

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486954A (en) * 1966-02-07 1969-12-30 Mc Donnell Douglas Corp Method for etching aluminum
JPS5044940A (it) * 1973-08-24 1975-04-22
WO2005095674A1 (en) 2004-03-31 2005-10-13 G.R. Trattamenti Termici - Grtt S.R.L. Process for recovering caustic soda solutions from pickling of aluminum extrusion matrix
WO2020095191A1 (en) 2018-11-05 2020-05-14 Simet S.R.L. Process for surface treatment of aluminum or aluminum alloys by means of an alkaline chemical bath

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENZO STRAZZI ET AL: "Alkaline etching of aluminum and its alloys - A new caustic soda recovery system", LIGHT METAL AGE., 24 June 2002 (2002-06-24), US, pages 1 - 22, XP055599515, ISSN: 0024-3345 *

Also Published As

Publication number Publication date
WO2023223278A1 (en) 2023-11-23

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