AU7948091A - Recovery of sodium hydroxide and aluminum hydroxide from etching waste - Google Patents
Recovery of sodium hydroxide and aluminum hydroxide from etching wasteInfo
- Publication number
- AU7948091A AU7948091A AU79480/91A AU7948091A AU7948091A AU 7948091 A AU7948091 A AU 7948091A AU 79480/91 A AU79480/91 A AU 79480/91A AU 7948091 A AU7948091 A AU 7948091A AU 7948091 A AU7948091 A AU 7948091A
- Authority
- AU
- Australia
- Prior art keywords
- recovery
- sodium hydroxide
- hydroxide
- aluminum
- etching waste
- 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.)
- Granted
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
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)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- ing And Chemical Polishing (AREA)
- Removal Of Specific Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Physical Water Treatments (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A method for the recovery and recycling of sodium hydroxide from the waste solution of aluminum etching operations. The method utilizes a dialysis membrane column or stack to initially remove sodium hydroxide from the waste solution and return it to the etch tank base solution sufficiently concentrated to carry on the basic etching operation. The method permits the recovery of salable quantities of aluminum hydroxide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54939690A | 1990-07-06 | 1990-07-06 | |
US549396 | 1990-07-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU7948091A true AU7948091A (en) | 1992-01-09 |
AU634661B2 AU634661B2 (en) | 1993-02-25 |
Family
ID=24192856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU79480/91A Ceased AU634661B2 (en) | 1990-07-06 | 1991-07-01 | Recovery of sodium hydroxide and aluminum hydroxide from etching waste |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0465822B1 (en) |
JP (1) | JPH05115871A (en) |
AT (1) | ATE110123T1 (en) |
AU (1) | AU634661B2 (en) |
CA (1) | CA2043717A1 (en) |
DE (1) | DE69103486T2 (en) |
ES (1) | ES2057668T3 (en) |
MX (1) | MX9100096A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19710563C2 (en) * | 1997-03-14 | 2003-10-02 | Daimler Chrysler Ag | Method and device for operating aluminum milling baths |
CN1298637C (en) * | 2005-08-08 | 2007-02-07 | 南京工业大学 | Method for recycling sodium hydroxide from pigment containing alkali waste liquid |
JP5016973B2 (en) * | 2007-05-21 | 2012-09-05 | 株式会社野坂電機 | Method and apparatus for alkali recovery of alkali etchant |
DE112009003274A5 (en) * | 2008-11-03 | 2012-09-20 | Thomas König | Baking method and dressing |
CN101928948A (en) * | 2010-09-02 | 2010-12-29 | 吉林麦达斯铝业有限公司 | Recovery process of alkaline washing residual liquid for aluminum profile extrusion die |
DE102013105177A1 (en) * | 2013-05-21 | 2014-11-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for obtaining metallic fractions and metal-depleted material from metal-containing materials |
CN104626453A (en) * | 2014-12-05 | 2015-05-20 | 博罗县东明化工有限公司 | Preparation method of aluminum alloy resin composite body and aluminum alloy resin composite body |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3607482A (en) * | 1969-08-11 | 1971-09-21 | Wilson & Co | Process of regeneration of metal treating solutions |
US4136026A (en) * | 1977-11-23 | 1979-01-23 | Aluminum Company Of America | Caustic solution having controlled dissolved aluminum content |
JPS5827984A (en) * | 1981-08-10 | 1983-02-18 | Kurisutaru Eng Kk | Regenerating method for alkali etching solution of aluminum and alloy thereof |
GB8612627D0 (en) * | 1986-05-23 | 1986-07-02 | Ici Plc | Dechlorination of aqueous alkali metal chloride solution |
US4826605A (en) * | 1986-11-03 | 1989-05-02 | Caspian International, Inc. | Process for depleted chemical milling solutions |
-
1991
- 1991-05-31 CA CA002043717A patent/CA2043717A1/en not_active Abandoned
- 1991-06-03 DE DE69103486T patent/DE69103486T2/en not_active Expired - Fee Related
- 1991-06-03 AT AT91109027T patent/ATE110123T1/en not_active IP Right Cessation
- 1991-06-03 EP EP91109027A patent/EP0465822B1/en not_active Expired - Lifetime
- 1991-06-03 ES ES91109027T patent/ES2057668T3/en not_active Expired - Lifetime
- 1991-06-17 JP JP3143745A patent/JPH05115871A/en active Pending
- 1991-07-01 AU AU79480/91A patent/AU634661B2/en not_active Ceased
- 1991-07-05 MX MX9100096A patent/MX9100096A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE110123T1 (en) | 1994-09-15 |
CA2043717A1 (en) | 1992-01-07 |
AU634661B2 (en) | 1993-02-25 |
EP0465822B1 (en) | 1994-08-17 |
MX9100096A (en) | 1992-02-28 |
ES2057668T3 (en) | 1994-10-16 |
EP0465822A1 (en) | 1992-01-15 |
DE69103486D1 (en) | 1994-09-22 |
JPH05115871A (en) | 1993-05-14 |
DE69103486T2 (en) | 1994-12-08 |
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