FR2426020A1 - Fabrication d'alumine a partir des residus de traitement de surface de pieces en aluminium - Google Patents
Fabrication d'alumine a partir des residus de traitement de surface de pieces en aluminiumInfo
- Publication number
- FR2426020A1 FR2426020A1 FR7815360A FR7815360A FR2426020A1 FR 2426020 A1 FR2426020 A1 FR 2426020A1 FR 7815360 A FR7815360 A FR 7815360A FR 7815360 A FR7815360 A FR 7815360A FR 2426020 A1 FR2426020 A1 FR 2426020A1
- Authority
- FR
- France
- Prior art keywords
- solns
- waste
- anodising
- pickling
- filtering
- 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
- 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
- C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
a Secteur technique : traitement des résidus des bains usés basiques et des bains usés acides ayant servi au décapage et à l'anodisation de pièces en aluminium. b. Caractéristiques : on fait réagir le bain basique ayant une teneur de 60 g Al/l avec le bain acide ayant une teneur de 10 g Al/l dans la proportion en volume de 59 % du premier pour 41 % du second. Ladite proportion étant contrôlée par le pH du produit de réaction maintenu à 8,5. c. Applications : élimination des rejets polluants et obtention d'alumine à titre de sous-produits nobles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7815360A FR2426020A1 (fr) | 1978-05-17 | 1978-05-17 | Fabrication d'alumine a partir des residus de traitement de surface de pieces en aluminium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7815360A FR2426020A1 (fr) | 1978-05-17 | 1978-05-17 | Fabrication d'alumine a partir des residus de traitement de surface de pieces en aluminium |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2426020A1 true FR2426020A1 (fr) | 1979-12-14 |
FR2426020B1 FR2426020B1 (fr) | 1981-01-23 |
Family
ID=9208612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7815360A Granted FR2426020A1 (fr) | 1978-05-17 | 1978-05-17 | Fabrication d'alumine a partir des residus de traitement de surface de pieces en aluminium |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2426020A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002036492A1 (fr) * | 2000-10-31 | 2002-05-10 | Heiko Weber | Procede d'evacuation de dechets produits dans une usine d'anodisation d'aluminium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3738868A (en) * | 1972-01-07 | 1973-06-12 | Lancy Labor Inc | Waste treatment of aluminum containing solutions |
US3864461A (en) * | 1972-08-29 | 1975-02-04 | Laporte Industries Ltd | Process for the production of alumina |
US3890226A (en) * | 1973-03-14 | 1975-06-17 | Kurita Water Ind Ltd | Method of treating aluminum-containing waste water |
-
1978
- 1978-05-17 FR FR7815360A patent/FR2426020A1/fr active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3738868A (en) * | 1972-01-07 | 1973-06-12 | Lancy Labor Inc | Waste treatment of aluminum containing solutions |
US3864461A (en) * | 1972-08-29 | 1975-02-04 | Laporte Industries Ltd | Process for the production of alumina |
US3890226A (en) * | 1973-03-14 | 1975-06-17 | Kurita Water Ind Ltd | Method of treating aluminum-containing waste water |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002036492A1 (fr) * | 2000-10-31 | 2002-05-10 | Heiko Weber | Procede d'evacuation de dechets produits dans une usine d'anodisation d'aluminium |
Also Published As
Publication number | Publication date |
---|---|
FR2426020B1 (fr) | 1981-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |