Main Title |
Regeneration of Caustic Soda Etch Solutions for Aluminum. |
Author |
Brown, C. J. ;
|
CORP Author |
Environmental Protection Agency, Washington, DC. |
Publisher |
Jun 82 |
Year Published |
1982 |
Stock Number |
PB95-251062 |
Additional Subjects |
Materials recovery ;
Aluminum hydroxides ;
Precipitation ;
Chemical etching ;
Reprints ;
Alkalies ;
Centrifuging ;
Concentration(Composition) ;
Solutions ;
Byproducts ;
Recycling ;
SIC 3479 ;
Solution regeneration
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB95-251062 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
6p |
Abstract |
The process utilizes precipitation and centrifugation to remove Al(OH)3 from caustic aluminum solutions. When etching aluminum in a solution of caustic soda prior to anodizing, sodium aluminate (NaAl02) increases in concentration in the caustic until a rock-like precipitate of Al(OH)3 drops out of solution. By precipitating Al(OH)3 in a separate crystallization tank without the use of sequestering agents, one obtains a potentially salable byproduct (Al(OH)3) and reduces caustic consumption by recycling recovered caustic. |
Supplementary Notes |
Pub. in Plating and Surface Finishing, p102-105 Jun 82. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Regeneration of Caustic Soda Etch Solutions for Aluminum. |
Category Codes |
68; 71N |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
100/00 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
530501220 |
Origin |
NTIS |
Type |
CAT |