Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1986-06-02
1987-07-07
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
134 3, 134 41, 156903, 252 792, 252 794, C23F 100, B44C 122
Patent
active
046785418
ABSTRACT:
Baths for chemical polishing of stainless steel surfaces, comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid and nitric acid, ferricyanide complex ions and an additive capable of decomposing nitrous acid.
The baths can be used in particular for chemical polishing of heat exchangers with a very large exchange surface.
REFERENCES:
patent: 2662814 (1953-12-01), Swihart
patent: 3565688 (1971-02-01), Costelloe et al.
patent: 3709824 (1973-01-01), Oda et al.
patent: 4402759 (1983-09-01), Tytgat
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 12, pp. 25-26, 31-32.
Tegart, The Electrolytic and Chemical Polishing of Metals in Research and Industry, pp. 96-109.
Tegart, Polissage Electrolytique et Chimique des Metaux au Laboratoire et Dans L'Industrie, pp. 122-137, 1960.
Lefevre Pierre
Tytgat Daniel
Powell William A.
Solvay & Cie. (Societe Anonyme)
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