Solution and method for removing zinc from the surface of a galv

Details Solution and method for removing zinc from the surface of a galv Solution and method for removing zinc from the surface of a galv

1992-08-17

1993-09-07

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, 156664, 252 794, B44C 122, C23F 100, C09K 1306

Patent

active

052425428

ABSTRACT:
The invention relates to a solution for removing zinc on the surface of a galvanized metal part, said solution comprising: phosphoric acid; alcohol of formula R--OH where R is an alkyl radical having from 1 to 6 carbon atoms; hydroquinone; and water. The invention also relates to a method for removing zinc on the surface of a galvanized metal part, said method comprising the steps of: preparing a solution containing phosphoric acid, alcohol of formula R--OH where R is an alkyl radical having from 1 to 6 carbon atoms, hydroquinone, and water; dipping said part in a bath of said solution; and removing said part from said bath and rinsing it.

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