Dissolution of metals utilizing pyrrolidone

Details Dissolution of metals utilizing pyrrolidone Dissolution of metals utilizing pyrrolidone

1983-08-22

1984-03-20

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

1566591, 156664, 252 794, C23F 100, B44C 122, C03C 1500, C03C 2506

Patent

active

044379293

ABSTRACT:
Improved metal dissolution rates are obtained when using a solution containing sulfuric acid, hydrogen peroxide and a catalytic amount of pyrrolidone such as 2-pyrrolidone or N-methyl-2-pyrrolidone.

REFERENCES:
patent: 4141850 (1979-02-01), Reedio et al.
patent: 4236957 (1980-12-01), Valayil et al.

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