Dissolution of metals-utilizing H.sub.2 O.sub.2 -H.sub.2 SO.sub.

Details Dissolution of metals-utilizing H.sub.2 O.sub.2 -H.sub.2 SO.sub. Dissolution of metals-utilizing H.sub.2 O.sub.2 -H.sub.2 SO.sub.

1977-11-08

1978-12-19

Massie, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156664, 252 792, 252 794, 423272, C09K 1306, C23F 100

Patent

active

041304551

ABSTRACT:
Improved metal dissolution rates are obtained when using a solution containing sulfuric acid, hydrogen peroxide and a catalytic amount of a thiosulfate of sodium or potassium.

REFERENCES:
patent: 3597290 (1971-08-01), Naito
patent: 3773577 (1973-11-01), Shibasaki et al.
patent: 3902896 (1975-09-01), Borbely et al.
patent: 3959436 (1976-05-01), Watts
Litvinenko et al, "Mechanism of Catalytic Oxidation of some Substrates by Hydrogen Peroxide", Chem. Abstract, vol. 83 (1975), p. 339.
Korosteleva et al, "Preparation . . . Hydrogen Peroxide-Sodium Thiosulfate", Chemical Abstract, vol. 83 (1975) p. 11.
Ohishi et al, "Black Dyeing Agent for Iron", Chemical Abstract vol. 80 (1974) p. 157.

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