Pickling agent

Details Pickling agent Pickling agent

1986-08-11

1987-12-01

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 25, 252 28, 252 29, 252 30, 252 42, 252 11, C10M12500

Patent

active

047103078

ABSTRACT:
Agent for the pickling of and as an antioxidant for workpieces made of iron and steel in the case of when they are subjected to non-cutting, hot transformation. The agent is used in dry form. The agent contains: (a) 20 to 80 percent by weight of a pickling-effective compound, such as, sodium metaborate; (b) 1 to 80 percent by weight of a component, such as, graphite; and (c) zero to 79 percent by weight of at least one substance selected from group (d), (e) and/or (f). Zero to 35 percent by weight of group (d), such as, coke, can be used as substance (c) and, for example, act as antioxidants. Zero to 50 percent by weight of group (e), such as, sodium chloride, can be used as substance (c), and control the physical characteristics. Zero to 5 percent by weight of group (f), such as, ammonium chloride, can be used as substance (c) and, for example, act on the reduction of the oxides of group (a).

REFERENCES:
patent: 3198735 (1965-08-01), Lamson et al.
patent: 3244625 (1966-04-01), Silwones
patent: 3912639 (1975-10-01), Adams
patent: 4039337 (1977-08-01), Brown et al.
patent: 4088585 (1978-05-01), Karpen
patent: 4104178 (1978-08-01), Jain et al.
patent: 4402838 (1983-09-01), Eguchi et al.

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