Exothermic lining for metallurgical purposes

Details Exothermic lining for metallurgical purposes Exothermic lining for metallurgical purposes

C - Chemistry, Metallurgy

09

K

53/103, 44/3

C09K 5/02 (2006.01) B22D 7/10 (2006.01) C09K 5/00 (2006.01) C21C 7/00 (2006.01)

Patent

CA 1052099

ABSTRACT OF THE DISCLOSURE An exothermic lining material for metallurgical purposes comprises 40-60 % of aluminium dross, 1-12 % of fibrous filler which may be inorganic or a mixture of inorganic and organic materials, 3-6 % of binder, such as a phenoplast and up to 1 % of wetting agent. In order to make the lining exothermic it contains 7-25 % aluminium powder and/or aluminium swarf, 3-15 % iron oxide and/or manganese dioxide and not exceeding 6 % cryolite. The lining may be made by a dry process in which flakes or pellets of the composition are pressed to a desired shape or by a wet process in which the aluminium dross is added to an aqueous preparation of the fibrous filler and wetting agent, whereafter the other components are added.

223426

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