Method and equipment for smelting non-ferrous metal...

Details Method and equipment for smelting non-ferrous metal... Method and equipment for smelting non-ferrous metal...

2005-05-03

2005-05-03

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C266S159000, C266S177000

Reexamination Certificate

active

06887298

ABSTRACT:
The present invention relates to a method and equipment, whereby matte with a high non-ferrous metal content and disposable slag are produced simultaneously in a suspension-smelting furnace from non-ferrous sulphide concentrate. According to the invention, a carbonaceous reducing agent is charged to the lower furnace of a suspension smelting furnace via tuyeres to the part of the furnace which has a reduced cross-sectional area.

REFERENCES:
patent: 4283045 (1981-08-01), Melcher et al.
patent: 4470845 (1984-09-01), Yannopoulos
patent: 4645186 (1987-02-01), Hanniala
patent: 4857104 (1989-08-01), Victorovich et al.
patent: 5458672 (1995-10-01), Ding
patent: 5662730 (1997-09-01), Akagi et al.
patent: 58-221241 (1983-12-01), None
patent: 59-050132 (1994-03-01), None
patent: 09-316562 (1997-12-01), None
Abstract for JP 90024898: Dialog File351: Derwent WPI AccNo. 1984-172960, Apr. 28, 1984.
Abstract for 58-221241; Dialog File347 Japio PubNo. 58-221241, Dec. 22, 1983.
Abstract for 09-316562 Dialog File 347 Japio PubNo. 09-316562, Dec. 9, 1997.

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