Method and apparatus for the production of industrial lead...

Details Method and apparatus for the production of industrial lead... Method and apparatus for the production of industrial lead...

C - Chemistry, Metallurgy

01

G

23/265, 23/397

C01G 21/06 (2006.01) B01J 10/00 (2006.01)

Patent

CA 1185073

ABSTRACT OF THE INVENTION A method and an apparatus for the production of industrial lead oxide involving mixing molten lead and air in a reactor. A particularly advantageous product having a desired particle size can be obtained with a PbO content of considerably more than 99%. The lead flow is introduced in a constant and even manner and the air flow is altered very slightly in order to maintain the predetermined reaction temperature having fluctuations of a maximum of ? 5°C. The constant and steady infeed of the lead flow is achieved by using an apparatus according to the invention. The apparatus which is situated above the reactor, includes a supply vessel charged with molten lead from a melt container, the supply vessel having an exchangeable nozzle which is provided with a control-operated cleaning pin. The nozzle extends into a reaction space and the supply vessel is connected to the melt container via a feed line and an overflow. The nozzle can also be of a known spray nozzle type which is fed with heated compressed air via a line running through the said melt container.

376739

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