Chlorination of copper, lead, zinc, iron, silver and gold

Details Chlorination of copper, lead, zinc, iron, silver and gold Chlorination of copper, lead, zinc, iron, silver and gold

1984-06-12

1986-03-18

Metz, Andrew H.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423 46, 423 89, 423 99, 423462, 423493, 423494, C01G 2116, C01G 904, C01G 304, C01G 500

Patent

active

045768129

ABSTRACT:
This invention relates to a process for making the chloride of a metal from the sulfide of said metal in the absence of air and for a metal selected from copper, iron, lead, zinc, silver and gold. The process consists of three broad steps. First, forming an intimate mixture of finely divided sulfides of the metals with finely divided chlorides, the latter being in an anhydrous state. Second, heating the mixture to a temperature at which there is a rapid reaction converting the metal sulfides to chlorides and elemental sulfur in the state of a solid aggregate mixture. Third, recovering the formed metal chlorides from the aggregate mixture by conventional means.

REFERENCES:
patent: 1917231 (1933-07-01), Bacon et al.
patent: 1937661 (1933-12-01), Meyer
patent: 1946325 (1934-02-01), Levy
patent: 3906074 (1975-09-01), Spreckelmeyer
patent: 3988417 (1976-10-01), Polinsky
patent: 3990891 (1976-11-01), Sandberg et al.
patent: 4209501 (1980-06-01), Kruesi

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