Counter-current process for passing a solid particulate reactant

Details Counter-current process for passing a solid particulate reactant Counter-current process for passing a solid particulate reactant

1975-08-18

1978-07-04

Stern, Edward

Chemistry of inorganic compounds

Halogen or compound thereof

Binary fluorine containing compound

423489, 423659, 210 37R, 210 38R, 23252R, C01F 1122, C02B 156, C02B 142, C01B 908

Patent

active

040988732

ABSTRACT:
A solid, particulate reactant is continuously added to a first zone and a liquid reactant is continuously added to a second zone. A conduit between the zones allows the solid and liquid reactants to pass counter-currently between the zones, the reaction being accomplished on contact between the reactants. During steady state operation, a clear layer is established in each zone above a slurry layer of the particles in solution. The clear layer is withdrawn from the top of each zone and introduced at the bottom thereof causing agitation in the slurry layer which promotes the reaction. The solid reactant is withdrawn from the second zone while the spent liquid reactant is withdrawn from the first zone.

REFERENCES:
patent: 2743999 (1956-05-01), Binswanger
patent: 3357788 (1967-12-01), Ross

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