Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkali metal
Patent
1990-10-03
1992-05-05
Morris, Theodore
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkali metal
423181, 423194, 423390, 423395, 423399, C01D 900
Patent
active
051105780
ABSTRACT:
Potassium nitrate is produced by contacting nitric acid with a potassium loaded strong cationic exchange resin. In a preferred embodiment, a solution of potassium nitrate and dilute nitric acid is produced in a continuous liquid solid contacting apparatus. The preferred apparatus is formed of a plurality of resin filled chambers which rotate in and out of periodic fluid communication with fixed feed and discharge ports. The apparatus design allows for continuous supply of a nitric acid solution, potassium chloride regeneration solution, wash solutions, and air streams to ports arranged in zones, so that resin filled chambers pass through the zones to continuously produce a solution containing potassium nitrate and dilute nitric acid. In a preferred embodiment, the solution of potassium nitrate produced is neutralized with potassium hydroxide to convert residual nitric acid to potassium nitrate.
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Monomeros Colombo Venezolanos, S.A. (E.M.A.)
Morris Theodore
Squillante Edward
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