Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1974-06-14
1976-01-13
Vertiz, Oscar R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423243, C01B 1700, B01J 800
Patent
active
039325890
ABSTRACT:
This invention comprises a method for the separation of one component or more from a vapor or gas mixture which involves the step of reacting the component to form a complex or thermally decomposible molecule by reaction with a compound adsorbed or otherwise deposited on a solid carrier. Typical of the gas components that can be so removed, and recovered if desired are carbon dioxide, oxygen, nitrogen oxide, carbon monoxide, sulfur dioxide, silicon tetrafluoride, hydrogen sulfide, aromatic hydrocarbons, mercaptans, HCN, HF, HCL, BF.sub.3 and HBr. Compounds which are adsorbed on the solid carrier for reaction with these various components include various carbonates, such as K, Na, Li, Ca, Cd, Ba; various sulfites, such as K, Na, Li, Cd and Ag; fluorides, glyoximes, ferrous and cupric salts, cuprous amine complexes, dioxane, urea, phosphates, chlorinated aromatics, organic nitriles, benzaldehyde, quinols, etc. The reactive compound is deposited on the solid carrier in a molecular film having a thickness of 1/2 to 5 molecules, which molecular layer has particular effectiveness for the purpose of this invention as described herein. The reaction is conducted at temperatures safely below the temperature at which the respective thermally-decomposible molecule is decomposed, and the original compound is subsequently regenerated and the gas component recovered by heating this product molecule above its decomposition temperature.
REFERENCES:
patent: 2403319 (1946-07-01), Williams
patent: 2657119 (1953-10-01), Patton
Heller Gregory A.
Teller Environmental Systems, Inc.
Vertiz Oscar R.
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