Production of chlorine from chloride salts

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863894

Rohrmann, Charles A ^[1]

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1. Kennewick, WA

A process for converting chloride salts and sulfuric acid to sulfate salts and elemental chlorine is disclosed. A chloride salt and sulfuric acid are combined in a furnace where they react to produce a sulfate salt and hydrogen chloride. Hydrogen chloride from the furnace contacts a molten salt mixture containing an oxygen compound of vanadium, an alkali metal sulfate and an alkali metal pyrosulfate to recover elemental chlorine. In the absence of an oxygen-bearing gas during the contacting, the vanadium is reduced, but is regenerated to its active higher valence state by separately contacting the molten salt mixture with an oxygen-bearing gas.

• Research Organization: Battelle Memorial Institute, Columbus, OH (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): US 4269817
• OSTI ID: 863894
• Country of Publication: United States
• Language: English

Related Subjects

production
chlorine
chloride
salts
process
converting
sulfuric
acid
sulfate
elemental
disclosed
salt
combined
furnace
react
produce
hydrogen
contacts
molten
mixture
containing
oxygen
compound
vanadium
alkali
metal
pyrosulfate
recover
absence
oxygen-bearing
gas
contacting
reduced
regenerated
active
valence
separately
oxygen compound
metal sulfate
salt mixture
mixture containing
alkali metal
molten salt
sulfuric acid
hydrogen chloride
chloride salt
chloride salts
bearing gas
sulfate salt
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