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Title: Production of chlorine from chloride salts

Abstract

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.

Inventors:
 [1]
  1. (Kennewick, WA)
Issue Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
863894
Patent Number(s):
4269817
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /423/

Citation Formats

Rohrmann, Charles A. Production of chlorine from chloride salts. United States: N. p., 1981. Web.
Rohrmann, Charles A. Production of chlorine from chloride salts. United States.
Rohrmann, Charles A. Thu . "Production of chlorine from chloride salts". United States. https://www.osti.gov/servlets/purl/863894.
@article{osti_863894,
title = {Production of chlorine from chloride salts},
author = {Rohrmann, Charles A.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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