Alternative Processes

Abstract

Chlorine is produced not only by the electrolysis of sodium chloride solutions but also from HC1, KC1, and other metal chlorides, by both chemical and electrochemical methods. The amount of chlorine from alternative processes is about 5.9% of the total world production. In the United States, it was about 4.0% of the total in 2002 [1]. Most of this chlorine was from the electrolysis of KC1 in mercury or membrane cells (Table 15.1) and from HC1. Only small amounts are produced by the electrolysis of other metal chlorides.