Process for processing hydrogen chloride from isocyanate production

A process for processing hydrogen chloride from isocyanate preparation, comprising the steps of: a) providing hydrogen chloride; b) purifying the provided hydrogen chloride; and step c) or step d): c) contacting the purified hydrogen chloride with water and/or with hydrochloric acid which is unsaturated with respect to the ingestion of hydrogen chloride; d) further processing the purified hydrogen chloride into chlorine gas by partial oxidation, the hydrogen chloride provided in step a) containing organic and/or nitrogen-containing impurities; the purification is carried out by contacting hydrogen chloride at least in a first gas scrubber (10) with hydrochloric acid which is saturated to a degree of > = 90% with respect to the intake of hydrogen chloride and circulating the hydrochloric acid at least partially through the first gas scrubber (10). 一种加工来自异氰酸酯制备的氯化氢的方法，包括步骤：a)提供氯化氢；b)纯化提供的氯化氢；以及步骤c)或步骤d)：c)使纯化的氯化氢与水和/或与就摄入氯化氢而言不饱和的盐酸接触d)通过部分氧化将纯化的氯化氢进一步加工成氯气步骤a)中提供的氯化氢含有有机和/或含氮杂质并且在步骤b)中，纯化通过使氯化氢至少在第一气体洗涤器(10)中与