| 摘要 |
<p>A process, and system for carrying out said process, for the purification of hydrochloric acid containing chlorine and organic impurities, has been devised wherein a crude aqueous hydrochloric acid is charged to a coalesing zone wherein the acid passes through a porous coalescing means whereby the insoluble organic impurities are coalesced and separated from the aqueous hydrochloric acid by gravity, and the partially purified aqueous hydrochloric acid fraction containing dissolved chlorine and soluble organic matter is charged to a stripping zone and simultaneously contacted therein with a stream of inert gas, e.g., air, to effect the removal of substantially all of the dissolved chlorine and soluble organic material from the aqueous hydrochloric acid. Purified hydrochloric acid is recovered from the stripping zone. Chlorine gas removed from the hydrochloric acid may be recovered from the inert gas stream and reused.</p> |
