2003•Polyvinyl ChlorideRequires access
The application of new technologies to the production of hydrogen chloride
WU Ya-juan
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Abstract
A self-designed 30 kt/a hydrogen chloride (31 wt% hydrochloric acid,single unit) synthesis plant of Qingdao Haijing Chemical Industry Group Co.,Ltd. is introduced.The plant has characteristics of short flow path,open-type steel frame construction,good quality of equipment materials,large producing capacity per unit,adopting DCS control system,long-distance transport of hydrogen chloride gas and etc.From April,2000 to December,2001,51 kt technical hydrochloric acid and high-purity hydrochloric acid are produced totally,and the amount of hydrogen chloride transported to PVC system is equal to 110 kt hydrochloric acid (31 wt%).This plant is suitable for PVC production by carbide process.