催化氯化法合成氯化石蜡-52的研究

Study on Synthesis of Chlorinated Paraffin - 52 by Catalytic Chloridization

简要介绍了催化氯化反应机理,并以液体石蜡和氯气为原料,选用内设盘管冷却玻璃塔式氯化反应器,在高活性催化剂作用下,催化氯化反应合成了氯化石蜡-52产品。考察了氯化反应器、预热温度、氯气流速、反应温度及反应时间对氯气转化率的影响。结果表明,在预热温度50-55℃、氯气流速500-700 mL／min、反应温度90-100℃及反应时间90～110 min条件下,氯气转化率达95％～97％。将催化氯化法与热氯化法进行技术经济比较,结果表明,催化氯化法反应时间比热氯化法大大缩短,原料消耗和能耗都低于热氯化法,投资成本和生产成本分别是热氯化法的70％和75％左右。

Chlorinated paraffin- 52 was synthesized from liquid paraffin and chlorine gas as raw materials in the presence of high active catalyst in the chlofidization reactor. The mechanism of catalytic chloridization was briefly introduced. The effects of chloridization reactor, preheat temperature, chlorine flow rate, reaction temperature and reaction time on the conversion of chlorine gas were examined. The result showed that the conversion of chlorine gas could be in the range of 95 % -97% under the optimum reaction conditions as follows： preheat temperature 50 - 55℃, chlorine flow rate 500 - 700 mL/min, reaction temperature 90 - 100 ℃, reaction time 90 - 110 minutes.The technical economy between catalytic chloridization and heat chloridization was compared and the result showed that reaction time for catalytic chloridization was much shorter than the one for heat chloridizaton as well as consumption of raw material and energy, and investiment and production cost.