低温法生产不溶性硫磺工艺研究  

Research Insoluble Sulfur Production Process Cryogenically

作　　者：孙科[1] 魏亿萍[1] 丁皓南 张良杰 尹进华[3] Sun Ke Wei Yiping Ding Haonan Zhang Liangjie Yin Jinhua(Shandong Xinhua Pharmaceutical Limited by Share Ltd, Zibo 255005 Qingdao q.k.l.y, science and Technology Advisory Development Co. Ltd, Qingdao 266045 Qingdao University of Science ＆ Technology, Qingdao 266042, China)

机构地区：[1]山东新华制药股份有限公司,山东淄博255005 [2]青岛清科绿源科技咨询开发有限公司,山东青岛266045 [3]青岛科技大学,山东青岛266042

出　　处：《广东化工》2017年第19期38-39,33,共3页Guangdong Chemical Industry

摘　　要：不溶性硫磺学名为硫的均聚物,简称IS,是一种优秀的橡胶硫化剂,目前已成为生产高质量子午线轮胎的专用硫化剂。本文采用低温熔融法生产不溶性硫磺,在研究不溶性硫的稳定性和不溶性硫磺含量的过程中,采用单因素法确定了较适宜的反应温度、反应时间和淬冷效果较好的淬冷液浓度。通过实验得出反应温度在320℃,保温时间2 h,淬火液采用HNO_3-FeCl_3酸性体系,HNO_3浓度2%、FeCl_3浓度0.8%,可得到不溶性硫含量95%以上的高品位不溶性硫磺产品。Sulfur homopolymer is scientific name of insoluble sulfur referred to IS. It is an excellent vulcanizing agent in the rubber industry. It has become an exclusively vulcanizing agent for production of meridional tyre. In this paper, the production of low-temperature melting method insoluble sulfur. In the study of the stability and content of insoluble sulfur, using a single-factor method to determine the optimum reaction temperature, the concentration of quenching liquid, through experiments optimum reaction temperature is 320 ℃, holding time is 2 h, using HNO3-FeCl3 acidic liquid system as quenching liquid, the concentration of HNO3 is 2 %, the concentration of FeCl3 is 0.8 %, obtained the content of insoluble sulfur 95 % or more high-grade insoluble sulfur product.

关 键 词：不溶性硫 稳定性 低温法 

分 类 号：TQ125.11[化学工程—无机化工]