化工进展Issue(5)：1389-1394,1400,7.DOI:10.16085/j.issn.1000-6613.2015.05.034
不溶性硫黄的制备技术
Preparation of insoluble sulfur
摘要
Abstract
Low temperature melting method was used to produce insoluble sulfur (IS) from normal sulfur. The effects of polymerization conditions,addition of stabilizer,selections of treatment oil and extractant on content and yield of IS and on high temperature stability were studied. The proper polymerization conditions were:reaction temperature 260℃,reaction time 1h,deionized water at room temperature as quenching solvent,solidifying temperature 60℃,solidifying time 4h. In this case,IS content in polymerization product reached more than 40%. Solidification of polymerization product,higher extraction temperature,oil-treatment,and addition of stabilizer in the quenching and oil-treating processes were beneficial to improving stability of the products. Stabilizers added to quenching solvent,extractant and treatment oil and their addition amounts were determined respectively. As a result,high temperature stability of IS product at 120℃ was more than 49%,at domestic leading level in the same processes.关键词
不溶性硫黄/聚合/溶解性/溶剂萃取/稳定性Key words
insoluble sulfur/polymerization/solubility/solvent extraction/stability分类
化学化工引用本文复制引用
欧阳福生,郝涛远,李跃,尹春辉..不溶性硫黄的制备技术[J].化工进展,2015,(5):1389-1394,1400,7.
