摘要
为了提高充油型不溶性硫磺的高温稳定性,对环烷基油直接抽提法进行了改进,并探讨了影响高温稳定性的因素。改进方法是:先将不溶性硫磺粗品用CS_2萃取,然后与环烷基油按质量比1:(10～12)混合,加热到60～70℃,恒温搅拌30 min后抽滤。结果表明,与环烷基油直接抽提的工艺相比,产物高温稳定性(105℃经受15,30 min后不溶硫磺分数)提高10%以上;在充油不溶性硫磺产物中,油含量越低,不溶硫含量越高,产物的高温稳定性越好。
A manufacturing method for oil-treated insoluble sulfur was modified by enhancing its hightemperature stability （HS）. The measures include extracting the crude insoluble sulfur with CS2, mixing with paraffin oil in the proportion of 1 ： （10 - 12）, heating to 60 - 70℃ and agitating for 30 min at this temperature, and then extruding. Compared with the traditional method, i. e. , mixing IS with oil directly, the HS from the modified method was improved up to 10%. In the oil-treated insoluble sulfur, the lower the proportion of the oil and the higher the proportion of the insoluble sulfur, the better the HS of the products.
出处
《精细石油化工》
CAS
CSCD
北大核心
2006年第6期13-16,共4页
Speciality Petrochemicals
基金
中国石油大学(华东)研究生院创新基金(S2004-08)。
