CAJ | 학술논문

以普通硫黄为原料，考察了低温熔融法工艺条件、稳定剂的加入、填充油和萃取剂的选择对不溶性硫黄（IS）含量、收率及产品稳定性的影响。结果表明，适宜的聚合工艺条件为：聚合温度为260℃，聚合时间为1h，室温去离子水作为淬冷液，固化温度为60℃，固化时间为4h，硫黄聚合转化为IS可达40%以上；聚合产品的固化过程、提高萃取温度以及在淬冷、萃取、充油过程中稳定剂的加入能较显著提高产品的稳定性；溶剂SL可以替代二硫化碳成为新的萃取剂并确定了其相应的萃取工艺条件。确定了淬冷液、萃取剂、填充油中适宜的稳定剂及其添加量，最终IS产品120℃、15min时的热稳定性达到49%以上，居同类工艺领先水平。
이보통류황위원료，고찰료저온용융법공예조건、은정제적가입、전충유화췌취제적선택대불용성류황（IS）함량、수솔급산품은정성적영향。결과표명，괄의적취합공예조건위：취합온도위260℃，취합시간위1h，실온거리자수작위쉬랭액，고화온도위60℃，고화시간위4h，류황취합전화위IS가체40%이상；취합산품적고화과정、제고췌취온도이급재쉬랭、췌취、충유과정중은정제적가입능교현저제고산품적은정성；용제SL가이체대이류화탄성위신적췌취제병학정료기상응적췌취공예조건。학정료쉬랭액、췌취제、전충유중괄의적은정제급기첨가량，최종IS산품120℃、15min시적열은정성체도49%이상，거동류공예령선수평。
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.