以苯酚和硫酸为原料，在催化剂的存在下合成了双酚s。
High - purity bisphenol - Sis synthesized with phenol and sulfuric acid as materials in the presence of a catalyst.
当采用釜式间歇甲酯化反应时，浓硫酸为适宜的催化剂。
When a stirred tank batch process is used, the appropriate catalyst is sulphuric acid.
以大庆黑帝庙稠油为原料，发烟硫酸为磺化剂，合成了稠油磺酸盐。
A new surfactant heavy crude oil sulfonates (HCOS) was synthesized from Daqing Heidimiao oil with fuming sulfuric acid.
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