经过比较认为液相塔式氯化技术更具竞争力。
After comparison, it considered that liquid phase tower chlorination technology had much competition.
设计了以国内生产的间甲酚为原料，经过乙酰化、氯化、再酯化和醇解等四步合成间羟基苯甲醇的合成路线。
A new route to synthesize the target compound starting from m-cresol, which undergoes four steps including acetylation, chloration, esterification, and alcoholysis was proposed.
以H_2SO_4处理四甲基氯化铵的有机溶液，立即生成沉淀，经过滤、洗涤、干燥后，得到白色结晶状固体——TMAHS。
To treat tetramethyl ammonium chloride with H2SO4 in organic solvent, a precipitate is produced. A white crystallizing solid TMAHS is prepared after filtrating, washing and drying.
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