Effects of concentration of PVB, clearance of scraper, temperature of gelling bath and concentration of acetic acid additive on membrane performance were investigated.
研究了PVB本体浓度、制膜间隙、凝胶浴温度以及乙酸添加剂等因素对PVB不对称超滤膜性能的影响；
The influences of reaction temperature, reaction time, ratios of MSA and ratios of acetic acid have been studied.
研究了反应温度、催化剂用量、反应物比例对反应数率常数的影响。
Reaction temperature as major factor on consumption of acetic acid was found by analysis of operation of PTA unit.
通过对PTA(精对苯二甲酸)装置影响醋酸消耗的分析，认为反应温度对酸耗影响最大。
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