Sunday, May 7, 2023
Friday, September 15, 2023
除去氯化氢气体中的水蒸气通常用()A、31%HClB、30%NaOHC、98%H2SO4D、15%HNO3...
Sunday, May 26, 2024
转化器新装触媒通氯化氢活化时间(),转化器出口无酸放出,出口氯化氢纯度()进口氯化氢纯度。...
Sunday, June 4, 2023
冷冻站输送出的冷冻水有()哪几种A、-35℃B、-25℃C、0℃D、5℃...
Sunday, February 4, 2024
粗氯乙烯液体在水分离器是靠()有效的把氯乙烯和水分离开的。...
Saturday, September 10, 2022
Sunday, February 4, 2024
混合脱水主要利用盐酸冰点低的物理性质,将氯化氢与乙炔混合后的气体温度降到(),从而降低了水蒸气在混合器中的饱和蒸汽压而达到对混合气进行()的目的。...
Thursday, June 22, 2023
Saturday, March 18, 2023
Monday, February 5, 2024
Tuesday, August 22, 2023
Wednesday, July 19, 2023
Saturday, September 10, 2022
Thursday, December 29, 2022
Tuesday, May 23, 2023
Monday, February 5, 2024
乙炔阻火器的作用()。A、过滤乙炔气中水B、冷凝乙炔气C、安全防火D、安全防火和杜绝火源沿管道流动...
Thursday, June 22, 2023
氯乙烯合成要求氯化氢纯度为()。A、90~92%B、92~93.5%C、96~98%D、93%...
Thursday, June 22, 2023
Thursday, December 29, 2022
Sunday, August 6, 2023