湿氯气的化学性质更为强烈,几乎对()有强烈腐蚀作用。A、金属B、钢铁C、钢铁及金属D、钢铁及大多数金属...
Tuesday, February 13, 2024
计算题:蒸发工序8h用去电解液800m3,电解液含碱浓度为120g/l,问能得到100%NaOH多少吨?折合42%碱(640g/l)的碱液又有多少立方米?(忽略碱损失)...
Saturday, September 2, 2023
Sunday, March 10, 2024
压力容器工作压力在1.6≤P<10MPa,称为高压容器。...
Wednesday, January 17, 2024
Tuesday, December 12, 2023
透平机中冷气下水pH值由8.5剧降至6.5,肯定中冷器漏了。...
Wednesday, May 1, 2024
Tuesday, December 12, 2023
Friday, February 2, 2024
Wednesday, May 1, 2024
计算题:三效蒸发装置中,每台加热室面积为F=250m2,其产碱强度为4kg/(m3.h),求该系统年产能力为多少万吨?(年生产时间为7000小时)...
Tuesday, December 12, 2023
Monday, June 12, 2023
氯氢处理工序具有易燃、易爆、易中毒、易腐蚀,故在生产中必须严格执...
Tuesday, September 13, 2022
Tuesday, February 13, 2024
Sunday, March 24, 2024
Tuesday, February 13, 2024
Sunday, May 7, 2023
Saturday, September 2, 2023
计算题:有一槽碱浓度为670g/l,盐浓度为58g/l的碱40m3,温度从100℃冷却到32℃,此时测得碱浓度为692g/l,盐浓度为19g/l,问冷碱过程中析出的盐量?...
Friday, February 2, 2024
Sunday, March 10, 2024
计算题:某班产碱180m3,用蒸汽375T,问蒸汽消耗是多少?(CNaOH=618g/l)...
Tuesday, December 12, 2023