硫酸钙

• Binders , composite binders and factory made mixtures for floor screeds based on calcium sulfate - part 2 : test methods ; german version en 13454 - 2 : 2003
  地板层找平用基于硫酸钙的粘合剂复合粘合剂和工厂
• Binders , composite binders and factory made mixtures for floor screeds based on calcium sulfate - part 1 : definitions and requirements
  基于硫酸钙的地板找平层用粘合剂合成粘合剂和工厂制混合物.第1部分:定义和要求
• Standard practice for calculation of supersaturation of barium sulfate , strontium sulfate , and calcium sulfate dihydrate gypsum in brackish water , seawater , and brines
  微咸水海水及盐水中硫酸钡硫酸锶和无水硫酸钙
• Binders , composite binders and factory made mixtures for floor screeds based on calcium sulfate - part 1 : definitions and requirements ; german version en 13454 - 1 : 2004
  地板层找平用基于硫酸钙的粘合剂复合粘合剂和工厂
• The variation of product layer diffusivity with these factors was explained by its dependence on the concentrations of defects in cao and caso4 crystals
  产物层扩散系数的变化可以其受氧化钙及硫酸钙结晶缺陷的浓度的影响来解释。
• In this paper , theories of porous membrane fouling and cleaning were explored , and a series of experiments were especially done to clean caso4 scale in porous membrane
  本文就对多孔膜的污染问题进行了理论探讨，并针对多孔膜中硫酸钙垢的清洗作了一系列实验。
• At last , on the basis of above experiments , the five - factor - three - level orthogonal experiments on the relative flux recovery ratio after na2edta and na4edta cleaning pvdf microfiltration membrane that was fouled by caso4 were done
  最后，在前面实验的基础上，作出na _ 4edta和na _ 2edta对硫酸钙垢污染的pvdf微滤膜清洗后，相对通量恢复率的五因素三水平正交实验。
• The high - efficiency cleaning agent and optimum conditions were chosen and it has some guiding significance on practice . the main tasks include : by the contrastive experiments of sodium tripolyhosphate , sodium hexametaphosphate , na2edta and na4edta dissolving caso4 , na2edta and n ^ edta were chosen as cleaning agents in this experiment
  主要包括：通过对三聚磷酸钠、六偏磷酸钠、乙二胺四乙酸二钠、乙二胺四乙酸四钠四种螯合剂对硫酸钙溶解性对比实验，最终选择乙二胺四乙酸二钠和乙二酸四乙酸四钠作为本实验清洗剂。
• Integrating the dissolving experiments of na2edta and na4edta and the orthogonal experiments , we can conclude that the dissolving property of na ^ edta is relatively more stable and higher than that of na2edta in this experiment . and , the conclusion can be made that for the caso4 scale in membrane na4edta has the best cleaning effect and the optimum condition is ph = 11 , operating pressure = 0 . 1mpa and concentration = 4 % wt
  在综合考虑乙二胺四乙酸二钠和乙二胺四乙酸四钠对硫酸钙的溶解性实验及正交实验，和最后对污染膜清洗的正交实验可以看出，尽管最优工程选择中nazedta清洗后膜的相对恢复率略高于na4ed飞’ a ，但其要求条件相对苛刻，从溶解性实验也可看出， na4edrla对硫酸钙的溶解相对稳定，溶解率高。