The test demonstrates that alkali carbonates, alkali hydroxides and a combination of sodium carbonate with ferriferrous oxide all exhibit approximate catalytic activity.
试验证明：碱金属碳酸盐，碱金属氢氧化物和碳酸钠同四氧化三铁的复合剂，都表现出相接近的催化活性。
2
The discussion of problem such as crucible protecting, operating technique, fluxing property and fluxing condition etc. in the method of fluxing silicate sample with alkalicarbonate.
用碱金属碳酸盐熔融硅酸盐样品方法中，有关坩埚保护、操作技术、熔剂性质、熔融条件等问题的探讨。
3
The packing Carbonate dust from the saponifiable waste alkali incineration equipment was treated with wet dust-removing techniques of material-filled purification tower.