采用共沉淀沉积法制备的催化剂对于二甲醚合成的活性明显高于机械混合法制备的催化剂。
The catalyst prepared by precipitation sedimentation method had a higher catalytic activity for DME synthesis than the catalyst prepared by mechanical mixing method.
分别利用浸渍法和共沉淀法在硅衬底上制备高分散态和大部分结晶态的钼酸铋催化剂。
Silica-supported bismuth molybdate catalysts were prepared by impregnation in a highly dispersed state and by coprecipitation in a largely crystallized state.
用该催化剂合成的产品无色透明，室温下无絮状沉淀物。
The products were colourless transparent liquid without any sediment at room temperature.
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