drying by distillation 中文意思是什麼
drying by distillation
解釋
蒸干- drying : 干化
- by : adv 1 在側,在旁,在附近。2 (擱)在一邊,(放)到旁邊,(存)在一旁;收著。3 (由旁邊)經過,過...
- distillation : n. 1. 蒸餾(作用);蒸餾法。2. 蒸餾液;蒸餾物。3. 精華,精萃。
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The optimum technic conditions have been gotten in in preparaing high dispersive a1 ( oh ) 3 colloid by controlling reactant concentration, ph value, reaction temperature, matured time. they are the prereguisite to prepare nanopoder of a - a1203. this paper entirely and systematically studies the following three kinds of drying stages : oven drying, dehydration with alcohols and azeotropic distillation stage
本文採用逐步逼近法進行了氫氧化鋁膠體的沉降實驗,對膠體形成的體系反應物的初始濃度、體系的ph值、反應溫度和膠體的陳化時間進行了系統優化,並獲得了制備高分散氫氧化鋁膠體的最佳工藝參數;此膠體經過過濾、 80下烘乾后所得樣品,在掃描電鏡下直接觀察其粒徑為50nm ,且分佈范圍窄,顆粒的表面清潔,為球形。
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