conditions of calcination

The optimal reaction conditions were determined: the concentration of hydrochloric acid was 3%, boiling time was 4 h, calcination temperature was 550 ℃.

对新方法制备白炭黑的工艺条件进行了研究，确定了反应的最佳工艺条件：盐酸质量分数为3%，煮沸时间为4h，煅烧温度为550℃。

This work mainly focuses on: ( 1) A series of phosphate catalysts have been prepared by precipitation method and sol-gel method respectively. The effects of preparing method, materials, conditions of drying and calcination on the properties of the catalysts have been investigated.

本研究主要包括以下内容：（1）分别以沉淀法和溶胶-凝胶法制备磷酸盐系列催化剂，考察了制备方法、原料、干燥、煅烧等条件对催化剂性能的影响。

The synthesis conditions were investigated such as the type of template, calcination temperature, molar ratio of water and titanium source, and molar ratio of template and titanium source.

通过改变模板剂的类型、焙烧温度、水和钛源的摩尔比、模板剂和钛源的摩尔比等因素，探索制备有序介孔二氧化钛的最佳条件。

The effects of the preparation conditions, such as calcination temperature, ratio of sol and zeolite and exchange times were investigated.

研究了煅烧温度，溶胶沸石配比，交换次数等制备条件对催化剂的影响。

The effects of loading, calcination temperature and calcination time on the solid base catalyst preparation conditions on the yield of dehydroacetic acid.

通过实验考察了负载量、煅烧温度和煅烧时间等固体碱催化剂制备条件对脱氢乙酸产率的影响。