The two-step process involving gas oxidation of phenol to benzoquinone with complex metal ions catalysts and reduction of benzoquinone to hydroquinone with iron powder was studied.
以苯酚为原料，复合金属离子为催化剂，研究用气相氧化合成苯醌，用铁粉还原苯醌制对苯二酚的两步法工艺，考察了氧化过程中的工艺条件对反应的影响。
During the reduction process, it is possible to obtain metal with dense layer or ultrafine powder by controlling the reaction temperature and chloride concentration.
在还原过程中，控制反应温度及氯化物浓度可以获得金属致密镀层或超微粉末。
The invention discloses a direct reduction generator for copper powder with low apparent density and a process thereof.
本发明公开了一种低松比铜粉直接还原发生器及工艺。
The project made studies on the manufacturing process of the bright nanometer Ag powder, and fixed the process route of chemical reduction-mechanical ball milling.
本项目对纳米光亮片状银粉的制备工艺进行了研究，确定了化学还原—机械球磨的工艺路线。
The project made studies on the manufacturing process of the bright nanometer Ag powder, and fixed the process route of chemical reduction-mechanical ball milling.
本项目对纳米光亮片状银粉的制备工艺进行了研究，确定了化学还原—机械球磨的工艺路线。
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