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。
The adsorption of compounds followed by the reduction process, which is controlled by the mass transfer step at higher nitrobenzene concentration.
还原过程伴有反应物吸附现象，当硝基苯浓度较大时，还原过程受传质过程控制；
The diffusion of WO3 is the restrictive step of reduction process of WO3. Improving fluidity of slag and enlarging areas of reaction interface can accelerate reduction process of WO3.
还原WO3的限制性环节是WO3在熔渣中的扩散，改善渣的流动性，扩大反应界面能加快WO3的还原；
The diffusion of WO3 is the restrictive step of reduction process of WO3. Improving fluidity of slag and enlarging areas of reaction interface can accelerate reduction process of WO3.
还原WO3的限制性环节是WO3在熔渣中的扩散，改善渣的流动性，扩大反应界面能加快WO3的还原；
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