Regeneration preparing method for supported copper-bismuth catalyst
A copper-bismuth catalyst and a supported technology are applied in the field of regeneration and preparation of supported copper-bismuth catalysts, which can solve the problems of large destructiveness of the catalyst carrier structure, reduced catalyst activity, heat and impact sensitivity, etc., so as to improve waste utilization rate and pollution Small, low heating temperature effect
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[0016] Embodiment 1. A regenerative preparation method of a supported copper-bismuth catalyst, characterized in that it comprises the following steps:
[0017] Step 1). Preparation: The wasted copper-bismuth catalyst is sealed with water, stored for 1-6 days, and the filter cake filtered by suction is used. The filter cake refers to the content of the original liquid retained on the filter after the liquid passes through the filter. Solid matter is the filtered solid matter of the mixture of waste copper bismuth catalyst and water;
[0018] Step 2), perform the first liquid phase oxidation: add the filter cake obtained in step 1) to the stirrer, then add 30% by weight oxidant to the stirrer, stir, and then add 0.2% by weight copper Ion protecting agent, copper ion protecting agent is sodium acetate solid, heating to bring the temperature of the stirring material to 30-40℃, stirring for 30-50min, cooling, suction filtration, washing the filter cake, and drying to obtain the dried fi...
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