Composite low solid mercury catalyst used for acetylene hydrochlorination and preparation method thereof
A mercury catalyst and mercuric chloride technology, which is applied in the direction of physical/chemical process catalysts, hydrogen halide addition preparation, chemical instruments and methods, etc., can solve the problems of low catalyst stability, high cost, poor activity, etc., and achieve improved activity and stability, low price, and the effect of reducing volatilization
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Embodiment 1
[0032] 1. The activated carbon is pretreated to remove the ash, and dried to constant weight at 120°C to obtain the pretreated activated carbon;
[0033] 2. Prepare a 10wt% hydrochloric acid aqueous solution with a volume of 2.5L, dissolve 70g of mercuric chloride and 10g of potassium chloride in the hydrochloric acid aqueous solution, and use it as impregnation solution A;
[0034] 3. Weigh 1 kg of pretreated activated carbon dried to constant weight and add it to impregnating solution A, soak for 15 hours at 20°C, take out the activated carbon carrier impregnated with active components, and dry at 120°C to constant weight;
[0035] 4. Prepare a 10wt% hydrochloric acid aqueous solution with a volume of 2.5L, dissolve 30g copper chloride and 10g cerium chloride in the hydrochloric acid aqueous solution, and use it as the impregnation solution B;
[0036] 5. Add the impregnated activated carbon obtained in step 3 into the impregnation solution B, impregnate at 25°C for 15 hours...
Embodiment 2
[0039] 1. The activated carbon is pretreated to remove the ash, and dried to constant weight at 120°C to obtain the pretreated activated carbon;
[0040] 2. Prepare a 5wt% hydrochloric acid aqueous solution with a volume of 2.5L, dissolve 80g of mercuric chloride and 100g of potassium chloride in the hydrochloric acid aqueous solution, and use it as impregnation solution A;
[0041] 3. Weigh 1 kg of pretreated activated carbon dried to constant weight and add it to impregnating solution A, soak at 80°C for 15 hours, take out the activated carbon carrier impregnated with active components, and dry at 120°C to constant weight;
[0042] 4. Prepare a 5wt% hydrochloric acid aqueous solution with a volume of 2.5L, dissolve 50g copper chloride and 50g barium chloride in the hydrochloric acid aqueous solution, and use it as impregnation solution B;
[0043] 5. Add the impregnated activated carbon obtained in step 3 into the impregnation solution B, impregnate at 80°C for 15 hours, and...
Embodiment 3
[0046] 1. The activated carbon is pretreated to remove the ash, and dried to constant weight at 120°C to obtain the pretreated activated carbon;
[0047] 2. Prepare a 12wt% hydrochloric acid aqueous solution with a volume of 2.0L, dissolve 80g of mercuric chloride and 100g of cesium chloride in the hydrochloric acid aqueous solution, and use it as impregnation solution A;
[0048] 3. Weigh 1 kg of pretreated activated carbon dried to constant weight and add it to impregnating solution A, soak at 80°C for 15 hours, take out the activated carbon carrier impregnated with active components, and dry at 120°C to constant weight;
[0049] 4. Prepare a 5wt% hydrochloric acid aqueous solution with a volume of 2.5L, dissolve 50g copper chloride and 50g barium chloride in the hydrochloric acid aqueous solution, and use it as impregnation solution B;
[0050] 5. Add the impregnated activated carbon obtained in step 3 into the impregnation solution B, impregnate at 80°C for 15 hours, and t...
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Abstract
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