Catalyst containing caesium and vanadium and preparation method thereof
A cesium vanadium catalyst and content technology, applied in the chemical industry, can solve the problems of damage to the carrier skeleton, rapid thermal decay, uneven dispersion, etc., and achieve the effects of reducing operating temperature, widening operating range, and improving low-temperature activity.
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Embodiment 1
[0023] A preparation method containing cesium vanadium catalyst, comprising the following steps:
[0024] Cesium vanadium-containing catalyst, the total mass of its components is 100%, and the content of each component is:
[0025] Vanadium pentoxide (V 2 o 5 ) 7%;
[0026] Cesium oxide (Cs 2 O) 4%;
[0027] Potassium oxide (K 2 O) 11.5%;
[0028] Sodium oxide (Na 2 O) 5%;
[0029] The balance is diatomaceous earth;
[0030] Dissolve 15.1kgKOH in 40kg water, add 7kgV 2 o 5 Heating reaction to produce KVO 3 solution, after adding 5.1kgCs 2 SO 4 , 11.5kgNa 2 SO 4 ,50kg oxalic acid, 23kgH 2 SO 4 , react at a high temperature of 150-200°C to prepare a complex ion solution, mix it with 54kg of diatomaceous earth evenly, shape it, and dry it at 50-110°C until the moisture content of the material is less than 10% to obtain a semi-finished product. Calcined at 550-700° C. for 1.5 hours to obtain 100 kg of product.
Embodiment 2
[0032] A preparation method containing cesium vanadium catalyst, comprising the following steps:
[0033] Cesium vanadium-containing catalyst, the total mass of its components is 100%, and the content of each component is:
[0034] Vanadium pentoxide (V 2 o 5 ) 8.5%;
[0035] Cesium oxide (Cs 2 O) 8%;
[0036] Potassium oxide (K 2 O) 12.6%;
[0037] Sodium oxide (Na 2 O) 3%;
[0038] The balance is diatomaceous earth;
[0039] Dissolve 16.7kgKOH in 48kg water, add 8.5kgV 2 o 5 Heating reaction to produce KVO 3 Solution, after adding 9.5kgCsOH, 4kgNaOH, 36kg acetic acid, 28kgH 2 SO 4 Heating and reacting to form a mixed solution, which was uniformly mixed with 48kg of diatomaceous earth, shaped, dried and calcined to obtain a 100kg product.
Embodiment 3
[0041] A preparation method containing cesium vanadium catalyst, comprising the following steps:
[0042] Containing cesium vanadium catalyst, the total mass of its components is 100%, and the content of each component is:
[0043] Vanadium pentoxide (V 2 o 5 ) 6.5%;
[0044] Cesium oxide (Cs 2 O) 2%;
[0045] Potassium oxide (K 2 O) 11.4%;
[0046] Sodium oxide (Na 2 O) 6%;
[0047] The balance is diatomaceous earth;
[0048] Dissolve 15.1kgKOH in 35kg water, add 7kgV 2 o 5 Heating reaction to produce KVO 3 solution, after adding 2.6kgCs 2 SO 4 , 12.2kgNa 2 SO 3 ,36kg citric acid, 23kgH 2 SO 4 Heating and reacting to form a mixed solution, which was uniformly mixed with 50.5kg of diatomaceous earth, shaped, dried and calcined to obtain 100kg of product.
[0049] According to the HG2089 test method for catalyst activity of sulfur dioxide oxidation to sulfuric acid, the products obtained at different formulations were tested at 380°C, 410°C, and 485°C, and t...
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