Preparation method of vanadium-phosphorus-oxygen catalyst for regulating and controlling crystal face, and butane oxidation application
A technology of vanadium phosphorus oxygen and catalysts, which is applied in the directions of chemical instruments and methods, physical/chemical process catalysts, chemical/physical/physical chemical processes of energy application, etc., can solve problems such as introduction, and achieve the improvement of smooth yield and microcosmic The effect of uniform mixing and easy industrial preparation
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[0032] As an aspect of the present invention, a method for preparing a vanadium-phosphorus-oxygen catalyst that regulates crystal planes of the present invention comprises the following steps:
[0033] S1. Prepare the hypergravity circulation device:
[0034] The high gravity circulation device includes a submerged pump 1, a filler 2, a motor 3, an ultrasonic probe 4, a discharge port 5, a heating jacket 6, a feed port 7 and an exhaust port 8;
[0035] The output shaft of the motor 3 extends through the upper end shell of the heating jacket 6 to the cavity area of the heating jacket 6, the lower end of the output shaft of the motor 3 is fixed to the rotating disk, and the filler 2 is fixed in the rotating disk;
[0036] The ultrasonic probe 4 is arranged at the bottom of the heating jacket 6 and extends to the bottom of the cavity area; when the ultrasonic probe 4 is turned on, the reaction liquid in the liquid storage area can be ultrasonically oscillated;
[0037] The mat...
Embodiment 1
[0055] A method for preparing a vanadium-phosphorus-oxygen catalyst that regulates crystal planes, comprising the steps of:
[0056] 50gV 2 o 5 , 400ml isobutanol, 100ml benzyl alcohol were added to figure 1 In the supergravity coupled ultrasonic reactor shown, the device is sealed well, the supergravity rotating bed is started, the supergravity rotation speed is controlled to 1500r / min, the ultrasonic is started, and the ultrasonic frequency is controlled to 48kHz. Turn on the circulating oil bath, the temperature of the circulating oil bath is 170°C, the reaction material is heated to 112°C by the circulating oil bath, and dissolved and reduced for 3 hours. After dissolution and reduction, the temperature was lowered to obtain a blue-green suspension. After cooling down to 90° C., 37.6 ml of 85% concentrated phosphoric acid was fed through feed port 7 using a peristaltic pump. During the process of feeding phosphoric acid, the exhaust port 8 is opened to maintain the nor...
Embodiment 2
[0059] A method for preparing a vanadium-phosphorus-oxygen catalyst that regulates crystal planes, comprising the steps of:
[0060] 50gV 2 o 5 , 400ml isobutanol, 100ml benzyl alcohol were added to figure 1 In the supergravity coupled ultrasonic reactor shown, the device is sealed well, the supergravity rotating bed is started, the supergravity rotation speed is controlled to 1000r / min, the ultrasound is started, and the ultrasonic frequency is controlled to 36kHz. Turn on the circulating oil bath, the temperature of the circulating oil bath is 150°C, the reaction material is heated to 112°C by the circulating oil bath, and dissolved and reduced for 3 hours. After dissolution and reduction, the temperature was lowered to obtain a blue-green suspension. After cooling down to 90° C., 37.6 ml of 85% concentrated phosphoric acid was fed through feed port 7 using a peristaltic pump. During the process of feeding phosphoric acid, the exhaust port 8 is opened to maintain the nor...
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