Preparation method of vanadium-phosphorus-oxygen catalyst for regulating and controlling crystal face, and butane oxidation application

[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...

[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...

[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...