method of making styrene
A technology of styrene and iron oxide red, applied in chemical instruments and methods, hydrocarbons, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of decreased catalyst activity and high production cost
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Embodiment 1
[0025] Mix 88 parts of red iron oxide, 9 parts of potassium carbonate, 6 parts of cerium oxalate, 8 parts of magnesium oxide, 6 parts of calcium carbonate, 0.1 part of manganese dioxide, 4 parts of nickel oxide, and 4 parts of carboxymethyl cellulose, and add 40 parts of deionized water, knead the wet material into a dough-like material suitable for extrusion, extrude, cut into pellets, age at room temperature for 10 hours, put in an oven, dry at 80°C for 6 hours, place in a roasting furnace, and heat at 800°C Calcined for 2 hours to obtain the finished catalyst. Put 100ml of catalyst into the evaluation reactor, and evaluate the catalytic activity at the reaction temperature of 620°C and the water ratio of 2.0, and measure the catalyst's crush resistance, pass rate of boiling water test, and pass rate of cold water test. Test results: styrene yield is 73.9%, styrene selectivity is 95.3%, ethylbenzene conversion rate is 77.5%, crush resistance is 120N, the boiling water test i...
Embodiment 2～8
[0027] Catalysts were prepared according to the method of Example 1, except that the component contents were different. The component contents were shown in Table 1, and the properties of the prepared catalyst were shown in Table 2.
Embodiment 9
[0029] Catalysts were prepared according to the method of Example 1, except that the component contents were different. Catalyst evaluation conditions: normal pressure, reaction temperature 610°C, water / ethylbenzene mass ratio 2.0, ethylbenzene liquid space velocity 1.0h -1 , its component content is shown in Table 1, and the performance of the prepared catalyst is shown in Table 2.
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