SU1715392A1 - Method of conducting chemical processes - Google Patents

Abstract

The invention relates to chemical processes, in particular the implementation of chemical processes. The purpose of the invention is to intensify the process. The last pro- water in the presence of solid particles of catalyst and inert material in a reactor with a fluidized bed of catalyst or inert material, into which inert material or catalyst is continuously introduced from above or below and removed from below or above. Carrying out the process in this way makes it possible to intensify the transformations of organic substances, which, all other things being equal, increases the degree of pre-. rotation from 16.6-87.2 to 100% (during the oxidation of organic substances) and from 42.1 to 53.2% (during the process of vinylation). 3 tablets

Description

The invention relates to a method for carrying out chemical processes (Chemical Process 88), which can be used when carrying out chemical reactions in the presence of heterogeneous catalysts.

The purpose of the invention is to intensify the process by carrying it out in the presence of solid particles of catalyst and inert material in a fluidized bed reactor or inert material into which the inert material or catalyst is continuously introduced from above or below. .

PRI me R 1. Deep oxidation of organic compounds and their mixtures with oxygen.

For carrying out the process, a flow-type reactor with an internal diameter of 0.05 m and a height of 0.7 m is used, the initial heating of which is provided with electric heating. The fluidizing agent of solid matter is air supplied to the lower zone of the reactor. Volume of fluidized material. 300 cm.

The original organic matter is fed to the lower zone of the reactor. The flow component is an inert material or catalyst. Transition metals are used as oxidation catalysts.

groups, their oxides and compounds. The completeness of chemical transformation is judged by the oxidation state of the original organic matter (up to C02 and H20).

The results of experiments on the implementation of the proposed method are given in table.1.

Table 2 shows the results of comparative experiments on the proposed method and the prototype (without flow-through component).

PRI mme R 2. Synthesis of vinyl acetate by vinylation of acetic acid.

The gas-phase synthesis of vinyl acetate by vinylating acetic acid is carried out in a flow reactor with a diameter of 30 mm, a height of 130 mm and electrically heated. The reactor contains a fluidized material with a particle diameter of 1-2 mm and a volume of 50 cm. 8 vol.%) With a flow rate of 436 l / h, liquid acetic acid (content of the main product is 99.7 wt.%) In the amount of 292 ml / h, solid particulate material or catalyst (in a series of experiments the flow component is introduced from the top ora and withdrawn from the bottom). The reaction of vinyl is carried out at a molar ratio of acetic acid: acetylene, equal to 1; 4, and a temperature of 200 ° C. The waste streams pass through the separation zone, the vapors are condensed by cooling to minus 20 ° C. The gas phase is discharged to the atmosphere and the liquid phase is sent to the receiver for chromatographic analysis. The content of vinyl acetate in the liquid

determined by chromatography. The completeness of the chemical conversion is judged by the degree of conversion of acetic acid to vinyl acetate.

The results of experiments on vinyl

acetic acid proposed method are presented in table 3.

Carrying out the process in this way makes it possible to intensify the process of transformation of organic substances, which is expressed, all other conditions being equal, and an increase in the degree of conversion from 16.687, 2 to 100% (during oxidation of organic substances) and from 42.1 to 53.2% (when conducting the vinylation process).

Claims (1)

Invention Formula A method of carrying out chemical Nrocesses in the presence of a heterogeneous catalyst, characterized in that, in order to intensify the process, the latter is carried out in the presence of solid particles of catalyst and inert material in a reactor with a fluidized bed of catalyst or inert material, into which is continuously introduced from above or below and output t bottom or top inert material or catalyst.  -Table PesynkTatti onttToe no synthesis of viilatsvtatv mishilimiisn acetic acid Flow Capacity Innovation Glass balls Industrial Kate - Snakau Swarh 171, 5) | Z NvTROI 1 AI Limtor with a particle diameter of 0.10, 15mm Glass wigs diamt Industrial kata-Bottom Saerhu 85.7) 0, & ROY 1 mm Lieator with a diameter of 9.10, 15 mm Washed Catalmaatr Glass varnakh Swarhu Below $ 8, 7 52.1 with a particle diameter t, $ 2 mm diameter 2.0 mm Glass balls diamechanical balls From above From above 85.7 18.7 meters I pl 70 Mec.t coal AR-DG and 30 masd zinc acetate c. particle diameter 0.1-0.15 I Degree Gprevratshi (Input I Output (Consumption, I acetic .L .... J ........ bfr ... acid, t In experiments 3, 6 and 9 about the quality of pseudokokizheniy and in experiments 1 and 2, a promissory catalyst for the synthesis of vinyl acetate of the following composition was used as a flow-through component: zinc acetate 27.8 Mac.t} the rest is AR-ZD coal