SU254483A1

SU254483A1 - The method of carrying out gas-phase chemical reactions

Info

Publication number: SU254483A1
Application number: SU1262548A
Authority: SU
Inventors: И.Г. Бляхер; В.А. Халтурин; В.Л. Закутинский; И.И. Шишко
Priority date: 1968-08-15
Filing date: 1968-08-15
Publication date: 1977-04-05

Description

(54) СПОСОБ ПРОВЕДЕНИЯ ГАЗОФАЗНЫХ ХИМИЧЕСКИХ(54) METHOD FOR CARRYING OUT GAS-PHASE CHEMICAL

Изобретение от-носитс к области химической технологии получени твердых продуктов из газообразных веществ.The invention relates to the field of chemical technology for producing solid products from gaseous substances.

Известны способы проведени реакций на движущейс насадке.Methods are known for carrying out reactions on a moving nozzle.

Однако получение твердых продуктов в ходе газофазных химических реакций сопр жено со значительными трудност ми вследствие образовани чрезвычайно мелких частиц , улавливание которых требует очень сложной и громоздкой аппаратуры.However, obtaining solid products during gas-phase chemical reactions is associated with considerable difficulties due to the formation of extremely small particles, the capture of which requires very complex and cumbersome equipment.

Другим существенным недостатком при получении некоторых продуктов в газовой фазе (например, сульфата аммони , пиросульфита аммони , хлористого алюмини , углекислого аммони ), вл етс инкрустаци не об огреваемых стенок аппаратуры газоотходов продуктами реакции что снижает эффективность процесса и требует периодической ОЧИСТКИ аппаратуры.Another significant disadvantage in the production of some products in the gas phase (e.g. ammonium sulfate, ammonium pyrosulfite, aluminum chloride, ammonium carbonate) is the incrustation of unburdened gas products by the reaction products, which reduces the efficiency of the process and requires periodic cleaning of the apparatus.

По предлагаемому способу дл предотвращени образовани высокодисперсных частиц тфодукта и получени продукта с больщим насьпшым весом процесс взаимодействи между исходными фазами в осРЕАКЦИЙAccording to the proposed method for preventing the formation of highly dispersed particles of the product and obtaining a product with a large amount of weight, the process of interaction between the initial phases in osREACTIONS

новном осуществл етс на охлажденной и/или смоченной поверхности движущейс ща- ровой насадки. Процесс проводитс в противоточном вертикальном реакторе, в нижнюю часть которого поступают непрерывно газообразные реагенты, а в верхнюю - охлажденна или охлажденна и смоченна щарова насадка.It is mainly carried out on the cooled and / or wetted surface of the moving Gap nozzle. The process is carried out in a countercurrent vertical reactor, into the lower part of which continuously gaseous reagents are fed, and to the upper - cooled or cooled and wetted nozzle.

На поверхности насадки исходные реагенты вступают в реакцию, образуют тфодукт в виде плотного или рыхлого сло определенной толщины. Насадка вместе с осевшим на ней прощ-ктом непрерывно разгружаетс On the surface of the nozzle, the initial reagents react and form a product in the form of a dense or loose layer of a certain thickness. The nozzle, along with the probe that has settled on it, is continuously unloaded.

из реактора, направл етс на разделительное устройство (натфимер, барабанный грохот ), охлаждаетс и смачиваетс и далее снова загружаетс в реактор.from the reactor, sent to a separation device (natfimer, drum screen), cooled and wetted and then reloaded into the reactor.

Claims

For better deposition, the temperature difference between the nozzle and the gas phase in the apparatus is maintained at least 2-5 C. The use of a wetted nozzle almost completely eliminates the dust and also produces a non-flammable, W. natural Bi:; DM not compared with that obtained bringing the reaction in volume. The amount of moisture introduced into the reactor with a wetted nozzle is determined in each particular case by the thermal effect of the reaction to form this product and the allowable amount of moisture content in it. The number of nozzles, its height in the reactor, the material and the speed of movement are determined by the specified technological mode of production of one or another product. Q feIii "S & J. Claim 1. The method of carrying out gas-phase chemical reactions in a countercurrent reactor with a moving layer of spherical nozzle, characterized in that, in order to prevent the formation of a fine product and increase its intrinsic weight, the ball nozzle is cooled and moistened with the target product .

2. The method according to claim 1, characterized in that the temperature difference between the gaseous medium and the ball nozzle is maintained at least 2-5 C.