Carbon tetrafluoride reactor, reaction system and carbon tetrafluoride production process

Abstract

The invention relates to a carbon tetrafluoride reactor, a reaction system and a carbon tetrafluoride production process. The carbon tetrafluoride reactor comprises a reactor body, wherein a fluorine gas inlet and a carbon adding hole are formed on the top of the reactor body; a carbon tetrafluoride outlet and a slag removing hole are formed in the bottom of the reactor body; a hole plate tray is arranged below the carbon adding hole in the reactor body; and a water-cooling outer jacket for cooling the reactor body is arranged outside the reactor body. The tetrafluoride production reaction system comprises a fluorine gas source, a carbon tetrafluoride collecting device and the carbon tetrafluoride reactor. The carbon tetrafluoride production process adopts the carbon tetrafluoride reactor, and comprises the steps of inflowing air, reacting and product collecting. According to the invention, the fluorine gas inlet is formed on the top of the reactor body, and the carbon tetrafluoride outlet is formed on the bottom of the reactor body, so that a phenomenon that the reaction is focused to a certain local part in the reactor body for a long time is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of carbon tetrafluoride production, in particular to a carbon tetrafluoride reactor, a reaction system and a carbon tetrafluoride production process. Background technique [0002] In the existing carbon tetrafluoride production process, fluorine gas is usually passed into a carbon tetrafluoride reactor filled with carbon, so that the fluorine gas reacts with carbon to generate carbon tetrafluoride gas. The carbon tetrafluoride reactor used in the production is usually equipped with a fluorine gas inlet and a slag removal port at the bottom of the reactor body, and a carbon tetrafluoride outlet and a carbon addition port at the top of the reactor body. An orifice plate tray is arranged at the bottom, and a water-cooled outer jacket for cooling the reactor body is arranged outside the reactor body. During the production process, the fluorine gas inlet at the bottom of the carbon tetrafluoride reactor is conne...

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Problems solved by technology

[0003] The above-mentioned carbon tetrafluoride reactor, reaction system and production process have the following major defects: when the fluorine gas enters the reactor body from the fluorine gas inlet at the bottom of the reactor body, the fluorine gas first interacts with the carbon on the orifice tray. Make contact, so that most of the fluorine gas reacts with carbon at the orifice tray, and only a small part of the fluorine gas continues to rise and contact the newly added carbon that has not yet fallen on the orifice tray. After the carbon falls on the orifice tray, the reaction process is still carried out at the orifice tray, so that the whole reaction process is always carried out at the orifice tray

The reaction between fluorine gas and carbon is a strong exothermic reaction. Although the reactor body adopts a water-cooled outer jacket to cool down, the large amount of heat generated by the continuous reaction at the orifice tray cannot be taken away in time, resulting in the localization of the orifice tray. The burning phenomenon is serious, and the orifice tray needs to be replaced frequently, which greatly increases the production cost and reduces the production efficiency

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