Small intermittent reducing distillation device

Abstract

The invention relates to a small intermittent reducing distillation device. The small intermittent reducing distillation device is mainly used for laboratory investigation or preparation of small-batch volatile metal and oxide and comprises a reducing distillation furnace, wherein an opening is formed in the top of the reducing distillation furnace, a matched furnace lid is arranged at the opening, a gas outlet is formed in the furnace lid, inside of the reducing distillation furnace body is arranged in a layered manner and specially comprises a reduction reaction layer at the lower part, a sedimentation layer between the reduction reaction layer and the gas outlet and an accommodating layer between the reduction reaction layer and the sedimentation layer; the device further comprises a condensation chamber; the reducing distillation furnace is communicated with the condensation chamber through the gas outlet in the furnace lid. According to the device, gas is blocked by sedimentationpartitions, gaseous substances in a product are condensed sufficiently, the product that is not condensed sufficiently in the sedimentation layer is cooled again in the condensation chamber, dust is collected by a bag at an outlet of the condensation chamber, and the product is prevented from entering an induced draft fan. The product yield of the reducing distillation device is high, and the device is simple in structure and easy to manufacture, mount and maintain.

Description

technical field [0001] The invention belongs to the field of metallurgical equipment, and more specifically relates to a small reduction distillation device, which is mainly used for laboratory research or the preparation of small batches of volatile metals and oxides. Background technique [0002] Reductive distillation is a reduction smelting method that simultaneously volatilizes and condenses the reduced substance (metal) in metallurgical equipment. The whole process includes the reduction of metal oxides and the volatilization and condensation of metals after reduction. Reductive distillation is a unique metallurgical method based on the premise that the reduced metal can volatilize in large quantities at high temperature. Solid or liquid metal has a certain vapor pressure at a certain temperature, and the vapor pressure of metal increases with the increase of temperature. Metal vapors can be obtained by reducing metal oxides to a metallic state at high temperature. ...

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Problems solved by technology

[0003] However, some reduction reactions produce gases such as carbon monoxide or carbon dioxide. When the main product is in a gaseous state, it is difficult to separate after mixing with gases such as carbon monoxide or carbon dioxide. It cannot be prepared by conventional vacuum distillation equipment.

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