A kind of purification equipment for ammonia in liquid sodium cyanide

Abstract

The invention relates to the field of chemical equipment, and discloses a purification equipment for ammonia in liquid sodium cyanide, which includes a deammonization tower, a purification tower and a heating mechanism. The bottom of the deamination tower is fixedly connected to the liquid outlet pipe, the liquid outlet pipe is connected to the circulating water pump, the water outlet end of the circulating water pump is fixedly connected to the main pipe, and the other end of the main pipe extends to the inside of the deammonization tower. The blower is arranged outside the deamination tower, and the blast pipe is connected to the inside of the blower and the deamination tower. The top of the purification tower is fixedly connected with the discharge pipe, and the top of the deamination tower is fixedly connected with the ventilation pipe with the purification tower. The heating mechanism is arranged inside the deamination tower, and the heating mechanism is connected with the end of the main pipe. The purification equipment is under the action of the heating tube, so that the liquid sodium cyanide is always sprayed from top to bottom at a relatively high temperature, so that the liquid sodium cyanide is always in the deamination process, and the deamination process will not be reduced due to heat loss. s efficiency.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a purification equipment for ammonia in liquid sodium cyanide. Background technique [0002] The production of sodium cyanide by light oil cracking method is based on light oil (or natural gas), liquid ammonia and liquid alkali as the main raw materials, and the cracked gas containing hydrogen cyanide and ammonia from the cracking furnace has a temperature of 40-60 ℃, directly enter the absorption tower to produce 30% liquid sodium cyanide, the cracked gas containing hydrogen cyanide and ammonia has not been deaminated, and the liquid sodium cyanide directly produced is sodium cyanide. [0003] Sodium cyanide is a widely used basic chemical raw material. In the dye industry, sodium cyanide is used to produce cyanuric chloride. The quality of sodium cyanide containing sodium cyanide is poor, so it is necessary to remove the ammonia in liquid sodium cyanide And purify, ...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the invention provides a kind of purification equipment for ammonia in liquid sodium cyanide, which solves the problem that the deamination degree of liquid sodium cyanide decreases due to the temperature reduction of liquid sodium cyanide, And the technical problem of slow ammonia gas emission rate due to the small contact area between liquid sodium cyanide and air

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