Device and method for preparing nitrous oxide

A technology of nitrous oxide and purification unit, applied in the direction of nitrous oxide, nitrogen oxides/oxyacids, etc., can solve the problem of high equipment cost

Pending Publication Date: 2018-09-04
北京万机汇机电工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] But the current domestic production of N 2 O basically adopts the production process of dry decomposition of ammonium nitrate, and the chemical reaction formula is NH 4 NO 3 →N 2 O+2H 2 O, this process is also the current international general process, but the equipment cost is relatively high
Moreover, the reaction is an exothermic reaction, and ammonium nitrate is a dangerous product, so it is necessary to ensure safety and reliability in the production process

Method used

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  • Device and method for preparing nitrous oxide

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] This embodiment provides a device for preparing nitrous oxide, such as figure 1 As shown, including: sequentially connected reaction unit, cooling purification unit and compression liquefaction unit;

[0027] The reaction unit includes a reactor 2, a safety water-sealed tank 1 connected to the reactor 2, and a temperature automatic control...

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Abstract

The invention provides a device and a method for preparing nitrous oxide. The device comprises a reaction unit, a cooling and purification unit and a compression and liquefying unit which are connected sequentially; and the reaction unit comprises a reactor, a safe water sealing tank connected with the reactor as well as a temperature self-control system for controlling the internal temperature ofthe reactor. According to the device and the method for the preparing nitrous oxide, which are provided by the invention, a reaction system of the device is provided with the safe water sealing tankand the temperature self-control system, so that the safe reliability of production is effectively guaranteed; and the method has high self-control degree, the purity of products is guaranteed and theprocess flow is simple.

Description

technical field [0001] The invention relates to the field of preparation of chemical raw materials, in particular to a device and method for preparing nitrous oxide. Background technique [0002] Nitrous oxide, chemical formula N 2 O, also known as nitrous oxide and laughing gas, is a colorless, sweet-smelling gas. It is an oxidant that can support combustion under certain conditions (same as oxygen, because laughing gas can be decomposed into nitrogen and oxygen at high temperatures), but in Stable at room temperature, has a slight anesthetic effect, and can make people laugh. Nitrous oxide is an important raw material in the chemical and electronic industries. It has a wide range of uses and can be used as a combustion aid, a rocket oxidant, a medical anesthetic, and a food processing aid. [0003] Preparation of N 2 The main methods of O are thermal decomposition of ammonium nitrate and contact oxidation of ammonia, or recovery of tail gas produced in the process of pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/22
CPCC01B21/22C01P2006/80
Inventor 王丽莉代俊红董爱娜王桂芝
Owner 北京万机汇机电工程技术有限公司
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