Technique for preparing nitrous oxide by decomposing ammonium nitrate

A technology of nitrous oxide and ammonium nitrate, which is applied in the direction of nitrous oxide, nitrogen oxides/oxyacids, etc., can solve the problems of complex production technology, poor product quality, and high cost, and achieve convenient use and reasonable design Effect

Inactive Publication Date: 2011-01-26
TIANJIN TAIYUAN INDAL GAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, nitrous oxide is an important raw material in the chemical industry and has a wide ran

Method used

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  • Technique for preparing nitrous oxide by decomposing ammonium nitrate
  • Technique for preparing nitrous oxide by decomposing ammonium nitrate

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Experimental program
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Embodiment Construction

[0011] refer to figure 1 , design reactor (1), cooling tower (2), drier (3), rectification tower (4), surge tank (5), compressor (6), condenser (7) with feeding port (9) ) is formed by assembling a connecting pipeline (7) according to its system function.

[0012] The present invention all adopts stainless steel material to make and assemble. Operation process: Pour granular ammonium nitrate into the feeding tank of the melting pot, add a small amount of water and catalyst (diammonium hydrogen phosphate) to heat to melt; the melted ammonium nitrate is injected into the reaction kettle (1) by the injection pump. The products decomposed in the reaction kettle (1) enter the cooling tower (2), and the water vapor in the reactants in the cooling tower (2) is condensed into water, which is discharged together with the spray cooling water. Water-soluble impurities and mechanical impurities in the reactants are also washed away.

[0013] The gas from which a significant amount of w...

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Abstract

The invention discloses a technique for preparing nitrous oxide by decomposing ammonium nitrate. A reactor with a charging hole, a cooling tower, a drier, a rectifying tower, a buffer tank, a compressor, and a condenser are assembled into a whole through a connecting pipeline according to system functions thereof. The technique has the advantages of reasonable design and convenient use, and is ideal nitrous oxide preparation technology.

Description

Technical field [0001] The invention relates to a technology for chemically producing nitrous oxide, in particular to a technology for producing nitrous oxide by decomposing ammonium nitrate, which is suitable for chemical synthesis of nitrous oxide. Background technique [0002] At present, nitrous oxide is an important raw material in the chemical industry and has a wide range of uses, but the production process is complicated, the cost is high, and the product quality is poor. Contents of the invention [0003] The problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a technology for decomposing ammonium nitrate to produce nitrous oxide. The technology is not only reasonable in process, simple in preparation, but also easy to obtain raw materials, does not generate HCI by-products, does not discharge high-boiling point chlorides, and has high product yield and high utilization rate of raw materials. [0004] The tec...

Claims

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Application Information

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IPC IPC(8): C01B21/22
Inventor 李中元
Owner TIANJIN TAIYUAN INDAL GAS
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