CN101955167A - Technique for preparing nitrous oxide by decomposing ammonium nitrate - Google Patents
Technique for preparing nitrous oxide by decomposing ammonium nitrate Download PDFInfo
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- CN101955167A CN101955167A CN 201010192463 CN201010192463A CN101955167A CN 101955167 A CN101955167 A CN 101955167A CN 201010192463 CN201010192463 CN 201010192463 CN 201010192463 A CN201010192463 A CN 201010192463A CN 101955167 A CN101955167 A CN 101955167A
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- nitrous oxide
- ammonium nitrate
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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
Affiliated technical field
The present invention relates to a kind of technology of chemical production Nitrous Oxide, particularly a kind of ammonium nitrate decomposes the technology of the inferior nitrogen of oxygenerating, is suitable for the chemical industry nitrous oxide.
Background technology
At present, Nitrous Oxide is the important source material of chemical industry, and is of many uses, but the production technology complexity, the cost height, quality product is also relatively poor.
Summary of the invention
Problem to be solved by this invention is, overcomes the deficiencies in the prior art, provides a kind of ammonium nitrate to decompose the technology of the inferior nitrogen of oxygenerating.This technology not only technology is reasonable, and preparation is simple, and raw material is easy to get, and does not produce the HCI by product, does not discharge the high boiling point muriate, product yield height, raw material availability height.
The technical solution used in the present invention is: design has reactor, cooling tower, moisture eliminator, rectifying tower, surge tank, compressor, the condenser of charging opening to be assembled into one by connection line by its system function to constitute.
The present invention all adopts stainless material to make assembling.Operating process: particulate state ammonium nitrate is poured in the intake chute of melting tank, adds the heating of less water and catalyzer (Secondary ammonium phosphate), makes its fusing; The ammonium nitrate of fusing is injected into reactor by injection pump.The product that decomposes at reactor enters cooling tower, at cooling tower) in water vapor condensation Cheng Shui in the reactant, together discharge in company with spraying cooling water.Water-soluble impurity and mechanical impurity are also by flush away in the reactant.
The gas of having removed a large amount of water vapour enters purification system.Contain micro-NO, NO
2And NH
3N
2It is the inferior nitrogen of 99% gas cyaniding that O obtains purity through scavenging tower washing, alkali cleaning, pickling, enters gas-holder; Nitrous Oxide through purifying is pressurized to 5-8MPa by compressor with it, falls the oversaturated free-water in compression back by efficient water sepn, enters the silica gel adsorption dryer group and carries out drying; Dry gas is through rectifying tower, surge tank, and liquefaction is stored in the highly pressurised liquid storage tank for liquid nitrous oxide in the high pressure condenser of water-cooled is arranged.Also can be stored in refrigerated low pressure, the cryogenic liquid tank.Whole technological process can be carried out continuously, all automatizations of operation.
The invention has the beneficial effects as follows, reasonable in design, easy to use, be ideal Nitrous Oxide fabricating technology.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Accompanying drawing number is: 1, reactor, 2, cooling tower, 3, moisture eliminator, 4, rectifying tower, 5, surge tank, 6, compressor, 7, condenser, 8, connection line, 9, charging opening.
Embodiment
With reference to Fig. 1, design has reactor (1), cooling tower (2), moisture eliminator (3), rectifying tower (4), surge tank (5), compressor (6), the condenser (7) of charging opening (9) to be assembled into one by connection line (7) by its system function to constitute.
The present invention all adopts stainless material to make assembling.Operating process: particulate state ammonium nitrate is poured in the intake chute of melting tank, adds the heating of less water and catalyzer (Secondary ammonium phosphate), makes its fusing; The ammonium nitrate of fusing is injected into reactor (1) by injection pump.The product that decomposes at reactor (1) enters cooling tower (2), and the water vapor condensation Cheng Shui in cooling tower (2) in the reactant together discharges in company with spraying cooling water.Water-soluble impurity and mechanical impurity are also by flush away in the reactant.
The gas of having removed a large amount of water vapour enters purification system.Contain micro-NO, NO
2And NH
3N
2It is the inferior nitrogen of 99% gas cyaniding that O obtains purity through washing, alkali cleaning, pickling, enters gas-holder; Nitrous Oxide through purifying is pressurized to 5-8MPa by compressor with it, falls the oversaturated free-water in compression back by efficient water sepn, enters silica gel adsorption moisture eliminator (3) group and carries out drying; Dry gas is through rectifying tower (4), surge tank (5), and liquefaction is stored in the highly pressurised liquid storage tank for liquid nitrous oxide in the high pressure condenser of water-cooled (7) is arranged.Also can be stored in refrigerated low pressure, the cryogenic liquid tank.Whole technological process can be carried out continuously, all automatizations of operation.
Claims (1)
1. an ammonium nitrate decomposes the technology of the inferior nitrogen of oxygenerating, it is characterized in that: design has reactor, cooling tower, moisture eliminator, rectifying tower, surge tank, compressor, the condenser of charging opening to be assembled into one by connection line by its system function to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192463 CN101955167A (en) | 2010-06-07 | 2010-06-07 | Technique for preparing nitrous oxide by decomposing ammonium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192463 CN101955167A (en) | 2010-06-07 | 2010-06-07 | Technique for preparing nitrous oxide by decomposing ammonium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101955167A true CN101955167A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010192463 Pending CN101955167A (en) | 2010-06-07 | 2010-06-07 | Technique for preparing nitrous oxide by decomposing ammonium nitrate |
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| CN (1) | CN101955167A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130203A (en) * | 2011-11-29 | 2013-06-05 | 岳阳昌德化工实业有限公司 | Preparation method of nitrous oxide |
| CN103357262A (en) * | 2013-07-22 | 2013-10-23 | 王新鹏 | System for recovering and purifying nitrous oxide in industrial tail gas |
| CN108483415A (en) * | 2018-06-14 | 2018-09-04 | 北京万机汇机电工程技术有限公司 | A kind of device and method preparing nitrous oxide |
| CN109019539A (en) * | 2018-07-28 | 2018-12-18 | 日照市中心医院 | A kind of department of anesthesia's anesthetic gases purification device quantitatively |
| CN110285645A (en) * | 2019-07-29 | 2019-09-27 | 欧中电子材料（重庆）有限公司 | N2Purifying plant, production system and the method for purification of O |
| CN110841428A (en) * | 2019-10-28 | 2020-02-28 | 宿州伊维特新材料有限公司 | Nitrous oxide's clean system |
| CN111302317A (en) * | 2020-04-02 | 2020-06-19 | 全椒科利德电子材料有限公司 | Continuous high-purity nitrous oxide production system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102986A (en) * | 1975-01-22 | 1978-07-25 | South African Inventions Development Corporation | Process for the continuous manufacture of nitrous oxide |
-
2010
- 2010-06-07 CN CN 201010192463 patent/CN101955167A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102986A (en) * | 1975-01-22 | 1978-07-25 | South African Inventions Development Corporation | Process for the continuous manufacture of nitrous oxide |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130203A (en) * | 2011-11-29 | 2013-06-05 | 岳阳昌德化工实业有限公司 | Preparation method of nitrous oxide |
| CN103130203B (en) * | 2011-11-29 | 2014-08-20 | 岳阳昌德化工实业有限公司 | Preparation method of nitrous oxide |
| CN103357262A (en) * | 2013-07-22 | 2013-10-23 | 王新鹏 | System for recovering and purifying nitrous oxide in industrial tail gas |
| CN103357262B (en) * | 2013-07-22 | 2015-09-09 | 王新鹏 | A kind of for reclaiming and the method for nitrous oxide in purifying industrial tail gas |
| CN108483415A (en) * | 2018-06-14 | 2018-09-04 | 北京万机汇机电工程技术有限公司 | A kind of device and method preparing nitrous oxide |
| CN109019539A (en) * | 2018-07-28 | 2018-12-18 | 日照市中心医院 | A kind of department of anesthesia's anesthetic gases purification device quantitatively |
| CN109019539B (en) * | 2018-07-28 | 2021-07-20 | 日照市中心医院 | Quantitative anesthetic gas purification device for anesthesia department |
| CN110285645A (en) * | 2019-07-29 | 2019-09-27 | 欧中电子材料（重庆）有限公司 | N2Purifying plant, production system and the method for purification of O |
| CN110841428A (en) * | 2019-10-28 | 2020-02-28 | 宿州伊维特新材料有限公司 | Nitrous oxide's clean system |
| CN111302317A (en) * | 2020-04-02 | 2020-06-19 | 全椒科利德电子材料有限公司 | Continuous high-purity nitrous oxide production system and method |
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| PB01 | Publication | ||
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Open date: 20110126 |