CN102212011A - Method for preventing nitration product rectifying tower from exploding - Google Patents
Method for preventing nitration product rectifying tower from exploding Download PDFInfo
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- CN102212011A CN102212011A CN2011100894763A CN201110089476A CN102212011A CN 102212011 A CN102212011 A CN 102212011A CN 2011100894763 A CN2011100894763 A CN 2011100894763A CN 201110089476 A CN201110089476 A CN 201110089476A CN 102212011 A CN102212011 A CN 102212011A
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- rectifying tower
- nitration product
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- percent
- exploding
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Abstract
The invention relates to a method for preventing a nitration product rectifying tower from exploding. The method comprises the following steps of: adding a stabilizing agent into a rectifying tower kettle, wherein the stabilizing agent is prepared by mixing bentonite, polyphosphoric acid and an acrylic acid-acrylic ester copolymer; and adding 1-5 percent by mass of stabilizing agent into the rectifying tower kettle. Preferably, the stabilizing agent is prepared by mixing 10-80 percent by mass of bentonite, 15-85 percent by mass of polyphosphoric acid and 5-75 percent by mass of acrylic acid-acrylic ester copolymer. Due to the adoption of the method, the generation and the accumulation of dangerous components can be prevented, the explosion of the tower kettle is effectively prevented, and the stable running of the tower kettle is ensured.
Description
Technical field
The present invention relates to a kind of method that prevents the blast of nitration product rectifying tower, particularly a kind of by adding the method that stablizer prevents that the nitration product rectifying tower from exploding.
Background technology
Nitration product is meant and contains phenyl ring in the molecular structure, through the mixture that nitration reaction obtains, is important organic raw material in productions such as current chemical industry, medicine, agricultural chemicals.
Yet serious tower still explosion hazard often takes place in existing nitration product rectifier unit, causes great personnel's injury, financial loss and bad social influence.Cause the reason of tower still blast to have a lot, as, the generation and the gathering of hazardous material that sets off an explosion easily such as nitrophenol sodium salt; Has ignition source of certain energy or the like.
Yet, also lack the method that can effectively prevent the blast of nitration product rectifying tower in the prior art.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method that prevents the blast of nitration product rectifying tower, in the rectifying tower still, add stablizer, described stablizer is made up of wilkinite, polyphosphoric acid and acrylic acid and acrylic ester copolymers uniform mixing, and the ratio according to 1%-5% (mass percent) adds in the rectifying tower still then.
Preferably, described stablizer is by the wilkinite of 10-80% (mass percent), the polyphosphoric acid of 15-85% (mass percent), and the acrylic acid and acrylic ester copolymers of 5-75% (mass percent) is formed.
Adopt method of the present invention, can prevent the generation and the accumulation of dangerous component, prevent the blast of tower still effectively, guarantee that the tower still stably moves.
Embodiment
A kind of method that prevents the blast of nitration product rectifying tower, in the rectifying tower still, add stablizer, described stablizer is made up of wilkinite, polyphosphoric acid and acrylic acid and acrylic ester copolymers uniform mixing, and the ratio according to 1%-5% (mass percent) adds in the rectifying tower still then.
Embodiment 1:
It with mass percent 10% wilkinite, 15% polyphosphoric acid and 75% acrylic acid and acrylic ester copolymers are uniformly mixed into stablizer, be that 1% ratio adds in the rectifying tower still then by mass percentage, evidence, add the aforementioned stable agent, can prevent the generation and the accumulation of dangerous component in the rectifying tower still, prevent the blast of tower still, guarantee that the tower still stably moves.
Embodiment 2:
It with mass percent 80% wilkinite, 15% polyphosphoric acid and 5% acrylic acid and acrylic ester copolymers are uniformly mixed into stablizer, be that 5% ratio adds in the rectifying tower still then by mass percentage, evidence, add the aforementioned stable agent, can prevent the generation and the accumulation of dangerous component in the rectifying tower still, prevent the blast of tower still, guarantee that the tower still stably moves.
Claims (2)
1. method that prevents nitration product rectifying tower blast, it is characterized in that, add stablizer in the rectifying tower still, described stablizer is made up of wilkinite, polyphosphoric acid and acrylic acid and acrylic ester copolymers uniform mixing, and the ratio according to 1%-5% adds in the rectifying tower still then.
2. the method that prevents nitration product rectifying tower blast as claimed in claim 1 is characterized in that, described stablizer is by the wilkinite of 10-80%, the polyphosphoric acid of 15-85%, and vinylformic acid one acrylate copolymer of 5-75% is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089476 CN102212011B (en) | 2011-04-11 | 2011-04-11 | Method for preventing nitration product rectifying tower from exploding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089476 CN102212011B (en) | 2011-04-11 | 2011-04-11 | Method for preventing nitration product rectifying tower from exploding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102212011A true CN102212011A (en) | 2011-10-12 |
| CN102212011B CN102212011B (en) | 2013-08-14 |
Family
ID=44743581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110089476 Active CN102212011B (en) | 2011-04-11 | 2011-04-11 | Method for preventing nitration product rectifying tower from exploding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102212011B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214374A (en) * | 2013-05-05 | 2013-07-24 | 竺叶洪 | Stabilizer in nitrobenzene production process and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1120388A1 (en) * | 1996-08-06 | 2001-08-01 | Basf Aktiengesellschaft | Use of pyrazol derivatives as nitrification inhibitors |
| CN101191033A (en) * | 2006-11-29 | 2008-06-04 | 希尔蒂股份公司 | Intumescing, multi-component epoxide resin-coating composition for fire protection and its use |
-
2011
- 2011-04-11 CN CN 201110089476 patent/CN102212011B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1120388A1 (en) * | 1996-08-06 | 2001-08-01 | Basf Aktiengesellschaft | Use of pyrazol derivatives as nitrification inhibitors |
| CN101191033A (en) * | 2006-11-29 | 2008-06-04 | 希尔蒂股份公司 | Intumescing, multi-component epoxide resin-coating composition for fire protection and its use |
Non-Patent Citations (3)
| Title |
|---|
| PIERRE LASZLO: "Regioselective Nitration of Aromatic Hydrocarbons by Metallic Nitrates on the K10 Montmorillonite under Menke Conditions", 《CHEMISTRY LETTERS》 * |
| 刘丽荣: "甲苯催化硝化反应研究进展", 《含能材料》 * |
| 刘丽荣等: "《甲苯区域选择性硝化的研究进展》", 《火炸药学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214374A (en) * | 2013-05-05 | 2013-07-24 | 竺叶洪 | Stabilizer in nitrobenzene production process and application thereof |
| CN103214374B (en) * | 2013-05-05 | 2014-06-18 | 竺叶洪 | Stabilizer in nitrobenzene production process and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102212011B (en) | 2013-08-14 |
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