CN103755573A - Application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology - Google Patents
Application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology Download PDFInfo
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- CN103755573A CN103755573A CN201410000351.2A CN201410000351A CN103755573A CN 103755573 A CN103755573 A CN 103755573A CN 201410000351 A CN201410000351 A CN 201410000351A CN 103755573 A CN103755573 A CN 103755573A
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- sodium chloride
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- nitroanisole
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Abstract
The invention discloses application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology. The application comprises the steps of implementing reaction on sodium methylate and o-nitrochlorobenzene to obtain o-nitroanisole and by-produce sodium chloride, filtering the by-produced sodium chloride through a 200-mesh filter to obtain damp sodium chloride, washing the damp sodium chloride through methanol and filtering the damp sodium chloride to obtain relatively clean sodium chloride which contains trace organic substance, burning the sodium chloride for 10min in an incinerator at 500 DEG C to burn the organic substance in the sodium chloride into carbide, thus obtaining grey sodium chloride, thinning the sodium chloride through water to obtain saturated salt water, filtering the saturated salt water through a filter to remove carbide of the organic substance, thus obtaining pure salt water, and delivering the pure salt water to a chlor-alkali plant to prepare caustic soda. According to the application, sodium chloride is recycled, so as to save energy and reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of method of preparing o-Nitrophenyl methyl ether and sodium-chlor, particularly a kind of method of simultaneously preparing o-Nitrophenyl methyl ether and sodium-chlor.
Background technology
In prior art, the preparation method of o-Nitrophenyl methyl ether is generally: after o-Nitrochlorobenzene is squeezed into scale tank with pump, add etherificate still; From water scale tank, add water; After being squeezed into scale tank with pump, o-Nitrochlorobenzene enters still; From sodium methylate storage tank, with pump, squeeze into sodium methylate to scale tank, then to sodium methylate scale tank and etherifying reactor, add pressurized air with air compressor, heat up and drip sodium methylate, control rate of addition, temperature; After dropwising, etherifying reactor is boosted, heats up and react, sampling analysis, qualified rear cooling, is depressed into etherificate liquid bath with pressurized air; After washing, layering draws o-Nitrophenyl methyl ether, sodium-chlor and water dissolution discharge.Because the method will just can make o-Nitrophenyl methyl ether through washing, therefore consumed more water resources, and complex procedures, in the time of water discharge, also to environment, increased burden.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of without washing, and can prepare the method for o-Nitrophenyl methyl ether and sodium-chlor simultaneously, described method economy, efficient, and environmentally friendly.For achieving the above object, the present invention is by the following technical solutions:
A kind of o-Nitrophenyl methyl ether byproduct sodium chloride is for the method for chloralkali process, comprise the following steps: with sodium methylate and o-Nitrochlorobenzene reaction generation o-Nitrophenyl methyl ether, the sodium-chlor of by-product, with 200 order strainers, filter and obtain damp product sodium-chlor, by methanol wash, refilter and obtain cleaner damp product sodium-chlor, but micro-content organism is contained in the inside, sodium-chlor is delivered to 500 ℃ of burnings of incinerator and the organism in sodium-chlor was burnt till to carbide in 10 minutes, obtain canescence sodium-chlor, dilute with water sodium-chlor, to saturated brine, with strainer, filter again, organic carbide is filtered out, obtain clear brine, send chlor-alkali plant to prepare caustic soda.
Advantage of the present invention is: without washing, save Water Energy, reduced pollution.
Embodiment
Embodiment 1:
With sodium methylate and o-Nitrochlorobenzene reaction generation o-Nitrophenyl methyl ether, the sodium-chlor sodium of by-product, with 200 order strainers, filter and obtain damp product sodium-chlor, by methanol wash, refilter and obtain cleaner damp product sodium-chlor, but micro-content organism is contained in the inside, sodium-chlor is delivered to 500 ℃ of burnings of incinerator and the organism in sodium-chlor was burnt till to carbide in 10 minutes, obtain canescence sodium-chlor, dilute with water sodium-chlor, to saturated brine, with strainer, filter again, organic carbide is filtered out, obtain clear brine, send chlor-alkali plant to prepare caustic soda.
Claims (1)
1. an o-Nitrophenyl methyl ether byproduct sodium chloride is for the method for chloralkali process, comprise the following steps: with sodium methylate and o-Nitrochlorobenzene reaction generation o-Nitrophenyl methyl ether, the sodium-chlor of by-product, with 200 order strainers, filter and obtain damp product sodium-chlor, by methanol wash, refilter and obtain cleaner damp product sodium-chlor, but micro-content organism is contained in the inside, sodium-chlor is delivered to 500 ℃ of burnings of incinerator and the organism in sodium-chlor was burnt till to carbide in 10 minutes, obtain canescence sodium-chlor, dilute with water sodium-chlor, to saturated brine, with strainer, filter again, organic carbide is filtered out, obtain clear brine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000351.2A CN103755573A (en) | 2014-01-02 | 2014-01-02 | Application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000351.2A CN103755573A (en) | 2014-01-02 | 2014-01-02 | Application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103755573A true CN103755573A (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410000351.2A Pending CN103755573A (en) | 2014-01-02 | 2014-01-02 | Application of o-nitroanisole by-produced sodium chloride in chlor-alkali technology |
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| CN (1) | CN103755573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105566121A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Method for reducing generation of nitrophenol in preparation process of nitroanisole |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039798A (en) * | 1988-07-14 | 1990-02-21 | 弗由兹伏化工厂 | The preparation method of methoxyacetic acid |
| CN101348266A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Comprehensive processing method of N-phosphonomethyliminodiacelic acid mother liquor |
| CN102276483A (en) * | 2011-06-30 | 2011-12-14 | 辽宁世星药化有限公司 | Production method of oamino pheylmethyl ether |
-
2014
- 2014-01-02 CN CN201410000351.2A patent/CN103755573A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039798A (en) * | 1988-07-14 | 1990-02-21 | 弗由兹伏化工厂 | The preparation method of methoxyacetic acid |
| CN101348266A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Comprehensive processing method of N-phosphonomethyliminodiacelic acid mother liquor |
| CN102276483A (en) * | 2011-06-30 | 2011-12-14 | 辽宁世星药化有限公司 | Production method of oamino pheylmethyl ether |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105566121A (en) * | 2014-10-11 | 2016-05-11 | 中国石油化工股份有限公司 | Method for reducing generation of nitrophenol in preparation process of nitroanisole |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140430 |