CN203498125U - Processing device for raffinate generated in preparation of hydrogen peroxide through anthraquinone - Google Patents
Processing device for raffinate generated in preparation of hydrogen peroxide through anthraquinone Download PDFInfo
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- CN203498125U CN203498125U CN201320474857.8U CN201320474857U CN203498125U CN 203498125 U CN203498125 U CN 203498125U CN 201320474857 U CN201320474857 U CN 201320474857U CN 203498125 U CN203498125 U CN 203498125U
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Abstract
The utility model relates to a processing device for raffinate generated in preparation of hydrogen peroxide through anthraquinone. The processing device comprises an extraction tower, and also comprises a mixing device and a coalescer, wherein an original raffinate outlet in the upper part of the extraction tower is communicated with an original raffinate inlet in the mixing device, a pure water storing tank and a pure water inlet in a mixer are communicated with each other, an outlet for mixed liquid of the original raffinate and pure water in the mixing device is communicated with the inlet of the coalescer, a separated raffinate outlet in the coalescer is connected with aftertreatment processes, and an outlet for an aqueous solution containing less hydrogen peroxide is communicated with the pure water inlet. The processing device removes moisture of the raffinate and also lowers the content of hydrogen peroxide in the raffinate; the separated water containing trace hydrogen peroxide enters the pure water storing tank of the extraction tower to be recycled, so that the overall yield of the hydrogen peroxide is improved. Furthermore, a potassium carbonate drying tower in the prior art is omitted, so that the investment is greatly saved, the operation cost is lowered, and the process is safe.
Description
Technical field:
The utility model relates to a kind of raffinate treatment unit of anthraquinone legal system hydrogen peroxide.
Background technology:
Hydrogen peroxide (hydrogen peroxide) is a kind of chemical of multifunctional and multipurpose.Different in the situation that, can there be oxygenizement or reductive action.Available oxidant, SYNTHETIC OPTICAL WHITNER, sterilizing agent, dechlorinating agent, can be used as rocket fuel, can be used for producing organic or inorganic superoxide, porous plastics and other porous masses etc.Hydrogen peroxide has been widely used in comprising paper pulp/papermaking bleaching as strong oxidizer at present, chemosynthesis, and weaving is bleachinged and dyeing, wastewater treatment, metal processing, microelectronics is produced, food product pack, health care and makeup are medium.
The method of preparing hydrogen peroxide is a lot, but the method for the hydrogen peroxide of commercial size manufacture at present mainly adopts circulation anthraquinone working solution autoxidation (AO) method.
The principle of anthraquinone autoxidation manufacture hydrogen peroxide method is well-known, and the thirties in 20th century, US2158525 and US2215883 just set forth the method; Kirk-Othmer Chemical Engineering Technology encyclopedia, the 3rd edition, the 13rd volume, (1981), and 15-22 page has also been introduced except anthraquinone, and other manufacture the method for hydrogen peroxide.Ullman chemical industry is complete works of, and the 5th edition, the 3rd volume, 447-456 page, has also summarized the production hydrogen peroxide process of anthraquinone AO method.
Circulation A/O method production process is: under catalyzer exists, under certain temperature and pressure, alkyl-anthraquinone (hereinafter to be referred as anthraquinone) and hydrogen reaction in working fluid (organic solution that alkyl-anthraquinone and mixed organic solvents are made into by a certain percentage), generate corresponding hydrogen anthraquinone, now the working fluid after hydrogenation is called hydride, hydrogen anthraquinone in hydride reacts with the oxygen in gas, generate original anthraquinone and hydrogen peroxide, now hydride has become oxidation solution, oxidation solution obtains aqueous hydrogen peroxide solution through pure water extraction, raffinate circulates after treatment and returns to hydrogenation process.
In extraction process, extraction rear oxidation liquid (hereinafter referred to as raffinate) can be carried small part aqueous hydrogen peroxide solution secretly, if this part aqueous hydrogen peroxide solution enters hydrogenation reactor, hydrogen peroxide is met palladium catalyst decomposition and produced oxygen, at hydrogenation reactor, have under a large amount of hydrogen atmospheres, easily blast; And water has destruction to support of the catalyst intensity.Existing technology is: the raffinate out from extraction tower top, through raffinate slurry tank, divide after water, and after solution of potassium carbonate decomposition of hydrogen peroxide and dehydration, then enter hydrogenation reactor after working fluid activated alumina bed.This long flow path, and salt of wormwood is easily entrained to extraction tower, so cause extraction tower hydrogen peroxide to decompose when serious extraction tower muddiness can occur, flash even explodes.The continuous water suction of wet chemical will regularly replace in addition, steams water treatment, and must again prepare new wet chemical after reusing several times, operates cumbersomely, and running cost is high.
Utility model content:
The utility model technical problem to be solved in the utility model is to provide for the existing problem of above-mentioned prior art a kind of raffinate treatment unit of anthraquinone legal system hydrogen peroxide.First this device by fully mixing the raffinate that out contains a small amount of hydrogen peroxide from extraction tower in mixing tank with a small amount of pure water, then enters coalescer and carry out profit two and be separated.
The technical scheme that technical problem to be solved in the utility model adopts is as follows:
A raffinate treatment unit for anthraquinone legal system hydrogen peroxide, comprises extraction tower, and the top of described extraction tower is provided with initial raffinate outlet, it is characterized in that, also comprises at least one mixing equipment, a coalescer; On described mixing equipment, there is initial raffinate entrance and pure water entrance and initial raffinate and pure water mixture export; Described coalescer has initial raffinate and pure water mixture inlet, isolates raffinate outlet, containing a small amount of aqueous hydrogen peroxide solution, exports; Wherein the initial raffinate outlet from extraction tower top is communicated with the initial raffinate entrance mixing equipment by pipeline, pure water storage tank is communicated with the pure water entrance on mixing tank by pipeline; Initial raffinate on mixing equipment is communicated with coalescer entrance with pure water mixture export by pipeline; By pipeline, be communicated with pure water storage tank, the raffinate outlet of isolating on coalescer connects postprocessing working procedures by pipeline, containing a small amount of aqueous hydrogen peroxide solution outlet, by pipeline, is communicated with the pure water reuse mouth of pure water storage tank.
In a preferred embodiment of the present utility model, described mixing equipment is selected from static mixer, Venturi, stirring tank, high speed shear mixing machine, pump formula mixing tank, jet mixer, impinging streams mixer, overweight machine or microstructure mixing tank, preferably uses static mixer.
In a preferred embodiment of the present utility model, described coalescer is horizontal coalescer or vertical coalescer.
In a preferred embodiment of the present utility model, the coalescence material in described coalescer is selected from Pall ring, Raschig ring, saddle ring, porous foam, particle, flap, arc, waved plate, wire packing, huddles fiber or fabric.
Described particle is ball.
Described wire packing is for being wound around wire packing or tiling wire packing.
The material of the coalescence material in described coalescer is the material of resisting hydrogen peroxide, raffinate.
Principle of work of the present utility model is: after extraction tower out contains and mixes in the initial raffinate of a small amount of hydrogen peroxide and a small amount of pure water input mixer, then entering coalescer carries out profit two and is separated, oil phase (removing the raffinate of moisture content) flows out and enters postprocessing working procedures from raffinate outlet, and isolated water (containing a small amount of aqueous hydrogen peroxide solution) re-uses from the pure water storage tank that enters extraction tower containing a small amount of aqueous hydrogen peroxide solution outlet.
The pure water that the utility model is used is the acid deionized water of preparation, and the ratio range of its flow and raffinate flow is 0.1～0.01, and preferred range of ratios is 0.1～0.03.Technological operation temperature of the present utility model is 40～60 ℃, pressure 0.1～1.0MPa.
The utility model in water, has also reduced content of hydrogen peroxide in raffinate in removing raffinate.In addition, the utility model has saved the dry tower of salt of wormwood of prior art, has saved investment, has reduced the features such as running cost, process be safer.
Accompanying drawing explanation:
Fig. 1 is schematic flow sheet of the present utility model
Label declaration: 1-pure water storage tank, 1a-pure water water inlet pipe, 1b-purified water inlet, the outlet of 1c-pure water, 1d-pure water reuse mouth, 2-oxidation solution intake pipeline, 3-pure water pump, 4-extraction tower, 4a-oxidation solution entrance, 4b-pure water entrance, the initial raffinate outlet of 4c-, the outlet of 4d-aqueous hydrogen peroxide solution, 4e-aqueous hydrogen peroxide solution export pipeline, 5-pure water delivery manifold, 5a, 5b-pure water is carried arm, 6-pure water entrance, the initial raffinate import of 7-, the initial raffinate export pipeline of 7a-, 8-mixing equipment, the initial raffinate of 9-and pure water mixture export, the initial raffinate of 9a-and pure water mixed solution export pipeline, 10-coalescer, 10a-coalescer entrance, 11-isolates raffinate outlet, 12-is containing a small amount of aqueous hydrogen peroxide solution outlet, 13-is containing a small amount of aqueous hydrogen peroxide solution export pipeline, 14-aqueous hydrogen peroxide solution.
Embodiment:
Below in conjunction with the drawings and specific embodiments, further describe the utility model.
Referring to Fig. 1, the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide providing in figure, comprises extraction tower 4, mixing device 8 and a coalescer 10.
The bottom of extraction tower 4 has oxidation solution entrance 4a, and bottom has aqueous hydrogen peroxide solution outlet 4d, and top has pure water entrance 4b and initial raffinate outlet 4c.
On mixing equipment 8, there is pure water entrance 6 and initial raffinate import 7 and initial raffinate and pure water mixture export 9.
Coalescer 10 has coalescer entrance 10a, isolates raffinate outlet 11, containing a small amount of aqueous hydrogen peroxide solution, exports 12.
On pure water storage tank 1, there is purified water inlet 1b, pure water outlet 1c and pure water reuse mouth 1d.
Purified water inlet 1b on pure water storage tank 1 meets pure water water inlet pipe 1a, by pure water water inlet pipe 1a, to pure water storage tank 1, supplements pure water.The upper one end that connects pure water delivery manifold 5 of pure water outlet 1c, pure water delivery manifold 5 the other end connects one end that pure water is carried arm 5a, 5b.Pure water carries the other end of arm 5a to connect the pure water entrance 4b on extraction tower 4, and pure water carries the other end of arm 5b to be connected to the pure water entrance 6 on mixing equipment 8, to carry pure water to extraction tower 4 and mixing equipment 8 respectively.In pure water delivery manifold 5 serial connection one pure water pump 3.
Initial raffinate on mixing equipment 8 is connected one end of initial raffinate and pure water mixed solution export pipeline 9a with pure water mixture export 9, the other end of initial raffinate and pure water mixed solution export pipeline 9a is connected to the coalescer entrance 10a on coalescer 10.One end connecting containing a small amount of aqueous hydrogen peroxide solution export pipeline 13 containing a small amount of aqueous hydrogen peroxide solution outlet 12 on mixing equipment 8, containing the pure water reuse mouth 1d on another termination pure water storage tank 1 of a small amount of aqueous hydrogen peroxide solution export pipeline 13.
The raffinate treatment unit working process of above-mentioned anthraquinone legal system hydrogen peroxide is as follows: the oxidation solution that contains hydrogen peroxide enters extraction tower 4 by the oxidation solution entrance 4a on oxidation solution intake pipeline 2 and extraction tower 4, pure water in pure water storage tank 1 carries the pure water entrance 4b on arm 5a and extraction tower 4 to enter in extraction tower 4 through pure water pump 3, pure water delivery manifold 5, pure water, with the oxidation solution counter-current extraction that contains hydrogen peroxide entering in extraction tower 4, from extraction tower 4 bottoms, flow out aqueous hydrogen peroxide solution 14.
Initial raffinate outlet 4c from the extraction tower 4 initial raffinate that contains a small amount of hydrogen peroxide is out entered in mixing equipment 8 by the initial raffinate import 7 mixing equipment 8 by initial raffinate export pipeline 7a, mix with the pure water of carrying the pure water entrance 6 on arm 5b and mixing equipment 8 to enter in mixing equipment 8 by pure water pump 3, pure water delivery manifold 5, pure water, in mixing process, the flow of pure water is 0.1～0.01 with the ratio range of initial raffinate flow, and preferred range of ratios is 0.1～0.03.
Mixed initial raffinate and pure water mixed solution are by initial raffinate and pure water mixture export 9, coalescer entrance 10a on initial raffinate and pure water mixed solution export pipeline 9a and coalescer 10 enters and in coalescer 10, carries out profit two and be separated, isolate raffinate outlet 11 outflows of oil phase (removing the raffinate of moisture content) from coalescer 10 enter next process, the contain a small amount of aqueous hydrogen peroxide solution of isolated water (containing a small amount of aqueous hydrogen peroxide solution) from coalescer 10 exports 12, containing the pure water reuse mouth 1d on a small amount of aqueous hydrogen peroxide solution export pipeline 13 and pure water storage tank 1, entering pure water storage tank 1 re-uses.
The service temperature of whole treating processes is 40～60 ℃, pressure 0.1～1.0Mpa.
Above-mentioned mixing equipment 8 is used static mixer.
Coalescer 10 is horizontal coalescer.Coalescence material in it is selected from Pall ring, Raschig ring, saddle ring, perforated foams, ball, particle, flap, arc, waved plate, winding wire packing, tiling wire packing, and perforated foams filler, huddles fiber or fabric.Material is the material of resisting hydrogen peroxide, raffinate.
Feature of the present utility model is: in removing raffinate, in moisture content, reduced content of hydrogen peroxide in raffinate.The isolated pure water storage tank reuse that enters extraction tower containing the water of Trace Hydrogen Peroxide, has improved the whole yield of hydrogen peroxide.In addition, also save the dry tower of salt of wormwood of prior art, greatly saved investment, reduce running cost, process is also safer.
Claims (6)
1. a raffinate treatment unit for anthraquinone legal system hydrogen peroxide, comprises extraction tower, and the top of described extraction tower is provided with initial raffinate outlet, it is characterized in that, also comprises at least one mixing equipment, a coalescer; On described mixing equipment, there is initial raffinate entrance and pure water entrance and initial raffinate and pure water mixture export; Described coalescer has initial raffinate and pure water mixture inlet, isolates raffinate outlet, containing a small amount of aqueous hydrogen peroxide solution, exports; Wherein the initial raffinate outlet from extraction tower top is communicated with the initial raffinate entrance mixing equipment by pipeline, pure water storage tank is communicated with the pure water entrance on mixing tank by pipeline; Initial raffinate on mixing equipment is communicated with coalescer entrance with pure water mixture export by pipeline; By pipeline, be communicated with pure water storage tank, the raffinate outlet of isolating on coalescer connects postprocessing working procedures by pipeline, containing a small amount of aqueous hydrogen peroxide solution outlet, by pipeline, is communicated with the pure water reuse mouth of pure water storage tank.
2. the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide as claimed in claim 1, it is characterized in that, described mixing equipment is selected from static mixer, Venturi, stirring tank, high speed shear mixing machine, pump formula mixing tank, jet mixer, impinging streams mixer, overweight machine or microstructure mixing tank.
3. the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide as claimed in claim 1, is characterized in that, described coalescer is horizontal coalescer or vertical coalescer.
4. the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide as described in claim 1 or 3, it is characterized in that, the coalescence material in described coalescer is selected from Pall ring, Raschig ring, saddle ring, porous foam, particle, flap, arc, waved plate, wire packing, huddles fiber or fabric.
5. the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide as claimed in claim 4, is characterized in that, described particle is ball.
6. the raffinate treatment unit of a kind of anthraquinone legal system hydrogen peroxide as claimed in claim 4, is characterized in that, described wire packing is for being wound around wire packing or tiling wire packing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320474857.8U CN203498125U (en) | 2013-08-02 | 2013-08-02 | Processing device for raffinate generated in preparation of hydrogen peroxide through anthraquinone |
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| CN201320474857.8U CN203498125U (en) | 2013-08-02 | 2013-08-02 | Processing device for raffinate generated in preparation of hydrogen peroxide through anthraquinone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909340A (en) * | 2015-06-02 | 2015-09-16 | 傅骐 | Method for directly extracting 50%-above high-concentration H2O2 |
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2013
- 2013-08-02 CN CN201320474857.8U patent/CN203498125U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909340A (en) * | 2015-06-02 | 2015-09-16 | 傅骐 | Method for directly extracting 50%-above high-concentration H2O2 |
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