AU2020102893A4 - Extraction Device for Producing Hydrogen Peroxide with Anthraquinone Method - Google Patents
Extraction Device for Producing Hydrogen Peroxide with Anthraquinone Method Download PDFInfo
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- AU2020102893A4 AU2020102893A4 AU2020102893A AU2020102893A AU2020102893A4 AU 2020102893 A4 AU2020102893 A4 AU 2020102893A4 AU 2020102893 A AU2020102893 A AU 2020102893A AU 2020102893 A AU2020102893 A AU 2020102893A AU 2020102893 A4 AU2020102893 A4 AU 2020102893A4
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Abstract
The application discloses an extraction device for producing hydrogen peroxide
with the anthraquinone method, comprising an extraction column, an enriching mixer
and a circulating pump, wherein, the extraction column is divided into an oil phase
5 settling section, an extraction section and a water phase settling section from top to
bottom; an oil phase outlet is arranged at the oil phase settling section, a pure water
inlet and an oil phase inlet are arranged at the extraction section, a plurality of sieve
plates are arranged in the extraction section from top to bottom at intervals, and the
oil phase inlet is arranged between two lowermost sieve plates in the extraction
o section; the enriching mixer has two inlets, one connected with an oil phase inlet pipe
and the other connected with the upper liquid outlet of the water phase settling
section through the circulating pump and the pipeline; the enriching mixer is
connected with the oil phase inlet through the pipeline; and water phase extract is
discharged from the bottom of the water phase settling section. Compared with the
5 existing extraction column, the extraction column of the application is lower, there are
fewer sieve plates in the extraction column, and the equipment investment cost is
lower. With the extraction device of the application, continuous, stable and efficient
extraction can be achieved for the hydrogen peroxide component in the oxidation
solution.
Description
P/00/009 Regulation 3.2 AUSTRALIA Patents Act 1990
Invention title: Extraction Device for Producing Hydrogen Peroxide with Anthraquinone Method
Name of Applicant: China National Air Separation Engineering Co., Ltd.
Address for Service A.P.T. Patent and Trade Mark Attorneys PO Box 833 Blackwood, S.A. 5051
The invention is described in the following statement:
Technical Field The application relates to an extraction device for producing hydrogen peroxide with the anthraquinone method.
Background Hydrogen peroxide is an important green chemical product, widely applied to the o chemical industry, textile, paper making, environmental protection and other industries as oxidizing agents, bleaching agents, disinfectants, etc. At present, the method for producing hydrogen peroxide is the anthraquinone method which includes the following steps: hydrogenating anthraquinone in the working solution into hydrogenated solution; the hydrogenated solution reacts with oxygen to produce oxidation solution containing hydrogen peroxide; and the oxidation solution is in countercurrent contact with pure water for extraction in the extraction column to produce hydrogen peroxide solution. However, the traditional extraction equipment and technological method are used for extracting the hydrogen peroxide in the oxidation solution, with very low extraction efficiency; in order to achieve a better extraction effect, multiple sieve plates are needed in the extraction column. Accordingly, the extraction column is too high, and the equipment investment cost is high.
Summary To solve the above-mentioned technical problems in the prior art, the application aims to provide an extraction device for producing hydrogen peroxide with with anthraquinone method. The extraction device for producing hydrogen peroxide with the anthraquinone method is characterized in that it comprises an extraction column, an enriching mixer and a circulating pump, wherein, the extraction column is divided into an oil phase settling section, an extraction section and a water phase settling section from top to bottom; an oil phase outlet is arranged at the oil phase settling section, a pure water inlet and an oil phase inlet are arranged at the extraction section, a plurality of sieve plates are arranged in the extraction section from top to bottom at intervals, and the oil phase inlet is arranged between the two lowermost sieve plates in the extraction section; the enriching mixer has two inlets, one connected with an oil phase inlet pipe used for inputting oxidation solution, and the other connected with the upper liquid outlet of the water phase settling section through the circulating pump and the pipeline; the enriching mixer is connected with the oil phase inlet through the o pipeline; and water phase extract is discharged from the bottom of the water phase settling section. The extraction device for producing hydrogen peroxide with the anthraquinone method is characterized in that anti-backmixing packings are arranged in the oil phase settling section, and the oil phase outlet is arranged above the anti-backmixing packings. The extraction device for producing the hydrogen peroxide with the anthraquinone method is characterized in that the pure water inlet is arranged above the uppermost sieve plate in the extraction section, and close to the uppermost sieve plate in the extraction section. The extraction device for producing the hydrogen peroxide with the anthraquinone method is characterized in that each sieve plate comprises a circular plate cooperatively arranged in the extraction section, a plurality of small holes used for oil phase liquid to pass are formed in each circular plates uniformly, and a plurality of downcomers used for water phase liquid to pass are arranged on the lower surface of each circular plate uniformly. The extraction device has the following beneficial effects: The extraction process in the extraction column of the application is that: the light phase (the oxidation solution) enters the bottom of the extraction column; the hydrogen peroxide solution floats upwards in the extraction column by itself continuously depending on the different solubility of the hydrogen peroxide in the water and the oxidation solution; dispersed droplets are formed after the solution passes sieve plates; and the dispersed droplets reach the top gradually, and flow out by itself. The hydrogen peroxide enters water from oxidation solution droplets continuously in the downward flow process of heavy phase (pure water), and extract can be obtained from the bottom of the column. In this application, the properly settled solution in the water phase settling section at the lower section of the extraction column are called water phase extract, and the solution flowing through the anti-backmixing packings upwards in the oil phase settling section at the upper section of the extraction column are called oil phase raffinate. A part of water phase extract (namely hydrogen peroxide solution) properly settled in the water phase settling section at the lower section of the extraction column is pumped out through the circulating pump, and pumped into the enriching mixer together with fresh oxidation solution for mixing in advance; a part of hydrogen peroxide in the fresh oxidation solution is transferred into the water phase before entering the extraction column; in this way, the theoretical number of the sieve plates in the extraction column can be reduced effectively, the height of the extraction column is reduced, and the concentration of the hydrogen peroxide in the water phase extract discharged from the bottom of the water phase settling section is further improved. In addition, as the density of the water phase extract is large (for example, the density of 30% H 2 02 solution is 1.11 g/mL or so, which is higher than that of the pure water), after the fresh oxidation solution is mixed with the water phase extract through the enriching mixer in advance, the oxidation solution and the water phase extract can be layered quickly between the two lowermost sieve plates in the extraction section under the action of a larger density difference between the oxidation solution and the water phase extract; the water phase extract is easy to settle to the position below the lowest sieve plate and enter the water phase settling section.. As a result, with the extraction device of the application, continuous, stable and efficient extraction can be achieved for the hydrogen peroxide component in the oxidation solution.
Brief Description of the Drawings FIG. 1 is the structural view of the extraction device for producing hydrogen peroxide with the anthraquinone method of the application; In FIG. 1: 1-extraction column, 101-oil phase settling section, 102-extraction section, 103-water phase settling section, la-pure water inlet, lb-oil phase inlet, 1c-oil phase outlet, 2-enriching mixer, 3-circulating pump, 4-oil phase inlet pipe.
Detailed Description of the Preferred Embodiments The invention is further described in detail in conjunction with the specific embodiments, but the protection scope of the invention is not limited to such embodiments. Embodiment: As shown in FIG. 1 An extraction device for producing hydrogen peroxide with the anthraquinone method comprises an extraction column 1, an enriching mixer 2 and a circulating pump 3, wherein, the extraction column 1 is divided into an oil phase settling section 101, an extraction section 102 and a water phase settling section 103 from top to bottom; an oil phase outlet 1c is arranged at the oil phase settling section 101, a pure water inlet la and an oil phase inlet lb are arranged at the extraction section 102, a plurality of sieve plates are arranged in the extraction section 102 from top to bottom at intervals, and the oil phase inlet lb is arranged between the two lowermost sieve plates in the extraction section 102; the enriching mixer 2 has two inlets, one connected with an oil phase inlet pipe 4 used for inputting oxidation solution, and the other connected with the upper liquid outlet of the water phase settling section 103 through the circulating pump and the pipeline 3; the enriching mixer 2 is connected with the oil phase inlet lb through the pipeline; and clarified water phase extract is discharged from the liquid outlet at the bottom of the water phase settling section 103. As shown in FIG. 1, the anti-backmixing packings are arranged in the oil phase settling section 101, the oil phase outlet 1c is arranged above the anti-backmixing packings, and the oil phase raffinate extracted properly flows through the anti-backmixing packings in the oil phase settling section 101, and is discharged out from the oil phase outlet 1c. As shown in FIG. 1, the pure water inlet la is arranged above the uppermost sieve plate in the extraction section 102, and close to the uppermost sieve plate in the extraction section 102. In this embodiment, each sieve plate comprises a circular plate cooperatively arranged in the extraction section 102, and a plurality of small holes used for oil phase liquid to pass are formed in each circular plate uniformly, a plurality of o downcomers used for water phase liquid to pass are arranged on the lower surface of each circular plate uniformly. The layering phenomenon of upper oil phase layer and lower water phase layer exists between every two adjacent sieve plates in the extraction section 102. When the extraction device of the application is used for extraction of the oxidation solution containing hydrogen peroxide, the pure water is introduced into the extraction column 1 through the pure water inlet la in the extraction section 102. Meanwhile, a part of water phase extract (namely hydrogen peroxide solution) properly settled in the water phase settling section is pumped out through the circulating pump, and pumped into the enriching mixer together with fresh oxidation solution introduced through the oil phase inlet pipe 4, and two solutions are mixed in advance; and the mixture of the oxidation solution and the water phase extract are introduced into the extraction column 1 through the oil phase inlet 1b in the extraction section 102. In addition, as the concentration of the hydrogen peroxide in the water phase extract (namely hydrogen peroxide solution) is high, the higher the concentration of the hydrogen peroxide solution, the larger the density of the hydrogen peroxide solution. The oil phase inlet lb is arranged between the two lowermost sieve plates in the extraction section 102, and the mixture of the oxidation solution and the water phase extract mixed in advance through the enriching mixer are delivered to the position between the two lowermost sieve plates in the extraction section 102. As there is a large density difference between the oxidation solution and the water phase extract, the water phase extract in the mixture can be separated and settled through a sieve plate; thus, no oil phase solvent is included in the water phase extract discharged from the bottom liquid outlet of the water phase settling section 103. The contents as stated in the specification are only the examples of the concept realization form of the invention, and the protection scope of the invention should not be regarded as being limited to the concrete form of the embodiments only.
Claims (4)
- WHAT IS CLAIMED IS: 1. An extraction device for producing hydrogen peroxide with the anthraquinone method, characterized in that it comprises an extraction column (1), an enriching mixer (2) and a circulating pump (3), wherein, the extraction column (1) is divided into an oil phase settling section (101), an extraction section (102) and a water phase settling section (103) from top to bottom; an oil phase outlet (1c) is arranged at the oil phase settling section (101), a pure water inlet (1a) and an oil phase inlet (1b) are arranged at the extraction section, a plurality of sieve plates are arranged in the extraction section (102) from top to bottom at intervals, and the oil phase inlet (1b) is o arranged between the two lowermost sieve plates in the extraction section (102); the enriching mixer (2) has two inlets, one connected with an oil phase inlet pipe (4) used for inputting oxidation solution, and the other connected with the upper liquid outlet of the water phase settling section (103) through the circulating pump and the pipeline (3); the enriching mixer (2) is connected with the oil phase inlet (1b) through the pipeline; and clarified water phase extract is discharged from the liquid outlet at the bottom of the water phase settling section (103).
- 2. The extraction device for producing hydrogen peroxide with the anthraquinone method according to Claim 1, characterized in that anti-backmixing packings are arranged in the oil phase settling section (101), and the oil phase outlet (1c) is arranged above the anti-backmixing packings.
- 3. The extraction device for producing hydrogen peroxide with the anthraquinone method according to Claim 1, characterized in that the pure water inlet (1a) is arranged above the uppermost sieve plate in the extraction section (102), and close to the uppermost sieve plate in the extraction section (102).
- 4. The extraction device for producing hydrogen peroxide with the anthraquinone method according to Claim 1, characterized in that each sieve plate comprises a circular plate cooperatively arranged in the extraction section (102), a plurality of small holes used for oil phase liquid to pass are formed in each circular plate uniformly, and a plurality of downcomers used for water phase liquid to pass are arranged on the lower surface of each circular plate uniformly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021362944.0U CN213253113U (en) | 2020-07-13 | 2020-07-13 | Extraction device for producing hydrogen peroxide by anthraquinone process |
| CN202021362944.0 | 2020-07-13 |
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| AU2020102893A4 true AU2020102893A4 (en) | 2020-12-17 |
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| AU2020102893A Active AU2020102893A4 (en) | 2020-07-13 | 2020-10-20 | Extraction Device for Producing Hydrogen Peroxide with Anthraquinone Method |
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| AU (1) | AU2020102893A4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477096A (en) * | 2022-03-02 | 2022-05-13 | 潜江益和化学品有限公司 | High-efficiency extraction process in hydrogen peroxide production process |
| CN117225746A (en) * | 2023-11-14 | 2023-12-15 | 乐山市奇能米业有限责任公司 | Screening plant that rice production was used |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114522444B (en) * | 2021-12-25 | 2024-02-20 | 湖南金牛化工有限公司 | Extraction equipment for anthraquinone process hydrogen peroxide |
| CN115818579B (en) * | 2022-11-24 | 2024-03-08 | 江苏嘉宏新材料有限公司 | Extraction process for preparing hydrogen peroxide by anthraquinone method |
-
2020
- 2020-07-13 CN CN202021362944.0U patent/CN213253113U/en active Active
- 2020-10-20 AU AU2020102893A patent/AU2020102893A4/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477096A (en) * | 2022-03-02 | 2022-05-13 | 潜江益和化学品有限公司 | High-efficiency extraction process in hydrogen peroxide production process |
| CN117225746A (en) * | 2023-11-14 | 2023-12-15 | 乐山市奇能米业有限责任公司 | Screening plant that rice production was used |
| CN117225746B (en) * | 2023-11-14 | 2024-02-02 | 乐山市奇能米业有限责任公司 | Screening plant that rice production was used |
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| CN213253113U (en) | 2021-05-25 |
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