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Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process

A technology of hydrogen peroxide and anthraquinone method, applied in the direction of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, chemical instruments and methods, etc. The impact of materials, the influence of extraction mass transfer is not considered, and the extraction process is unfavorable for mass transfer, etc., to achieve the effect of reducing hydrogen peroxide content, saving power consumption, and reducing investment

Inactive Publication Date: 2013-01-09
上海睿思化工科技有限公司
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  • Description
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Problems solved by technology

In this patent, after the droplet touches part B of the filler, a liquid film will be formed on the surface of the filler, and the liquid film will flow upward along the filler. Since the direction of the corrugated channel has a certain angle between the vertical surface and the center line of the tower, it will cause The uneven distribution of the dispersed phase on the column section will be unfavorable to the mass transfer in the extraction process
In addition, this patent only partially considers the influence of packing arrangement direction on the liquid-liquid extraction process, and does not consider the influence of different packing forms and structures on extraction mass transfer, nor does it consider the influence of packing surface materials

Method used

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  • Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process
  • Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process
  • Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process

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Embodiment 1

[0043] combined with figure 1 And attached image 3 The technical solution of Embodiment 1 is described.

[0044] The hydrogenated liquid enters the oxidation tower 1 from the inlet 7, and the air enters the oxidation tower 1 from the inlet 8. After the reaction, it finally reaches the oxidation gas-liquid separator 3. The air enters the tail gas treatment unit from the oxidation tail gas vent 9, and the oxidation completion liquid (including hydrogen peroxide) enters the oxidation tower 1 from the oxidation exhaust port 9. The liquid inlet 10 enters the extraction tower 4. Because its density is lower than that of water, it first passes through the dispersed packing layer 6 as a dispersed phase from bottom to top, and then enters the coalescing packing layer 5. The cycle repeats, and the hydrogen peroxide in the working liquid is continuously Water extraction, finally leaves the extraction tower 4 from the raffinate phase (working liquid) outlet 12; deionized water enters th...

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Abstract

The invention relates to a novel extraction technology in the process of preparing hydrogen peroxide by anthraquinone process, characterized in that an oxidized liquid containing hydrogen peroxide directly enters into a novel combined packing extraction column through a gas-liquid separator, thus an oxidized liquid pump and an oxidized liquid storage tank in original industrial process are saved to greatly simplify the flow, the electricity consumption is saved by completely utilizing the potential energy of the oxidized liquid, and the air dissolved in the oxidized liquid is beneficial for mass transfer of the extraction process.

Description

[0001] Technical field: the present invention relates to a kind of process extraction of hydrogen peroxide produced by anthraquinone method. The oxidation liquid containing hydrogen peroxide directly enters the extraction tower from the gas-liquid separator. The extraction tower in this process is a packing tower, and the feature of the extraction tower is that it contains at least one combined packing unit, and the combined packing unit is composed of two kinds of packing materials with different functions. One is to break up the dispersed phase, and the other is to coalesce the dispersed phase droplets. technical background: [0002] Hydrogen peroxide (hydrogen peroxide) is a versatile and versatile chemical. Oxidation or reduction may occur in different cases. It can be used as oxidizing agent, bleaching agent, disinfectant, dechlorination agent, can be used as rocket fuel, and can be used to produce organic or inorganic peroxide, foam plastic and other porous substances....

Claims

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Application Information

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IPC IPC(8): C01B15/023
Inventor 崔建华
Owner 上海睿思化工科技有限公司
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