CN102862961A - Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process - Google Patents
Novel extraction technology in process of preparing hydrogen peroxide by anthraquinone process Download PDFInfo
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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
Technical field: the technique that the present invention relates to a kind of anthraquinone preparing hydrogen peroxide process extraction.The oxidation solution that contains hydrogen peroxide directly enters extraction tower from gas-liquid separator.The extraction tower of this process is packing tower, and the characteristics of this extraction tower are to contain at least a combined stuffing unit, and this combined stuffing unit is by the different media assemblages of two kinds of functions.A kind of is that disperse phase is played crushing effect, and another kind plays coalescence effect to dispersed phase drop.
Technical background:
Hydrogen peroxide (hydrogen peroxide) is a kind of chemical of multifunctional and multipurpose.In the situation that different oxygenizement or reductive action arranged.Available oxidant, SYNTHETIC OPTICAL WHITNER, sterilizing agent, dechlorinating agent can be used as rocket fuel, can be used for producing the 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 production, food product pack, health care and makeup are medium.The annual hydrogen peroxide total amount of producing of China surpasses 6,000,000 tons (27.5%), is in the world largest production and country of consumption.
The method for preparing hydrogen peroxide is a lot, but the method for at present commercial size manufacturing hydrogen peroxide mainly adopts circulation anthraquinone working solution autoxidation (AO) method.Circulation A/O method production process is: in the presence of catalyzer, under certain temperature and pressure, alkyl-anthraquinone (hereinafter to be referred as anthraquinone) and hydrogen reaction in the working fluid (organic solution that alkyl-anthraquinone and mixed organic solvents are made into by a certain percentage), generate corresponding hydrogen anthraquinone, working fluid after hydrogenation this moment is called hydride, hydrogen anthraquinone in the hydride and the reaction of the oxygen in the gas, generate original anthraquinone and hydrogen peroxide, this moment, hydride became oxidation solution, oxidation solution obtains aqueous hydrogen peroxide solution through the pure water extraction, and raffinate circulates after treatment and returns hydrogenation process.
The main chemical reactions that exists in the hydrogen peroxide obtained by anthraquinone process production process is hydrogenation and oxidizing reaction, and reaction principle is that (R is C in the reaction formula
2～C
5Alkane):
Hydrogenation:
Oxidizing reaction:
Most large-scale peroxidation hydrogen production have adopted the technique based on anthraquinone AO at present.The principle of anthraquinone autoxidation manufacturing hydrogen peroxide method is well-known, and the thirties in 20th century, US 2158525 and US 2215883 just set forth the method; Kirk-Othmer Chemical Engineering Technology encyclopedia, the 3rd edition, the 13rd volume, (1981), and the 15-22 page or leaf has also been introduced except anthraquinone, and other make the method for hydrogen peroxide.The Ullman chemical industry is complete works of, and the 5th edition, the 3rd volume, the 447-456 page or leaf has also been summarized the production hydrogen peroxide process of anthraquinone AO technique.
Solvent extraction is a kind of isolation technique that obtains developing rapidly in 20th century.Owing to high, the good separating effect of selectivity, being easy to realize the advantages such as large scale continuous prod and strong adaptability.Its range of application constantly enlarges, and not only spreads all over the industrial sectors such as oil, chemical industry, hydrometallurgy, nuclear power, medicine, and obtains using more and more widely in the high-tech such as biotechnology, novel material and field of Environment Protection.
The tower that liquid-liquid extraction separates divides step by step two kinds of contacts (such as sieve-tray tower) and differential contact (such as packing tower).Also poly-again after wherein tray column relies on plate hole that disperse phase is repeatedly disperseed, the two alternate mass transfer of carrying out when liquid liquid surface in contact is constantly updated in this process.Because disperse phase only depends on plate hole to disperse, external phase individual passage (riser pipe or downtake), so that at regular intervals between plate and the plate, thereby the Surface Renewal speed that makes its liquid is less than packing tower, thereby the sieve-tray tower flux is low than packing tower, and its mass-transfer efficiency is also lower.If gas-entrainedly in the liquid in addition will cause board-like extraction mass-transfer efficiency to descend rapidly.
Packing tower is a kind of mass transfer apparatus of being used widely in fields such as chemical industry, refining of petroleum, medicine industry and environment protection.Packing tower is made of filler, column internals and cylindrical shell.Tower packing is its core component, can be divided into structured packing and dumped packing two large classes.
Dumped packing can be divided into again the forms such as ring packing, saddle packing, ring saddle packing, Ball-type packing.The kind of structured packing is a lot, can be divided into ripple packing, grid packing, Impulse packing etc. according to its geometry, can also be divided into according to the structure of material protruded corrugated sheet packing, screen waviness packings, Mellapak packing and net corrugated filling etc.
The even structure of structured packing, rule, symmetry, when having identical specific surface area with dumped packing, the voidage of filler is larger, has larger flux, the ratio load of structured packing extraction tower generally is 1.5～2.0 times of dumped packed column, and comprehensive treatment capability is more much bigger than tray column and dumped packing tower.Pressure drop is low because structured packing has, flux is large, the separation efficiency advantages of higher, is used widely in numerous towers of fine chemistry industry, perfume industry, oil refining, chemical fertilizer, field of petrochemical industry.
Although packed extraction tower usually uses the filler similar to mass-transfer progress, extraction process has obvious difference to the requirement of filler and rectifying and absorption process.Stevens once pointed out: in the gas-to-liquid contact process, liquid phase is along the surface flow of filler, and the wetted surface-area of the interface, phase border of mass transfer process and filler is relevant.Thereby design selects surface-area greatly and easily by the wetting filler of liquid phase in mass-transfer progress.Yet in Liquid-liquid Extraction Processes, it is wetting that filler is preferably external phase institute usually, and disperse phase rises or descends with the drop group's of separation form.In Liquid-liquid Extraction Processes, the effect of filler be reduce external phase serious convection current or axial backmixing and pulverizing that surface-area promotes disperse phase is provided and polymerization with reinforcing mass transfer.Like this, although the high filler of specific surface area is usually useful, and unlike the gas-to-liquid contact process, play conclusive effect [1].Therefore, it is unsatisfactory that general filler is used for liquid-liquid extraction process effect.
[1]Stevens?G.W.，Chap.8，in“Liquid-Liquid?Extraction?Equipment”，Ed.by?Godfrey?J.C.，Slater?M.J.，Wiley，New?York，1994.
Be applied at present the structured packing of extraction process, domestic have the structured packing of VKB type, FG type grid packing, HS-1 type hump sieve-plate filler, a rack structured packing.External have Mellapak, SMV, SMVP, Norton 2T structured packing, a structured packing of Optiflow hyperchannel etc.
In Liquid-liquid Extraction Processes, improve dispersed phase drop coalescent-broken frequency, strengthen the Surface Renewal speed of dispersed phase drop, strengthen the fluid interface less turbulence, and can provide larger alternate contact area after disperse phase is broken for less drop, favourable to improving mass-transfer efficiency.
Adopt liquid-liquid diphase in the small size long-channel of plate wing and stream contact (CN101631743A), this passage capable of being provides high surface/volume, makes two mutually mixed well, has strengthened two alternate mass transfers.Two-phase is carried out layering behind the passage of process, enters respectively another grade continuation extraction.The sectional dimension of this passage is less than 3mm, and the wing plate is arranged in the passage, so its complex structure, and difficulty of processing is large, and cost is high, the difficult realization in Large Scale Industrial Process.In addition, this technique two-phase is adverse current on the whole, but specific in every one-level being and stream, flow process is complicated, not at the same level between fluid need to carry.Use composite type fillers unit (CN101073713A), filler unit is divided into totally 3 layers of A, B, C from the bottom to top.A is comprised of 2 above ripple net sheets, and adjacent ripple net sheet wavy channel direction is 90 ° of staggered stacks mutually, and the wavy channel direction is vertical with the medullary ray of tower; B is comprised of 2 above ripple net sheets, and adjacent ripple net sheet wavy channel direction is 15 °～90 ° staggered stacks mutually, and the wavy channel direction on vertical plane with 15 °～75 ° of the medullary rays of tower; C forms with the upper sheet space ripple by 2, and adjacent plate ripple is separated by ripple net sheet, and the wavy channel direction is 15 °～90 ° staggered stacks mutually, and the wavy channel direction is parallel with the medullary ray of tower.A plays the cutting and crushing effect to drop; B plays coalescence effect to small droplets; C is to rising booster action on the drop.So fragmentation of realization drop-gather also-accelerate-broken again.In this patent, after the drop contact filler B part, can form liquid film at filling surface, liquid film can upwards flow along filler, because the wavy channel direction has certain angle with the medullary ray of tower on vertical plane, can cause disperse phase skewness on tower section, will be unfavorable to the extraction process mass transfer.In addition this patent only the part considered the impact of filler arranged direction on Liquid-liquid Extraction Processes, do not consider different form of bio-carrier and structure to the extraction mass transport affects, do not consider the impact of filling surface material yet.
Because in Liquid-liquid Extraction Processes, it is wetting that filler is preferably external phase institute usually, disperse phase rises or descends with the drop group's of separation form, and the effect of filler is that reduction external phase serious convection current or axial backmixing and the dispersion that surface-area promotion disperse phase is provided-coalescent-redispersion circulate with reinforcing mass transfer.Therefore, filling surface is good to the disperse phase wettability, will strengthen it to the disperse phase crushing effect.
Coalescence technology is a kind of physico-chemical process of separating oil and water, and the object of coalescent processing mainly is dispersed oil and the stable oil in water emulsion of nonsurfactant in the water, or the water that disperses in the oil phase.Coalescent method claims again coalescence, is the general name of coarse and corresponding settling process.This method is the characteristic of utilizing oil, water two relative coalescence material avidity to differ greatly, liquid particle is stranded in by material capture and forms liquid film in material surface and the space, when liquid film increased to certain thickness, liquid film came off to merge and is agglomerated into larger liquid grain under the effects such as waterpower and buoyancy.The disperse phase liquid pearl that coalescent rear particle diameter is larger then is easy to from water separated.Common coalescence material has random packing (such as plastic grains such as glass sphere, Ceramic Balls, polypropylene, annular packing), plate-like fillers (flap, arc, waved plate, ripple net etc.), wire packing, perforated foams filler and other are made random by fiber or the rule filler are arranged.
Summary of the invention:
At present, after domestic (outward) oxidation solution all passes through first gas-liquid separator and air separation, enter atmospheric pressure oxidation liquid storage tank, will be dissolved in the oxidation solution Air and discharge, then after the pressurization of oxidation liquid pump, enter perforated-plate extraction tower.The oxidation solution storage tank has increased the oxidation solution amount retained, and the oxidation liquid pump has increased the power consumption of this process.
The technical process and the equipment that the purpose of this invention is to provide a kind of anthraquinone preparing hydrogen peroxide process extraction are to overcome the problem of existing technique.The present invention has saved oxidation solution basin and oxidation solution transferpump in the present technique, has simplified technical process; The potential energy that takes full advantage of oxidation solution has been saved power consumption; The filler of the extraction tower of this process adopts surface and the wetting good filler of working fluid as breakup of drop filler, and use coalescent packs different from broken filling-material structure replace with it, realized the circulation that the fragmentation-polymerization of disperse phase-again is broken, when improving extraction tower outlet concentration of hydrogen peroxide, content of hydrogen peroxide also greatly reduces in the raffinate; Be dissolved in gas in the oxidation solution, along with the oxidation solution pressure drop will discharge, these gases form bubble in extraction tower, and the bubble of rising plays a driving role to the packed extraction tower mass transfer.
The present invention is achieved by the following technical solutions:
An anthraquinone preparing hydrogen peroxide extraction new technological process, the oxidation solution that namely contains hydrogen peroxide directly enters extraction tower from the gas-liquid separator liquid exit, and employed extraction tower contains efficient combined stuffing unit.This combined stuffing unit is by unlike material, and perhaps different shapes is perhaps multi-form, perhaps the filler combination of different size forms, wherein a part of filler plays crushing effect to disperse phase, and another part filler plays coalescence effect to dispersed phase drop, the filler alternative arrangement of two kinds of effects.Oxidation solution is subjected to buoyancy in extraction tower, from bottom to top, successively repeatedly broken filler and coalescent pack realized the circulation that the fragmentation of disperse phase-coalescent-again is broken.Enter the water of extraction tower from the upper end as external phase, flow from top to bottom by gravity, with the oxidation solution counter current contact.
And oxidation solution is subjected to buoyancy from bottom to top in perforated-plate extraction tower, is tackled by multi-layer porous sieve plate, and is coalescent under sieve plate, then passes sieve aperture and is dispersed into small droplets, with the broken circulation of fragmentation-polymerization of realizing disperse phase-again.Enter the water of extraction tower from the upper end as external phase, flow by downtake on the column plate from top to bottom by gravity, between sieve plate, contact with oxidation solution cross-flow stream.
In the above-mentioned packed extraction tower disperse phase is played the crushing effect filler, can select protruded corrugated sheet packing, expanded metals ripple or screen waviness, regular honeycomb filler, grid packing.
Dispersed phase drop is played coalescence effect filler unit unit pall ring, Raschig ring, the random packings such as saddle ring, perhaps perforated foams, perhaps other is made random by fiber or rule filler etc. is arranged.(such as the plastic grains such as glass sphere, Ceramic Balls, polypropylene, annular packing), plate-like fillers (flap, arc, waved plate etc.) are twined and the tiling wire packing, and perforated foams filler and other are made random by fiber or the rule filler is arranged.
Described filler can be for its Facing material the metallic substance such as carbon steel, stainless steel, Hastelloy, titanium, zirconium, also can be the inorganic ceramic materials such as aluminum oxide, zirconium white, silicon carbide, also can be poly-hydro carbons (such as polypropylene etc.), poly-hydrochlorofluorocar,ons [such as fluorinated ethylene propylene (ETFE), polyvinylidene difluoride (PVDF) (PVDF) etc.], polyester, polyvinyl chloride, the organic materialss such as Resins, epoxy, perfluoroalkoxy class and polyurethanes.Selection principle is the consistency of (1) and system system, the wettability of (2) and system disperse phase system.
The aforesaid combination filler unit can use separately, also can be used as other textural associations such as the part of column internals and sieve plate and uses.
Beneficial effect:
1. the present invention has saved oxidation liquid pump and oxidation solution basin in the present industrial flow, and flow process is simplified greatly; Reduce the potential energy that investment takes full advantage of oxidation solution and saved power consumption.
2. adopt novel combined stuffing extraction tower, broken filler uses and the coalescent pack alternate combinations, realized the circulation that the fragmentation-polymerization of disperse phase-again is broken, when improving extraction tower outlet concentration of hydrogen peroxide, content of hydrogen peroxide also greatly reduces in the raffinate.
3. utilize to be dissolved in air release formation bubble in the oxidation solution, the packed extraction tower mass transfer is played a driving role.
Following instance only for the implementation result of explanation this patent, is not limited to this.
Description of drawings:
Describe the present invention in detail below in conjunction with accompanying drawing and specific implementation method;
Extraction procedure and extraction tower structural representation that accompanying drawing 1 the present invention adopts.
Accompanying drawing 2 existing extraction procedure.
Accompanying drawing 3 liquid are flow condition schematic diagram (sphere is the oxidation solution drop) in packed extraction tower.
Accompanying drawing 4 liquid are flow condition schematic diagram (sphere is the oxidation solution drop) in sieve-tray tower.
Specific implementation method:
Embodiment one
By reference to the accompanying drawings 1 and the technical scheme of 3 couples of embodiment one of accompanying drawing describe.
Hydride is from import 7, air enters oxidizing tower 1 from import 8, through the final oxic gas liquid/gas separator 3 that arrives after the reaction, air enters tail gas treating unit from oxidized tail gas drain 9, oxidation is finished liquid (containing hydrogen peroxide) and is entered extraction tower 4 from oxidation solution import 10, because its density is less than water, it passes through first from bottom to top as disperse phase and disperses packing layer 6, then enter coalescent pack layer 5, so circulation repeatedly, hydrogen peroxide in the working fluid is constantly extracted by water, finally leaves extraction tower 4 from extracting phase (working fluid) outlet 12; Deionized water enters extraction tower 4 from purified water inlet 11, and it flows and the oxidation solution counter current contact from top to bottom as external phase, and wherein content of hydrogen peroxide constantly increases, and finally leaves extraction tower 4 from hydrogen peroxide outlet 13.
Processing condition: oxidation solution flow 500m
3/ h, content of hydrogen peroxide 6g/L in the oxidation solution, extraction tower diameter 3.5m, the flow 7.7m of water
3/ h.Export 13 place's concentration of hydrogen peroxide 35%, export 12 place's extracting phases and contain hydrogen peroxidase 10 .05g/L.
Comparative Examples one
Flow process is seen accompanying drawing 2, hydride is from import 7, air enters oxidizing tower 1 from import 8, through the final oxic gas liquid/gas separator 3 that arrives after the reaction, air enters tail gas treating unit from oxidized tail gas drain 9, oxidation is finished liquid (containing hydrogen peroxide) and is introduced into oxidation solution basin 14, after 15 superchargings of oxidation liquid pump, enter extraction tower 4 from oxidation solution import 10, because its density is less than water, it passes through multiple sieve plate 16 fragmentations from bottom to top as disperse phase, and the hydrogen peroxide in the working fluid is constantly extracted by water, finally leaves extraction tower 4 from extracting phase (working fluid) outlet 12; Deionized water enters extraction tower 4 from purified water inlet 11, and it flows (seeing accompanying drawing 4) along the downtake on the sieve plate 16 from top to bottom as external phase, and wherein content of hydrogen peroxide constantly increases, and finally leaves extraction tower 4 from hydrogen peroxide outlet 13.
Processing condition: oxidation solution flow 500m
3/ h, content of hydrogen peroxide 6g/L in the oxidation solution, extraction tower diameter 3.5m, the flow 8.6m of water
3/ h.Wherein the power of oxidation liquid pump 15 is 55KWh, the solvent 50m of oxidation solution basin 14
3Export 13 place's concentration of hydrogen peroxide 30%, export and contain hydrogen peroxidase 10 .28g/L (upper safety limit is 0.30g/L) in 12 place's extracting phases.
Can find out by above-mentioned contrast, extracting process of the present invention has obtained the product concentration of hydrogen peroxide of obvious raising, and has significantly reduced concentration of hydrogen peroxide in the extracting phase, far below upper safety limit, has reduced potential safety hazard.
Claims (8)
1. the extraction process of an anthraquinone preparing hydrogen peroxide is characterized in that, the oxidation solution that contains hydrogen peroxide extracts from directly entering extraction tower after the outlet of oxic gas liquid/gas separator is flowed out, and extraction tower is packing tower.
2. method claimed in claim 1, oxidation solution without any equipment for liquid transportation, directly enters extraction tower by self pressure (gauge pressure is 0.2MPa approximately) and potential difference.
3. method claimed in claim 1, wherein in the extraction tower as disperse phase (oxidation solution) from bottom to top and external phase (water) counter-current flow.
4. method claimed in claim 1, employed filler is efficient combined stuffing unit in its packing tower, and this combined stuffing unit is by the different media assemblages of two kinds of functions, and a kind of is that disperse phase is played crushing effect, another kind of dispersed phase drop is played coalescence effect.
5. method claimed in claim 4, its combined stuffing unit is by unlike material, different shapes and form, the filler combination of different size, each layer thickness is impartial or different.
6. method claimed in claim 4 is protruded corrugated sheet packing, corrugated sheet-net packing, screen waviness packings, regular grid packing or regular honeycomb type filler to the filler that disperse phase plays crushing effect wherein.
7. method claimed in claim 4 wherein plays the filler of coalescence effect to dispersed phase drop, for ring packing, saddle packing, ring saddle packing, Ball-type packing, wire packing, perforated foams filler and other by make random of fiber or the rule filler is arranged.
8. method claimed in claim 4, wherein filler has with the consistency of system system with the disperse phase system preferably wettability is arranged, the Facing material of filler is metallic substance, organic materials, and metallic substance comprises carbon steel, stainless steel, Hastelloy, titanium or aluminium; Also can be the inorganic ceramic materials such as aluminum oxide, zirconium white, silicon carbide; Organic materials comprises poly-hydro carbons, poly-hydrochlorofluorocar,ons, polyester, polyvinyl chloride, Resins, epoxy, perfluoroalkoxy class and polyurethanes.The preferred order of the Facing material of filler is: organic materials＞inorganic ceramic material＞metallic substance.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145103A (en) * | 2013-03-21 | 2013-06-12 | 天津大学 | Novel circulation flow extraction section device for preparing oxydol through anthraquinone method |
| CN103145102A (en) * | 2013-03-11 | 2013-06-12 | 上海睿思化工科技有限公司 | Method of removing organic impurities in hydrogen peroxide |
| CN103708426A (en) * | 2014-01-08 | 2014-04-09 | 石祖嘉 | Device for producing hydrogen peroxide by adopting anthraquinone process |
| CN103803501A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Oxidation method for producing hydrogen peroxide by anthraquinone method |
| CN104317317A (en) * | 2014-09-25 | 2015-01-28 | 中国石油化工股份有限公司 | Method for controlling the content of hydrogen peroxide in working solution for technology of preparing hydrogen peroxide by anthraquinone process |
| CN105731385A (en) * | 2016-03-29 | 2016-07-06 | 福建永荣科技有限公司 | Hydrogen peroxide oxidization extracting tower and method |
| CN109626337A (en) * | 2019-01-28 | 2019-04-16 | 安徽晋煤中能化工股份有限公司 | A kind of suspension bed hydrogen peroxide extraction device |
| CN109678119A (en) * | 2017-10-19 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of hydrogen dioxide solution production by anthraquinone process system and hydrogen dioxide solution production by anthraquinone process method |
| WO2023284028A1 (en) * | 2021-07-16 | 2023-01-19 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced oxidation system and oxidation method for preparing hydrogen peroxide |
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| CN1721320A (en) * | 2002-09-03 | 2006-01-18 | 中国石油化工股份有限公司巴陵分公司 | Oxidation process for preparing hydrogen peroxide |
| CN101073713A (en) * | 2007-04-10 | 2007-11-21 | 天津大学 | Composite filler tower for extracting oil-water system |
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|---|---|---|---|---|
| CN103803501B (en) * | 2012-11-07 | 2016-01-20 | 中国石油化工股份有限公司 | A kind of method for oxidation of hydrogen dioxide solution production by anthraquinone process |
| CN103803501A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Oxidation method for producing hydrogen peroxide by anthraquinone method |
| CN103145102A (en) * | 2013-03-11 | 2013-06-12 | 上海睿思化工科技有限公司 | Method of removing organic impurities in hydrogen peroxide |
| CN103145103A (en) * | 2013-03-21 | 2013-06-12 | 天津大学 | Novel circulation flow extraction section device for preparing oxydol through anthraquinone method |
| CN103145103B (en) * | 2013-03-21 | 2015-01-14 | 天津大学 | Novel circulation flow extraction section device for preparing oxydol through anthraquinone method |
| CN103708426B (en) * | 2014-01-08 | 2015-07-29 | 石祖嘉 | Anthraquinone oxydol production apparatus |
| CN103708426A (en) * | 2014-01-08 | 2014-04-09 | 石祖嘉 | Device for producing hydrogen peroxide by adopting anthraquinone process |
| CN104317317A (en) * | 2014-09-25 | 2015-01-28 | 中国石油化工股份有限公司 | Method for controlling the content of hydrogen peroxide in working solution for technology of preparing hydrogen peroxide by anthraquinone process |
| CN105731385A (en) * | 2016-03-29 | 2016-07-06 | 福建永荣科技有限公司 | Hydrogen peroxide oxidization extracting tower and method |
| CN109678119A (en) * | 2017-10-19 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of hydrogen dioxide solution production by anthraquinone process system and hydrogen dioxide solution production by anthraquinone process method |
| CN109678119B (en) * | 2017-10-19 | 2020-08-04 | 中国石油化工股份有限公司 | Water hydrogen peroxide production system by anthraquinone method and hydrogen peroxide production method by anthraquinone method |
| CN109626337A (en) * | 2019-01-28 | 2019-04-16 | 安徽晋煤中能化工股份有限公司 | A kind of suspension bed hydrogen peroxide extraction device |
| WO2023284028A1 (en) * | 2021-07-16 | 2023-01-19 | 南京延长反应技术研究院有限公司 | Micro-interface enhanced oxidation system and oxidation method for preparing hydrogen peroxide |
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Application publication date: 20130109 |