CN103014746B - Device and process for preparing liquid ferrate through electrolysis method - Google Patents
Device and process for preparing liquid ferrate through electrolysis method Download PDFInfo
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- CN103014746B CN103014746B CN201310003442.7A CN201310003442A CN103014746B CN 103014746 B CN103014746 B CN 103014746B CN 201310003442 A CN201310003442 A CN 201310003442A CN 103014746 B CN103014746 B CN 103014746B
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- electrolyzer
- ferrate
- liquid ferrate
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- alkali lye
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Abstract
The invention relates to a device for preparing liquid ferrate through an electrolysis method. The device is characterized in that an electrolyzer is a U-shaped pipe electrolyzer, an alkali liquor inlet of an alkali liquor storage tank is communicated with the alkali liquor inlet of the U-shaped pipe electrolyzer through an alkali liquor delivery pump and an alkali liquor control valve which are arranged on a pipeline, the liquid ferrate outlet of the U-shaped pipe electrolyzer is communicated with a liquid ferrate storage tank through a liquid ferrate control valve and a liquid ferrate delivery pump which are arranged on the pipeline, a side pipeline of the alkali liquor inlet of the U-shaped pipe electrolyzer is a cathode chamber, a cathode electrode is arranged in the cathode chamber of the U-shaped pipe electrolyzer, a side pipeline of the liquid ferrate outlet of the U-shaped pipe electrolyzer is an anode chamber, at least one anode electrode is arranged in an enlarged containing groove of the anode chamber of the U-shaped pipe electrolyzer, and the cathode electrode and the anode electrode are connected with a direct current power source. The device is simple in structure, economical and applicable, scientific and reasonable in technologic process, and low in operation cost, has high current efficiency and good effect, and can be widely used for interval or continuous production.
Description
Technical field
The present invention relates to electrochemical field, is that a kind of electrolytic process prepares liquid ferrate device and technique thereof.
Background technology
Ferrate is a kind of strong oxidizing property, high discharge capacity, do not cause secondary pollution " green " chemical reagent.Natural high-iron hydrochlorate exists hardly, and therefore the preparation method of ferrate and processing condition become the important topic of Recent study.The method of producing ferrate has three kinds usually, and starting material are all very stable to be easy to get.These methods mainly comprise: (1) electrochemical process, (2) high temperature drying oxidation style, (3) room temperature wet oxidation.High temperature drying oxidation style, also known as scorification, be the method finding to prepare ferrate the earliest, it refers under caustic alkali existence condition, high temperature solid-state (or melting behaviors) reaction occurs, prepares the method for ferrate.High temperature drying oxidation style severe reaction conditions, exotherm rate easily causes an explosion accident soon, easy etching apparatus.Hypochlorous acid oxidization method is also called wet oxidation, is that technological process is longer and complicated by carrying out by a certain percentage reacting obtained ferrate containing trivalent iron salt under basic conditions and hypochlorite.Electrochemical process publishes the maximum method of article in recent years.
Electrochemical process also namely electrolytic process prepare ferrate, possess starting material be easy to get, easy and simple to handle, the advantages such as obtained primary products purity is high, by product is few.Electrolysis ratio juris is in dense strong base solution, and iron anode is sacrificed oxidation and generates FeO
4 2-, and have oxygen evolution side reaction; And negative electrode has hydrogen to separate out.Concrete electrode reaction is as follows:
Anode: Fe+8OH
--6e → FeO
4 2-+ 4 H
2o
Negative electrode: 6H
2o+6e → 6 OH
-+ 3H
2
The device of electrochemical production ferrate is divided into two classes substantially: single-cell and separated electrolysis bath.Single-cell can be used for producing ferrate in the short period of time, higher in reaction starting stage efficiency, and because anode and cathode is in same container, the ferrate that after reaction for some time, anodic oxidation produces to negative electrode, and will be reduced into low price iron by fast diffusion very much.And the hydrogen and oxygen of negative and positive the two poles of the earth generation also easily causes the back-mixing of ferrate, this diffusion and back-mixing make electrolytic efficiency reduce rapidly along with time lengthening, and also because of being reduced, concentration reduces ferrate solution greatly.Although separated electrolysis bath has various types, in any case develop, its ultimate principle and basic structure do not change.Namely adopt the cation membrane that exotic materials is made, electrolyzer is divided into room, negative and positive two pole, this barrier film only allows positively charged ion to pass through, and high ferro acid group and hydroxide ion can not through barrier film in another rooms, pole.The advantage of separated electrolysis bath is separated by the anode chamber and the cathode chamber, avoids ferrate back-mixing to negative electrode generation reduction reaction, need not worry the problem of diffusion, back-mixing, and the hydrogen that anticathode produces also serves stop and guiding function.Shortcoming is that the barrier film cost of this kind of property is very high, and part ion can only be allowed after employing barrier film to pass through, and its solution conductivity is restricted, and current efficiency reduces; Barrier film is easily subject to polluting, corroding, and needs often to clean, change; And due to this barrier film be cationic membrane, the alkali lye that negative electrode produces can not be transported to anode and is used.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, current efficiency is high, economic and practical, and effective electrolytic process prepares liquid ferrate device.And providing preparation flow scientific and reasonable, running cost is low, can the electrolytic process interval of widespread use or the technique of continuous seepage liquid ferrate.
Realizing the technical scheme that the object of the invention adopts is, a kind of electrolytic process prepares liquid ferrate device, it comprises alkali lye storage tank, liquid ferrate storage tank, electrolyzer and direct supply, it is characterized in that, described electrolyzer is U-tube electrolyzer, the alkali lye transferpump of alkali liquor inlet by pipeline is arranged of described alkali lye storage tank, alkali lye control valve is communicated with the alkali liquor inlet of U-tube electrolyzer, the liquid ferrate control valve of liquid ferrate outlet by pipeline is arranged of U-tube electrolyzer, liquid ferrate transferpump is communicated with liquid ferrate storage tank, one lateral line of U-tube electrolyzer alkali liquor inlet is cathode compartment, cathode electrode is built-in with at the cathode compartment of U-tube electrolyzer, one lateral line of U-tube electrolyzer liquid ferrate outlet is anolyte compartment, receive groove in the expansion of the anolyte compartment of U-tube electrolyzer and be built-in with at least one anode electrode, described cathode electrode is connected with the negative pole of direct supply, described anode electrode is connected with the positive pole of direct supply.
A kind of electrolytic process prepares liquid ferrate technique, and it is characterized in that, it comprises the following steps, and will prepare alkali lye in alkali lye storage tank, and regulate the aperture of alkali lye control valve, alkali lye is filled with U-tube electrolyzer by alkali lye transferpump; Control electrolyte temperature at 30-35 DEG C, cathode electrode, anode electrode are connected with direct supply, the voltage-regulation of direct supply is 9V, make to be filled with alkali lye in U-tube electrolyzer through electrochemical reaction 50-70min, obtain atropurpureus liquid Na2Fe04 molten, the aperture of regulates liquid ferrate control valve, the liquid ferrate of preparation is transported in liquid ferrate storage tank by liquid ferrate transferpump.
A kind of electrolytic process of the present invention prepares liquid ferrate device, because the cathode compartment forming U-tube electrolyzer is equal with the length of pipe of anolyte compartment, diameter is than being 1:1-2, put anode electrode one lateral line at U-tube electrolyzer to be provided with expansion and to receive groove, be conducive to putting more than one anode electrode, be conducive to saving alkali lye and fully carrying out electrochemical reaction, improve the concentration of liquid ferrate, in order to current efficiency can be improved, by cathode compartment, anolyte compartment separately, and can make full use of the OH of catholyte generation again
-, the present invention does not adopt prior art cost higher, the diaphragm cell of less effective, and provides U-tube electrolyzer, not only significantly reduces making and the running cost of device, conscientiously improves current efficiency, can also make full use of the highly basic of negative electrode, in order to reduce the passivation phenomenon of anode surface, the strong base concentrations of holding anode room is within the scope of 14-16mol/L, and avoid ferrate to diffuse to negative electrode causing back-mixing, adopt the alkali lye transferpump of alkali liquor inlet by pipeline is arranged of alkali lye storage tank, alkali lye control valve is communicated with the alkali liquor inlet of U-tube electrolyzer, the liquid ferrate control valve of liquid ferrate outlet by pipeline is arranged of U-tube electrolyzer, liquid ferrate transferpump and liquid ferrate storage tank connectivity structure, by the aperture to alkali lye control valve 5-1, the aperture of liquid ferrate control valve 5-2, the control of alkali lye transferpump and liquid ferrate transferpump, complete electrochemical abundant reaction, and make liquid ferrate product transfer out in time to supplement with alkali lye, be conducive to U-tube electrolyzer and the alkali lye of cathode compartment and the new alkali lye added are supplemented to anolyte compartment, the alkali lye of cathode compartment flows to anolyte compartment with layer flow mode, can not turbulization, its structure is simple, and current efficiency is high, economic and practical, effective.Preparation flow is scientific and reasonable, and running cost is low, can the electrolytic process interval of widespread use or the technique of continuous seepage liquid ferrate.
Accompanying drawing explanation
Fig. 1 is that a kind of electrolytic process of embodiment 1 prepares liquid ferrate device;
A kind of electrolytic process of Fig. 2 embodiment 2 prepares liquid ferrate device;
A kind of electrolytic process of Fig. 3 embodiment 3 prepares liquid ferrate device.
In figure: 1-anode electrode, 2-cathode electrode, 3-direct supply, 4-1-alkali lye transferpump, 4-2-liquid ferrate transferpump, 5-1-alkali lye control valve, 5-2-liquid ferrate control valve, 6-alkali lye storage tank, 7-liquid ferrate storage tank, 8-electrolytic solution, 9-U-tube electrolyzer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
With reference to Fig. 1, a kind of electrolytic process of embodiment 1 is prepared liquid ferrate device and is applicable to the batch production of liquid ferrate.It comprises alkali lye storage tank 6, liquid ferrate storage tank 7 and direct supply 3, the alkali lye transferpump 4-1 of alkali liquor inlet by pipeline is arranged of described alkali lye storage tank 6, alkali lye control valve 5-1 is communicated with the alkali liquor inlet of U-tube electrolyzer 9, the liquid ferrate control valve 5-2 of liquid ferrate outlet by pipeline is arranged of U-tube electrolyzer 9, liquid ferrate transferpump 4-2 is communicated with liquid ferrate storage tank 7, one lateral line of U-tube electrolyzer 9 alkali liquor inlet is cathode compartment, cathode electrode 2 is built-in with at the cathode compartment of U-tube electrolyzer 9, one lateral line of U-tube electrolyzer 9 liquid ferrate outlet is anolyte compartment, receive groove in the expansion of the anolyte compartment of U-tube electrolyzer 9 and be built-in with at least one anode electrode 1, described cathode electrode 2 is connected with the negative pole of direct supply 3, described anode electrode 1 is connected with the positive pole of direct supply 3.It is rectangular parallelepiped that groove is received in the expansion of the anolyte compartment of U-tube electrolyzer 9, its length of side is 33mm, height 30mm, anolyte compartment's pipeline of U-tube electrolyzer 9 and cathode compartment pipeline are whole single u-shaped pipe, U-tube external diameter 11mm, wall thickness 2mm, U-tube overall length 160mm, electrolytic solution 8 is filled with in the U-tube of long 160mm of U-tube electrolyzer 9 and the expansion of anolyte compartment receive groove, the anolyte compartment pipeline of U-tube electrolyzer 9 inserts rectangular parallelepiped and expands and receives in groove, and the liquid ferrate outlet of U-tube electrolyzer 9 is arranged at rectangular parallelepiped and expands and receive the bottom of groove.Iron net, first through dilute hydrochloric acid cleaning, is then rolled into multi-layer cylinder shape and inserts anolyte compartment as anode electrode; Cathode electrode selects graphite rod.Preparation electrolytic solution is the NaOH solution of 14mol/L, and cathode electrode 2 is connected with the negative pole of direct supply 3, and described anode electrode 1 is connected with the positive pole of direct supply 3.
Preparation process that liquid ferrate device carries out liquid ferrate is to adopt a kind of electrolytic process of embodiment 1 to prepare: the NaOH solution adding 14mol/L in alkali lye storage tank 6, control electrolyte temperature at 30 ~ 35 DEG C, volts DS is connected to cathode electrode 2 and anode electrode 1, voltage is set to 9V, electrolysis time 50-70min, by the aperture of the aperture to alkali lye control valve 5-1, liquid ferrate control valve 5-2, the control of alkali lye transferpump 4-1 and liquid ferrate transferpump 5-2, obtains the Na of 12.42g/L
2feO
4liquid.Repeat the preparation of aforesaid liquid ferrate again.The ferrate liquid of preparation can be directly discharged into water treatment system and be used for water treatment; If be discharged into the cryogenic system containing saturated KOH solution, can purify to ferrate further.
With reference to Fig. 2, it is substantially the same manner as Example 1 that a kind of electrolytic process of embodiment 2 prepares liquid ferrate apparatus structure, the rectangular parallelepiped that difference is only the anolyte compartment of U-tube electrolyzer 9 expands that to receive the bottom of groove be cone, and a kind of electrolytic process of embodiment 2 is prepared liquid ferrate device and is applicable to the batch production of liquid ferrate.
With reference to Fig. 3, it is substantially the same manner as Example 1 that a kind of electrolytic process of embodiment 3 prepares liquid ferrate apparatus structure, and the liquid ferrate outlet that difference is only U-tube electrolyzer 9 is arranged at rectangular parallelepiped and expands and receive the top of groove.Utilize a kind of electrolytic process of embodiment 3 to prepare continuous seepage that liquid ferrate device can carry out liquid ferrate.
U-tube electrolyzer 9 can use glass, synthetic glass, plastics and other macromolecular material to make.It is that iron material makes that anode electrode 1 material can choose the main component such as pure iron silk, pure iron plate, iron powder, wire netting, ferriferous oxide, ferrosilicon, gray iron, galvanized iron, puron, iron alloy, compressing powder iron, EJ-260, soft steel, white cast iron, grey cast iron, porous magnetite, white steel mesh, low-carbon (LC) steel disc, medium carbon steel sheet, siliconized plate, High Carbon Steel Strip, stainless steel, A3 steel; Cathode electrode 2 material can be chosen the electro-conductive material such as copper wire, stainless steel, nickel plate, white steel mesh, nickel foam, graphite, platinum and make.
The specific embodiment of the present invention is also non exhaustive, and those skilled in the art, without the simple copy of creative work and improvement, should belong to the protection domain of the claims in the present invention.
Claims (1)
1. electrolytic process prepares a liquid ferrate device, and it comprises alkali lye storage tank, liquid ferrate storage tank, electrolyzer, direct supply, alkali lye transferpump, alkali lye control valve, ferrate control valve, liquid ferrate transferpump, anode electrode, cathode electrode, described cathode electrode is connected with the negative pole of direct supply, and described anode electrode is connected with the positive pole of direct supply, the alkali lye transferpump of alkali liquor inlet by pipeline is arranged of described alkali lye storage tank, alkali lye control valve is communicated with the alkali liquor inlet of electrolyzer, the liquid ferrate control valve of liquid ferrate outlet by pipeline is arranged of electrolyzer, liquid ferrate transferpump is communicated with liquid ferrate storage tank, it is characterized in that, described electrolyzer is U-tube electrolyzer, one lateral line of U-tube electrolyzer alkali liquor inlet is cathode compartment, cathode electrode is put in the cathode compartment of U-tube electrolyzer, anolyte compartment puts on a lateral line of U-tube electrolyzer liquid ferrate outlet, receives groove be built-in with at least one anode electrode in the expansion of the anolyte compartment of U-tube electrolyzer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249988A1 (en) * | 2019-06-14 | 2020-12-17 | Eötvös Loránd Tudományegyetem | Polypropylene or polyethylene based separator for use in electrochemical cells for producing alkali metal ferrates |
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| US10302552B2 (en) * | 2013-10-23 | 2019-05-28 | Hach Company | Apparatus, composition and method for determination of chemical oxidation demand |
| CN103993338B (en) * | 2014-05-09 | 2016-06-29 | 上海大学 | The electroplanting device of electro physiology experiment electrode |
| CN105274556B (en) * | 2015-11-09 | 2017-12-08 | 武汉科技大学 | A kind of oriented flow electrolysis process |
| RU2631428C1 (en) * | 2016-12-19 | 2017-09-22 | Общество с ограниченной ответственностью "Аква-Раут" | Method for electrochemical synthesis of alkali metal ferrates |
| CN108408846B (en) * | 2018-04-13 | 2020-10-09 | 深圳市深投环保科技有限公司 | Electrochemical advanced treatment method for wastewater |
| CN111547901B (en) * | 2020-05-07 | 2021-06-29 | 中南大学 | In-situ generated hydrogen peroxide and ferrate coupling water treatment deep purification device and treatment method |
| CN111733426B (en) * | 2020-07-31 | 2022-08-30 | 北京化工大学 | Method and device for electrochemically preparing ferrate based on gas diffusion electrode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389789A (en) * | 2004-01-16 | 2009-03-18 | 巴特尔纪念研究所 | Methods and apparatus for producing ferrate (vi) |
| CN102560520A (en) * | 2010-12-23 | 2012-07-11 | 楚吉胜 | Method and device for preparing potassium ferrate solid powder |
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| US20090159454A1 (en) * | 2007-12-20 | 2009-06-25 | Air Products And Chemicals, Inc. | Divided electrochemical cell and low cost high purity hydride gas production process |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389789A (en) * | 2004-01-16 | 2009-03-18 | 巴特尔纪念研究所 | Methods and apparatus for producing ferrate (vi) |
| CN102560520A (en) * | 2010-12-23 | 2012-07-11 | 楚吉胜 | Method and device for preparing potassium ferrate solid powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249988A1 (en) * | 2019-06-14 | 2020-12-17 | Eötvös Loránd Tudományegyetem | Polypropylene or polyethylene based separator for use in electrochemical cells for producing alkali metal ferrates |
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Inventor after: Sun Xuhui Inventor after: Li Ying Inventor after: Liang He Inventor after: Tuo Wanquan Inventor after: Li Wenchao Inventor after: Zheng Wenping Inventor before: Sun Xuhui Inventor before: Tuo Wanquan Inventor before: Li Wenchao Inventor before: Zheng Wenping |
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Free format text: CORRECT: INVENTOR; FROM: SUN XUHUI TUO WANQUAN LI WENCHAO ZHENG WENPING TO: SUN XUHUI LI YING LIANG HE TUO WANQUAN LI WENCHAO ZHENG WENPING |
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Granted publication date: 20150603 Termination date: 20190106 |