CN106222690A - A kind of three film four Room aqueous solution plate and frame electrolysis bath and application thereof - Google Patents
A kind of three film four Room aqueous solution plate and frame electrolysis bath and application thereof Download PDFInfo
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- CN106222690A CN106222690A CN201610717310.4A CN201610717310A CN106222690A CN 106222690 A CN106222690 A CN 106222690A CN 201610717310 A CN201610717310 A CN 201610717310A CN 106222690 A CN106222690 A CN 106222690A
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- room
- acid
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 101
- 239000007864 aqueous solution Substances 0.000 title claims abstract description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000002253 acid Substances 0.000 claims abstract description 51
- 150000003839 salts Chemical class 0.000 claims abstract description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 239000000243 solution Substances 0.000 claims abstract description 38
- 239000003792 electrolyte Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 10
- 229940055042 chromic sulfate Drugs 0.000 claims abstract description 9
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 claims abstract description 9
- 229910000356 chromium(III) sulfate Inorganic materials 0.000 claims abstract description 9
- 239000011696 chromium(III) sulphate Substances 0.000 claims abstract description 9
- 235000015217 chromium(III) sulphate Nutrition 0.000 claims abstract description 9
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 9
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 9
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims abstract description 7
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical class C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims abstract description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 125000000129 anionic group Chemical group 0.000 claims abstract description 5
- 125000002091 cationic group Chemical group 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000741 silica gel Substances 0.000 claims description 22
- 229910002027 silica gel Inorganic materials 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 17
- 239000003077 lignite Substances 0.000 claims description 16
- 239000001993 wax Substances 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 10
- 239000011591 potassium Substances 0.000 claims description 10
- 229910052700 potassium Inorganic materials 0.000 claims description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000005341 cation exchange Methods 0.000 claims description 6
- 238000000502 dialysis Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 238000005349 anion exchange Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000004061 bleaching Methods 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical group [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000012187 peat wax Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229950000845 politef Drugs 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 claims description 2
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 25
- 239000011651 chromium Substances 0.000 description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 17
- 229960001866 silicon dioxide Drugs 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 8
- 210000004027 cell Anatomy 0.000 description 6
- 239000001117 sulphuric acid Substances 0.000 description 6
- 235000011149 sulphuric acid Nutrition 0.000 description 6
- 230000000813 microbial effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229940095100 fulvic acid Drugs 0.000 description 2
- 239000002509 fulvic acid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000011403 purification operation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002962 histologic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
- C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
A kind of three film four Room aqueous solution plate and frame electrolysis bath and application thereof, belong to electrochemical industry field.The problem that the present invention is to solve the recycling of chromate waste water, and improve electrolysis bath space-time yield and make electric energy be fully used.Electrolysis bath includes cathode chamber, salt room, acid room and the anode chamber setting gradually and linking together, and is respectively equipped with a cationic membrane between cathode room, salt room and between acid room and anode chamber；It is provided with an anionic membrane between salt room and acid room.Anode chamber is contained within the sulfuric acid solution of chromic sulfate, and acid is indoor containing sulfuric acid solution, and sodium sulfate or potassium sulfate solution are contained in salt indoor, and cathode chamber is contained within sodium hydroxide or potassium hydroxide solution；Each room electrolyte flow mode is bottom in and top out, by supporting corrosion-resistant circulating pump forced circulation.Utilizing the present invention, anodic current efficiency to reach 65～75%, cathode efficiency reaches 80～90%, and total current efficiency 145～165%, electrolysis bath space-time yield is greatly improved.
Description
Technical field
The present invention relates to a kind of electrolysis bath and application thereof, belong to electrochemical industry field.
Background technology
Chromium is one of five big heavy metals, it is easy to enter human body cell, to devices such as skin, gastrointestinal tract, eyes, ear Liver and kidney
Official and histologic lesion are very big, and in human body, accumulation has carcinogenecity, teratogenecity, mutagenicity." chromium capsule " and " the chromium dirt in this year
Dye " event emerges in an endless stream, is not only detrimental to health, and also results in the severe contamination of natural environment.At present, in production process
The processing method of the high concentration chrome wastewater produced mainly has chemical method, microbial method, ion exchange, absorption method, electrolysis etc..
The principle of chemical method is in acid condition, adds the reducing agents such as ferrous sulfate, Cr (VI) is reduced to Cr (III)
Precipitation.The shortcoming of chemical method is the most relatively costly, and solid waste is blamed to process, and there is also Cr (III) in microorganism
Under effect, again it is changed into Cr (VI), causes secondary pollution.Microbial method utilizes the metabolism of microbial cell to be changed by Cr (VI)
For Cr (III), and accumulate in a large number in microbial cell.Although microbial method relatively chemical method low cost, but still the most effective
Reduce chromium element total amount in environment.Ion exchange processing waste water containing chrome, can be good with efficient recovery chromium element, effluent quality.But
Ion exchange resin easily contaminated oxidation, the life-span is the longest, and processing cost is higher.Activated carbon adsorption processing waste water containing chrome has into
This is low, easy and simple to handle, treatment effeciency advantages of higher, but is not carried out the recycling of chromium.Electrochemical process processes high concentration chrome wastewater
It is easier to realize the recycling of chromium resource, but still exists and consume the problems such as electric energy is more.
In lignite wax bleaching oxide purification produces, alternative oxidant has chromic acid, potassium permanganate, sodium chlorate, height
Sodium chlorate, ozone, hydrogen peroxide-peracetic acid etc..Although Chrome-free oxidant is environmentally friendly cheap, but its bleached refined effect
The degree of recognition of fruit and user is nothing like chromic acid.Therefore, chromic acid is can not as the oxidant in lignite wax oxide purification technique
Substitute.Chromic acid oxidation bleaching refines and can produce the chrome waste liquid being difficult to effectively process in a large number, environment in lignite wax production process
Seriously polluted.At the electrolytic recovery of lignite wax, deresination lignite wax, peat wax or deresination peat wax oxidative decoloration chrome waste liquid
Reason method (CN102776525A) discloses a kind of method of trivalent chromium electrolytic regeneration, but the most effectively utilizes negative electrode in its method
Electrode, current efficiency only has 65%-75%, and electric energy is not efficiently used.A kind of based on anion and cation exchange membrane and Bipolar Membrane
Three film four Room constituted are produced alkali electrolysis bath (CN102304723A) without chlorine and are disclosed a kind of method producing alkali without chlorine, and its method makes letter
Single complication, is completely unnecessary employing three film four Room cell constructions, it is only necessary to use three Room two membrane electrolysis cells the most permissible
Sulphuric acid and Caustic soda is obtained in once electrolytic.Shen Yuanben " summary electrolysis Natrii Sulfas Caustic soda and sulphuric acid " utilizes three Room two film electrolysis
Groove electrolysis sulphuric acid has successfully prepared sulphuric acid and Caustic soda.Therefore saying, it is the highest to there is space-time yield in prior art, and current efficiency is low, electricity
The problems such as insufficient can be utilized.
Summary of the invention
It is an object of the invention to provide a kind of three film four Room aqueous solution plate and frame electrolysis baths being applicable to chrome waste liquid regeneration
And application, to solve the problem of the recycling of the chromate waste water in above-mentioned background technology, and improve electrolysis bath space-time
Productivity makes electric energy be fully used.
The present invention solves that above-mentioned technical problem adopts the technical scheme that:
A kind of three film four Room aqueous solution plate and frame electrolysis baths, described electrolysis bath includes the moon setting gradually and linking together
Room, pole, salt room, acid room and anode chamber, be respectively equipped with a cation between cathode room, salt room and between acid room and anode chamber
Film；It is provided with an anionic membrane between salt room and acid room.
Described electrolysis bath is rectangular structure, and it also includes two electrolysis bath end plates, cathode chamber, salt room, acid room and anode
Room is placed between two electrolysis bath end plates, and two electrolysis bath end plates are fastened by the connector through insulation processing through four
Link together.
Described cathode chamber includes cathode chamber electrolysis bath deckle board, cathode electrode and the cathode chamber silica gel pad being attached onto,
It is respectively equipped with electrolysis bath deckle board and cathode electrode between adjacent two tank house silica gel pads；
Described salt room includes salt room electrolysis bath deckle board and two groups of plates, the two ends of salt room electrolysis bath deckle board being attached onto
Being respectively provided with one group of plate at face, often group plate includes salt room silica gel pad and the salt room PP plastics between the silica gel pad of salt room
Mesh protection board；
Described acid room includes sour room electrolysis bath deckle board and two groups of plates, the two ends of acid room electrolysis bath deckle board being attached onto
Be respectively provided with one group of plate at face, with one group of plate of salt room sides adjacent include acid room silica gel pad and be positioned at sour room silica gel pad it
Between sour room PP plastic mesh plate protection board；Another group plate includes acid room silica gel pad and acid room PP plastic mesh plate protection board, and
Acid room silica gel pad attaches with acid room electrolysis bath deckle board respective end end face；
Described anode chamber includes anode chamber's electrolysis bath deckle board, anode electrode and three the anode chamber's silicagel pad being attached onto
Sheet, is respectively equipped with anode chamber's electrolysis bath deckle board and anode electrode between the silica gel pad of adjacent anode room；
Cathode electrode is connected with negative pole and the positive pole of DC source respectively with anode electrode.
The cathode electrode of described cathode chamber is near salt room, and the anode electrode of described anode chamber is near acid room.
The material of two electrolysis bath end plates is polypropylene or politef.
Described cationic membrane is perfluorinated sulfonic acid cation exchange membrane, and described anionic membrane is homogeneous-phase anion exchange film；Institute
Stating cathode electrode is netted Ti cathode electrode, and described anode electrode is netted ti-lead dioxide anode electrode.
Anode chamber is contained within the sulfuric acid solution of chromic sulfate, and acid is indoor containing sulfuric acid solution, and sodium sulfate or sulfur are contained in salt indoor
Acid potassium solution, cathode chamber is contained within sodium hydroxide or potassium hydroxide solution；Each room electrolyte flow mode is bottom in and top out, by
Supporting corrosion-resistant circulating pump forced circulation.
The present invention also provides for the application of a kind of three film four Room aqueous solution plate and frame electrolysis baths, and electrolytic condition is: anode chamber is
Containing after 0.6～0.8mol/L chromic sulfate and the sulfuric acid solution of 0.1～1.0mol/L or oxide purification containing Cr3+And Cr2O7 2-
Sulfuric acid solution；
Acid room is the sulfuric acid solution of 0.5-1.0mol/L；
Salt room is metabisulfite solution or the potassium sulfate solution of 0.5～1.0mol/L；
Cathode chamber is sodium hydroxide or the potassium hydroxide solution of 0.2～0.6mol/L.
Electrolysis temperature is 50 DEG C～70 DEG C, and electric current density is 900～1200A/m2, electrolysis time is batch (-type) or continuous
Formula, accumulative electrolysis time is between 7～10 hours.
After reaching electrolysis time, anode chamber's electrolyte is through decompression distillation and concentration and adjusts acidity for the de-tree of oxide purification
Fat lignite wax or deresination peat wax, after oxidation waste liquid removes petroleum tailings and organic molecule impurity, regulate acidity, contained
0.6～0.8mol/L chromic sulfate and the sulfuric acid oxidation filtrate of 0.1～1.0mol/L, return electrolyzer anode chamber's electrolytic regeneration；Acid
Room obtains containing Cr3+A sulfuric acid solution part through diffusion dialysis, reclaim acid and refine pickling section for lignite wax oxidation bleaching,
Diffusion dialysis residual liquid merges with oxidation filtrate, and a part continues to be electrolysed as electrolyte through dilution；Salt room obtains diluter
Sodium sulfate or potassium sulfate solution, supplement moderate amount of sulfuric acid sodium or potassium sulfate, return to electrolysis bath salt room and be electrolysed；Cathode chamber
Electrolyte is through purifying, directly as sodium humate, potassium humate, sodium fulvate, the raw material of potassium fulvate production.
The invention has the beneficial effects as follows:
The cell construction related in the present invention is simple, easy to use, and stable performance is hardly damaged, and applicable elements is extensive.
The lignite wax oxide purification process route set up in conjunction with the electrolysis bath of the present invention, space-time yield is greatly improved, and current efficiency is high, electricity
Can utilize fully, clean environment firendly, automaticity is high, easy and simple to handle.
Use electrolysis bath and the electrolysis process of present invention structure, anode and negative electrode can be made full use of, raw at once electrolytic
Product obtains sodium hydroxide or potassium hydroxide solution, sulfuric acid solution and the sulfur containing Cr2O72-from negative electrode, acid room and anode respectively
Acid solution, anodic current efficiency 65～75%, cathode efficiency 80～90%, total current efficiency 145～165%, electrolysis bath
Space-time yield is greatly improved, and electric energy is fully used.Effectively solving the recycling of chromate waste water, environmental risk is little.
Accompanying drawing explanation
Fig. 1 is this structural representation vertical of electrolysis bath of the present invention, and Fig. 2 is the front view (electrolysis bath in the present invention of Fig. 1
Structural representation), Fig. 3 is the left view (giving electrolysis bath eight 304 CARBURIZING FURNACE FOR STAINLESS FASTENER positions in figure) of Fig. 1, and Fig. 4 is negative electrode
The left view (18 in figure are the through hole passed for connector) of the electrolysis bath deckle board in room, salt room, acid room and anode chamber；Figure
5 is electrolysis process flow chart of the present invention, and Fig. 6 is to utilize the electrolytic regeneration liquid oxidation of the present invention to refine lignite wax outdoor scene photo (in fact
Thing photo), Fig. 7 is for utilizing oxide purification lignite wax gas chromatogram (chemical analysis figure) of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Conjunction is specifically illustrating, and is described in further detail the present invention below by embodiment.
Embodiment 1
The installation of (a) electrolysis bath: see Fig. 1 to 4, the structural representation of a kind of three film four Room aqueous solution plate and frame electrolysis baths
Figure, by electrolysis bath end plate, silica gel pad, electrolysis bath deckle board, netted Ti cathode electrode, netted ti-lead dioxide anode electrode,
Cationic membrane, anionic membrane, PP plastic mesh plate protection board assembles the most in order, and with eight through the 304 of insulation processing
CARBURIZING FURNACE FOR STAINLESS FASTENER fastens, fixing.Through static and pressurization leak test, electrolysis bath No leakage.Through earth detection, electrolysis bath is without electric leakage
Phenomenon.
Wherein, electrolytic cell body material is polypropylene or politef, and electrolytic cell body uses polypropylene to great majority
Chemical reagent is stable, is disposed with perfluorinated sulfonic acid cation exchange membrane, homogeneous-phase anion exchange film, complete between anode and negative electrode
Fluosulfonic acid cation exchange membrane, is thus divided into anode chamber, acid room, salt room, cathode chamber by electrolysis bath.Charged particle is made at electric field
By lower displacement or generation oxidation reaction.PP plastic mesh plate protection board respectively with two perfluorinated sulfonic acid cation exchange membranes and
Open homogeneous-phase anion exchange film the most adjacent；Silica gel plate pad is had, by eight 304 stainless through insulation processing between each cell body
Steel fastened by screw, fixing, it is ensured that No leakage, through earth detection, electrolysis bath is without leaky；
B () electrolysis processes: the anolyte that 100L contains 0.6235mol/L chromic sulfate and 0.5mol/L sulphuric acid injects
Anode chamber, injects 100L0.5mol/L sulfuric acid solution acid room, the metabisulfite solution of 100L1.0mol/L is injected salt room, will
100L0.4mol/L sodium hydroxide solution injects cathode chamber, adds constant-current dc electricity at three electrolysis bath the two poles of the earth, film four Room and is electrolysed,
Control electric current density is 900A/m2, in electrolytic process, each tank house electrolyte is forced with supporting corrosion-resistant circulating pump respectively
Circulation, controls each tank house flow rate of liquid and is 25L/min, heat electrolyte, and control electrolyte in circulating slot
Temperature is maintained at 55 ± 2 DEG C；Electrolysis 7 hours with this understanding, respectively to electrolyte Cr (VI) concentration, the electrolysis of acid room in anode chamber
Molten sulfur acid concentration, cathode chamber naoh concentration are analyzed.When reaching electrolysis time, stop electrolysis, close electrolysis bath constant current
DC source, obtains electrolytic oxidation liquid from anode, and acid room obtains sulfuric acid solution, and negative electrode obtains sodium hydroxide solution, such as Fig. 5 institute
Show.
(c) electrolyte post processing: electrolytic oxidation liquid carries out the distillation and concentration that reduces pressure, after sulfuric acid concentration reaches 7.0mol/L, dense
Contracting liquid is directly entered deresination lignite wax oxide purification operation；Acid room sulfuric acid solution is after diffusion dialysis, and a part is for brown
Coal cerinic acid is washed, and a part and oxidation filtrate are incorporated as the anolyte of subsequent cycle；Salt room metabisulfite solution concentration adjusts
Salt room is directly returned to as subsequent cycle electrolyte after 1.0mol/L；Catholyte is as producing sodium humate or fulvic acid
The raw material of sodium is directly entered sodium humate or sodium fulvate produces workshop section, as shown in Figure 5.
The naoh concentration that negative electrode obtains is 2.2902mol/L, and cathode efficiency is 89.34%.Anode obtains six
Valency chromium is (with Cr2O7 2-Meter) concentration is 0.2512mol/L, anodic current efficiency is 71.24%.This electrolysis total current efficiency is
160.58%.
Fig. 6 is technique practical photograph, and Fig. 7 is gas phase analysis figure.Fig. 6 and Fig. 7 is by present invention process actual oxidation essence
The result of system.The conclusion that refining effect is good can be drawn from Fig. 6 and Fig. 7.
Embodiment 2:
A the installation of () electrolysis bath is with embodiment 1
B () electrolysis processes: the anolyte that 100L contains 0.8123mol/L chromic sulfate and 0.6mol/L sulphuric acid injects
Anode chamber, injects 100L1mol/L sulfuric acid solution acid room, the potassium sulfate solution of 100L0.8mol/L is injected salt room, will
100L0.6mol/L potassium hydroxide solution injects cathode chamber, adds constant-current dc electricity at three electrolysis bath the two poles of the earth, film four Room and is electrolysed,
Control electric current density is 1100A/m2, in electrolytic process, each tank house electrolyte is carried out by force with supporting corrosion-resistant circulating pump respectively
System circulation, controls each tank house flow rate of liquid and is 50L/min, heat electrolyte in circulating slot, and controls electrolysis
Liquid temp is maintained at 58 ± 2 DEG C；Electrolysis 9 hours with this understanding, respectively to electrolyte Cr (VI) concentration, acid room electricity in anode chamber
Solve molten sulfur acid concentration, cathode chamber concentration of potassium hydroxide is analyzed.Reach electrolysis time, stop electrolysis, close electrolysis bath constant current
DC source, obtains electrolytic oxidation liquid from anode, and acid room obtains sulfuric acid solution, and negative electrode obtains sodium hydroxide solution.
(c) electrolyte post processing: electrolytic oxidation liquid carries out the distillation and concentration that reduces pressure, after sulfuric acid concentration reaches 7.0mol/L, dense
Contracting liquid is directly entered deresination lignite wax oxide purification operation；Acid room sulfuric acid solution is after diffusion dialysis, and a part is for brown
Coal cerinic acid is washed, and a part and oxidation filtrate are incorporated as the anolyte of subsequent cycle；Salt room potassium sulfate solution concentration adjusts
Salt room is directly returned to as subsequent cycle electrolyte after 1.0mol/L；Catholyte is as producing potassium humate or fulvic acid
The raw material of potassium is directly entered potassium humate or potassium fulvate produces workshop section.
The naoh concentration that negative electrode obtains is 3.3965mol/L, and cathode efficiency is 82.45%.Anode obtains six
Valency chromium is (with Cr2O7 2-Meter) concentration is 0.3962mol/L, anodic current efficiency is 70.08%.This electrolysis total current efficiency is
152.53%.
The ultimate principle of the present invention and principal character and advantages of the present invention, the specialty of the industry have more than been shown and described
The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these change and
Improvement both falls within scope of the claimed invention, and claimed scope is by appending claims and equivalence thereof
Thing defines.
Claims (10)
1. a film four Room aqueous solution plate and frame electrolysis bath, it is characterised in that: described electrolysis bath includes setting gradually and connecting
Cathode chamber (A) together, salt room (B), acid room (C) and anode chamber (D), between cathode room (A), salt room (B) and sour room (C)
And between anode chamber (D), it is respectively equipped with a cationic membrane (14,15)；It is provided with an anion between salt room (B) and acid room (C)
Film (16).
A kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 1, it is characterised in that: described electrolysis bath
For rectangular structure, it also includes that two electrolysis bath end plates (1), cathode chamber (A), salt room (B), acid room (C) and anode chamber (D) are put
Between two electrolysis bath end plates (1), two electrolysis bath end plates (1) are tight by the connector through insulation processing through four
It is solidly connected (17) together.
A kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 2, it is characterised in that: described cathode chamber
(A) cathode chamber electrolysis bath deckle board (2), cathode electrode (3) and the cathode chamber silica gel pad (4) being attached onto is included, adjacent two
Electrolysis bath deckle board (2) and cathode electrode (3) it is respectively equipped with between individual tank house silica gel pad (4)；
Described salt room (B) includes salt room electrolysis bath deckle board (5) and two groups of plates, salt room electrolysis bath deckle board (5) being attached onto
Two end faces be respectively provided with one group of plate, often group plate includes salt room silica gel pad (7) and is positioned between salt room silica gel pad (7)
Salt room PP plastic mesh plate protection board (6)；
Described acid room (C) includes sour room electrolysis bath deckle board (8) and two groups of plates, acid room electrolysis bath deckle board (8) being attached onto
Two end faces be respectively provided with one group of plate, include acid room silica gel pad (9) and be positioned at acid with one group of plate of salt room (B) sides adjacent
Sour room PP plastic mesh plate protection board (10) between room silica gel pad (9)；Another group plate includes acid room silica gel pad (9) and acid
Room PP plastic mesh plate protection board (10), and acid room silica gel pad (9) attaches with acid room electrolysis bath deckle board (8) respective end end face；
Described anode chamber (D) includes anode chamber's electrolysis bath deckle board (11), anode electrode (12) and three anodes being attached onto
Room silica gel pad (13), is respectively equipped with anode chamber's electrolysis bath deckle board (11) and anode electricity between adjacent anode room silica gel pad (13)
Pole (12)；
Cathode electrode (3) is connected with negative pole and the positive pole of DC source respectively with anode electrode (12).
A kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 3, it is characterised in that: described cathode chamber
(A) cathode electrode (3) is near salt room (B), and the anode electrode (12) of described anode chamber (D) is near acid room (C).
A kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 4, it is characterised in that: two electrolysis baths
The material of end plate (1) is polypropylene or politef.
6. according to the one three film four Room aqueous solution plate and frame electrolysis bath described in claim 1,2,3,4 or 5, it is characterised in that:
Described cationic membrane is perfluorinated sulfonic acid cation exchange membrane, and described anionic membrane is homogeneous-phase anion exchange film；Described negative electrode electricity
The most netted Ti cathode electrode, described anode electrode is netted ti-lead dioxide anode electrode.
A kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 6, it is characterised in that:
Anode chamber is contained within the sulfuric acid solution of chromic sulfate, and acid is indoor containing sulfuric acid solution, and sodium sulfate or potassium sulfate are contained in salt indoor
Solution, cathode chamber is contained within sodium hydroxide or potassium hydroxide solution；Each room electrolyte flow mode is bottom in and top out, by supporting
Corrosion-resistant circulating pump forced circulation.
8. the application of a film four Room aqueous solution plate and frame electrolysis bath, it is characterised in that electrolytic condition is: anode chamber is for containing
After 0.6～0.8mol/L chromic sulfate and the sulfuric acid solution of 0.1～1.0mol/L or oxide purification containing Cr3+And Cr2O7 2-Sulfur
Acid solution；
Acid room is the sulfuric acid solution of 0.5-1.0mol/L；
Salt room is metabisulfite solution or the potassium sulfate solution of 0.5～1.0mol/L；
Cathode chamber is sodium hydroxide or the potassium hydroxide solution of 0.2～0.6mol/L.
The application of a kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 8, it is characterised in that
Electrolysis temperature is 50 DEG C～70 DEG C, and electric current density is 900～1200A/m2, electrolysis time is batch (-type) or continuous way, accumulative
Electrolysis time is between 7～10 hours.
The application of a kind of three film four Room aqueous solution plate and frame electrolysis baths the most according to claim 9, it is characterised in that reach
After electrolysis time, anode chamber's electrolyte through decompression distillation and concentration and adjust acidity be used for oxide purification deresination lignite wax or
Deresination peat wax, after oxidation waste liquid removes petroleum tailings and organic molecule impurity, regulates acidity, obtains containing 0.6～0.8mol/
L chromic sulfate and the sulfuric acid oxidation filtrate of 0.1～1.0mol/L, return electrolyzer anode chamber's electrolytic regeneration；Acid room obtains containing Cr3+
A sulfuric acid solution part through diffusion dialysis, reclaim acid and refine pickling section, diffusion dialysis residual liquid for lignite wax oxidation bleaching
Merging with oxidation filtrate, a part continues to be electrolysed as electrolyte through dilution；Salt room obtains diluter sodium sulfate or sulfur
Acid potassium solution, supplements moderate amount of sulfuric acid sodium or potassium sulfate, returns to electrolysis bath salt room and be electrolysed；Cathode chamber electrolyte is through clean
Change, the raw material produced directly as sodium humate, potassium humate, sodium fulvate, potassium fulvate.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557808A (en) * | 2017-10-17 | 2018-01-09 | 淄博格瑞水处理工程有限公司 | A kind of relieving haperacidity alkali membrane reactor |
| CN107904618A (en) * | 2017-09-06 | 2018-04-13 | 肯特催化材料股份有限公司 | The method of four Room, the three film electrolytic preparation co-production halogen acids of short chain quaternary ammonium base |
| CN113249582A (en) * | 2021-05-06 | 2021-08-13 | 中南大学 | Treatment method of aluminum metallurgy solid waste |
| CN113979520A (en) * | 2021-11-23 | 2022-01-28 | 中国科学院江西稀土研究院 | Device and method for recycling ammonia nitrogen in wastewater by electrochemical coupling functional membrane |
| CN114592206A (en) * | 2022-03-30 | 2022-06-07 | 西安热工研究院有限公司 | Ion membrane electrolysis system, system and method for preparing caustic soda and hydrochloric acid by electrolyzing hydrogen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU939399A1 (en) * | 1979-06-19 | 1982-06-30 | Институт Неорганический Химии Ан Латвсср | Process for purifying effluents from lithium, zink and chromium |
| EP1010455A1 (en) * | 1998-12-18 | 2000-06-21 | Etablissements A. Richard | Electro-membrane process for preparing nickel hypophosphite |
| CN202297801U (en) * | 2011-09-20 | 2012-07-04 | 福建师范大学 | Three-membrane four-chamber electrolytic cell with high ion conductivity |
| CN102776525A (en) * | 2012-08-20 | 2012-11-14 | 云南天恒通泰腐植酸有限公司 | Method for electrolyzing and recycling chromium containing waste liquid generated during oxidation decoloration of montan wax, deresinated montan wax, peat wax or deresinated peat wax |
| CN102815821A (en) * | 2012-08-20 | 2012-12-12 | 云南天恒通泰腐植酸有限公司 | Method for separating and recycling chrome-contained oxide waste liquid produced by oxidation and decoloration of lignite wax, deresination lignite wax, peat wax or deresination peat wax |
| CN105112934A (en) * | 2015-09-16 | 2015-12-02 | 青岛润兴光电材料有限公司 | Preparation method for tetra-alkyl ammonium hydroxide |
-
2016
- 2016-08-24 CN CN201610717310.4A patent/CN106222690B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU939399A1 (en) * | 1979-06-19 | 1982-06-30 | Институт Неорганический Химии Ан Латвсср | Process for purifying effluents from lithium, zink and chromium |
| EP1010455A1 (en) * | 1998-12-18 | 2000-06-21 | Etablissements A. Richard | Electro-membrane process for preparing nickel hypophosphite |
| CN202297801U (en) * | 2011-09-20 | 2012-07-04 | 福建师范大学 | Three-membrane four-chamber electrolytic cell with high ion conductivity |
| CN102776525A (en) * | 2012-08-20 | 2012-11-14 | 云南天恒通泰腐植酸有限公司 | Method for electrolyzing and recycling chromium containing waste liquid generated during oxidation decoloration of montan wax, deresinated montan wax, peat wax or deresinated peat wax |
| CN102815821A (en) * | 2012-08-20 | 2012-12-12 | 云南天恒通泰腐植酸有限公司 | Method for separating and recycling chrome-contained oxide waste liquid produced by oxidation and decoloration of lignite wax, deresination lignite wax, peat wax or deresination peat wax |
| CN105112934A (en) * | 2015-09-16 | 2015-12-02 | 青岛润兴光电材料有限公司 | Preparation method for tetra-alkyl ammonium hydroxide |
Non-Patent Citations (3)
| Title |
|---|
| 钱军等: ""电渗析法净化处理含铬电镀废水的研究"", 《环境科学》 * |
| 陈松茂: "《有机化工产品电解合成》", 30 September 1994, 上海科学技术文献出版社 * |
| 马淳安: "《有机电化学合成导论》", 31 March 2002, 科学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904618A (en) * | 2017-09-06 | 2018-04-13 | 肯特催化材料股份有限公司 | The method of four Room, the three film electrolytic preparation co-production halogen acids of short chain quaternary ammonium base |
| CN107904618B (en) * | 2017-09-06 | 2020-02-18 | 肯特催化材料股份有限公司 | Method for preparing parallel-connection hydrogen halide acid by four-chamber three-membrane electrolysis of short-chain quaternary ammonium hydroxide |
| CN107557808A (en) * | 2017-10-17 | 2018-01-09 | 淄博格瑞水处理工程有限公司 | A kind of relieving haperacidity alkali membrane reactor |
| CN113249582A (en) * | 2021-05-06 | 2021-08-13 | 中南大学 | Treatment method of aluminum metallurgy solid waste |
| CN113979520A (en) * | 2021-11-23 | 2022-01-28 | 中国科学院江西稀土研究院 | Device and method for recycling ammonia nitrogen in wastewater by electrochemical coupling functional membrane |
| CN113979520B (en) * | 2021-11-23 | 2023-10-27 | 中国科学院江西稀土研究院 | Device and method for recycling ammonia nitrogen in wastewater through electrochemical coupling functional membrane |
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