CN2151143Y - Iron impurity treater for chromate waste liquid by electrochemical method - Google Patents
Iron impurity treater for chromate waste liquid by electrochemical method Download PDFInfo
- Publication number
- CN2151143Y CN2151143Y CN 92241773 CN92241773U CN2151143Y CN 2151143 Y CN2151143 Y CN 2151143Y CN 92241773 CN92241773 CN 92241773 CN 92241773 U CN92241773 U CN 92241773U CN 2151143 Y CN2151143 Y CN 2151143Y
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- waste liquor
- wiring
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000002699 waste material Substances 0.000 title claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 title claims description 14
- 239000012535 impurity Substances 0.000 title abstract description 7
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title abstract description 3
- 238000002848 electrochemical method Methods 0.000 title abstract description 3
- 239000002253 acid Substances 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 5
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001457 metallic cations Chemical class 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model provides a device for treating the iron impurity of chromate waste liquor by electrochemical method, mainly composed of a tank 1, a wire connecting anode (+) plate 2, an isolator 3, a wire connecting cathode (-) plate 4, catholyte 5, waste liquor 6, an anode region 6A and a cathode region 5A. The device has simple structure, low cost, convenient operation and high safety. The utility model is suitable for removing unnecessary metal impurities such as iron, copper and nickel in various strong-acid medium waste liquor. The utility model can be specially used for treating waste liquor and can be used simultaneously with production in order to regenerate and recycle the waste liquor.
Description
Generally commonly used to the treatment process of metallic impurity in the chromium acid waste liquid at present:
The ceramic diaphragm electrolytic process: ceramic diaphragm matter is crisp, is difficult to be shaped, and is subjected to the restriction of trough size and geometrical shape, the cost height, thereby limited promoting the use of of it.
Ion exchange method: need the chromic acid tank liquor is diluted to 100 grams per liters, must again the tank liquor heating be concentrated into 200 grams per liters after the processing could use.This method not only bothers time-consuming, owing to work in the strong oxidizing property medium, has quickened the aging of resin, and price is very expensive, and tank liquor such as the electrolytic polishing liquid high to concentration requirement then almost can not be suitable for.
The device that the purpose of this utility model is to provide a kind of electrochemical process to handle iron contamination in the chromium acid waste liquid, its can cheap and simple reaches spent solution regeneration, the purpose that infinite loop is used.
The purpose of this utility model is achieved in that in pending chromic acid lean solution groove, and a shield retaining that catholyte is housed is set, and one or several wiring negative plates are set in catholyte, constitutes the cathodic area.Several wiring positive plates are set in the lean solution outside shield retaining, constitute the positive column.Cathode-anode plate is all used insoluble stereotype, and negative plate and positive plate area are than being 1:2～4.Catholyte adopts chromic anhydride 50～60 grams per liters, caustic soda 10～15 grams per liters.The selection principle of catholyte is that the negatively charged ion of introducing should not influence the use of handling positive column, back solution.Tank liquor is heated to 55～65 ℃, after cathode-anode plate is connected direct supply, and cathode current density 7～15 peace/decimetres
2, under electric field action, the metallic cation iron in the chromium acid waste liquid of positive column is constantly to cathodic area migration enrichment, and the impurity iron ion of positive column constantly reduces, and the chromium acid waste liquid of positive column is purified.Purge cases please be reported by overstress testing: iron-holder is 69 grams per liters in the ortho-chromic acid waste liquid, iron level is 1.34 grams per liters after 520 ampere-hours of switching on, as can be seen, chromic acid solution iron level after the processing is significantly less than the standard (electroplating handbook P300) that general technology requires to be not more than every liter 8 gram, the decontamination effect improving of chromic acid solution can be good, make waste liquid reach regeneration, infinite loop is used.
The utility model is compared with the existing technology of disposing waste liquid, simple in structurely easily make, with low cost, easy and safe to operate reliable, not only can be specifically designed to the processing of chromium acid waste liquid but also can carry out synchronously with production, because shield retaining adopts flexible material, be not subjected to the restriction of trough geometrical shape, can be shaped arbitrarily, promote the use of so be adapted to the producer of any scale.The utility model also is applicable to the processing of metallic impurity such as iron, nickel, copper in other strongly-acid medium waste liquid.
Below in conjunction with accompanying drawing, the utility model is further described, Figure of description is the sectional view of the utility model front view.As shown in the figure, the utility model mainly by groove 1, lean solution 6, be arranged on the shield retaining 3 in the lean solution groove 1, catholyte 5 is arranged in shield retaining 3, one or several wiring the moon (-) pole plates 4 are set in catholyte 5, constitute cathodic area 5A, in the lean solution 6 outside shield retaining 3, several wiring sun (+) pole plates 2 are set, constitute compositions such as positive column 6A.
When cathode-anode plate is connected direct supply, cathode current density 7～15 peace/decimetres
2, when tank liquor is heated to 55～65 ℃, under electric field action, metallic cation iron in the chromium acid waste liquid 6 at 6A place, positive column, constantly to the migration enrichment of cathodic area 5A place, and the metallic cation iron at positive column 6A place constantly reduces, be purified at last, make spent solution regeneration, infinite loop is used.Catholyte also can recycle after the precipitation clarification.
Claims (4)
1, a kind of electrochemical process is handled the device of iron contamination in the chromium acid waste liquid, it is characterized in that having: groove [1], wiring sun (+) pole plate [2], wiring negative electrode (-) plate [4], shield retaining [3], catholyte [5], lean solution [6], positive column [6A], cathodic area [5A].
2, according to the described device of claim 1, it is characterized in that shield retaining (3) is a flexible material, can be shaped by the volume size of groove (1).
3,, it is characterized in that wiring sun (+) pole plate (2), wiring the moon (-) pole plate (4) are insoluble stereotype according to the described device of claim 1.
4,, it is characterized in that wiring the moon (-) pole plate (4) and the area ratio of wiring sun (+) pole plate (2) are 1:2～4 according to the described device of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241773 CN2151143Y (en) | 1992-11-24 | 1992-11-24 | Iron impurity treater for chromate waste liquid by electrochemical method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241773 CN2151143Y (en) | 1992-11-24 | 1992-11-24 | Iron impurity treater for chromate waste liquid by electrochemical method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151143Y true CN2151143Y (en) | 1993-12-29 |
Family
ID=33781757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92241773 Expired - Fee Related CN2151143Y (en) | 1992-11-24 | 1992-11-24 | Iron impurity treater for chromate waste liquid by electrochemical method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151143Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665163A (en) * | 2015-09-20 | 2016-06-15 | 大连双迪创新科技研究院有限公司 | Shower nozzle |
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Three-dimensional Electrode Reactor Coupled with Cathodic Reduction and Anodization of Fe2+ |
-
1992
- 1992-11-24 CN CN 92241773 patent/CN2151143Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665163A (en) * | 2015-09-20 | 2016-06-15 | 大连双迪创新科技研究院有限公司 | Shower nozzle |
| CN105665163B (en) * | 2015-09-20 | 2018-01-19 | 大连双迪创新科技研究院有限公司 | Shower bath head |
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Three-dimensional Electrode Reactor Coupled with Cathodic Reduction and Anodization of Fe2+ |
| CN109811355B (en) * | 2019-03-26 | 2021-04-16 | 扬州大学 | Three-dimensional Electrode Reactor Coupled with Cathodic Reduction and Anodization of Fe2+ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |