CN103182285A - Product and method for inhibiting acid mist diffusion during electrodeposition process - Google Patents
Product and method for inhibiting acid mist diffusion during electrodeposition process Download PDFInfo
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- CN103182285A CN103182285A CN2011104576558A CN201110457655A CN103182285A CN 103182285 A CN103182285 A CN 103182285A CN 2011104576558 A CN2011104576558 A CN 2011104576558A CN 201110457655 A CN201110457655 A CN 201110457655A CN 103182285 A CN103182285 A CN 103182285A
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Abstract
The invention provides a product for inhibiting acid mist diffusion during an electrodeposition process. The product is prepared by loading a room temperature ionic liquid on an immobilization carrier, wherein the room temperature ionic liquid is 1-decyl-3-methylimidazolium hexafluorophosphate and 1-decyl-3-methylimidazolium tetrafluoroborate; the immobilization carrier is made of polyvinyl chloride; and the product is polyvinyl chloride spheres or polyvinyl chloride rings loaded with the room temperature ionic liquid. The invention also provides a method for inhibiting acid mist diffusion during the electrodeposition process. The product and the method can effectively inhibit generation and diffusion of the acid mist during the electrodeposition process, reduce concentration level of the acid mist in an electrodeposition workshop, reduce environmental pollution, effectively improve production operation environment of workers and reduce corrosion degree of equipment in the workshop. The product and the method can be used in hydrometallurgy development and utilization processes of nonferrous metal mines in China.
Description
Technical field
The present invention relates to a kind of product and method that suppresses acid mist diffusion in the electrolytic deposition process, belong to solution-treated part in the hydrometallurgical technology research field.
Background technology
Electrolytic deposition process is one of critical process in the non-ferrous metal wet smelting process such as copper-lead zinc, and this operation makes the purpose metal ion be separated out at negative electrode with high pure state by the redox reaction that takes place between the electrolytic cell anode and cathode.In the electrodeposition system, following reaction mainly takes place in negative and positive two interpolars:
Anode:
Negative electrode: Me
2++ 2e=Me
0
Shown in reaction, anode reaction produces oxygen, and along with oxygen overflows from electrolyte, part of sulfuric acid also can be carried secretly out, and electrolytic deposition process needs heating in addition, and also can produce some heats in this process reaction, and this can make the volatility of acid increase.The acid of carrying secretly and volatilizing is diffused into and has just formed acid mist in the air.To cause like this that acid mist fills the air in the electrodeposition workshop air, destroy the operating environment in the workshop, strengthen the extent of corrosion of workshop appliance, endanger the healthy of operator especially.
Each hydrometallurgy enterprise and related scientific research mechanism have adopted several different methods for the problem that solves acid mist diffusion in the electrolytic deposition process, and as water absorption method, alkali absorb method and solid absorption method etc., these methods respectively have its advantage, but all investment is bigger, complex operation.Adopt acid fog inhibitor can more efficiently suppress the acid mist diffusion, but present employed acid fog inhibitor is all existing defectives such as cost is higher, consumption big, poor heat stability in varying degrees.Also be a kind of common acidity mist inhibition method and take in electrolytic cell to add polyvinyl chloride plastic bead (ring).Plastic beads is covered electrolyte surface, and this can suppress overflowing of acid mist to a certain extent, reduce acid mist content in the workshop air, but effect is not fairly obvious.
Summary of the invention
The product and the method that the purpose of this invention is to provide acid mist diffusion in a kind of new inhibition electrolytic deposition process.
For achieving the above object, the present invention by the following technical solutions:
A kind of product that suppresses acid mist diffusion in the electrolytic deposition process, its load cell temperature ionic liquid on fixation support is made.
Aforesaid product, wherein preferably, described ionic liquid at room temperature is 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate.
Aforesaid product, wherein preferably, the material of described fixation support is polyvinyl chloride.
Aforesaid product, wherein preferably, described product has been load polyvinyl chloride ball or the polyvinyl chloride ring of ionic liquid at room temperature.
Aforesaid product, wherein preferably, the diameter of described product is 6-10cm.
Aforesaid product, wherein preferably, it is made by following method:
A. ionic liquid at room temperature 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate are mixed according to 2: 1 volume ratio, be dissolved in 2 times again in the 260# of mixeding liquid volume kerosene, by stirring it is mixed;
B. fixation support be impregnated in the mixed liquor of the ionic liquid at room temperature that mixes and kerosene, left standstill 48 hours after fully stirring, the immobilized rate of ionic liquid at room temperature is reached more than 75%, obtain final products.
A kind of method that suppresses acid mist diffusion in the electrolytic deposition process, it is when electrodeposition, and aforesaid product is placed electrolyte, addition is 100/m
2, can play the effect that suppresses the acid mist diffusion.
Aforesaid method, wherein, described product can use repeatedly.
Described ionic liquid at room temperature (RTILs:Room temperature ionic liquids) is the liquid compound that a class is made up of organic cation and organic or inorganic anion under room temperature or close temperature fully, belong to salt, fusing point is usually about below 100 ℃, and 25 ℃～45 ℃ lower densities are 1.21～1.27g/cm
-3Between.Have nontoxic, do not have remarkable vapour pressure, environmentally friendly, do not have flammable, good conductivity and electrochemical window is wide, fusing point is low and liquid zone between the characteristics of wide, Heat stability is good.Applied ionic liquid is water insoluble among the present invention, is slightly soluble in organic solvent, and liquid viscosity is higher, and this produce market is on sale.
The present invention impregnated in spherical or annular polyvinyl chloride carrier in the selected ionic liquid at room temperature under normal temperature condition, make ionic liquid loadedly on carrier by physical action, forms immobilized ionic liquid at room temperature acid mist and suppresses product.
Advantage of the present invention is:
The inventive method is simple to operate, and heat endurance and mechanical stability are strong, and the acid mist inhibition is obvious, has efficient, economical and environment amenable advantage.
Description of drawings
Fig. 1 is the statistical chart that adopts the acid mist level in the workshop of three kinds of different disposal modes when electrodeposition.
The specific embodiment
The inventive method adopts following technical scheme:
(1) obtains ionic liquid at room temperature 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate through synthetic or outsourcing.The two is mixed according to 2: 1 volume ratio, be dissolved in 2 times again in the 260# of mixeding liquid volume kerosene, by stirring it is mixed.The molecular structural formula of described two kinds of ionic liquid at room temperature suc as formula 1 and formula 2 shown in:
Formula 1 1-decyl-3-methylimidazole hexafluorophosphate
Formula 21-decyl-3-methyl imidazolium tetrafluoroborate
(2) select suitable fixation support for use, require this carrier acidproof, heat-resisting, and have certain mechanical strength; Preferably, described carrier material is igelite.
(3) described fixation support be impregnated in the mixed liquor of ionic liquid at room temperature and 260# kerosene, left standstill 48 hours after fully stirring, the immobilized rate of ionic liquid is reached more than 75%, the polyvinyl chloride ball (ring) of ionic liquid at room temperature that obtained load.
Embodiment 1
Get ionic liquid at room temperature 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate, the two is mixed according to 2: 1 volume ratio, be dissolved in 2 times again in the 260# of mixeding liquid volume kerosene, by stirring it is mixed.Be that the polyvinyl chloride ball of 8cm impregnated in the ionic liquid with diameter, left standstill 48 hours after fully stirring, the polyvinyl chloride ball of ionic liquid at room temperature that obtained load.Wherein the immobilized rate of ionic liquid reaches 78%.
Take the cupric oxide ore acidic electrolysis bath, its acidity value is 180g/L, and main component is Cu in this electrolyte
2+: 42g/L; Fe
3+: 3.5g/L, and add surface smoothing agent guar gum commonly used in the electrodeposition operation: 100～120g/tCu and anodic protection agent cobaltous sulfate: 80-120ppm, electrolyte temperature is 38～42 ℃, electrolyte flow rate is 0.25m
3/ min, current density is controlled at 200～220A/m
2
Acid mist inhibition for checking the inventive method, in electrolytic deposition process, use and do not take the acid mist braking measure, add the polyvinyl chloride ball (ring) of adion liquid not and absorption that adding employing the inventive method is made respectively these three kinds of operating conditions of polyvinyl chloride ball (ring) of ionic liquid compare.Polyvinyl chloride ball (ring) addition is 100/m
2And respectively at electrodeposition 12, after 24,36,48 hours, measure acid mist concentration in the workshop.Method detects shown in the acid mist concentration mensuration use " workshop air examinaing method ".Obtain experimental result as shown in Figure 1.
Result shown in Figure 1 shows, suppresses generation and the diffusion that product can suppress acid mist in the electrolytic deposition process effectively by adopting the acid mist among the present invention, reduces the acid mist level in the space, electrodeposition workshop.
Claims (8)
1. a product that suppresses acid mist diffusion in the electrolytic deposition process is characterized in that its load cell temperature ionic liquid on fixation support is made.
2. product as claimed in claim 1 is characterized in that, described ionic liquid at room temperature is 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate.
3. product as claimed in claim 1 or 2 is characterized in that, the material of described fixation support is polyvinyl chloride.
4. product as claimed in claim 1 or 2 is characterized in that, described product has been load polyvinyl chloride ball or the polyvinyl chloride ring of ionic liquid at room temperature.
5. product as claimed in claim 4 is characterized in that, the diameter of described product is 6-10cm.
6. product as claimed in claim 2 is characterized in that, it is made by following method:
A. ionic liquid at room temperature 1-decyl-3-methylimidazole hexafluorophosphate and 1-decyl-3-methyl imidazolium tetrafluoroborate are mixed according to 2: 1 volume ratio, be dissolved in 2 times again in the 260# of mixeding liquid volume kerosene, by stirring it is mixed;
B. fixation support be impregnated in the mixed liquor of the ionic liquid at room temperature that mixes and kerosene, left standstill 48 hours after fully stirring, the immobilized rate of ionic liquid at room temperature is reached more than 75%, obtain final products.
7. a method that suppresses acid mist diffusion in the electrolytic deposition process is characterized in that when electrodeposition, the described product of claim 1 is placed electrolyte, addition is 100/m
2, can play the effect that suppresses the acid mist diffusion.
8. method as claimed in claim 7 is characterized in that, described product can use repeatedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104576558A CN103182285A (en) | 2011-12-30 | 2011-12-30 | Product and method for inhibiting acid mist diffusion during electrodeposition process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104576558A CN103182285A (en) | 2011-12-30 | 2011-12-30 | Product and method for inhibiting acid mist diffusion during electrodeposition process |
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| CN103182285A true CN103182285A (en) | 2013-07-03 |
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ID=48673880
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86107829A (en) * | 1986-11-13 | 1987-06-17 | 山东省蓬莱县塑料滤清器厂 | Plastic anti-acid fog device |
| CN201115831Y (en) * | 2007-09-18 | 2008-09-17 | 青岛洛加化工设备有限公司 | Polyvinyl chloride electric defroster |
| CN101736157A (en) * | 2009-12-14 | 2010-06-16 | 北京有色金属研究总院 | Process for absorbing and extracting valuable metal ions in leachate of laterite nickel ore by applying immobilized room temperature ionic liquid |
| WO2010079141A1 (en) * | 2009-01-12 | 2010-07-15 | Sepp Steinlechner | Tobacco filter |
| CN102276663A (en) * | 2011-05-30 | 2011-12-14 | 南京工业大学 | Preparation method of glucosamine sulfate |
-
2011
- 2011-12-30 CN CN2011104576558A patent/CN103182285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86107829A (en) * | 1986-11-13 | 1987-06-17 | 山东省蓬莱县塑料滤清器厂 | Plastic anti-acid fog device |
| CN201115831Y (en) * | 2007-09-18 | 2008-09-17 | 青岛洛加化工设备有限公司 | Polyvinyl chloride electric defroster |
| WO2010079141A1 (en) * | 2009-01-12 | 2010-07-15 | Sepp Steinlechner | Tobacco filter |
| CN101736157A (en) * | 2009-12-14 | 2010-06-16 | 北京有色金属研究总院 | Process for absorbing and extracting valuable metal ions in leachate of laterite nickel ore by applying immobilized room temperature ionic liquid |
| CN102276663A (en) * | 2011-05-30 | 2011-12-14 | 南京工业大学 | Preparation method of glucosamine sulfate |
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Application publication date: 20130703 |