CN103157421B - Improve ultrasonic wave at the method for replacement process action effect and device - Google Patents
Improve ultrasonic wave at the method for replacement process action effect and device Download PDFInfo
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- CN103157421B CN103157421B CN201310116688.5A CN201310116688A CN103157421B CN 103157421 B CN103157421 B CN 103157421B CN 201310116688 A CN201310116688 A CN 201310116688A CN 103157421 B CN103157421 B CN 103157421B
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Abstract
A kind of ultrasonic wave that improves is at the method for replacement process action effect and device, in or beyond displacement chamber, ultrasonic cleaning equipment is set, the ultrasonic wave sent by ultrasonic cleaning equipment stops displacement reaction solid product at solid phase reduction agent surface deposition, realizes the displacement reaction that solid product is efficiently separated with solid phase reduction agent; Described displacement reaction environment carries out under tiny structure environment, utilizes negative pressure to stop displacement reaction gas-phase product to form effect of air film at airtight displacement chamber inner wall and solid phase reduction agent surface, realizes ensureing ul-trasonic irradiation effect and cleaner production.The present invention is by ultrasonic cleaning function, under tiny structure displacement reaction environment, high-efficient cleaning is except the substitution product on solid phase reduction agent surface, make the abundant exposed fresh activity surface of solid phase reduction agent, accelerate displacement reaction process, and maximization plays solid phase reduction agent effectiveness.
Description
Art
The present invention relates to a kind of method of replacing and device of wet process, especially a kind of ultrasonic wave that improves, at the method for replacement process action effect and device, belongs to wet process technical field.
Background technology
In wet process, being crystalline state by displacement reaction by the ionic state element transformation in solution, is a kind of universal industrial method.For the solid phase reduction agent of displacement reaction, generally include powdery and tabular.Under use powdery reducing agent condition, when granularity does not reach uniformity requirement, often there is certain residual powdery reducing agent to enter in solid phase substitution product, cause reducing agent to waste; Under use tabular reducing agent (namely replacing plate) condition, because the scouring force of solution to be replaced to displacement plate surface is inadequate, solid phase substitution product is easy to be deposited on displacement plate surface, causes the effective permutation table area of displacement plate significantly to reduce.What " by the method for improving zinc powder activity with ultrasonic, device and purposes " (ZL200810031128.9) proposed improves the surface-active method of powdery reducing agent with ultrasonic wave, although make zinc consumption reduce 30-50%, a small amount of zinc powder is still had to enter in solid phase substitution product; Especially along with the significantly raising of displacement efficiency, the gas-phase product produced with displacement reaction also increases thereupon, once gas-phase product forms effect of air film at displacement chamber inner surface, newborn air film will significantly weaken hyperacoustic action effect.Therefore, necessary to formerly being improved by the method that ultrasonic wave improves replacement result.
Summary of the invention
The object of the invention is, for the deficiency of existing improving zinc powder activity with ultrasonic method, propose a kind of method and the device that effectively can improve ultrasonic wave replacement result.
Technical scheme proposed by the invention is: a kind ofly improve the method for ultrasonic wave at replacement process action effect, it is characterized in that: in or beyond airtight displacement chamber, ultrasonic cleaning equipment is set, the ultrasonic wave sent by ultrasonic cleaning equipment stops displacement reaction solid product at solid phase reduction agent surface deposition, realizes the displacement reaction that solid product is efficiently separated with solid phase reduction agent; Described displacement reaction environment carries out under tiny structure environment, utilizes negative pressure to stop displacement reaction gas-phase product to form effect of air film at airtight displacement chamber inner wall and solid phase reduction agent surface, realizes ensureing ul-trasonic irradiation effect and cleaner production.
Further, described tiny structure environment is-0.001-0.450MPa.
Realize improving ultrasonic wave at a tiny structure displacement apparatus for replacement process action effect, at least comprise an airtight displacement chamber, it is characterized in that: be provided with vacuum row fixing apparatus at airtight displacement chamber lower portion; Vacuum suction device is provided with on airtight displacement chamber top; In airtight displacement chamber, be provided with more than the one piece displacement plate vertically inserted, composition replaces passage continuously; Outside airtight displacement chamber, be provided with at least one ultrasonic unit, apply setting ultrasonic wave to the solution to be replaced flowing through displacement passage continuously; Solution to be replaced accepts ultrasonic irradiation and replaces passage by continuous under tiny structure environment.
Further, described displacement plate is soluble metal plate in solution to be replaced, its main body component, is the chemical property at least one metallic element more active than the ionic state metallic element in solution to be replaced.
Further, described continuous displacement passage, be shifted to install by adjacent two blocks of displacement plates and the guiding solution to be replaced way flow that formed through winding time passage of each block displacement plate.
Further, described solution to be replaced, comprises not containing the solution to be replaced of powdery reducing agent and the solution to be replaced containing powdery reducing agent; Described powdery reducing agent, preferably granularity-0.074mm accounts for 100%.
Further, described ultrasonic unit, frequency is 15-20 × 10
3khz, the sound intensity is 0.5-200w/cm
2.
Further, described vacuum row fixing apparatus, comprises at least one lower convergence bucket die cavity room and vacuum valve, and described lower convergence bucket die cavity room, its bottom surface gradient is greater than the angle of repose of solid product in solution to be replaced.
Further, described vacuum suction device, comprises at least one vacuum suction cover, and described vacuum suction cover adopts closed loop fluid-tight tank to implement sealing.
Further, described vacuum state is-0.001-0.450MPa.
A kind of realization improves the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect, at least comprise a ultrasonic displacement apparatus of U-tube, be located at the preposition closed stirrer device before the ultrasonic displacement apparatus of U-tube, be located at the rearmounted closed stirrer device after the ultrasonic displacement apparatus of U-tube, and process out the equipment for separating liquid from solid of the rearmounted closed stirrer device displaced liquid of stream, it is characterized in that: be connected with vacuum suction device on the top of preposition closed stirrer device and rearmounted closed stirrer device, by arranging higher than the preposition closed stirrer device liquid level of the ultrasonic displacement apparatus of U-tube and rearmounted closed stirrer device liquid level, fluid-tight is formed to the ultrasonic displacement apparatus of U-tube, tiny structure is provided to the displacement reaction process in the ultrasonic displacement apparatus of U-tube again by vacuum suction device, displacement reaction gas-phase product is forced to enter vacuum suction device.
Further, the ultrasonic displacement apparatus of described U-tube, its U-tube outside is provided with at least one solution to be replaced in U-tube and launches the hyperacoustic ultrasonic unit of setting.
Further, described preposition closed stirrer device, its ullage is provided with a conveying powdered reducing agent mouth of pipe; Its top is provided with the mouth of pipe that is communicated with vacuum suction device; Above the conveying powdered reducing agent mouth of pipe, be provided with one piece of baffle plate stoping powdery reducing agent to be detached preposition closed stirrer device by tiny structure vacuum.
Further, described rearmounted closed stirrer device, is provided with the outlet that is communicated with equipment for separating liquid from solid bottom it; Its top is provided with the mouth of pipe that is communicated with vacuum suction device.
Further, described powdery reducing agent, preferably granularity-0.074mm accounts for 100%.
Further, described ultrasonic unit, frequency is 15-20 × 10
3khz, the sound intensity is 0.5-200w/cm
2.
Further, described vacuum state is-0.001-0.450MPa.
A kind ofly improve the method for ultrasonic wave at replacement process action effect and the purposes of device, comprise the displacement reaction process being applied to all wet process, especially be applied to refractory gold antimony ore leach after the displacement of liquid sink antimony process, the displacement turmeric process of liquid after gold ore leaches, the displacement dedoping step etc. of liquid after zinc ore leaches.
Know-why of the present invention is:
By arranging ultrasonic cleaning function, stop displacement reaction solid product at solid phase reduction agent surface deposition, to realize the displacement reaction process that solid product and solid phase reduction agent are efficiently separated; By arranging tiny structure displacement reaction environment, displacement reaction gas-phase product is stoped to form effect of air film at airtight displacement chamber inner wall and solid phase reduction agent surface, to realize the object ensureing ul-trasonic irradiation effect and cleaner production.
Advantage of the present invention is:
1) based on the feature adopting the displacement reaction process product of solid phase reduction agent to be created on solid phase reduction agent surface, by ultrasonic cleaning function, high-efficient cleaning is except the substitution product on solid phase reduction agent surface, make the abundant exposed fresh activity surface of solid phase reduction agent, accelerate displacement reaction process, and maximization plays solid phase reduction agent effectiveness.
2) tiny structure displacement reaction environment is set, effectively inhibits displacement reaction gas-phase product to hinder the effect of air film of ul-trasonic irradiation effect, especially achieve displacement reaction process cleans and produce.
3) ultrasonic high-efficiency cleaning is adopted to remove the solid product of replacing on plate, the higher production method of displacement efficiency is provided for adopting the displacement reaction process of tabular reducing agent, be conducive to eliminating and first allow solid product be deposited on displacement plate, then take out the backward production that displacement plate is separated solid product.
Accompanying drawing explanation
Fig. 1 a kind ofly improves the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect.
In Fig. 1,1, solution to be replaced; 2, closed loop fluid-tight tank; 3, vacuum suction device; 4, vacuum suction cover; 5, plate is replaced; 6, liquid level; 7, gas-phase product; 8, displaced liquid outlet; 9, displaced liquid; 10, vacuum row fixing apparatus; 11, solid product; 12, vacuum valve; 13, lower convergence bucket die cavity room; 14, airtight displacement chamber.
Fig. 2 is the tiny structure displacement apparatus top view of vacuum suction device bottom.
In Fig. 2,15, ultrasonic unit; 16, passage is replaced continuously.
Fig. 3 is the closed loop fluid-tight tank top view of vacuum suction cover bottom.
Fig. 4 is the tiny structure displacement apparatus of another kind of raising ultrasonic wave at replacement process action effect.
In Fig. 4,17, closed stirrer device; 18, powdery reducing agent; 19, vacuum tube; 20, vacuum suction device; 21, vacuum tube; 22, closed stirrer device; 23, liquid level; 24, liquid after stirring; 25, the ultrasonic displacement apparatus of U-tube; 26, displaced liquid; 27, liquid level; 28, displaced liquid; 29, equipment for separating liquid from solid; 30, baffle plate; 31, the mouth of pipe; 32, the mouth of pipe; 33, ultrasonic unit; 34, the mouth of pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but protection scope of the present invention is not limited to the scope described by embodiment.
As can be seen from Fig. 1,2 and 4, the present invention relates to and a kind ofly improve the method for ultrasonic wave at replacement process action effect, it is characterized in that: in or beyond displacement chamber, ultrasonic cleaning equipment is set, the ultrasonic wave sent by ultrasonic cleaning equipment stops displacement reaction solid product at solid phase reduction agent surface deposition, realizes the displacement reaction that solid product is efficiently separated with solid phase reduction agent; Described displacement reaction environment carries out under tiny structure environment, utilizes negative pressure to stop displacement reaction gas-phase product to form effect of air film at airtight displacement chamber inner wall and solid phase reduction agent surface, realizes ensureing ul-trasonic irradiation effect and cleaner production.
Further, described tiny structure environment is-0.001-0.450MPa.
embodiment one: a kind ofly improve the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect
Shown in Fig. 1,2 and 3 is a kind ofly improve the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect, comprises at least one airtight displacement chamber 14, is located at the vacuum of airtight displacement chamber lower portion row's fixing apparatus 10 and is located at the vacuum suction device 3 on airtight displacement chamber top.In airtight displacement chamber, be provided with more than the one piece displacement plate 5 vertically inserted, composition is displacement passage 16 continuously; Outside airtight displacement chamber, be provided with at least one ultrasonic unit 15, apply setting ultrasonic wave to the solution to be replaced 1 flowing through displacement passage continuously.
Displacement plate 5 is soluble metal plates in solution 1 to be replaced, its main body component, is the chemical property at least one metallic element more active than the ionic state metallic element in solution to be replaced.
Continuous displacement passage 16, be shifted to install by adjacent two blocks of displacement plates 5 and guiding solution to be replaced 1 way flow that formed through winding time passage of each block displacement plate.
Solution 1 to be replaced, comprises not containing the solution to be replaced of powdery reducing agent and the solution to be replaced containing powdery reducing agent.
Ultrasonic unit 15, frequency is 15-20 × 10
3khz, the sound intensity is 0.5-200w/cm
2.
Vacuum row fixing apparatus 10, comprises at least one lower convergence bucket die cavity room 13 and vacuum valve 12, and the bottom surface gradient of lower convergence bucket die cavity room 13 is greater than the angle of repose of solid product 11 in solution 1 to be replaced.
Vacuum suction device 3, comprises at least one vacuum suction cover 4, and vacuum suction cover 4 adopts closed loop fluid-tight tank 2 to implement sealing.Adopting the sealing means of closed loop fluid-tight tank 2, bringing great convenience for changing displacement plate 5.
Know-why of the present invention is:
By at airtight displacement chamber 14 outer setting ultrasonic unit 15, applying frequency to the solution to be replaced 1 flowing to displacement passage 16 is continuously 15-20 × 10
3khz, the sound intensity are 0.5-200w/cm
2ultrasonic energy, in solution 1 to be replaced, produce the cavitation bubble particle flux of 400 meters per second, to displacement plate 5 surface implement high-efficiency washing.When the object ion state element contact displacement plate 5 in solution 1 to be replaced, namely produce displacement reaction, output solid product and gas-phase product on displacement plate 5 surface.
Solid product is departed from by Ultrasonic Cleaning, enters in solution 1 to be replaced, is deposited to lower convergence bucket bottom surface, die cavity room 13 by solid product self gravitation.Because lower convergence bucket bottom surface, die cavity room 13 gradient is greater than the angle of repose of solid product in solution 1 to be replaced, the lowest part bottom surface that solid product trend is communicated with vacuum valve 12 is gathered.Open vacuum valve 12 by setting-up time, solid product flows out airtight displacement chamber 14, enters vacuum row fixing apparatus 10.Realize the displacement reaction process that solid product is efficiently separated with displacement plate 5 thus.
Gas-phase product clashes into by cavitation bubble particle flux, and trend floats.The tiny structure environment that vacuum suction device 3 provides to airtight displacement chamber 14, reduce further the resistance of gas-phase product emersion liquid level 6, makes the gas-phase product in solution 1 to be replaced can enter vacuum suction cover 4 fast.The object ensureing ul-trasonic irradiation effect and cleaner production can be realized thus.
Are a kind of unidirectional paths because solution 1 to be replaced flows through continuously displacement passage 16, solution 1 to be replaced flows through the displacement reaction process of displacement passage 16 continuously, and essence is the process that a kind of object ion state concentration of element trend definitely reduces.Therefore, set the path of displacement passage 16 continuously, the object ion state concentration of element in the displaced liquid 9 of stream displaced liquid outlet 8 can be controlled out.
Advantage of the present invention is:
1) based on the feature adopting the displacement reaction process product of displacement plate to be created on displacement plate surface, by ultrasonic cleaning function, high-efficient cleaning is except the substitution product on displacement plate surface, make the abundant exposed fresh activity surface of displacement plate, accelerate displacement reaction process, and maximization plays displacement plate material effectiveness.
2) tiny structure displacement reaction environment is set, effectively inhibits displacement reaction gas-phase product to hinder the effect of air film of ul-trasonic irradiation effect, especially achieve displacement reaction process cleans and produce.
3) compared with traditional board-like substitute mode, displacement efficiency significantly improves, and solid product is collected by automatic control.
4) the Separation of Solid and Liquid load of rearmounted solid-liquid separating equipment to displaced liquid is significantly decreased.
embodiment two: another kind of raising ultrasonic wave is at the tiny structure displacement apparatus of replacement process action effect
Shown in Fig. 4 is another kind of improve the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect, comprise the ultrasonic displacement apparatus of at least one U-tube 25, be located at the ultrasonic displacement apparatus of U-tube 25 before preposition closed stirrer device 17, be located at the ultrasonic displacement apparatus of U-tube 25 after rearmounted closed stirrer device 22, to be communicated with the vacuum suction device 20 of preposition closed stirrer device 17 and rearmounted closed stirrer device 22 by vacuum tube 19 with 21 and to process out the equipment for separating liquid from solid 29 of stream rearmounted closed stirrer device 22 displaced liquid 28.By arranging higher than the preposition closed stirrer device liquid level 23 of the ultrasonic displacement apparatus of U-tube 25 and rearmounted closed stirrer device liquid level 27, fluid-tight is formed to the ultrasonic displacement apparatus 25 of U-tube, there is provided tiny structure by the displacement reaction process in the ultrasonic displacement apparatus 25 of vacuum suction device 20 pairs of U-tube again, force displacement reaction gas-phase product to enter vacuum suction device 20.
The ultrasonic displacement apparatus 25 of U-tube, its U-tube outside is provided with at least one solution 1 to be replaced in U-tube and launches the hyperacoustic ultrasonic unit 33 of setting.
Preposition closed stirrer device 17, is provided with the mouth of pipe 31 of a conveying powdered reducing agent 18 above its liquid level 23; Its top is provided with the mouth of pipe 32 that is communicated with vacuum suction device 20; Above the conveying powdered reducing agent mouth of pipe 31, be provided with one piece of baffle plate 30 stoping powdery reducing agent 18 to be detached preposition closed stirrer device 17 by tiny structure vacuum.
Rearmounted closed stirrer device 22, is provided with the outlet that is communicated with equipment for separating liquid from solid 29 bottom it; Its top is provided with the mouth of pipe 34 that is communicated with vacuum suction device 20.
Powdery reducing agent 18, preferably granularity-0.074mm accounts for 100%.
Ultrasonic unit 33, frequency is 15-20 × 10
3khz, the sound intensity is 0.5-200w/cm
2.
Know-why of the present invention is:
In closed stirrer device 17, the solution to be replaced 1 that becomes a mandarin is uniformly mixed with the powdery reducing agent 18 that becomes a mandarin, and output starts liquid 24 after the stirring of displacement reaction.Under the potential energy effect that liquid level 23 provides, gravity flow enters the ultrasonic displacement apparatus 25 of U-tube.Open ultrasonic unit 33, i.e. forming frequency 15-20 × 10 in the U-tube filling with the ultrasonic displacement apparatus 25 of U-tube stirring rear liquid 24
3khz, sound intensity 0.5-200w/cm
2ultrasonic energy field, to stir after liquid 24 produce 400 meters per second cavitation bubble particle flux clash into, displacement reaction is carried out fast.After after stirring, liquid 24 flows through the ultrasonic displacement apparatus 25 of at least one U-tube, displacement reaction completes, output displaced liquid 26.The gas-phase product that displacement reaction produces is there is in closed stirrer device 17, the ultrasonic displacement apparatus 25 of U-tube and closed stirrer device 22, by the tiny structure environmental activity that vacuum suction device 20 is built, emersion liquid level 23 and 27, enter vacuum suction device 20 by vacuum tube 19 and 21, carry rearmounted operation process.In closed stirrer device 22, the displaced liquid that becomes a mandarin 26 is bled through stirring and tiny structure and is removed gas-phase product, output displaced liquid 28, and pumping equipment for separating liquid from solid 29 completes Separation of Solid and Liquid.Realize thus improving the tiny structure replacement process of ultrasonic wave at replacement process action effect.
Advantage of the present invention is:
1) based on the feature adopting the displacement reaction process product of powdery reducing agent to be created on powdery reducing agent surface, by ultrasonic cleaning function, high-efficient cleaning is except the substitution product on powdery reducing agent surface, make the abundant exposed fresh activity surface of powdery reducing agent, accelerate displacement reaction process, and maximize the material availability having played powdery reducing agent;
2) tiny structure displacement reaction environment is set, effectively inhibits displacement reaction gas-phase product to hinder the effect of air film of ul-trasonic irradiation effect, especially achieve displacement reaction process cleans and produce.
Direct application of the present invention; that after refractory gold antimony ore leaches, antimony process is sunk in the displacement of liquid; the displacement turmeric process of liquid after gold ore leaches; the displacement dedoping step of liquid after zinc ore leaches; especially containing the high-efficiency environment friendly removal process of golden cyanide residue; but from know-why, practical use of the present invention, can expand to the displacement reaction process of all wet process.
Claims (3)
1. one kind is improved the tiny structure displacement apparatus of ultrasonic wave in replacement process action effect method, in or beyond displacement chamber, ultrasonic cleaning equipment is set, the ultrasonic wave sent by ultrasonic cleaning equipment stops displacement reaction solid product at solid phase reduction agent surface deposition, realizes the displacement reaction that solid product is efficiently separated with solid phase reduction agent; Described ultrasonic unit, frequency is 15-20 × 10
3khz, the sound intensity is 0.5-200w/cm
2, in solution to be replaced, produce the cavitation bubble particle flux of 400 meters per second; Described displacement reaction environment carries out under the tiny structure environment of-0.001-0.450MPa, negative pressure is utilized to stop displacement reaction gas-phase product to form effect of air film at airtight displacement chamber inner wall and solid phase reduction agent surface, realize ensureing ul-trasonic irradiation effect and cleaner production, described negative pressure displacement device at least comprises an airtight displacement chamber, it is characterized in that: be provided with vacuum row fixing apparatus at airtight displacement chamber lower portion; Vacuum suction device is provided with on airtight displacement chamber top; In airtight displacement chamber, be provided with more than the one piece displacement plate vertically inserted, composition replaces passage continuously; Outside airtight displacement chamber, be provided with at least one ultrasonic unit, apply setting ultrasonic wave to the solution to be replaced flowing through displacement passage continuously; Solution to be replaced accepts ultrasonic irradiation and passes through displacement passage continuously under tiny structure environment; Described displacement plate is soluble metal plate in solution to be replaced, its main body component, is the chemical property at least one metallic element more active than the ionic state metallic element in solution to be replaced; Described continuous displacement passage, be shifted to install by adjacent two blocks of displacement plates and the guiding solution to be replaced way flow that formed through winding time passage of each block displacement plate; Described vacuum row fixing apparatus, comprises at least one lower convergence bucket die cavity room and vacuum valve, and described lower convergence bucket die cavity room, its bottom surface gradient is greater than the angle of repose of solid product in solution to be replaced.
2. a kind of as described in claim 1 improves the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect, it is characterized in that: described solution to be replaced, comprises not containing the solution to be replaced of powdery reducing agent and the solution to be replaced containing powdery reducing agent; Described powdery reducing agent, granularity-0.074mm accounts for 100%.
3. a kind of as described in claim 1 improves the tiny structure displacement apparatus of ultrasonic wave at replacement process action effect, it is characterized in that: described vacuum suction device, comprise at least one vacuum suction cover, described vacuum suction cover adopts closed loop fluid-tight tank to implement sealing; Described vacuum state is-0.001-0.450MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310116688.5A CN103157421B (en) | 2013-04-07 | 2013-04-07 | Improve ultrasonic wave at the method for replacement process action effect and device |
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|---|---|---|---|
| CN201310116688.5A CN103157421B (en) | 2013-04-07 | 2013-04-07 | Improve ultrasonic wave at the method for replacement process action effect and device |
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| CN103157421A CN103157421A (en) | 2013-06-19 |
| CN103157421B true CN103157421B (en) | 2016-02-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101218359A (en) * | 2005-07-06 | 2008-07-09 | 株式会社神钢环境舒立净 | Process for recovery of metals and equipment therefor |
| CN101709461A (en) * | 2009-11-06 | 2010-05-19 | 广东工业大学 | Method for displacement chemical silver plating on copper powder |
| JP2010264433A (en) * | 2009-05-14 | 2010-11-25 | Shinka Sangyo Kk | Ultrasonic-photochemical hybrid reaction apparatus |
| CN102389644A (en) * | 2011-09-28 | 2012-03-28 | 株洲市兴民科技有限公司 | Closed ultrasonic leaching method and device thereof |
-
2013
- 2013-04-07 CN CN201310116688.5A patent/CN103157421B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101218359A (en) * | 2005-07-06 | 2008-07-09 | 株式会社神钢环境舒立净 | Process for recovery of metals and equipment therefor |
| JP2010264433A (en) * | 2009-05-14 | 2010-11-25 | Shinka Sangyo Kk | Ultrasonic-photochemical hybrid reaction apparatus |
| CN101709461A (en) * | 2009-11-06 | 2010-05-19 | 广东工业大学 | Method for displacement chemical silver plating on copper powder |
| CN102389644A (en) * | 2011-09-28 | 2012-03-28 | 株洲市兴民科技有限公司 | Closed ultrasonic leaching method and device thereof |
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