CN106048660A - Method of preparing silver nitrate solution for silver electrolysis and apparatus therefor - Google Patents
Method of preparing silver nitrate solution for silver electrolysis and apparatus therefor Download PDFInfo
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- CN106048660A CN106048660A CN201610684022.3A CN201610684022A CN106048660A CN 106048660 A CN106048660 A CN 106048660A CN 201610684022 A CN201610684022 A CN 201610684022A CN 106048660 A CN106048660 A CN 106048660A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
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- C—CHEMISTRY; METALLURGY
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention discloses a method of preparing a silver nitrate solution for silver electrolysis and an apparatus therefor. The apparatus includes a nitric acid storage tank having a liquid level meter, a hydrogen peroxide storage tank having a liquid level meter, a mixing and transporting tank, a reaction and circulation tank, a reaction column having a thermometer and a material adding inlet, a metering pump, pipelines, valves and a control system. The method includes the steps of: preparing raw materials including silver powder, 65% nitric acid, 30-50% hydrogen peroxide and softened water according to the mass ratio of 4.38: (2.6-3.6) : 1 : 10.5; controlling the flow speed of inlet liquid between the reaction and circulation tank and the reaction column to be 300-400 ml/min, and performing a reaction for 2-3 h at 40-50 DEG C; supplying a concentrated nitric acid solution, and continuously performing the reaction for 1.5-2.5 h at 40-45 DEG C; and absorbing exhaust gas with a 20-40 g/L alkali solution as an absorption solution to achieve zero emission of harmful gas. The method and the apparatus have short processes, high efficiency and low cost and are clean and environment-friendly.
Description
Technical field
The present invention relates to silver electrolysis tech, particularly relate to a kind of method preparing silver electrolysis silver nitrate solution and dress thereof
Put.
Background technology
Under silver electrolytic process employing nitric acid system, silver nitrate solution is as electrolyte.In electrolytic process, along with foreign ion
Continuous accumulation in the electrolytic solution, for ensureing argentum powder quality, needs regular open circuit portions electrolyte to process, supplements cleaning electrolysis simultaneously
Liquid.Silver electrolyte preparation method is usually argentum powder and concentrated nitric acid direct reaction the most both at home and abroad, and the shortcoming of this liquid making process is shape
Becoming a large amount of oxides of nitrogen gas, relatively big to operating environment harm, to there is also nitric acid utilization rate low for this liquid making mode simultaneously, produces into
This high deficiency.
In recent years, along with country, enterprise's attention to production process safety and environmental protection, environmentally friendly technique is increasingly closed
Note.About the method for novel silver nitrate liquid making, the European patent (0568259 A1) of Rosato et al. application proposes: nitric acid dissolves
Adding part hydrogen peroxide in the course of reaction of argentum powder, stop the generation of nitrogen oxides, dominant response formula is: 2Ag+2HNO3 +
H2O2 = 2AgNO3 + 2H2O, nitric acid is 3.7:1 with the reaction theory mass ratio of hydrogen peroxide, in order to reduce oxides of nitrogen gas
Generating capacity, is added significantly to the dioxygen water yield in the method, the two ratio controls in (0.78 ~ 1.42): 1.The defect of the method is:
Owing to silver nitrate solution remaining a large amount of hydrogen peroxide, the most on the one hand cause liquid making cost to increase, on the other hand cause silver electrolysis
Process cathode efficiency reduces.
Zhou Songlins etc. (CN101660173 B) propose silver nitrate solution preparation method and the device of a kind of silver electrolysis, it
It is in course of reaction, be initially charged hydrogen peroxide, adds the dilute nitric acid solution prepared, react reactant liquor overflow after a stage
Cool down to dashpot, after being cooled to room temperature, add nitric acid, return reactive tank and carry out second stage reaction.The defect of the method is:
The reaction related to due to argentum powder liquid making is Fast exothermic reaction, and the reactive tank that this patented technology relates to is not installed cooling system, leaned on
Natural cooling is the longest, and production efficiency is low and whole process operation is cumbersome.
Summary of the invention
It is an object of the invention to provide a kind of short route, efficient, the preparation silver electrolysis nitric acid of low cost, clean environment firendly
The method of silver solution and device thereof, the environmental protection solving to exist when electrolysis silver nitrate solution prepared by current argentum powder is poor, process technique
The problems such as complicated, production cost height, device are unreasonable.
For realizing object above, the method for preparation silver electrolysis silver nitrate solution in the present invention, first by raw material in mass ratio
For argentum powder: 55% ~ 65% nitric acid: 30% ~ 50% hydrogen peroxide: soften water=4.38: (2.6-3.6): get the raw materials ready at 1: 10.5, then by with
Lower step operation:
A argentum powder is added in reaction column by ()；
B () addition softening water and quality in mixing transhipment groove, than the concentrated nitric acid solution of concentration 55% ~ 65%, stirs 1～2 minute
After, addition quality, than the hydrogen peroxide of concentration 30% ~ 50%, stirs；
C the solution that (b) step prepares is delivered in reaction cycle groove by (), open and be connected with the outlet of reaction cycle trench bottom
Dosing pump, constantly this solution is entered in reaction column bottom reaction column with the flow of 300 ~ 400mL/min, circulation fluid from
Reaction column overfall flows out and returns circulating slot, keeps reaction temperature at 40-50 DEG C by jacket water (J.W.) cooling system, and the nitrogen of generation aoxidizes
Thing gas content is less than 20ppm；
D (), after 2-3 hour reacts, when silver concentration reaches 150 ~ 300g/L in solution in circulating slot, is opened and is connected nitric acid storage
The valve of groove adds the concentrated nitric acid solution of 55% ~ 65%, after stirring 1-2min, is then turned on reaction cycle groove and is connected with reaction column
Dosing pump remain argentum powder in reaction column to dissolve, reacted after 1.5-2.5 hour and terminate, finished product silver nitrate solution is from reaction column
Bottom is delivered in electrolyte circulating slot, and solution concentration of silver ions is 200 ~ 350g/L, the temperature of course of reaction silver nitrate solution
Controlling at 40～45 DEG C by jacket water (J.W.) cooling system, the oxides of nitrogen gas content of generation is less than 15ppm；
E () opens reaction column top and tail gas collecting device in course of reaction, use 20-40g/L alkali liquor to inhale as absorbing liquid
Ending gas, it is achieved harmful gas zero-emission.
Described alkali liquor is sodium hydroxide solution, concentration range 20-40g/L.
The device that in the present invention, method with above-mentioned preparation silver electrolysis silver nitrate solution matches, it includes band liquidometer
Nitric acid storage tank, the hydrogen peroxide storage tank of band liquidometer, mixing transhipment groove, reaction cycle groove, band thermometer and the reaction of charge door
Post, dosing pump, pipeline, valve and control system；The position of described nitric acid storage tank and hydrogen peroxide storage tank higher than mixing transhipment groove and
Reaction cycle groove, the solution making nitric acid storage tank and hydrogen peroxide storage tank can be by the pipeline self of band Valve controlling to mixing transhipment groove
With in reaction cycle groove；The top of described mixing transhipment groove is provided with and softens the demineralized water injection port that water supply line connects；Institute
State that reaction column top is provided with overfall, bottom is provided with inlet and the finished product silver nitrate solution output channel of band valve, reaction column
Cylinder outer wall is provided with water-cooling jacket, and reaction column upper pipe connects device for absorbing tail gas；The bottom of described mixing transhipment groove is passed through
Pipeline connects dosing pump and is followed by reaction cycle groove top, and the overflow outlet on described reaction column top takes back reaction by pipeline and follows
Annular groove top, the outlet at bottom of reaction cycle groove is followed by four-way through valve and dosing pump, the first via by the pipeline of band valve with
Connecting bottom reaction column, the second tunnel is connected to electrolysis cycle groove by the pipeline of band valve.
The outlet at bottom of described reaction cycle groove is followed by four-way through valve and dosing pump and is additionally provided with the pipeline by band valve
Take back the three-way connection (pipe) road on mixing transhipment groove top, in case primary silver nitrate solution can be drawn during solution overfill by reaction cycle groove
Return a part to mixing transhipment groove.
The present invention prepares the silver method of electrolysis silver nitrate solution and device has the advantages that
(1) very exothermic and emitting of causing are reacted during reaction column water-cooling jacket cooling system overcomes silver nitrate solution preparation process
Groove is dangerous, it is achieved temperature-controllable, operates safer；
(2) optimize technological process, it is achieved continuous operations, produce more efficient；
(3) effectively reducing liquid making process nitrogen oxide emission, the tail gas collecting device of interpolation absorbs a small amount of nitrogen oxides, it is achieved
Harmful gas zero-emission.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram of preparation silver electrolysis silver nitrate solution in the present invention.
Reference: nitric acid storage tank 1, hydrogen peroxide storage tank 2, mixing transhipment groove 3, reaction cycle groove 4, reaction column 5, water-cooled folder
Set 5-1, charge door 5-2, device for absorbing tail gas 5-3, thermometer 5-4.
Detailed description of the invention
With detailed description of the invention prepared by the present invention method and the dress thereof of silver electrolysis silver nitrate solution below in conjunction with the accompanying drawings
Put and be described in further detail.
As it is shown in figure 1, the device of preparation silver electrolysis silver nitrate solution includes the nitric acid storage tank of band liquidometer in the present invention
1, the hydrogen peroxide storage tank 2 of band liquidometer, mixing transhipment groove 3, reaction cycle groove 4, band thermometer 5-4 and the reaction of charge door 5-2
Post 5, dosing pump, pipeline, valve and control system；Described reaction column 5 is provided with top overfall, bottom inlet and finished product nitre
Acid silver solution output channel, reaction column cylinder attached water-cooling jacket 5-1, reaction column top connects device for absorbing tail gas 5-3；Described instead
Circulating slot 4 top is answered to have four inlets, respectively nitric acid inlet, hydrogen peroxide inlet, mixing channel connect inlet and follow
Ring liquid entrance, the outlet at bottom of reaction cycle groove 4 is followed by four-way through dosing pump, and the first via is connected to reaction column 5 bottom liquid inlet mouth,
Circulation fluid can be delivered to the top of mixing transhipment groove 3 by the second tunnel, and the 3rd tunnel is connected to electrolysis cycle groove；Described mixing transhipment groove 3
Four inlets, respectively demineralized water injection port, concentrated nitric acid inlet, hydrogen peroxide inlet and reaction cycle groove 4 turns are arranged at top
Fortune silver nitrate solution inlet, and by dosing pump, the solution that mixture in mixing transhipment groove 3 completes is exported to reaction cycle groove 4
On inlet, demineralized water injection port connection soften water supply line, concentrated nitric acid inlet is communicated to concentrated nitric acid storage tank 1；Described
Hydrogen peroxide storage tank 2 is used for storing hydrogen peroxide, position higher than mixing and transhipment groove 3 and reaction cycle groove 4, hydrogen peroxide storage tank 2 molten
Liquid can be delivered to mixing transhipment groove 3 and reaction cycle groove 4 inlet respectively；Described concentrated nitric acid storage tank 1 is used for storing the acid of dense pin,
Position is higher than mixing and transhipment groove 3 and reaction cycle groove 4, and concentrated nitric acid storage tank 1 solution can be delivered to mixing transhipment groove 3 respectively with anti-
Answer circulating slot 4 inlet.
Process conditions that in the present invention, the method for preparation silver electrolysis silver nitrate solution is applicable and scope: raw material and joining
It is argentum powder than in mass ratio: nitric acid: hydrogen peroxide: softening water=4.38: (2.6-3.6): 1: 10.5；Wherein nitric acid HNO3Matter
Amount specific concentration is 65%, oxydol H2O2Quality be 30～50% than concentration；Feed liquor stream between reaction cycle groove and reaction column
Speed is 300 ~ 400mL/min, and reaction temperature is at 40-50 DEG C；Response time first stage controls 2-3 hour, adds quantitative dense nitre
Acid solution, continues reaction 1.5-2.5 hour, and reaction terminates, and this process temperature controls at 40～45 DEG C；Use 20-40g/L hydrogen-oxygen
Change sodium solution as absorbing liquid, it is achieved harmful gas zero-emission.
Above-mentioned raw materials and mass percent can use following several specific embodiment:
Embodiment 1, above-mentioned raw materials and mass ratio are argentum powder: nitric acid: hydrogen peroxide: water=4.38: 2.6: 1: 10.5；Concrete steps
As follows:
(1) toward the argentum powder adding 100kg in reaction column 5；
(2) open the softening water that the valve that adds water on clear water water supply line adds 240L in mixing and transhipment groove 3, then beat
Open concentrated nitric acid valve to mixing and transhipment groove 3 in add 65% concentrated nitric acid solution 32L, after stir 1～2 minute, addition 30 ~
Hydrogen peroxide 19.1 ~ the 20.5L of 50%, stirs；
(3) (2) step is prepared mixed acid solution to be delivered in reaction cycle groove 4, be then turned on being connected with reaction cycle groove 4
Dosing pump, constantly adds bottom reaction column 5 with the flow of 400mL/min, finally makes to keep cyclic balance, process between the two
Middle monitoring temperature, keeps reaction temperature at 50 DEG C by cooling system, and the oxides of nitrogen gas content of generation is less than 20ppm；
(4) after 3 hours react, in reaction cycle groove 4, in silver nitrate solution, nitric acid exhausts substantially, and now, in solution, silver is dense
Degree is about 150g/L；Open and nitric acid storage tank connecting valve, add the concentrated nitric acid solution 11L of 65%, open after stirring 1-2min
The dosing pump that reaction cycle groove is connected with reaction column, dissolves residue argentum powder, and after reacting 2 hours, reaction terminates, finished product silver nitrate
Solution flow to electrolyte circulating slot bottom reaction column, and now the silver concentration of solution is 200g/L.This process silver nitrate solution
Temperature control at 40～45 DEG C, the oxides of nitrogen gas content of generation be less than 15ppm；
(5) in course of reaction, open reaction column 5 top and tail gas collecting device, use 20-40g/L sodium hydroxide solution conduct
Absorbing liquid, it is achieved harmful gas zero-emission.
Embodiment 2, above-mentioned raw materials and mass ratio are argentum powder: nitric acid: hydrogen peroxide: water=4.38: 3.0: 1: 10.5；Specifically
Step is as follows:
(1) toward the argentum powder adding 100kg in reaction column 5；
(2) open the softening water that the valve that adds water on clear water water supply line adds 230L in mixing and transhipment groove 3, then beat
Open concentrated nitric acid valve to mixing and transhipment groove 3 in add 65% concentrated nitric acid solution 40L, after stir 1～2 minute, addition 30 ~
Hydrogen peroxide 19.1 ~ the 20.5L of 50%, stirs stand-by；
(3) (2) step is prepared mixed acid solution to be delivered in reaction cycle groove 4, be then turned on being connected with reaction cycle groove 4
Dosing pump, constantly adds bottom reaction column 5 with the flow of 400mL/min, finally makes to keep cyclic balance, process between the two
Middle monitoring temperature, keeps reaction temperature at 40-50 DEG C by cooling system, and the oxides of nitrogen gas content of generation is less than 20ppm；
(4) after 2.5 hours react, in reaction cycle groove 4, in silver nitrate solution, nitric acid exhausts substantially, now, and silver in solution
Concentration is about 180-200g/L；Open and nitric acid storage tank connecting valve, add the concentrated nitric acid solution 10L of 65%, stir 1-2min
The dosing pump that rear unlatching reaction cycle groove is connected with reaction column, dissolves residue argentum powder, and after reacting 2.5 hours, reaction terminates, and becomes
Product silver nitrate solution flow to electrolyte circulating slot bottom reaction column, and now the silver concentration of solution is 250-300g/L.This mistake
The temperature of journey silver nitrate solution controls at 40～45 DEG C, and the oxides of nitrogen gas content of generation is less than 15ppm；
(5) in course of reaction, open reaction column 5 top and tail gas collecting device, use 20-40g/L sodium hydroxide solution conduct
Absorbing liquid, it is achieved harmful gas zero-emission.
Embodiment 3, above-mentioned raw materials and mass ratio are argentum powder: nitric acid: hydrogen peroxide: water=4.38: 3.6: 1: 10.5；Concrete step
Rapid as follows:
(1) toward the argentum powder adding 100kg in reaction column 5；
(2) open the softening water that the valve that adds water on clear water water supply line adds 220L in mixing and transhipment groove 3, then beat
Open concentrated nitric acid valve to mixing and transhipment groove 3 in add 65% concentrated nitric acid solution 43L, after stir 1～2 minute, addition 30 ~
Hydrogen peroxide 19.1 ~ the 20.5L of 50%, stirs stand-by；
(3) (2) step is prepared mixed acid solution to be delivered in reaction cycle groove 4, be then turned on being connected with reaction cycle groove 4
Dosing pump, constantly adds bottom reaction column 5 with the flow of 300mL/min, finally makes to keep cyclic balance, process between the two
Middle monitoring temperature, keeps reaction temperature at 40-50 DEG C by cooling system, and the oxides of nitrogen gas content of generation is less than 20ppm；
(4) after 2 hours react, in reaction cycle groove 4, in silver nitrate solution, nitric acid exhausts substantially, and now, in solution, silver is dense
Degree is about 200g/L；Open and nitric acid storage tank connecting valve, add the concentrated nitric acid solution 16L of 65%, open after stirring 1-2min
The dosing pump that reaction cycle groove is connected with reaction column, dissolves residue argentum powder, and after reacting 1.5 hours, reaction terminates, finished product nitric acid
Silver solution flow to electrolyte circulating slot bottom reaction column, and now the silver concentration of solution is 280-330g/L.This process nitric acid
The temperature of silver solution controls at 40～45 DEG C, and the oxides of nitrogen gas content of generation is less than 15ppm；
(5) in course of reaction, open reaction column 5 top and tail gas collecting device, use 20-40g/L sodium hydroxide solution conduct
Absorbing liquid, it is achieved harmful gas zero-emission.
The present invention prepare silver electrolysis silver nitrate solution method in, argentum powder dissolve major influence factors be reaction temperature,
Time, concentration of nitric acid.When less than above-mentioned reaction temperature lower limit, argentum powder dissolution velocity is slack-off, affects production efficiency, higher than above-mentioned
Temperature upper limit then reaction rate is accelerated, and decomposing hydrogen dioxide solution speed is accelerated, and needs to strengthen pharmaceutical quantities, and temperature is too high is more than 90 DEG C, molten
Liquid is overheated that to risk groove dangerous；When less than above-mentioned response time lower limit, argentum powder unreacted is complete, and in liquid making, silver nitrate concentration is inadequate,
Do not reach electrolyte requirement；When less than above-mentioned nitric acid addition lower limit, not exclusively, in liquid making, silver nitrate concentration is or not argentum powder reaction
Enough, next affects reaction efficiency, a large amount of higher than being easily generated during the above-mentioned nitric acid addition upper limit too high liquid making of then concentration of nitric acid
Oxides of nitrogen gas, cause hydrogen peroxide absorption not exclusively.
The treatment effect contrast of three above embodiment is shown in Table 1, and the index parameter of embodiment 3 is optimal as seen from Table 1, for
Good embodiment.
Table 1 each embodiment Contrast on effect table
It should be noted that, the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, do not taking off
On the premise of the principle of the invention, it is also possible to improved according to the above description or modify, all these improvement or modification are all answered
Fall in the protection domain of the claims in the present invention.
Claims (4)
1. the method preparing silver electrolysis silver nitrate solution, is characterized in that: first by raw material in mass ratio for argentum powder: 55% ~
65% nitric acid: 30% ~ 50% hydrogen peroxide: softening water=4.38: (2.6-3.6): get the raw materials ready at 1: 10.5, then operation according to the following steps:
A argentum powder is added in reaction column by ()；
B () adds softening water and the concentrated nitric acid solution of 55% ~ 65% in mixing transhipment groove, after stirring 1～2 minute, add 30%
The hydrogen peroxide of ~ 50%, stirs；
C the solution that (b) step prepares is delivered in reaction cycle groove by (), open and be connected with the outlet of reaction cycle trench bottom
Dosing pump, constantly this solution is entered in reaction column bottom reaction column with the flow of 300 ~ 400mL/min, circulation fluid from
Reaction column overfall flows out and returns circulating slot, keeps reaction temperature at 40-50 DEG C by jacket water (J.W.) cooling system, and the nitrogen of generation aoxidizes
Thing gas content is less than 20ppm；
D (), after 2-3 hour reacts, when silver concentration reaches 150 ~ 300g/L in solution in circulating slot, is opened and is connected nitric acid storage
The valve of groove adds the concentrated nitric acid solution of 55% ~ 65%, after stirring 1-2min, is then turned on reaction cycle groove and is connected with reaction column
Dosing pump remain argentum powder in reaction column to dissolve, reacted after 1.5-2.5 hour and terminate, finished product silver nitrate solution is from reaction column
Bottom is delivered in electrolyte circulating slot, and solution concentration of silver ions is 200 ~ 350/L, and the temperature of course of reaction silver nitrate solution is led to
Crossing jacket water (J.W.) cooling system and control at 40～45 DEG C, the oxides of nitrogen gas content of generation is less than 15ppm；
E () opens reaction column top and tail gas collecting device in course of reaction, use 20-40g/L alkali liquor to inhale as absorbing liquid
Ending gas, it is achieved harmful gas zero-emission.
2. the method preparing silver electrolysis silver nitrate solution as claimed in claim 1, is characterized in that: described alkali liquor is sodium hydroxide
Solution.
3., for a device for the method for preparation silver electrolysis silver nitrate solution described in claim 1, it is characterized in that: it includes
Nitric acid storage tank, the hydrogen peroxide storage tank of band liquidometer, mixing transhipment groove, reaction cycle groove, band thermometer and charging with liquidometer
Reaction column, dosing pump, pipeline, valve and the control system of mouth；The position of described nitric acid storage tank and hydrogen peroxide storage tank is higher than mixing
Transhipment groove and reaction cycle groove, the solution making nitric acid storage tank and hydrogen peroxide storage tank can be by the pipeline self of band Valve controlling to mixed
Close in transhipment groove and reaction cycle groove；The top of described mixing transhipment groove is provided with and softens the softening water note that water supply line connects
Entrance；Described reaction column top is provided with overfall, bottom is provided with inlet and the finished product silver nitrate solution output channel of band valve,
Reaction column cylinder outer wall is provided with water-cooling jacket, and reaction column upper pipe connects device for absorbing tail gas；The end of described mixing transhipment groove
Portion connects dosing pump by pipeline and is followed by reaction cycle groove top, and the overflow outlet on described reaction column top is taken back by pipeline
Reaction cycle groove top, the outlet at bottom of reaction cycle groove is followed by four-way through valve and dosing pump, and the first via is by band valve
Pipeline is connected with bottom reaction column, and the second tunnel is connected to electrolysis cycle groove by the pipeline of band valve.
4. prepare the device of silver electrolysis silver nitrate solution as claimed in claim 3, it is characterized in that: the end of described reaction cycle groove
Portion outlet through valve and dosing pump be followed by four-way be additionally provided with by the pipeline of band valve take back mixing transhipment groove top the 3rd tunnel
Pipeline.
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| CN201610684022.3A CN106048660B (en) | 2016-08-18 | 2016-08-18 | Prepare the method and its device of silver-colored electrolysis silver nitrate solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216767A (en) * | 2023-03-29 | 2023-06-06 | 湖南海利高新技术产业集团有限公司 | Silver nitrate preparation method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51146389A (en) * | 1975-06-11 | 1976-12-15 | Fuji Photo Film Co Ltd | Process for production of silver nitrate |
| US4136157A (en) * | 1976-07-09 | 1979-01-23 | Fuji Photo Film Co., Ltd. | Method of preparing purified silver nitrate |
| US5000928A (en) * | 1986-03-17 | 1991-03-19 | Eastman Kodak Company | Preparation of ultra-pure silver nitrate |
| CN1073412A (en) * | 1992-11-04 | 1993-06-23 | 四川省环境保护科研监测所 | The pollution-free method for preparing silver nitrate solution |
| EP0568259A1 (en) * | 1992-04-30 | 1993-11-03 | Noranda Inc. | Process for making a silver nitrate solution |
| CN101575116A (en) * | 2009-06-02 | 2009-11-11 | 烟台招金励福贵金属股份有限公司 | Method for reducing nitrogen oxides during preparation of silver nitrate |
| CN101660173A (en) * | 2009-09-25 | 2010-03-03 | 阳谷祥光铜业有限公司 | Method for preparing silver nitrate solution for silver electrolysis and device thereof |
| CN102040240A (en) * | 2009-10-16 | 2011-05-04 | 中科铜都粉体新材料股份有限公司 | Method for producing high-purity silver nitrate |
-
2016
- 2016-08-18 CN CN201610684022.3A patent/CN106048660B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51146389A (en) * | 1975-06-11 | 1976-12-15 | Fuji Photo Film Co Ltd | Process for production of silver nitrate |
| US4136157A (en) * | 1976-07-09 | 1979-01-23 | Fuji Photo Film Co., Ltd. | Method of preparing purified silver nitrate |
| US5000928A (en) * | 1986-03-17 | 1991-03-19 | Eastman Kodak Company | Preparation of ultra-pure silver nitrate |
| EP0568259A1 (en) * | 1992-04-30 | 1993-11-03 | Noranda Inc. | Process for making a silver nitrate solution |
| CN1073412A (en) * | 1992-11-04 | 1993-06-23 | 四川省环境保护科研监测所 | The pollution-free method for preparing silver nitrate solution |
| CN101575116A (en) * | 2009-06-02 | 2009-11-11 | 烟台招金励福贵金属股份有限公司 | Method for reducing nitrogen oxides during preparation of silver nitrate |
| CN101660173A (en) * | 2009-09-25 | 2010-03-03 | 阳谷祥光铜业有限公司 | Method for preparing silver nitrate solution for silver electrolysis and device thereof |
| CN102040240A (en) * | 2009-10-16 | 2011-05-04 | 中科铜都粉体新材料股份有限公司 | Method for producing high-purity silver nitrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216767A (en) * | 2023-03-29 | 2023-06-06 | 湖南海利高新技术产业集团有限公司 | Silver nitrate preparation method and device |
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