CN101164902A - Continuous producing technique and device for preparing cobaltosic oxide powder by spray roasting - Google Patents
Continuous producing technique and device for preparing cobaltosic oxide powder by spray roasting Download PDFInfo
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- CN101164902A CN101164902A CNA2007101572296A CN200710157229A CN101164902A CN 101164902 A CN101164902 A CN 101164902A CN A2007101572296 A CNA2007101572296 A CN A2007101572296A CN 200710157229 A CN200710157229 A CN 200710157229A CN 101164902 A CN101164902 A CN 101164902A
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Abstract
This invention relates to the technique for preparing tri-cobalt tetroxide and recovering hydrochloric acid, particularly the process and equipment for continuously producing the powder of tri-cobalt tetroxide by using pneumatic raw material feeding. The process comprises: (1), the waste acid, after being dust extraction, is pumped into the pre-concentrator; (2), pneumatic feeding of said acid; (3), controlling the temperature of the heating area of the roasting furnace; (4), recovering the powder of tri-cobalt tetroxide; (5), the gas entered the preconcentrator being formed into hydrochloric acid; (6), the waste gas from the absorption tower after being secondary absorbed, separated and washed is discharged. The equipment is composed of: the original equipment and newly equiped equipments, such as: dust extractor, pneumatic feeder, on-line cleaning device, combustion-aid device, back-blow flow-aid device, chlorine-remover, air-purifier and secondary absorption tower. Advantages are: stable reaction temperature, increased equipment utilization rate and no environmental pollution.
Description
Technical field
The present invention relates to prepare the continuous production processes and the equipment thereof of cobaltosic oxide powder and recovery hydrochloric acid technical field, particularly a kind of preparing cobaltosic oxide powder by spray roasting.
Background technology
In the preparation process of cobalt oxide, can produce the cobalt compounds of certain density HCl and 140g/L.In preparation process, the ratio regular meeting of HCl progressively increases, and behind the state of reaching capacity, dissolving will stop.In order to keep proceeding of dissolution process, cobalt oxide among the HCl should be extracted, simultaneously acid strength is reduced, need a cover preparation technology and an equipment, the HCl solution that will contain aforementioned proportion is delivered in the preparation facilities, generates tricobalt tetroxide, has also obtained concentration simultaneously and has been about 15% hydrochloric acid, turn back in the dissolution system recycling spent acid solution again.Its process is: the cobalt oxide solution that will contain certain proportion concentration and content is collected in the spent acid jar, sends into preconcentrator with the spent acid pump through waste acid filter, uses the pneumatic adjusting valve automatic control flow.Spent acid is delivered to the preconcentrator top by the preconcentrator recycle pump and is sprayed.Carry out direct heat exchange with the furnace gas from stoving oven, the part moisture content in the spent acid is evaporated, spent acid solution is concentrated.Spent acid solution after concentrating is delivered to the stoving oven top by the stoving oven feeding pump through waste acid filter, advances in the stoving oven through spray boom, nozzles spray again.
The stoving oven body is a box hat, the liner acid-resistant refractory brick.Be tangent line and arrange burner on the stoving oven body, incendiary heat is dried the pre-concentration acid droplet from nozzle, and in the heating region of stoving oven, resolves into Co
3O
4And HCl.Solid Co
3O
4Particle drops in the stoving oven lower taper body with powder type, and emits with a rotary valve.An oxide blocks crusher is installed on rotary valve top.
Stoving oven gas is made up of combustion exhaust, water vapour and hydrogen chloride gas, left stoving oven from the top of stoving oven and by whirlwind divide detailed from device with contained Co
3O
4The powder major part is separated, and isolated oxide compound is by the rotary valve discharging and turn back to stoving oven.Roasting gas enters preconcentrator then, and in this, high-temperature gas directly contacts with recycle acid, and only residual small amounts thing in cooling and the purge gas, and enter in the absorption tower.
Rinse water from absorb cat head and spray into and with the upstream countercurrent flow, absorb hydrogen chloride in gas and form regeneration hydrochloric acid and go forward side by side into the regeneration hydrochloric acid tank.
Also comprise equipment such as washing tower, gas-liquid separator, exhaust gas fan, cobaltosic oxide powder pneumatic conveyor system in the production line.
There are following defective in existing cobaltosic oxide powder production technique and device:
1, stoving oven is established the throat temperature control device, can only control throat temperature, and the chamber temperature that regenerative process plays a crucial role is not controlled;
2, logistics is not smooth in the stoving oven, causes roasting efficient not high;
3, therefore the easy oxidation of ordinary steel Q235B steel used of stoving oven body of heater can pollute furnace charge;
4, complete assembly is worked under negative pressure state, makes regenerating acid and institute's discharge tail gas dustiness exceed standard;
5, through the waste acid filter feed, the spent acid pump is subjected to mechanical wear and corrosion to preconcentrator easily, thereby causes the fluctuation of flow and pressure with the spent acid pump;
6, stoving oven feed pipeline can form xln in the course of the work on tube wall, must regularly clear numerous, and the clear numerous maintenance work of this pipeline is very difficult, workload is big, pipeline must be disassembled and uses artificial pipe blow-through, and is time-consuming, take material.
Therefore must be improved.
Summary of the invention
The object of the present invention is to provide a kind of can guarantee quality product, stable technical process, discharging less, the continuous production processes of the effective preparing cobaltosic oxide powder by spray roasting of control.
Another object of the present invention is to provide a kind of equipment that is used for above-mentioned technology.
According to the continuous production processes of preparing cobaltosic oxide powder by spray roasting of the present invention, comprise spent acid solution collection, filtration, pre-concentration, oven dry, spent acid solution resolves into Co in the heating region of stoving oven
3O
4With HCl, solid Co
3O
4Particle enters preconcentrator with powder type recovery, roasting gas, in this, high-temperature gas directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower, rinse water absorb hydrogen chloride in gas and form regeneration hydrochloric acid, gas discharging after smoke evacuation drop separation, washing is characterized in that whole technological process comprises the following steps:
1) send into preconcentrator again after sending into preconcentrator from the spent acid of spent acid jar through filter or catching dirt through dust catcher,
2) by Pneumatic feeding device filtered spent acid is sent in the stoving oven,
3) utilize the temperature-control device that is located at the stoving oven middle part that the temperature in the heating region of stoving oven is controlled at 600-1300 ℃, the furnace roof negative pressure is controlled at 280 MPa,
4) spent acid is at solid solid Co after the chlorine purifier dechlorination of roasting kiln roasting generation
3O
4Particle reclaims with powder type, and roasting gas enters preconcentrator after catching dirt through dust catcher again,
5) the roasting gas that enters preconcentrator directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower, and rinse water absorb hydrogen chloride in gas and form the hydrochloric acid of regenerating,
6) from the absorption tower expellant gas through discharging through smoke evacuation drop separation, washing back again behind the two-level absorption tower.
Temperature in the heating region of described stoving oven is controlled at 600 ℃, and the furnace roof negative pressure is controlled at 280MPa.
Temperature in the heating region of described stoving oven is controlled at 1300 ℃, and the furnace roof negative pressure is controlled at 280MPa.
A kind of equipment that is used for the continuous production processes of described preparing cobaltosic oxide powder by spray roasting, comprise oxide blocks crusher, cobaltosic oxide powder pneumatic conveyor system, absorption tower, smoke exhaust fan, washing tower, rinse water water supply installation, regeneration hydrochloric acid tank, gas-liquid separator, chimney, the PLC control device of spent acid jar, waste acid filter, preconcentrator, pneumatic adjusting valve, stoving oven and the furnace roof flusher thereof of collecting spent acid solution, the burner that on the stoving oven body, is the tangent line layout, rotary valve, stoving oven bottom, it is characterized in that:
1) dust catcher is set between described spent acid jar and preconcentrator, the roasting gas piping of stoving oven dust catcher therewith is connected,
2) with combustion air pipeline that described stoving oven is connected on air purifier is set,
3) chlorine purifier is set between described oxide blocks crusher and cobaltosic oxide powder pneumatic conveyor system,
4) between described absorption tower and smoke exhaust fan, two-level absorption tower is set.
Heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus that is connected with described PLC control device.
The lower end of described stoving oven is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow gas inlet that is located at the stoving oven lower end, one end back blowing flow gas inlet therewith links to each other and blowback airline that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline are formed.
The top of described stoving oven is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet links to each other and the combustion-supporting airline of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this combustion-supporting airline of heating are formed.
Described stoving oven is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by the clean-out system circulation tank, the feeding pump that is connected of clean-out system circulation tank therewith, this feeding pump is connected with stoving oven feed pipeline, there is a new water lines to be connected with stoving oven feed pipeline, have a scavenging solution return line one end to be connected the end of stoving oven feed pipeline, the other end is connected with the clean-out system circulation tank, forms an online cleaning system of circulation.
Described stoving oven is provided with Pneumatic feeding device, this Pneumatic feeding device is by the compressed air inlet pipe that is connected with described spent acid jar, the air filter that is located on this compressed air inlet pipe is formed, and described spent acid jar directly is connected with stoving oven feed pipeline.
Described clean-out system circulation tank directly is connected with described spent acid jar.
The furnace shell of described stoving oven is the stainless steel furnace shell.
Continuous production processes and equipment thereof according to preparing cobaltosic oxide powder by spray roasting of the present invention have following advantage:
1, owing to be provided with the furnace temperature detection control apparatus, can be controlled the direct Heating temperature that influences the heating zone, stoving oven middle part of roasting efficient and effect in heating zone, stoving oven middle part.Owing to be provided with the combustion-supporting warming apparatus in top, make that the temperature of reaction of stoving oven is more stable simultaneously, enlarged the regulation range of temperature of reaction.
2, owing to a dust catcher is being set between spent acid jar and the preconcentrator and on the combustion air pipeline, air purifier is being set, absorbed the grit in spent acid stoste and the stoving oven furnace gas, realize final dusting, made final exhaust gas discharged dustiness reach emission standard.
3,, make that the cl content in the gas of emission abatement reaches emission standard because a chlorine purifier is set between oxide blocks crusher and cobaltosic oxide powder pneumatic conveyor system.
4, owing between one of absorption tower and smoke exhaust fan, two-level absorption tower is set, realize the secondary absorption, improved specific absorption, also further reduced the cl content in the discharging furnace gas.
5, owing to be provided with the back blowing flow device in the lower end of stoving oven, the top is provided with combustion-supporting warming apparatus, make the Flow of Goods and Materials in the stoving oven more smooth and easy, make the furnace gas cooling of furnace roof, funnel temperature is controlled at about 450 ℃, and the method for control furnace temperature is more complete, and reaction in furnace is more complete, efficient is higher, better effects if.
6, be provided with stoving oven feed pipeline on-line cleaning device, at any time can carry out on-line cleaning to stoving oven feed pipeline, not only improved the plant factor of stoving oven, and reduced clear numerous maintenance load of pipeline and relevant maintenance cost, can not produce and pollute environment.
7, owing to change the feeding pump feed into pneumatic feeding, stoving oven can be worked continuously, improved the stability of feed, but also can give supplemental oxygen in the stoving oven, thereby further improved the plant factor and the working efficiency of stoving oven.
8, because the furnace shell of stoving oven is the stainless steel furnace shell, therefore can avoid polluting furnace charge because of furnace shell is corroded.
Description of drawings
Fig. 1 is a processing unit schema of the present invention.
Fig. 2 is the structural representation of back blowing flow device of the present invention and combustion-supporting warming apparatus.
Fig. 3 is the structural representation of stoving oven feed pipeline on-line cleaning device of the present invention.
Fig. 4 is the structural representation of Pneumatic feeding device of the present invention.
Embodiment
The embodiment given below in conjunction with accompanying drawing further specifies the specific embodiment of the present invention.
As shown in Figure 1, according to the continuous production processes of preparing cobaltosic oxide powder by spray roasting of the present invention, comprise spent acid solution collection, filtration, pre-concentration, oven dry, spent acid solution resolves into Co in the heating region of stoving oven
3O
4With HCl, solid Co
3O
4Particle enters preconcentrator 17 with powder type recovery, roasting gas, in this, high-temperature gas directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower 14, rinse water absorb hydrogen chloride in gas and form regeneration hydrochloric acid, gas discharges after smoke evacuation, drop separation, washing, it is characterized in that whole technological process comprises the following steps:
1) send into preconcentrator 17 again after sending into preconcentrator 17 from the spent acid of spent acid jar 15 through filter 16 or catching dirt through dust catcher 18,
2) by Pneumatic feeding device 19 filtered spent acid is sent in the stoving oven 24,
3) utilize the temperature-control device that is located at stoving oven 24 middle parts that the temperature in the heating region of stoving oven is controlled at 600-1300 ℃, the furnace roof negative pressure is controlled at 280MPa,
4) spent acid solid solid Co after chlorine purifier 25 dechlorinations that roasting generates in stoving oven 24
3O
4Particle reclaims with powder type, and roasting gas enters preconcentrator 17 after catching dirt through dust catcher 18 again,
5) the roasting gas that enters preconcentrator 17 directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower 14, and rinse water absorb hydrogen chloride in gas and form the hydrochloric acid of regenerating,
6) from absorption tower 14 expellant gas behind two-level absorption tower 11 again through smoke exhaust fan 10, droplet separator 9, three washings after chimney 29 dischargings.
Temperature in the heating region of described stoving oven is controlled at 600 ℃, and the furnace roof negative pressure is controlled at 280MPa.
Temperature in the heating region of described stoving oven 24 is controlled at 1300 ℃, and the furnace roof negative pressure is controlled at 280MPa.
As shown in Figure 1, a kind of equipment that is used for the continuous production processes of described preparing cobaltosic oxide powder by spray roasting, comprise the spent acid jar 15 of collecting spent acid, waste acid filter 16, preconcentrator 17, stoving oven 24 and furnace roof flusher thereof, on the stoving oven body, be the burner that tangent line is arranged, rotary valve, the oxide blocks crusher (not shown) of stoving oven bottom, cobaltosic oxide powder pneumatic transport gathering system 27, absorption tower 14, smoke exhaust fan 10, washing tower 8,5,2, rinse water water supply installation 6,3, regeneration hydrochloric acid tank 13, droplet separator 9, chimney 29, the PLC control device is characterized in that:
1) dust catcher 18 is set between described spent acid jar 15 and preconcentrator 17, the roasting gas piping 23 of stoving oven 24 dust catcher 18 therewith is connected,
2) with combustion air pipeline 20 that described stoving oven 24 is connected on air purifier 21 is set,
3) between described oxide blocks crusher and cobaltosic oxide powder pneumatic transport gathering system 27, a chlorine purifier 25 is set,
4) between one of described absorption tower 14 and smoke exhaust fan 10, two-level absorption tower 11 is set.
As shown in Figure 1, de-salted water pipeline 1 is washed tower 2 with three numerous and is connected, rinse water water supply installation 3,6 is connected with strainer 4,7 respectively, strainer 4,7 is washed tower 5 with the secondary numerous respectively, a numerous is washed tower 8 and is connected, the acid tube road 12 of sending of regeneration hydrochloric acid tank 13 is connected with pickling lines, cobaltosic oxide powder pneumatic transport gathering system 27 is connected with cobaltosic oxide powder packing plant 28 with fly-ash separator 26 respectively, gas line 22 is connected with stoving oven 24, and three numerous are washed tower 2 and are connected with chimney 29.
Heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus (not shown) that is connected with described PLC control device.
As shown in Figure 2, the lower end of described stoving oven 24 is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow gas inlet 243 that is located at the stoving oven lower end, one end back blowing flow gas inlet 243 therewith links to each other and blowback airline 244 that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline 244 are formed.
As shown in Figure 2, the top of described stoving oven 24 is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet 240 of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet 240 links to each other and the combustion-supporting airline 241 of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve 242 that are located on this combustion-supporting airline 241 of heating are formed.
As shown in Figure 3, described stoving oven 24 is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by clean-out system circulation tank 248, the feeding pump 249 that is connected of clean-out system circulation tank 248 therewith, this feeding pump 249 is connected with stoving oven feed pipeline 245, there is a new water lines 246 to be connected with stoving oven feed pipeline 245, one scavenging solution return line, 247 1 ends are connected the end of stoving oven feed pipeline 245, the other end is connected with clean-out system circulation tank 248, forms an online cleaning system of circulation.
As shown in Figure 4, described stoving oven is provided with Pneumatic feeding device, this Pneumatic feeding device is by the compressed air inlet pipe 191 that is connected with described spent acid jar 15, the air filter 193 and the control valve 192 that are located on this compressed air inlet pipe 191 are formed, and described spent acid jar is connected with stoving oven feed pipeline 245 through 15 preconcentrators 17 and/or dust catcher 18 (see figure 1)s.
As shown in Figure 4, described clean-out system circulation tank 248 directly is connected with described spent acid jar 15.
The furnace shell of described stoving oven 24 is the stainless steel furnace shell.
The continuous production processes of preparing cobaltosic oxide powder by spray roasting of the present invention and equipment thereof have following advantage: the temperature of reaction of stoving oven is more stable, has enlarged the regulation range of temperature of reaction; Exhaust gas discharged reaches emission standard; Improved the plant factor of stoving oven; Can not produce and pollute environment.
Claims (10)
1. the continuous production processes of a preparing cobaltosic oxide powder by spray roasting comprises spent acid solution collection, filtration, pre-concentration, oven dry, spent acid solution resolves into Co in the heating region of stoving oven
3O
4With HCl, solid Co
3O
4Particle enters preconcentrator with powder type recovery, roasting gas, in this, high-temperature gas directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower, rinse water absorb hydrogen chloride in gas and form regeneration hydrochloric acid, gas discharging after smoke evacuation drop separation, washing is characterized in that whole technological process comprises the following steps:
1) send into preconcentrator again after sending into preconcentrator from the spent acid of spent acid jar through filter or catching dirt through dust catcher,
2) by Pneumatic feeding device filtered spent acid is sent in the stoving oven,
3) utilize the temperature-control device that is located at the stoving oven middle part that the temperature in the heating region of stoving oven is controlled at 600-1300 ℃, the furnace roof negative pressure is controlled at 280MPa,
4) spent acid reclaims with powder type at solid solid cobaltosic oxide powder particle after the chlorine purifier dechlorination that the roasting kiln roasting generates, and roasting gas enters preconcentrator after catching dirt through dust catcher again,
5) the roasting gas that enters preconcentrator directly contacts with recycle acid, and cooling and purge gas enter in the absorption tower, and rinse water absorb hydrogen chloride in gas and form the hydrochloric acid of regenerating,
6) from the absorption tower expellant gas through discharging through smoke evacuation drop separation, washing back again behind the two-level absorption tower.
2. the continuous production processes of preparing cobaltosic oxide powder by spray roasting according to claim 1 is characterized in that the interior temperature of heating region of described stoving oven is controlled at 600 ℃, and the furnace roof negative pressure is controlled at 280MPa.
3. the continuous production processes of preparing cobaltosic oxide powder by spray roasting according to claim 1 is characterized in that the interior temperature of heating region of described stoving oven is controlled at 1300 ℃, and the furnace roof negative pressure is controlled at 280MPa.
4. equipment that is used for the continuous production processes of the described preparing cobaltosic oxide powder by spray roasting of claim 1, comprise oxide blocks crusher, cobaltosic oxide powder pneumatic conveyor system, absorption tower, smoke exhaust fan, washing tower, rinse water water supply installation, regeneration hydrochloric acid tank, gas-liquid separator, the PLC control device of spent acid jar, waste acid filter, preconcentrator, pneumatic adjusting valve, stoving oven and the furnace roof flusher thereof of collecting spent acid, the burner that on the stoving oven body, is the tangent line layout, rotary valve, stoving oven bottom, it is characterized in that:
1) dust catcher is set between described spent acid jar and preconcentrator, the roasting gas piping of stoving oven dust catcher therewith is connected,
2) with combustion air pipeline that described stoving oven is connected on air purifier is set,
3) chlorine purifier is set between described oxide blocks crusher and cobaltosic oxide powder pneumatic conveyor system,
4) between one of described absorption tower and smoke exhaust fan, two-level absorption tower is set.
5. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4 is characterized in that heating zone, described stoving oven middle part is provided with the furnace temperature detection control apparatus that is connected with described PLC control device.
6. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4, the lower end that it is characterized in that described stoving oven is provided with the back blowing flow device, this back blowing flow device is by the back blowing flow gas inlet that is located at the stoving oven lower end, one end back blowing flow gas inlet therewith links to each other and blowback airline that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this blowback airline are formed.
7. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4, the top that it is characterized in that described stoving oven is provided with combustion-supporting warming apparatus, this combustion-supporting warming apparatus is by the combustion-supporting gas inlet of heating that is located at the stoving oven top, one end is combustion-supporting therewith heats that gas inlet links to each other and the combustion-supporting airline of heating that the other end is connected with compression sky source, and the air pressure, the flow control valve that are located on this combustion-supporting airline of heating are formed.
8. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4, it is characterized in that described stoving oven is provided with stoving oven feed pipeline on-line cleaning device, this stoving oven feed pipeline on-line cleaning device is by the clean-out system circulation tank, the feeding pump that is connected of clean-out system circulation tank therewith, this feeding pump is connected with stoving oven feed pipeline, there is a new water lines to be connected with stoving oven feed pipeline, one scavenging solution return line, one end is connected the end of stoving oven feed pipeline, the other end is connected with the clean-out system circulation tank, forms an online cleaning system of circulation.
9. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4, it is characterized in that described stoving oven is provided with Pneumatic feeding device, this Pneumatic feeding device is by the compressed air inlet pipe that is connected with described spent acid jar, the air filter that is located on this compressed air inlet pipe is formed, described spent acid jar directly is connected with stoving oven feed pipeline, perhaps, described clean-out system circulation tank directly is connected with described spent acid jar.
10. the equipment of preparing cobaltosic oxide powder by spray roasting according to claim 4, the furnace shell that it is characterized in that described stoving oven is the stainless steel furnace shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101572296A CN101164902A (en) | 2007-09-30 | 2007-09-30 | Continuous producing technique and device for preparing cobaltosic oxide powder by spray roasting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101572296A CN101164902A (en) | 2007-09-30 | 2007-09-30 | Continuous producing technique and device for preparing cobaltosic oxide powder by spray roasting |
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| CN101164902A true CN101164902A (en) | 2008-04-23 |
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| CNA2007101572296A Pending CN101164902A (en) | 2007-09-30 | 2007-09-30 | Continuous producing technique and device for preparing cobaltosic oxide powder by spray roasting |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058288A (en) * | 2013-02-22 | 2013-04-24 | 赫东波 | Process and equipment for preparing nickel oxide product and recovering hydrochloric acid through nickel chloride solution |
| CN103086443A (en) * | 2013-02-22 | 2013-05-08 | 赫东波 | Equipment for preparing nickel oxide product from nickel chloride solution and recovering hydrochloric acid |
| CN103112905A (en) * | 2013-02-22 | 2013-05-22 | 赫东波 | Circulation tank pump sealing water recycling device in nickel oxide preparation equipment |
| CN106017093A (en) * | 2016-05-30 | 2016-10-12 | 内蒙古科技大学 | Roasting device used for preparing rare-earth oxides |
| CN106587172A (en) * | 2015-10-14 | 2017-04-26 | 金昌鑫盛源金属材料有限公司 | Production process and production device of power battery cathode ternary oxide |
| CN107128980A (en) * | 2017-06-27 | 2017-09-05 | 荆门市格林美新材料有限公司 | The fast preparation method and system of a kind of cobaltosic oxide |
| CN110526303A (en) * | 2019-08-14 | 2019-12-03 | 成都益志科技有限责任公司 | A kind of system and its production technology using spray roasting production cobaltosic oxide |
-
2007
- 2007-09-30 CN CNA2007101572296A patent/CN101164902A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058288A (en) * | 2013-02-22 | 2013-04-24 | 赫东波 | Process and equipment for preparing nickel oxide product and recovering hydrochloric acid through nickel chloride solution |
| CN103086443A (en) * | 2013-02-22 | 2013-05-08 | 赫东波 | Equipment for preparing nickel oxide product from nickel chloride solution and recovering hydrochloric acid |
| CN103112905A (en) * | 2013-02-22 | 2013-05-22 | 赫东波 | Circulation tank pump sealing water recycling device in nickel oxide preparation equipment |
| CN106587172A (en) * | 2015-10-14 | 2017-04-26 | 金昌鑫盛源金属材料有限公司 | Production process and production device of power battery cathode ternary oxide |
| CN106017093A (en) * | 2016-05-30 | 2016-10-12 | 内蒙古科技大学 | Roasting device used for preparing rare-earth oxides |
| CN106017093B (en) * | 2016-05-30 | 2018-02-27 | 内蒙古科技大学 | For preparing the calciner of rare earth oxide |
| CN107128980A (en) * | 2017-06-27 | 2017-09-05 | 荆门市格林美新材料有限公司 | The fast preparation method and system of a kind of cobaltosic oxide |
| CN110526303A (en) * | 2019-08-14 | 2019-12-03 | 成都益志科技有限责任公司 | A kind of system and its production technology using spray roasting production cobaltosic oxide |
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