CN105126854A - Catalyst for decomposing carbon monoxide in waste gas - Google Patents
Catalyst for decomposing carbon monoxide in waste gas Download PDFInfo
- Publication number
- CN105126854A CN105126854A CN201510492143.3A CN201510492143A CN105126854A CN 105126854 A CN105126854 A CN 105126854A CN 201510492143 A CN201510492143 A CN 201510492143A CN 105126854 A CN105126854 A CN 105126854A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carbon monoxide
- waste gas
- rotating speed
- mixed liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Catalysts (AREA)
Abstract
The present invention relates to a catalyst for decomposing carbon monoxide in waste gas, and belongs to the technical field of catalyst manufacturing. According to the present invention, the catalyst adopts oxidized active carbon as a carrier, the surface properties are changed through acid washing alkali soaking, the carrier is soaked with a nickel-containing impregnating solution to make the heavy metal nickel be attached on the carrier, hydrogen is introduced during the treatment process, and the effect of the catalyst is combined to make carbon monoxide be subjected to methanation so as to decompose the carbon monoxide; and the catalytic decomposition rate is high, the carbon monoxide can be rapidly decomposed, the catalyst can be recycled, the cost is saved, the catalytic product is clean, and no secondary pollution exists.
Description
Technical field
The present invention relates to the catalyst of carbon monoxide in a kind of waste gas decomposition, belong to catalyst manufacturing technology field.
Background technology
Carbon monoxide is one of the primary combustion product of causing death in fire, it is a kind of toxic gas, its toxicity is with human body hemoglobin affine, generate carboxyhemoglobin, it can hinder the conveying of oxygen in blood of human body, causes headache, collapse, the symptoms such as unconsciousness and muscle insufficiency of accommodation etc., causing death.
The method of traditional process carbon monoxide is mainly in the local rational ventilation that carbonomonoxide concentration is high, carbon monoxide is made to accelerate diffusion, or with spray form water dilution, dissolution of high-concentration carbon monoxide, but these disposal methods effects are unsatisfactory, still can cause residual, and treatment cycle is general all very long.
Summary of the invention
The technical problem that the present invention mainly solves: the method for current process carbon monoxide is in the high local rational ventilation of carbonomonoxide concentration, it is made to accelerate diffusion, or dilute with spray form water, the carbon monoxide of dissolution of high-concentration, but these traditional treatment method treatment effects are unsatisfactory, still can cause residual, the present situation that treatment cycle is general all very long, provide the catalyst of carbon monoxide in a kind of waste gas decomposition, this catalyst take magnesium oxide/absorbent charcoal as carrier, its surface characteristic is changed by pickling alkali bubble, carrier is soaked again with nickeliferous maceration extract, heavy metal nickel is made to be attached on carrier, and pass into hydrogen in processing procedure, the effect of combined catalyst allows the methanation of carbon monoxide, thus decomposition carbon monoxide.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) get 10 ~ 15g activated carbon powder, added in 25 ~ 30mL concentrated hydrochloric acid, stir formation mixed liquor, then add 10 ~ 15gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 1 ~ 2h in cold bath, move in 40 ~ 45 DEG C of temperature baths and continue oxidation 30 ~ 40min, slowly add in 180 ~ 200mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 90 ~ 98 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble;
(2) mixed liquor obtained above is filtered, and wash with deionization, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 10 ~ 15min, is placed on dry 5 ~ 6h in baking oven after being separated, set temperature is 60 ~ 80 DEG C, obtains oxidation activity carbon after oven dry;
(3) put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 1 ~ 2h, sieve after being cooled to room temperature and obtain 50 ~ 60 object particles;
(4) get 10 ~ 20g magnesium oxide/absorbent charcoal particle and 1 ~ 3g butyl titanate, dissolve with ethanol, vigorous stirring 20 ~ 30min, rotating speed is set to 800 ~ 900r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 70 ~ 80 DEG C of backflow 2 ~ 3h;
(5) the sediment deionized water obtained after upper step process is cleaned, put into muffle furnace, take out after processing 1 ~ 2h under 400 ~ 500 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon;
(6) nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, nitrogen radio-frequency frequency is 5 ~ 10MHz, spent acid is added subsequently in reaction bulb, slow stirring, rotating speed is 80 ~ 100r/min, adds the chromium nitrate solution of 0.2 ~ 0.5mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 500 ~ 600r/min, obtains maceration extract;
(7) be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion leaves standstill 20 ~ 30h, and put into baking oven after taking-up, set temperature 105 ~ 110 DEG C, is cooled to room temperature after oven dry, obtains a kind of the methanation of carbon monoxide catalyst.
Beneficial effect of the present invention:
(1) catalytic decomposition rate is high, energy fast decoupled carbon monoxide;
(2) catalyst can recycle, cost-saving;
(3) catalysate cleans, and does not have secondary pollution.
Detailed description of the invention
Get 10 ~ 15g activated carbon powder, added in 25 ~ 30mL concentrated hydrochloric acid, stir formation mixed liquor, then add 10 ~ 15gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 1 ~ 2h in cold bath, move in 40 ~ 45 DEG C of temperature baths and continue oxidation 30 ~ 40min, slowly add in 180 ~ 200mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 90 ~ 98 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble; Mixed liquor obtained above is filtered, and wash with deionization, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 10 ~ 15min, is placed on dry 5 ~ 6h in baking oven after being separated, set temperature is 60 ~ 80 DEG C, obtains oxidation activity carbon after oven dry; Put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 1 ~ 2h, sieve after being cooled to room temperature and obtain 50 ~ 60 object particles; Get 10 ~ 20g magnesium oxide/absorbent charcoal particle and 1 ~ 3g butyl titanate, dissolve with ethanol, vigorous stirring 20 ~ 30min, rotating speed is set to 800 ~ 900r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 70 ~ 80 DEG C of backflow 2 ~ 3h; The sediment deionized water obtained after upper step process is cleaned, puts into muffle furnace, take out after processing 1 ~ 2h under 400 ~ 500 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon; Nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, nitrogen radio-frequency frequency is 5 ~ 10MHz, spent acid is added subsequently in reaction bulb, slow stirring, rotating speed is 80 ~ 100r/min, adds the chromium nitrate solution of 0.2 ~ 0.5mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 500 ~ 600r/min, obtains maceration extract; Be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion leaves standstill 20 ~ 30h, and put into baking oven after taking-up, set temperature 105 ~ 110 DEG C, is cooled to room temperature after oven dry, obtains a kind of the methanation of carbon monoxide catalyst.
The application process of described catalyst is: the discharge duct this catalyst being put into waste gas groove, allow waste gas by this pipeline, and pass into hydrogen, under the effect of catalyst, carbon monoxide concentration after catalyst methane can be reduced to below 60ppm, reaches carbon monoxide in atmosphere concentration standard.
Get 10g activated carbon powder, added in 25mL concentrated hydrochloric acid, stir formation mixed liquor, then add 10gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 1h in cold bath, move in 40 DEG C of temperature baths and continue oxidation 30min, slowly add in 180mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 90 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble; Mixed liquor obtained above is filtered, and wash with deionization, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 10min, is placed on dry 5h in baking oven after being separated, set temperature is 60 DEG C, obtains oxidation activity carbon after oven dry; Put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 1h, sieve after being cooled to room temperature and obtain 50 object particles; Get 10g magnesium oxide/absorbent charcoal particle and 1g butyl titanate, dissolve with ethanol, vigorous stirring 20min, rotating speed is set to 800r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 70 DEG C of backflow 2h; The sediment deionized water obtained after upper step process is cleaned, puts into muffle furnace, take out after processing 1h under 400 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon; Nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, and nitrogen radio-frequency frequency is 5 ~ 10MHz, adds spent acid subsequently in reaction bulb, slow stirring, rotating speed is 80r/min, adds the chromium nitrate solution of 0.2mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 500r/min, obtains maceration extract; Be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion leaves standstill 20h, and put into baking oven after taking-up, set temperature 105 DEG C, is cooled to room temperature after oven dry, obtains a kind of the methanation of carbon monoxide catalyst.
The application process of described catalyst is: the discharge duct this catalyst being put into waste gas groove, allow waste gas by this pipeline, and pass into hydrogen, under the effect of catalyst, carbon monoxide concentration after catalyst methane can be reduced to 40ppm, reaches carbon monoxide in atmosphere concentration standard.
Get 13g activated carbon powder, added in 28mL concentrated hydrochloric acid, stir formation mixed liquor, then add 13gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 1.5h in cold bath, move in 43 DEG C of temperature baths and continue oxidation 35min, slowly add in 190mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 95 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble; Mixed liquor obtained above is filtered, and wash with deionization, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 12min, is placed on dry 5h in baking oven after being separated, set temperature is 70 DEG C, obtains oxidation activity carbon after oven dry; Put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 1h, sieve after being cooled to room temperature and obtain 55 object particles; Get 15g magnesium oxide/absorbent charcoal particle and 2g butyl titanate, dissolve with ethanol, vigorous stirring 25min, rotating speed is set to 850r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 75 DEG C of backflow 2h; The sediment deionized water obtained after upper step process is cleaned, puts into muffle furnace, take out after processing 1.5h under 450 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon; Nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, and nitrogen radio-frequency frequency is 8MHz, adds spent acid subsequently in reaction bulb, slow stirring, rotating speed is 90r/min, adds the chromium nitrate solution of 0.4mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 550r/min, obtains maceration extract; Be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion leaves standstill 25h, and put into baking oven after taking-up, set temperature 108 DEG C, is cooled to room temperature after oven dry, obtains a kind of the methanation of carbon monoxide catalyst.
The application process of described catalyst is: the discharge duct this catalyst being put into waste gas groove, allow waste gas by this pipeline, and pass into hydrogen, under the effect of catalyst, carbon monoxide concentration after catalyst methane can be reduced to 50ppm, reaches carbon monoxide in atmosphere concentration standard.
Get 15g activated carbon powder, added in 30mL concentrated hydrochloric acid, stir formation mixed liquor, then add 15gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 2h in cold bath, move in 45 DEG C of temperature baths and continue oxidation 40min, slowly add in 200mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 98 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble; Mixed liquor obtained above is filtered, and wash with deionization, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 15min, is placed on dry 6h in baking oven after being separated, set temperature is 80 DEG C, obtains oxidation activity carbon after oven dry; Put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 2h, sieve after being cooled to room temperature and obtain 60 object particles; Get 20g magnesium oxide/absorbent charcoal particle and 3g butyl titanate, dissolve with ethanol, vigorous stirring 30min, rotating speed is set to 900r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 80 DEG C of backflow 3h; The sediment deionized water obtained after upper step process is cleaned, puts into muffle furnace, take out after processing 2h under 500 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon; Nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, and nitrogen radio-frequency frequency is 10MHz, adds spent acid subsequently in reaction bulb, slow stirring, rotating speed is 100r/min, adds the chromium nitrate solution of 0.5mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 600r/min, obtains maceration extract; Be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion leaves standstill 30h, and put into baking oven after taking-up, set temperature 110 DEG C, is cooled to room temperature after oven dry, obtains a kind of the methanation of carbon monoxide catalyst.
The application process of described catalyst is: the discharge duct this catalyst being put into waste gas groove, allow waste gas by this pipeline, and pass into hydrogen, under the effect of catalyst, carbon monoxide concentration after catalyst methane can be reduced to below 55ppm, reaches carbon monoxide in atmosphere concentration standard.
Claims (2)
1. the catalyst of carbon monoxide in waste gas decomposition, is characterized in that concrete preparation process is:
(1) get 10 ~ 15g activated carbon powder, added in 25 ~ 30mL concentrated hydrochloric acid, stir formation mixed liquor, then add 10 ~ 15gKMnO in mixed liquor
4make it fully dissolve, after being oxidized 1 ~ 2h in cold bath, move in 40 ~ 45 DEG C of temperature baths and continue oxidation 30 ~ 40min, slowly add in 180 ~ 200mL deionized water by the mixed liquor after oxidation subsequently, set temperature is 90 ~ 98 DEG C, adds appropriate H after stirring
2o
2until do not produce bubble;
(2) mixed liquor obtained above is filtered, and wash by deionized water, obtain the turbid liquid of magnesium oxide/absorbent charcoal, again turbid for magnesium oxide/absorbent charcoal liquid is put into centrifuge and carry out centrifugation, rotating speed is 3000r/min, and disengaging time is 10 ~ 15min, is placed on dry 5 ~ 6h in baking oven after being separated, set temperature is 60 ~ 80 DEG C, obtains oxidation activity carbon after oven dry;
(3) put into ultrasonic wave separating apparatus after being added water by magnesium oxide/absorbent charcoal, make it fully break up, after suction filtration, put into high temperature furnace, at 800 DEG C, calcine 1 ~ 2h, sieve after being cooled to room temperature and obtain 30 ~ 40 object particles;
(4) get 10 ~ 20g magnesium oxide/absorbent charcoal particle and 1 ~ 3g butyl titanate, dissolve with ethanol, vigorous stirring 20 ~ 30min, rotating speed is set to 800 ~ 900r/min, stirs after terminating and adds dilute sulfuric acid, is warming up to 70 ~ 80 DEG C of backflow 2 ~ 3h;
(5) the sediment deionized water obtained after upper step process is cleaned, put into muffle furnace, take out after processing 1 ~ 2h under 400 ~ 500 DEG C of high temperature, be cooled to room temperature, obtain oxidation activity high-area carbon;
(6) nickel nitrate nitrogen radio-frequency is resolved into nickel oxide, nitrogen radio-frequency frequency is 5 ~ 10MHz, spent acid is added subsequently in reaction bulb, slow stirring, rotating speed is 80 ~ 100r/min, adds the chromium nitrate solution of 0.2 ~ 0.5mol/L after having stirred again, magnetic agitation 5 hours, rotating speed is 500 ~ 600r/min, obtains maceration extract;
(7) be immersed in maceration extract by oxidation activity high-area carbon, shaking table concussion 20 ~ 30h, put into baking oven after taking-up, set temperature 105 ~ 110 DEG C, is cooled to room temperature after oven dry, obtains the catalyst of carbon monoxide in a kind of waste gas decomposition.
2. a kind of catalyst processing carbon monoxide in waste gas according to claim 1, it is characterized in that: the application process of described catalyst is: the discharge duct this catalyst being put into waste gas groove, allow waste gas by this pipeline, and pass into hydrogen, under the effect of catalyst, carbon monoxide concentration after catalyst methane is reduced to below 60ppm, reaches carbon monoxide in atmosphere concentration standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492143.3A CN105126854A (en) | 2015-08-12 | 2015-08-12 | Catalyst for decomposing carbon monoxide in waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492143.3A CN105126854A (en) | 2015-08-12 | 2015-08-12 | Catalyst for decomposing carbon monoxide in waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105126854A true CN105126854A (en) | 2015-12-09 |
Family
ID=54712624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510492143.3A Withdrawn CN105126854A (en) | 2015-08-12 | 2015-08-12 | Catalyst for decomposing carbon monoxide in waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105126854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512944A (en) * | 2016-12-06 | 2017-03-22 | 福建师范大学 | Production method of oxidized wood active carbon for effectively adsorbing carbon dioxide |
| CN111920078A (en) * | 2016-07-27 | 2020-11-13 | 湖南中烟工业有限责任公司 | Modified activated carbon |
-
2015
- 2015-08-12 CN CN201510492143.3A patent/CN105126854A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920078A (en) * | 2016-07-27 | 2020-11-13 | 湖南中烟工业有限责任公司 | Modified activated carbon |
| CN106512944A (en) * | 2016-12-06 | 2017-03-22 | 福建师范大学 | Production method of oxidized wood active carbon for effectively adsorbing carbon dioxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107012329B (en) | A kind of method of the synchronous mercury recycled in useless mercury catalyst and regenerated carbon | |
| CN100453176C (en) | Method for reactivating deactivated palladium/carbon catalyst | |
| JP2011510806A (en) | Method for recovering noble metals from used and / or voided catalyst supports | |
| CN105126854A (en) | Catalyst for decomposing carbon monoxide in waste gas | |
| CN110026203A (en) | Utilize the method for rare-earth tailing preparation SCR denitration | |
| CN103805774B (en) | A kind of method of low carbon number organism collaborative SCM pyrolusite | |
| CN111653846B (en) | Treatment method of waste lithium iron phosphate battery | |
| CN105753907B (en) | A kind of synthetic method of the metal organic framework containing unsaturated coordination mixed valence iron center | |
| CN101844793B (en) | Production technique of high-activity plating-grade copper oxide | |
| CN107022682A (en) | A kind of method of the useless mercuric chloride catalyst of microwave and ultrasound collaboration processing | |
| CN104525114B (en) | A kind of method that modified activated carbon handles Iso-Propylalcohol wastewater | |
| CN115970666A (en) | Activated carbon regeneration process | |
| CN105944688B (en) | A kind of preparation method and heavy metal in waste water minimizing technology of modified pineapple peel magnetic adsorptive material | |
| CN101775077B (en) | Method for extracting polysaccharides from fishbone of hairtail | |
| CN106552644B (en) | Ozone catalyst for difficult biochemical wastewater and preparation method thereof | |
| CN106902756A (en) | A kind of compound adsorbent for removing nucleic plutonium, its preparation method and application | |
| CN106423206A (en) | Supported foamy copper catalyst used for removing dimethyl formamide through oxidation of supercritical water | |
| CN107235570A (en) | A kind of cold rolling acid waste water is up to standard and method and system of reuse | |
| CN111575495B (en) | Method for extracting vanadium and chromium from vanadium slag | |
| CN104028122B (en) | The preparation method of GMA-TEPA/Kynoar anion-exchange membrane | |
| CN205974105U (en) | Lose liquid waste liquid treatment device a little | |
| CN101822987B (en) | Method for modifying active carbon for catalytically decomposing hydrogen iodide by adding active metal | |
| CN106222440A (en) | The recovery method of palladium metal in a kind of useless palladium carbon catalyst | |
| CN113698010B (en) | Novel method for detoxifying cyanide cooperatively mediated by superoxide radical and hydroxyl radical | |
| CN111162272A (en) | Regeneration method of nickel cobalt lithium manganate positive electrode material of waste lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151209 |
|
| WW01 | Invention patent application withdrawn after publication |