CN107384507A - A kind of preparation method of oxygen carrier barium ferrite - Google Patents
A kind of preparation method of oxygen carrier barium ferrite Download PDFInfo
- Publication number
- CN107384507A CN107384507A CN201710838453.5A CN201710838453A CN107384507A CN 107384507 A CN107384507 A CN 107384507A CN 201710838453 A CN201710838453 A CN 201710838453A CN 107384507 A CN107384507 A CN 107384507A
- Authority
- CN
- China
- Prior art keywords
- barium ferrite
- oxygen carrier
- preparation
- aqueous solution
- gel
- 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.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000001301 oxygen Substances 0.000 title claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 30
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 25
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007864 aqueous solution Substances 0.000 claims abstract description 19
- 239000008139 complexing agent Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 10
- 150000001768 cations Chemical class 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- XDFCIPNJCBUZJN-UHFFFAOYSA-N barium(2+) Chemical compound [Ba+2] XDFCIPNJCBUZJN-UHFFFAOYSA-N 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 3
- 229960001484 edetic acid Drugs 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 235000005979 Citrus limon Nutrition 0.000 claims 2
- 244000248349 Citrus limon Species 0.000 claims 1
- 244000131522 Citrus pyriformis Species 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 5
- 229910021645 metal ion Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000009767 auto-combustion synthesis reaction Methods 0.000 abstract description 2
- 230000000536 complexating effect Effects 0.000 abstract description 2
- 230000002269 spontaneous effect Effects 0.000 abstract 2
- 238000009841 combustion method Methods 0.000 abstract 1
- 238000005373 pervaporation Methods 0.000 abstract 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 4
- 238000001027 hydrothermal synthesis Methods 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 229910002779 BaFeO3 Inorganic materials 0.000 description 3
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0081—Mixed oxides or hydroxides containing iron in unusual valence state [IV, V, VI]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention discloses a kind of preparation side of oxygen carrier barium ferrite, it is combined particular by the microwave induced combustion method of sol-gal process, prepares barium ferrite, this method concretely comprises the following steps：First, using corresponding nitrate aqueous solution as raw material, it is sufficiently mixed, then adds complexing agent, with metal ion complex reaction occurs for complexing, controls reaction condition, obtains colloidal sol, then obtain gel through pervaporation.Finally, gel is reacted with microwave induced burning, generation spontaneous combustion, obtains high circulation activity, the oxygen carrier barium ferrite of high stability.The oxygen carrier barium ferrite that the present invention is prepared, its chemical composition is accurate, is consistent with the ratio of dispensing, therefore is easy to accurately control its composition.In the step of preparing gel using sol-gal process, cost is low, simple to operate, gel component is uniform, and during auto-combustion method, spontaneous combustion reaction is uniformly easy to control, and product barium ferrite composition is uniform.Overall work preparation skill is simple, product morphology rule, size uniformity, has high circulation activity, high stability, is a kind of oxygen carrier of excellent performance.
Description
Technical field
The present invention relates to a kind of preparation method of oxygen carrier, more particularly to a kind of preparation method of oxygen carrier barium ferrite.
Background technology
With the rapid growth of population, the increasingly increase deepened constantly with energy demand of industrialization degree, fired with fossil
Electric power based on material is generated while energy demand is met, and also brings very big environmental hazard, and wherein fossil fuel fires
It is main greenhouse gases to burn discharged CO2, and due to the increase to energy resource consumption, atmospheric CO_2 is also continuously increased, entirely
Ball temperature is all gradually increased.Therefore, the CO2 come from fossil fuel combustion process discharge how is reduced, receives state
The close attention of border society.
Wherein, in the fossil fuel power production process such as coal CO2 recovery and storage (CCS), be most effective way, energy
Enough targets for reaching effective emission reduction CO2 in a short time.But CCS cost is higher, tremendous economic is brought to bear to enterprise, because
This, it is promoted and used also is difficult to really implement always.
Therefore, the CO2 recovery technologies of novel low-cost are explored and studied, are subtracted for CO2 in fossil fuel combustion process
Row is significant.
Nineteen eighty-three, Germany scientist Richter and Knoche propose burning chemistry chains (chemical looping first
Combustion, CLC) concept.The combustion technology difference maximum with common combustion technology is not use in air directly
Oxygen molecule, but the combustion process of fuel is completed using the oxygen atom in oxygen carrier, combustion product (mainly CO2 and water
Steam) will not by the nitrogen dilution in air very high concentrations, be available almost pure CO2 by simple condensation, it is simple and
Realize to low energy consumption CO2 separation and trapping；Further, since fuel reactor and the running temperature of air reactor are relatively
It is low, almost without the generation of nitrogen oxides in air reactor, and in fuel reactor, due to not contacted with oxygen,
There is no the generation of nitrogen oxides.
Therefore, how the oxygen carrier material that circulation activity is good, stability is good is provided, is the key for solving CO2 emission reductions.
The content of the invention
The purpose of the present invention is providing a kind of oxygen carrier with high circulation activity, high stability --- barium ferrite material
Preparation method.
In order to realize foregoing invention purpose, the technical solution adopted by the present invention is as follows：
A kind of preparation method of oxygen carrier barium ferrite, comprises the following steps：
1) corresponding nitrate aqueous solution, described two aqueous solution are prepared with Ba (NO3) 2, Fe (NO3) 3 respectively for raw material
Concentration be 0.02-0.05mol/L；
2) according to the ratio of mol ratio Ba2+: Fe3+=1: 1, the nitrate aqueous solution is mixed, stirred, then
Complexing agent is added, the complexing agent and the mol ratio of the total amount of the metal cation are 5-7: 1, then add ammoniacal liquor, control
The pH of system processed is 8-9, is heated to 40-60 DEG C and is slowly stirred, and reaction 4-5h obtains colloidal sol；
3) colloidal sol is evaporated to obtain gel；
4) gel is positioned in microwave heating container, opens the microwave heating container, the xerogel is carried out
Burning, obtains oxygen carrier barium ferrite after end to be combusted.
Further, the complexing agent is citric acid and/or ethylenediamine tetra-acetic acid.
Further, the condition of the evaporation is evaporates at 80-90 DEG C, until forming xerogel.
Further, the burning carries out 10-30s.
The present invention is first mixed the metal-nitrate solutions of calcium and iron, realizes the uniform mixing of metal ion；Then
Complex reaction is occurred by complexing agent and metal ion, and controls complexing agent excessive, ensures the abundant complexing of metal cation；Again
Using collosol and gel-spontaneous combustion reaction, high circulation activity, the oxygen carrier of high stability are obtained.
The beneficial effects of the invention are as follows：It is accurate to synthesize the chemical composition of obtained oxygen carrier, is consistent with the ratio of dispensing, and
And by the cost of sol-gal process is low, uniformly manageable feature is mutually tied for the reaction of the uniform auto-combustion method of simple to operate, composition
Close, integrated artistic is simple, and product morphology rule, size uniform, is a kind of oxygen carrier of excellent performance.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
Replaced by other equivalent or with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
Embodiment 1
A kind of preparation method of oxygen carrier barium ferrite, comprises the following steps：
1) with Ba (NO3) 2, Fe (NO3) 3 for raw material, prepare corresponding nitrate aqueous solution respectively, the aqueous solution it is dense
Spend for 0.02mol/L；
2) according to the ratio of mol ratio Ba2+: Fe3+=1: 1, the nitrate aqueous solution is mixed, stirred, then
Complexing agent citric acid is added, the citric acid and the mol ratio of the total amount of the metal cation are 5: 1, then add ammonia
Water, the pH of control system is 8, is heated to 40 DEG C and is slowly stirred, and reaction 5h obtains colloidal sol；
3) colloidal sol is evaporated in 90 DEG C, until forming xerogel；
4) xerogel is positioned in microwave heating container, opens the microwave heating container inducing combustion, it is described
Xerogel burning 20s, obtains oxygen carrier barium ferrite BaFeO3 after end to be combusted.
Embodiment 2
A kind of preparation method of oxygen carrier barium ferrite, comprises the following steps：
1) with Ba (NO3) 2, Fe (NO3) 3 for raw material, prepare corresponding nitrate aqueous solution respectively, the aqueous solution it is dense
Spend for 0.04mol/L；
2) according to the ratio of mol ratio Ba2+: Fe3+=1: 1, the nitrate aqueous solution is mixed, stirred, then
Complexing agent citric acid is added, the citric acid and the mol ratio of the total amount of the metal cation are 7: 1, then add ammonia
Water, the pH of control system is 8.3, is heated to 60 DEG C and is slowly stirred, and reaction 4h obtains colloidal sol；
3) colloidal sol is evaporated in 80 DEG C, until forming xerogel；
4) xerogel is positioned in microwave heating container, opens the microwave heating container inducing combustion, it is described
Xerogel burning 10s, obtains oxygen carrier barium ferrite BaFeO3 after end to be combusted.
Embodiment 3
A kind of preparation method of oxygen carrier barium ferrite, comprises the following steps：
1) with Ba (NO3) 2, Fe (NO3) 3 for raw material, prepare corresponding nitrate aqueous solution respectively, the aqueous solution it is dense
Spend for 0.04mol/L；
2) according to the ratio of mol ratio Ba2+: Fe3+=1: 1, the nitrate aqueous solution is mixed, stirred, then
Complexing agent citric acid is added, the citric acid and the mol ratio of the total amount of the metal cation are 6: 1, then add ammonia
Water, the pH of control system is 9, is heated to 60 DEG C and is slowly stirred, and reaction 4h obtains colloidal sol；
3) colloidal sol is evaporated in 85 DEG C, until forming xerogel；
4) xerogel is positioned in microwave heating container, opens the microwave heating container inducing combustion, it is described
Xerogel burning 30s, obtains oxygen carrier barium ferrite BaFeO3 after end to be combusted.
Comparative example 1
1) prepared respectively accordingly according to the ratio of mol ratio Ba2+: Fe3=1: 1 for raw material with Ba (NO3) 2, Fe (NO3) 3
Nitrate aqueous solution, the concentration of the aqueous solution is 0.04mol/L；
2) nitrate aqueous solution is mixed, stirred, then add complexing agent ethylenediamine tetra-acetic acid, the second two
Amine tetraacethyl and the mol ratio of the total amount of the metal cation are 5: 1, then add ammoniacal liquor, the pH of control system is 8；
3) mixed liquor for obtaining step 2), which is put into hydrothermal reaction kettle, carries out hydro-thermal reaction, 180 DEG C of reaction temperature, reaction
Time 10h, reaction take out product, washing, drying after terminating, obtain barium ferrite BaFe0.7Co0.3O3.
Comparative example 2
According to the method for comparative example 1, the raw material of embodiment 2 is subjected to hydro-thermal process, obtains barium ferrite
BaFe0.7Co0.3O3。
Comparative example 3
According to the method for comparative example 1, the raw material of embodiment 3 is subjected to hydro-thermal process, obtains barium ferrite
BaFe0.4Co0.6O3。
The obtained barium ferrite of embodiment 1-3 and comparative example 1-3 is prepared into catalyst, tests its catalytic performance, embodiment
The averaging loop activity for the oxygen carrier barium ferrite that 1-3 is obtained is higher at least than the averaging loop activity of barium ferrite in comparative example 1-3
23%, and stability of the obtained oxygen carrier barium ferrites of embodiment 1-3 under high temperature (300-800 DEG C) is also significantly better than contrast
Example 1-3 barium ferrite material.
Claims (4)
1. a kind of preparation method of oxygen carrier barium ferrite, it is characterised in that methods described comprises the following steps：
1) with Ba (NO3) 2, Fe (NO3) 3 for raw material, prepare corresponding nitrate aqueous solution respectively, described two aqueous solution it is dense
Degree is 0.02-0.05mol/L；
2) according to the ratio of mol ratio Ba2+: Fe3+=1: 1, the nitrate aqueous solution is mixed, stirred, is then added
Complexing agent, the complexing agent and the mol ratio of the total amount of the metal cation are 5-7: 1, then add ammoniacal liquor, control volume
The pH of system is 8-9, is heated to 40-60 DEG C and is slowly stirred, and reaction 4-5h obtains colloidal sol；
3) colloidal sol is evaporated to obtain gel；
4) gel being positioned in microwave heating container, opens the microwave heating container, the xerogel is burnt,
Oxygen carrier barium ferrite is obtained after end to be combusted.
2. the preparation method of a kind of oxygen carrier barium ferrite according to claim 1, it is characterised in that the complexing agent is lemon
Lemon acid and/or ethylenediamine tetra-acetic acid.
A kind of 3. preparation method of oxygen carrier barium ferrite according to claim 1, it is characterised in that the condition of the evaporation
To be evaporated at 80-90 DEG C, until forming xerogel.
4. the preparation method of a kind of oxygen carrier barium ferrite according to claim 1, it is characterised in that the burning is carried out
10-30s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710838453.5A CN107384507B (en) | 2017-09-13 | 2017-09-13 | A kind of preparation method of oxygen carrier barium ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710838453.5A CN107384507B (en) | 2017-09-13 | 2017-09-13 | A kind of preparation method of oxygen carrier barium ferrite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107384507A true CN107384507A (en) | 2017-11-24 |
| CN107384507B CN107384507B (en) | 2019-04-05 |
Family
ID=60350269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710838453.5A Active CN107384507B (en) | 2017-09-13 | 2017-09-13 | A kind of preparation method of oxygen carrier barium ferrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107384507B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422882A (en) * | 2019-07-17 | 2019-11-08 | 兰溪泛翌精细陶瓷有限公司 | A kind of novel ferroelectric material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337694A (en) * | 2007-07-03 | 2009-01-07 | 宁波大学 | Method for preparing BaFe12O19 nanometer granules with soft magnetization by hydrothermal method at low temperature |
| CN101559982A (en) * | 2009-05-27 | 2009-10-21 | 南京工业大学 | Method of one-step synthesis of hexagonal barium ferrite nanometer crystal by microwave-assistant sol-gel spontaneous combustion |
-
2017
- 2017-09-13 CN CN201710838453.5A patent/CN107384507B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337694A (en) * | 2007-07-03 | 2009-01-07 | 宁波大学 | Method for preparing BaFe12O19 nanometer granules with soft magnetization by hydrothermal method at low temperature |
| CN101559982A (en) * | 2009-05-27 | 2009-10-21 | 南京工业大学 | Method of one-step synthesis of hexagonal barium ferrite nanometer crystal by microwave-assistant sol-gel spontaneous combustion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422882A (en) * | 2019-07-17 | 2019-11-08 | 兰溪泛翌精细陶瓷有限公司 | A kind of novel ferroelectric material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107384507B (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111377462B (en) | Prussian blue positive electrode material, sodium ion battery and preparation method and application of prussian blue positive electrode material and sodium ion battery | |
| CN113694922B (en) | Supported catalyst for ammonia decomposition and preparation method thereof | |
| CN104084197B (en) | A kind of be carrier ruthenium system ammonia synthesis catalyst and the preparation thereof of graphitization active carbon | |
| CN101327922A (en) | Preparation of LiFePO4 | |
| CN105271431B (en) | Method for preparing ferriferrous oxide magnetic material and composite material thereof | |
| CN102515129A (en) | Preparation method for submicron battery-grade ferric phosphate | |
| CN108054381A (en) | A kind of rear-earth-doped type lithium manganese silicate anode material and its microwave radiation technology preparation method | |
| CN102294255A (en) | Carbon gel catalyst and application thereof | |
| CN103357406A (en) | Rare earth element-doped perovskite-type Ru-loading ammonia-synthesis catalyst | |
| CN106423194A (en) | Preparation method of low-temperature efficient sulfur-resistant and water-resistant denitration catalyst | |
| CN110358083A (en) | A kind of the polyaniline composite material and preparation method and application of in-situ polymerization | |
| CN103372436B (en) | Oxygen carrier, preparation method and applications | |
| CN107384507B (en) | A kind of preparation method of oxygen carrier barium ferrite | |
| CN103623832B (en) | Preparation method of rare-earth oxide material containing tourmaline | |
| CN104936692B (en) | The ammoxidation catalyst based on the sour yttrium of metal-doped positive cobalt for producing nitric acid | |
| CN111056543A (en) | Preparation method of low-specific-surface high-compaction iron phosphate | |
| CN113877611B (en) | Phosphoric acid modified manganese oxide supported catalyst and preparation method thereof | |
| CN103212430A (en) | Method for synthesizing nitrogen-carbon nonmetal reducing catalyst by utilizing concentrated sulfuric acid carbonization | |
| CN110817830A (en) | Method for preparing lithium iron phosphate electrode material from guanidino raw material | |
| CN104733709A (en) | Preparation method of lithium manganese iron phosphate or lithium manganese iron phosphate composite material in controllable crystal form | |
| CN103289777A (en) | Composite oxide oxygen carrier as well as preparation method and application thereof in chemical chain oxygen decoupling | |
| CN107384506B (en) | A kind of preparation method of oxygen carrier iron cobalt acid barium | |
| CN109626349B (en) | Preparation method of irregular skeleton-shaped iron phosphate | |
| CN110833842A (en) | Micro-nano copper-ruthenium composite phosphide catalyst and preparation method and application thereof | |
| CN112915993B (en) | Catalyst for coproduction of oxamide and methyl carbamate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190308 Address after: 312500 Taoyuan New Village No. 27-3, Juzhen, Juzhen, Dashi, Xinchang County, Shaoxing City, Zhejiang Province (Residence Declaration) Applicant after: XINCHANG QUNJIAO AGRICULTURAL DEVELOPMENT Co.,Ltd. Address before: 530022 Yuexinyuan 3-701 Yuewan Road, Qingxiu District, Nanning City, Guangxi Zhuang Autonomous Region Applicant before: Wang Dalong |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211008 Address after: 312500 No. 32, chusiwan Road, Xinchang Economic Development Zone, Shaoxing City, Zhejiang Province Patentee after: XINCHANG TONGLE SEALS Co.,Ltd. Address before: 312500 No. 27-3, Taoyuan new village, dashiju village, dashiju Town, Xinchang County, Shaoxing City, Zhejiang Province (residence declaration) Patentee before: XINCHANG QUNJIAO AGRICULTURAL DEVELOPMENT Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method of oxygen carrier barium ferrite Effective date of registration: 20211202 Granted publication date: 20190405 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: XINCHANG TONGLE SEALS Co.,Ltd. Registration number: Y2021330002423 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220816 Granted publication date: 20190405 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: XINCHANG TONGLE SEALS Co.,Ltd. Registration number: Y2021330002423 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221101 Address after: 312500 No. 186, Ruer Village, Ru'ao Town, Xinchang County, Shaoxing City, Zhejiang Province (application for residence) Patentee after: Shaoxing Baqi Technology Co.,Ltd. Address before: 312500 No. 32, chusiwan Road, Xinchang Economic Development Zone, Shaoxing City, Zhejiang Province Patentee before: XINCHANG TONGLE SEALS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method of oxygen carrier barium ferrite Effective date of registration: 20221211 Granted publication date: 20190405 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: Shaoxing Baqi Technology Co.,Ltd. Registration number: Y2022330003541 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |