CN108273566A - A kind of preparation method of aluminum oxide micro-sphere - Google Patents
A kind of preparation method of aluminum oxide micro-sphere Download PDFInfo
- Publication number
- CN108273566A CN108273566A CN201810141700.0A CN201810141700A CN108273566A CN 108273566 A CN108273566 A CN 108273566A CN 201810141700 A CN201810141700 A CN 201810141700A CN 108273566 A CN108273566 A CN 108273566A
- Authority
- CN
- China
- Prior art keywords
- preparation
- aluminum oxide
- oxide micro
- oil
- sphere according
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000004005 microsphere Substances 0.000 title claims abstract description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000003921 oil Substances 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 239000000084 colloidal system Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 4
- 235000019198 oils Nutrition 0.000 claims description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910001593 boehmite Inorganic materials 0.000 claims description 5
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 4
- 239000008158 vegetable oil Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims description 2
- 229910001648 diaspore Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229910001679 gibbsite Inorganic materials 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 230000020477 pH reduction Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 239000007863 gel particle Substances 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- 240000005702 Galium aparine Species 0.000 description 1
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 241000612118 Samolus valerandi Species 0.000 description 1
- 241000219793 Trifolium Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- -1 aluminum alkoxide Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/51—Spheres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/633—Pore volume less than 0.5 ml/g
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention belongs to catalyst carrier fields, and in particular to a kind of preparation method of aluminum oxide micro-sphere, including the following contents：Silicon source is mixed to water and is ground to granularity D50≤3 μm, Aluminum sol is added, continues to grind and be acidified that colloid is made；Colloid is instilled in oil and be molded, be heating and curing, the taking-up of cured particle is washed, is dried, roasts and obtains alumina balls.Colloid is made with acid gel using Aluminum sol and silicon source, is molded and cures in the oil, it is no in the whole process to use nitrogen substance, it also avoids subsequently to generate nitrogen oxides, reduces vent gas treatment difficulty, it is cost-effective.
Description
Technical field
The invention belongs to catalyst carrier fields, and in particular to a kind of preparation method of aluminum oxide micro-sphere.
Background technology
Aluminium oxide is widely used as the common basic material of catalyst in petrochemical industry, appearance shape
State is about following several：The mesostroma of microballoon, spherical shape, bar shaped (cylinder, clover, bunge bedstraw herb etc.) or FCC catalyst
Form.Wherein higher requirement of the movable bed catalyst to intensity, ball type carrier prepared by this method also have higher strong
Degree.
The technique that the production of ball-aluminium oxide uses at present can be divided into two classes, and one kind is mechanical-moulded, such as disk forming
Method, extrusion molding (extrusion, shaping) etc., this kind of spherical alumina support by the molding technique productions of mechanical force intensity,
There is natural defect in terms of sphericity, another kind of is by surface tension molding, such as oil column method or oleyl amine method etc., this kind of technique
The spherical alumina support of production is more excellent than mechanical-moulded in terms of intensity, sphericity, and can produce the load of diameter 1-2mm
Body, this is mechanical-moulded to be difficult to reach.
CN105502447B discloses a kind of method that hot forming oil column prepares alumina globule, and aluminum alkoxide is hydrolyzed and is made
Boehmite powder, urea, the water obtained is mixed to prepare aluminum oxide suspension, and acid is added thereto, aluminium oxide slurries are obtained, in oxygen
Change addition hexamethylenetetramine in aluminium paste liquid and instilled balling-up in deep fat after mixing, directly collects oxygen in deep fat column low side
Change aluminium bead, then the alumina globule of collection is washed, is dry, roasting.Although high-quality alumina globule can be made in the method,
But due to having used hexamethylenetetramine in process of production, great peculiar smell and nitrogen oxides are will produce, vent gas treatment is deposited
Great difficult.
CN1204964C discloses a kind of oil ammonia column forming method of ball-aluminium oxide, and alumina sol is instilled by 0.1-
Glomeration gel particles in the oil ammonia column of the upper oil phase of 4.5mm and lower layer's electrolyte solution composition of 10-300cm, followed by
Gel particles are taking out dry, roasting aging 0.5-15 hours in electrolyte solution phase.The method avoids making for organic amine
With, but appoint so no side ground break away from nitrogen substance, still have the hidden danger of pollution environment.
Invention content
The present invention in order to solve the problems existing in the prior art, provides a kind of preparation method of aluminum oxide micro-sphere.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is：
A kind of preparation method of aluminum oxide micro-sphere, including the following contents：Silicon source is mixed with water and be ground to granularity D50≤
3 μm, Aluminum sol is added, continues to grind and be acidified that colloid is made；Colloid is instilled in oil and is molded, is heating and curing, by cured
Grain, which takes out, to be washed, is dried, roasted and obtain alumina balls.
Further, source of aluminium is false boehmite, gibbsite, boehmite, diaspore, aluminium oxide
It is one or more in powder.
Further, in the Aluminum sol chloride ion content in 10-15wt%.
Further, quality of alumina that the aluminium oxide that the Aluminum sol provides is provided with silicon source and for Aluminum sol, silicon source,
The 20-30% of the sum of water three's weight.
Further, the aluminium oxide that the Aluminum sol provides is 1-20 with the quality of alumina ratio that silicon source provides：80-99.
Further, the pH value after the acidification is 3.0-3.2.
Further, the oil is one or more in transformer oil, medical lubricating oil, vegetable oil, conduction oil.More into
One step is selected from conduction oil.
Further, when being heating and curing temperature be 150-200 DEG C, when a length of 0.5-5h.
Further, the washing process is washed using the dilute hydrochloric acid of 0.1-1mol/L.
Further, the drying temperature is 50-100 DEG C, and calcination temperature is 500-700 DEG C, when roasting a length of 1-2h.
Advantageous effect of the present invention：
One, colloid is made using Aluminum sol and silicon source and acid gel, is molded in the oil and cured, do not had in the whole process
It using nitrogen substance, also avoids subsequently to generate nitrogen oxides, reduces vent gas treatment difficulty, it is cost-effective.
Two, the method that forming oil column provided by the invention prepares alumina balls makes including being ground after silicon source, water are mixed
Silicon source particle smaller is made slurry evenly, is ground after slurry is mixed with Aluminum sol, silicon source particle is made to be mixed with aluminium ion
Evenly, uniform colloid is made after acid solution is added, gel is instilled in oil and is molded and is heating and curing, avoids using organic amine
Or ammonium salt, it can effectively avoid the generation of nitrogen oxides.
Three, the present invention controls solid content, the pH value of colloid by the dosage of reasonably optimizing each component, and is ground to this
The degree is invented to make colloid evenly, further makes obtained properties of product better, and the zero of harmful substance makes
With keeping preparation process and obtained product more environmentally friendly.
Specific implementation mode
Below by specific embodiment, the present invention is described in further detail, and following embodiment can make this profession
The present invention, but do not limit the invention in any way is more completely understood in technical staff.
Embodiment 1
It weighs 146.2g boehmites to mix with 331.74 water, be ground in JM-L100 type colloid mills, when quasi- thin water aluminium
Stone grain degree D50≤3 μm are added Aluminum sol 22.06g, then grind 10min, be slowly added to the hydrochloric acid of concentration 30% to pH be 3.10,
Balling-up in vegetable oil is instilled, oil is heated to 120 DEG C, constant temperature 300min, takes out alumina balls in the dilute hydrochloric acid of 0.1mol/L
Washing, roasts 120min at 600 DEG C after 80 DEG C of dry 120min, obtains alumina balls.
Embodiment 2
According to the step of embodiment 1 prepare alumina balls, unlike the weight of boehmite be 141.5g, water
Weight is 223.2g, the weight of Aluminum sol is 35.3g.It is 3.10 that formic acid, which is slowly added to, to pH, instills balling-up in conduction oil, will be oily
It is heated to 150 DEG C, constant temperature 240min, alumina balls is taken out and is washed in the dilute hydrochloric acid of 0.1mol/L, in 80 DEG C of dry 120min
120min is roasted at 600 DEG C afterwards, obtains alumina balls.
Embodiment 3
Alumina balls are prepared according to the step of embodiment 2, the difference is that the hydrochloric acid of addition concentration 30% is 3.10 to pH, are dripped
Enter balling-up in vegetable oil, oil is heated to 180 DEG C, constant temperature 120min, takes out alumina balls in the dilute hydrochloric acid of 0.1mol/L
Washing, roasts 120min at 600 DEG C after 80 DEG C of dry 120min, obtains alumina balls.
Embodiment 4
Alumina balls are prepared according to the step of embodiment 1, the difference is that it is 3.10 that formic acid, which is added, to pH, instill transformer oil
Oil is heated to 180 DEG C, constant temperature 180min by middle balling-up, is taken out alumina balls and is washed in the dilute hydrochloric acid of 0.1mol/L, in 80 DEG C
120min is roasted at 600 DEG C after dry 120min, obtains alumina balls.
Sample analysis table
| Number | Diameter mm | Alumina content % | Intensity N | Specific surface m2/g | Hole holds ml/g |
| Embodiment 1 | 1-2 | 99.97 | 58.15 | 241 | 0.44 |
| Embodiment 2 | 1-2 | 99.95 | 60.43 | 233 | 0.45 |
| Embodiment 3 | 1-2 | 99.94 | 62.28 | 236 | 0.44 |
| Embodiment 4 | 1-2 | 99.96 | 59.16 | 240 | 0.45 |
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or
It replaces, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Subject to fixed protection domain.
Claims (10)
1. a kind of preparation method of aluminum oxide micro-sphere, which is characterized in that including the following contents：Silicon source is mixed and is ground to water
Granularity D50≤3 μm are added Aluminum sol, continue to grind and be acidified that colloid is made；Colloid is instilled in oil and is molded, is heating and curing, it will
The taking-up of cured particle washed, dried, is roasted and is obtained alumina balls.
2. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：Source of aluminium is the soft aluminium of a false water
It is one or more in stone, gibbsite, boehmite, diaspore, alumina powder.
3. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：Chloride ion content in the Aluminum sol
In 10-15wt%.
4. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：The aluminium oxide that the Aluminum sol provides
With silicon source provide quality of alumina and be the 20-30% of the sum of Aluminum sol, silicon source, water three's weight.
5. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：The aluminium oxide that the Aluminum sol provides
It is 1-20 with the quality of alumina ratio that silicon source provides：80-99.
6. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：PH value after the acidification is 3.0-
3.2。
7. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：The oil is transformer oil, medical
It is one or more in lubricating oil, vegetable oil, conduction oil.
8. the preparation method of the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：Temperature when being heating and curing
Degree is 150-200 DEG C, when a length of 0.5-5h.
9. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：The washing process is to use 0.1-
The dilute hydrochloric acid of 1mol/L washs.
10. the preparation method of aluminum oxide micro-sphere according to claim 1, it is characterised in that：The drying temperature is 50-100
DEG C, calcination temperature is 500-700 DEG C, when roasting a length of 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141700.0A CN108273566B (en) | 2018-02-11 | 2018-02-11 | Preparation method of alumina microspheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141700.0A CN108273566B (en) | 2018-02-11 | 2018-02-11 | Preparation method of alumina microspheres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108273566A true CN108273566A (en) | 2018-07-13 |
| CN108273566B CN108273566B (en) | 2021-03-23 |
Family
ID=62808309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141700.0A Active CN108273566B (en) | 2018-02-11 | 2018-02-11 | Preparation method of alumina microspheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108273566B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947570A (en) * | 2018-09-07 | 2018-12-07 | 长沙理工大学 | A kind of porous ceramics microballoon and preparation method thereof |
| CN111468048A (en) * | 2020-04-13 | 2020-07-31 | 邹凌峰 | Preparation method of high-strength gamma-alumina microspheres |
| CN114180608A (en) * | 2020-08-24 | 2022-03-15 | 中国石油化工股份有限公司 | Preparation method of alumina pellets |
| CN117735961A (en) * | 2023-12-21 | 2024-03-22 | 任红波 | Method for preparing alumina grinding medium by titration method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097351A (en) * | 1993-07-16 | 1995-01-18 | 中国石油化工总公司 | The preparation method of microspheroidal gama-alumina |
| CN103922373A (en) * | 2014-04-14 | 2014-07-16 | 浙江大学 | Preparation method of alumina porous microsphere |
| CN104418371A (en) * | 2013-08-20 | 2015-03-18 | 中国石油化工股份有限公司 | Preparation method of spherical aluminum oxide |
| CN106745121A (en) * | 2016-12-23 | 2017-05-31 | 鲁西催化剂有限公司 | A kind of preparation method of high-performance active oxidation aluminium ball |
-
2018
- 2018-02-11 CN CN201810141700.0A patent/CN108273566B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097351A (en) * | 1993-07-16 | 1995-01-18 | 中国石油化工总公司 | The preparation method of microspheroidal gama-alumina |
| CN104418371A (en) * | 2013-08-20 | 2015-03-18 | 中国石油化工股份有限公司 | Preparation method of spherical aluminum oxide |
| CN103922373A (en) * | 2014-04-14 | 2014-07-16 | 浙江大学 | Preparation method of alumina porous microsphere |
| CN106745121A (en) * | 2016-12-23 | 2017-05-31 | 鲁西催化剂有限公司 | A kind of preparation method of high-performance active oxidation aluminium ball |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947570A (en) * | 2018-09-07 | 2018-12-07 | 长沙理工大学 | A kind of porous ceramics microballoon and preparation method thereof |
| CN111468048A (en) * | 2020-04-13 | 2020-07-31 | 邹凌峰 | Preparation method of high-strength gamma-alumina microspheres |
| CN114180608A (en) * | 2020-08-24 | 2022-03-15 | 中国石油化工股份有限公司 | Preparation method of alumina pellets |
| CN117735961A (en) * | 2023-12-21 | 2024-03-22 | 任红波 | Method for preparing alumina grinding medium by titration method |
| CN117735961B (en) * | 2023-12-21 | 2024-05-31 | 任红波 | Method for preparing alumina grinding medium by titration method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108273566B (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108273566A (en) | A kind of preparation method of aluminum oxide micro-sphere | |
| CN111203175B (en) | Honeycomb hydrophobic molecular sieve adsorbent and preparation method and application thereof | |
| CN104692399A (en) | Highly-ordered radial spherical crinkled mesoporous silicon dioxide material and preparation method thereof | |
| CN108311117A (en) | A kind of magnetic bio Carbon Materials and preparation method thereof for heavy metal containing wastewater treatment | |
| CN104003715B (en) | ZrC-ZrO2Composite ceramics microsphere and preparation method thereof | |
| CN104891539B (en) | A kind of expanding method of Spherical alumina particles | |
| CN106892648A (en) | A kind of preparation method of ball-aluminium oxide | |
| CN106046756A (en) | Graphene modified and enhanced polyurethane composite material for 3D printing | |
| CN104043479B (en) | A kind of hydrocracking catalyst and its preparation and application | |
| CN106824069B (en) | For handling the preparation method of the rear-earth-doped iron Carbon Materials of arsenic-containing waste water | |
| CN104475173A (en) | Preparation method of high-adsorption supported photocatalyst | |
| CN104402067B (en) | A kind of method that directly high specific surface area and mesoporous metal-oxide is prepared in thermal decomposition | |
| CN106311351B (en) | A kind of spherical alumina support and preparation method thereof | |
| CN104028245B (en) | A kind of have modified nano-titanium dioxide of better adsorption effect and preparation method thereof | |
| CN108273544A (en) | Extruded type copper and iron mixes based molecular sieve denitrating catalyst and preparation method thereof | |
| CN106492597A (en) | A kind of preparation method of hollow glass desiccant | |
| CN106348652B (en) | A kind of bionical quartz of anion and preparation method thereof | |
| CN103861660B (en) | A kind of rolling forming method of spherical titanium aluminium composite oxide | |
| CN105478079B (en) | The MgO method for preparing template in situ of the magnetic mesoporous carbon nanometer micro ball of high absorption property and application | |
| CN109926037A (en) | One kind preparing TiO by titanium-based binder2The method of preformed catalyst carrier | |
| CN106745125B (en) | A kind of preparation method of ball-aluminium oxide | |
| CN103830966B (en) | Composite ceramic filter core that the large wearability of a kind of intensity is good and preparation method thereof | |
| CN106396384A (en) | Noctilucent deodorant ceramic glaze and preparation method thereof | |
| CN107857576A (en) | A kind of preparation method of aluminum oxide porous proppant | |
| CN102689914A (en) | Method for preparing aluminum oxide nano-particles |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 614000 group 3, Miaoer village, Jinsu Town, Wutongqiao District, Leshan City, Sichuan Province Applicant after: Runhe catalyst Co.,Ltd. Address before: 614000 group 3, Miaoer village, Jinsu Town, Wutongqiao District, Leshan City, Sichuan Province Applicant before: REZEL CATALYSTS Corp. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240429 Address after: No.23 Yongning Road, Gudao Town, Hekou District, Dongying City, Shandong Province, 257000 Patentee after: Dongying Junlin New Material Co.,Ltd. Country or region after: China Address before: 614000 group 3, Miaoer village, Jinsu Town, Wutongqiao District, Leshan City, Sichuan Province Patentee before: Runhe catalyst Co.,Ltd. Country or region before: China |