Preparation method of macroporous-mesoporous alumina
A mesoporous alumina and aluminum salt technology, applied in the direction of alumina/aluminum hydroxide, can solve the problem of inability to realize the controllable adjustment of macropore-mesoporous aperture, and achieve the effect of reducing preparation cost and simple process
Inactive Publication Date: 2010-10-20
CENT SOUTH UNIV
0 Cites 45 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention provides a preparation method of macroporous-mesoporous alumina, which comprises the following steps: a, dissolving reaction assistants and aluminum salts into solution of an organic solvent, wherein the molar ratio of the reaction assistants and aluminum ions is (3-5): 1, dissolving a template agent into the solution, wherein the molar ratio of the aluminum ions and the template agent is 1: (0.015-0.025), and finally controlling the PH value of the solution to be 3.5-6.0; b, aging the solution prepared in Step a to gradually remove the organic solvent and water in the system, thereby obtaining a macroporous-mesoporous alumina precursor; c, calcinating at the temperature of 400-800 DEG C, thereby obtaining macroporous-mesoporous alumina powder. The invention has the advantages of simple process, regular pore canals and centralized pore size distribution, and can realize controlled regulation according to specific application conditions. Therefore, the invention has significant value of application in heterogeneous catalysis and adsorptive separation in the petrochemical industry and the use as the catalyst carrier, energy material and the like.
Application Domain
Aluminium oxides/hydroxides
Technology Topic
PetrochemicalAluminum Ion +5
Examples
- Experimental program(4)
Example Embodiment
Example Embodiment
Example Embodiment
PUM
Property | Measurement | Unit |
Large hole diameter | 60.0 ~ 80.0 | nm |
Mesopore diameter | 20.0 ~ 40.0 | nm |
Specific surface area | 290.0 | m²/g |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Image sensor and method of manufacturing the same
Owner:SAMSUNG ELECTRONICS CO LTD
Method for harmlessly treating trash flying ash by adopting trash-burning process
Owner:CHONGQING ANGRUIYUE SCI & TECH
Treating method for oily sludge
Owner:安徽省通源环境节能股份有限公司
Method for preparing porous carbon spheres doped with nitrogen and phosphorus and application
Owner:ZHENGZHOU UNIV
Periclase-ferroalumina spinal brick and its making process
Owner:WUHAN UNIV OF SCI & TECH
Classification and recommendation of technical efficacy words
- Simple process
- low cost of preparation
Multimedia data recording apparatus, monitor system, and multimedia data recording method
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof
Owner:WUHAN KAIDI ELECTRIC POWER ENVIRONMENTAL
Method for recycling metal oxide from waste flue gas denitration catalyst
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD
Method for preparing graphite alkyne film
Owner:INST OF CHEM CHINESE ACAD OF SCI