Alumina supporter and preparation method thereof
An alumina carrier, alumina technology, applied in hydrogenation preparation, catalyst carrier, chemical instruments and methods, etc., can solve the problems of strong interaction, difficult reduction and activation, small pore volume, etc., and achieve high activity and good stability. Effect
Active Publication Date: 2008-12-17
SHANXI UNIV
1 Cites 41 Cited by
AI-Extracted Technical Summary
Problems solved by technology
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreAbstract
The invention provides an aluminum oxide carrier and a preparation method thereof. The aluminum oxide carrier takes a mixture prepared by mixing pseudo-boehmite powder prepared by the carbonization method and pseudo-boehmite powder prepared by the aluminum sulfate method according to a weight proportion of 1:0.1 to 5 as a precursor and a complex acid as a peptizing agent; substances such as zirconium, titanium, silicon, alkali metals, alkaline-earth metals, rare-earth metals, carbon black, and the like, are added during kneading process; then the aluminum oxide carrier is obtained after forming, drying and roasting. The physical properties of the carrier are as follows: pore volume is 0.4 to 1.2ml/g; specific surface area is 180 to 370m<2>/g; pores with the diameter being more than 100nm accounts for more than 90 percent of total pore volume; the amount of B acid is 0.1 to 0.3mmol/g; the amount of L acid is 0.2 to 0.5mmol/g. The carrier is especially applicable to the preparation of 1, 4-butanediol catalysts in the two-stage hydrogenation catalytic synthesis of 1, 4-butynediol.
Application Domain
Technology Topic
Examples
- Experimental program(6)
Example Embodiment
Example Embodiment
Example Embodiment
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Property | Measurement | Unit |
Pore volume | 0.93 | ml/g |
Specific surface area | 0.05 ~ 2.41 | m²/g |
Acidity | 0.3 | mmol/g |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Similar technology patents
Subtilases
ActiveUS7294499B2High activityIncrease specific activityBacteriaDetergent compounding agentsImmunologySubtilase
Owner:NOVOZYMES AS
Novel double-layered composite transmitting tissue regeneration membrane and preparation method thereof
Owner:NINGXIA MEDICAL UNIV
Cytoplasmic Localization Dna and Rna
InactiveUS20080071068A1High activityEnhance resistancePolypeptide with localisation/targeting motifOrganic active ingredientsDrugPeptide
Owner:NAT INST OF ADVANCED IND SCI & TECH +1
Catalyst composition preparation and use
ActiveUS7544285B2High mechanical strengthHigh activityOther chemical processesCatalyst activation/preparationNon noble metalAluminium
Owner:SHELL OIL CO
Inhibitors of serine protease activity methods and compositions for treatment of nitric oxide-induced clinical conditions
InactiveUS20040220239A1High activityRecognize utilityBiocidePeptide/protein ingredientsNitric oxideChemistry
Owner:BIO HLDG
Classification and recommendation of technical efficacy words
- Good stability
- High activity
Capping layer for extreme low dielectric constant films
InactiveUS6875687B1Superior adhesion characteristicGood stabilitySemiconductor/solid-state device detailsSolid-state devicesCarbon dopedLow-k dielectric
Owner:APPLIED MATERIALS INC
Method for preparing Nano silver piece
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Nano Anticancer Micelles of Vinca Alkaloids Entrapped in Polyethylene Glycolylated Phospholipids
ActiveUS20090053293A1Good stabilityImprove drug distributionBiocidePharmaceutical non-active ingredientsVinorelbineAdjuvant
Owner:BEIJING DIACRID MEDICAL TECH
Amorphous irox film ph sensor
ActiveUS20110140703A1Good stabilityLess driftMaterial analysis by electric/magnetic meansSuperimposed coating processPhysicsPolymer substrate
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
UWB-based vehicle positioning system and method
ActiveCN106205136AHigh positioning accuracyGood stabilityTicket-issuing apparatusRoad vehicles traffic controlEngineeringBase station
Owner:SHENZHEN GENVICT TECH