Title:
METHOD FOR PREPARING BORON-MODIFIED ALUMINIUM OXIDE
Document Type and Number:
WIPO Patent Application WO/2017/197981
Kind Code:
A1
Abstract:
Provided is a method for preparing boron-modified aluminium oxide. The method comprises the following steps: 1) preparing an aqueous boric acid solution having a mass concentration of 0.5%-6.0% at room temperature; 2) taking an aluminium oxide precursor and placing same in a hydro-thermal treatment furnace, and introducing the aqueous boric acid solution into the furnace, wherein the amounts of the aluminium oxide precursor and the aqueous boric acid solution are as follows: the content in percentage by weight of B2O3 therein is 1.0%-10.0%, based on the mass of the boron-modified aluminium oxide carrier; and 3) heating the hydro-thermal treatment furnace for hydro-thermal treatment of the aluminium oxide precursor so as to give the boron-modified aluminium oxide, wherein the hydro-thermal treatment temperature is 450℃-700℃ and the reaction pressure inside the hydro-thermal treatment furnace is 0-0.3 MPa. The method not only can make the auxiliary boron better distributed on the surface of the aluminium oxide carrier, and improve the dispersity of active components, but also can adjust the ratio of a B acid and an L acid of the aluminium oxide carrier and improve the pore structure of the aluminium oxide carrier.
Inventors:
XU LI (CN)
SHI YOULIANG (CN)
YANG WEIGUANG (CN)
LAI BO (CN)
ZHAO TAO (CN)
WANG CHUNFENG (CN)
WANG JIEHUA (CN)
SHI YOULIANG (CN)
YANG WEIGUANG (CN)
LAI BO (CN)
ZHAO TAO (CN)
WANG CHUNFENG (CN)
WANG JIEHUA (CN)
Application Number:
PCT/CN2017/078059
Publication Date:
November 23, 2017
Filing Date:
March 24, 2017
Export Citation:
Assignee:
WUHAN KAIDI ENG TECH RES INST (CN)
International Classes:
B01J32/00; B01J21/02; C10G45/04
Domestic Patent References:
| WO2004035196A2 | 2004-04-29 |
Foreign References:
| CN104445317A | 2015-03-25 | |||
| CN106311263A | 2017-01-11 | |||
| CN104860339A | 2015-08-26 | |||
| CN106000476A | 2016-10-12 |
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: