Title:
MODIFIED CALCIUM SILICATE-BASED NICKEL CATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/159703
Kind Code:
A1
Abstract:
The present invention relates to the technical field of biogas and industrial solid waste resource utilization and catalyst preparation, and in particular, to a modified calcium silicate-based nickel catalyst, a preparation method therefor and an application thereof. The preparation method comprises: leaching silicon-based solid waste by using an alkaline agent, to obtain a silicate leaching solution; dropwise adding the silicate leaching solution and a nitrate solution corresponding to lanthanide series metal into a calcium hydroxide suspension for a first precipitation reaction, and filtering, drying and roasting a precipitate generated by the reaction to obtain a modified calcium silicate carrier; and dispersing the modified calcium silicate carrier in an anhydrous alcohol solvent to obtain a mixed suspension, dropwise adding an alcohol solution of nickel salt into the mixed suspension for a second precipitation reaction, heating and stirring until alcohol in the anhydrous alcohol solvent and the alcohol solution of nickel salt is volatilized, and drying and roasting to obtain a modified calcium silicate-based nickel catalyst. The modified calcium silicate-based nickel catalyst obtained by the preparation method has the advantages of low cost, high stability and high activity, and has an industrial application prospect.
Inventors:
YAN FENG (CN)
QU FAN (CN)
ZHANG ZUOTAI (CN)
LI CHUNYAN (CN)
CHEN HEIJIN (CN)
SHEN XUEHUA (CN)
QU FAN (CN)
ZHANG ZUOTAI (CN)
LI CHUNYAN (CN)
CHEN HEIJIN (CN)
SHEN XUEHUA (CN)
Application Number:
PCT/CN2022/081740
Publication Date:
August 31, 2023
Filing Date:
March 18, 2022
Export Citation:
Assignee:
DECARBON TECH SHENZHEN CO LTD (CN)
International Classes:
B01J23/10; B01J23/83; B01J32/00; C01B3/40
Domestic Patent References:
| WO2013186474A1 | 2013-12-19 |
Foreign References:
| CN108295856A | 2018-07-20 | |||
| CN101637726A | 2010-02-03 | |||
| US20170001863A1 | 2017-01-05 | |||
| CN112547067A | 2021-03-26 | |||
| CN108584969A | 2018-09-28 |
Attorney, Agent or Firm:
GUANGZHOU DEKE INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: