Title:
MAGNESIUM FLUORIDE-BASED CATALYST AND USE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/078226
Kind Code:
A1
Abstract:
Disclosed are a magnesium fluoride-based catalyst which is stable above 400oC and has a large specific surface area, and a preparation method for said catalyst. The present invention solves problems such as poor thermal stability and small specific surface area in magnesium fluoride-based catalyst preparation. The present preparation method for the magnesium fluoride-based dehydrohalogenation catalyst comprises the following steps: (1) preparing a suspension solution containing an insoluble magnesium salt and a surfactant, refluxing at 100oC, roasting for 4 hours at 400-550oC, and obtaining magnesium oxide having a large specific surface area; (2) adding an aqueous solution of hydrofluoric acid or ammonium fluoride in a dropwise manner to the magnesium oxide substrate obtained in (1) to perform fluorination, and roasting for 4 hours at 400oC-500oC to obtain magnesium fluoride; (3) impregnating the magnesium fluoride substrate obtained in (2) with an aqueous solution of a doping component, and finally roasting at 400oC-500oC to obtain the catalyst. The catalyst of the present invention implements efficient dehydrohalogenation of a halofluoroalkane.
Inventors:
LV JIAN (CN)
MAO WEI (CN)
BAI YANBO (CN)
QIN YUE (CN)
WANG BO (CN)
WAN HONG (CN)
WANG ZHIXUAN (CN)
DU YONGMEI (CN)
LI YINGCHUN (CN)
LI FENGXIAN (CN)
MAO WEI (CN)
BAI YANBO (CN)
QIN YUE (CN)
WANG BO (CN)
WAN HONG (CN)
WANG ZHIXUAN (CN)
DU YONGMEI (CN)
LI YINGCHUN (CN)
LI FENGXIAN (CN)
Application Number:
PCT/CN2015/072308
Publication Date:
May 26, 2016
Filing Date:
February 05, 2015
Export Citation:
Assignee:
XIAN MODERN CHEMISTRY RES INST (CN)
International Classes:
B01J27/12; B01J21/10; B01J23/78; B01J23/80; C07C17/25; C07C21/18
Foreign References:
| CN103420782A | 2013-12-04 | |||
| CN103418367A | 2013-12-04 |
Other References:
NIU. HUAICHENG ET AL.: "Progress of Preparation and Catalytic Application of Magnesium Fluoride with High Surface Area", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 31, no. 7, 5 July 2012 (2012-07-05)
PAN, MEIHUA ET AL.: "Catalytic Performance of Ru Catalyst Supported on Ba-doped Nano-magnesia Prepared by Sol-gel Method with the Assistance of Surfactant for Ammonia Synthesis", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 31, no. 8, 5 August 2012 (2012-08-05)
M. WOJCIECHOWSKA Æ A. ET AL.: "Properties of Magnesium Oxo-Fluoride Supports for Metal Catalysts", CATALYSIS LETTERS, vol. 128, no. 1-2, 31 March 2009 (2009-03-31), pages 77 - 82, XP019671983
PAN, MEIHUA ET AL.: "Catalytic Performance of Ru Catalyst Supported on Ba-doped Nano-magnesia Prepared by Sol-gel Method with the Assistance of Surfactant for Ammonia Synthesis", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 31, no. 8, 5 August 2012 (2012-08-05)
M. WOJCIECHOWSKA Æ A. ET AL.: "Properties of Magnesium Oxo-Fluoride Supports for Metal Catalysts", CATALYSIS LETTERS, vol. 128, no. 1-2, 31 March 2009 (2009-03-31), pages 77 - 82, XP019671983
Attorney, Agent or Firm:
HENG TAI INTELLECTUAL PROPERTY AGENCY (CN)
西安恒泰知识产权代理事务所 (CN)
西安恒泰知识产权代理事务所 (CN)
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