A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR PREPARING LIGHT MAGNESIUM OXIDE AND CALCIUM OXIDE AND APPLICATION THEREOF FOR PREPARING CALCIUM-MAGNESIUM COMPOSITE EXPANDING AGENT
Disclosed are a method for separately preparing light magnesium oxide and calcium oxide by using dolomite and an application thereof in preparation of a calcium-magnesium composite expanding agent. In the method for preparing light magnesium oxide and calcium oxide, based on the difference in decomposition temperature between magnesium carbonate and calcium carbonate during the calcination and decomposition of dolomite and the difference in the weight of the materials after decomposition, the effective separation of magnesium oxide and calcium oxide is realized by a one-step method, thus separately preparing light magnesium oxide and light calcium oxide. The calcium-magnesium composite expanding agent is prepared by using the foregoing light magnesium oxide and calcium oxide. On the one hand, the present invention solves the problem of the limited origin of the light magnesium oxide raw material of the magnesium expanding component in the calcium-magnesium composite expanding agent.
METHOD FOR PREPARING LIGHT MAGNESIUM OXIDE AND CALCIUM OXIDE AND APPLICATION THEREOF FOR PREPARING CALCIUM-MAGNESIUM COMPOSITE EXPANDING AGENT
Disclosed are a method for separately preparing light magnesium oxide and calcium oxide by using dolomite and an application thereof in preparation of a calcium-magnesium composite expanding agent. In the method for preparing light magnesium oxide and calcium oxide, based on the difference in decomposition temperature between magnesium carbonate and calcium carbonate during the calcination and decomposition of dolomite and the difference in the weight of the materials after decomposition, the effective separation of magnesium oxide and calcium oxide is realized by a one-step method, thus separately preparing light magnesium oxide and light calcium oxide. The calcium-magnesium composite expanding agent is prepared by using the foregoing light magnesium oxide and calcium oxide. On the one hand, the present invention solves the problem of the limited origin of the light magnesium oxide raw material of the magnesium expanding component in the calcium-magnesium composite expanding agent.
METHOD FOR PREPARING LIGHT MAGNESIUM OXIDE AND CALCIUM OXIDE AND APPLICATION THEREOF FOR PREPARING CALCIUM-MAGNESIUM COMPOSITE EXPANDING AGENT
LIU JIAPING (author) / ZHANG SHOUZHI (author) / ZHANG YONG (author) / WANG YUJIANG (author) / WANG RUI (author)
2021-06-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2020
Method for preparing low-calcium magnesium oxide by purifying high-calcium magnesite
| European Patent Office | 2024
Magnesium oxide composite expanding agent and preparation method thereof
| European Patent Office | 2020
Calcium-magnesium composite expanding agent as well as preparation method and application thereof
| European Patent Office | 2023
Calcium carbonate and magnesium oxide complexing agent and preparation method thereof
| European Patent Office | 2015