Pretrement of tail ore, concretion cementing material prepared therewith and their prepn
Title：
Pretrement of tail ore, concretion cementing material prepared therewith and their prepn
Application Number：
 200610103677
Application Date：
 2006/07/28
Announcement Date：
 2007/01/03
Pub. Date：
Publication Number：
 1887764
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C04B 7/14, C04B 7/24
Applicant(s)：
 Beijing Lanzi Concretion Sci-Tech Co., Ltd.
Inventor(s)：
 Sun Henghu, Ni Wen, Xu Yuefeng, Xu Weirui, Feng Xiangpeng, Yi Zhonglai
Key Words：
 Pretrement of tail ore, concretion cementing material, preparation
Abstract：
 The present invention relates to pre-treatment of tail ore, concretion cementing material obtained therewith and their preparation process. Tail ore in 30-90 wt%, salts connecting K+, Na+, Ca2+, Mg2+ and/or Fe2+ ion and acid radical ions in 0.1-8 wt%, and other material containing crystal water, hydroxide radical, hydroxyl group, CO22 or other volatile components in 5-60 wt% are mixed, and the mixture is then hydrothermal alteration reacted at 200-900 deg.c. Then, the hydrothermal alteration reacted material in 50-90 wt%, cement clinker in 0.1-29 wt%, blast furnace slag or other high temperature treated waste in 0-30 wt%, gypsum in 0-8 wt% and rock forming agent in 0.1-5 wt% are mixed and ground to obtain cement powder. The cement powder has high strength and high stability.
Claim：
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PCT：
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