Method for preparing nanometer calcium carbonate granule |
Title： |
| Method for preparing nanometer calcium carbonate granule |
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Application Number： |
200510086388 |
Application Date： |
2005/09/09 |
Announcement Date： |
2006/05/10 |
Pub. Date： |
2007/11/07 |
Publication Number： |
1769180 |
Announcement Number： |
100347086 |
Grant Date： |
2007-11-7 |
Granted Pub. Date： |
2007-11-7 |
ApplicationType： |
Invention |
State/Country： |
37[China|shandong] |
IPC： |
C01F 11/18 |
Applicant(s)： |
Shandong Haize Nano Material Co., Ltd. |
Inventor(s)： |
Luo Guangsheng, Chen Xiangzhi, Wang Yujun, Chen Guiguang, Wang Kai, Chen Xukui, Du Lei, Xu Jianhong |
Key Words： |
nanometer, calcium carbonate, granule, preparing method |
Abstract： |
The invention relates to a method for preparation of nano calcium carbonate particles by highly effective mixture, belonging to the art of preparation of nano particles. Preparing Ca(OH)2 suspension in a container; fixing dispersion medium in the container and venting reacting gas in; pumping the prepared Ca(OH)2 suspension into reactor by a pump to react, and dropping until PH decreases to 7, the reaction finishes and the nano calcium carbonate particles are prepared; the gas-liquid mixture prepared after the reaction returns to the container to be used cyclically. The merit of the invention is characterized in that the mixture speed is rapid and uniform, the grain size and shape are controllable, the usage ratio of CO2 is high and can reach more than 50%, the operation energy-consumption is low, and the stability is high; the grain size of prepared nano calcium carbonate is about 20nm, the shape is cube-type. And it has good prospect in preparation of nano calcium carbonate. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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