Process for preparing calcium magnesium acetate by vacuum distillation method |
Title: |
Process for preparing calcium magnesium acetate by vacuum distillation method |
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Application Number: |
02117083 |
Application Date: |
2002/04/29 |
Announcement Date: |
2002/11/13 |
Pub. Date: |
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Publication Number: |
1379012 |
Announcement Number: |
1164555 |
Grant Date: |
2004-9-1 |
Granted Pub. Date: |
2004-9-1 |
ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
C07C 51/41, C07C 53/10 |
Applicant(s): |
Tsinghua Univ |
Inventor(s): |
Qin Wei, Zhao Yinyan, Dai Youyuan |
Key Words: |
preparing process, calcium magnesium acetate, vacuum distillation method |
Abstract: |
A process for preparing calcium magnesium acetate includes such steps as mixing Ca and Mg compound (the mole ratio of Ca:Mg is 3-4:6-7) with solution of acetic acid, to form a solution with concentration of (3-5) mol/L, reaction at 40-90 deg.C for 1-3 hr, filtering, vacuum distilling concentration at 45-90 deg.C and under -0.08-0.1 MPa for 1-5 hr, and drying. Its advantages are simple process, low reaction temp. and high purity of product. |
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Priority: |
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Relevancy information |
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Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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