| 发明名称 |
MODIFICATION OF LAYERED DOUBLE HYDROXIDES |
| 摘要 |
The present invention relates to a process for modifying a layered double hydroxide (LDH), the process comprising,
a. providing a water-wet layered double hydroxide of formula:;[Mz+1-xM′y+x(OH)2]a+(Xn-)a/r.bH2O (1)wherein M and M′ are metal cations, z=1 or 2; y=3 or 4, x is 0.1 to 1, preferably x<1, more preferably x=0.1-0.9, b is 0 to 10, X is an anion, r is 1 to 3, n is the charge on the anion X and a is determined by x, y and z, preferably a=z(1−x)+xy−2;b. maintaining the layered double hydroxide water-wet, andc. contacting the water-wet layered double hydroxide with at least one solvent, the solvent being miscible with water and preferably having a solvent polarity (P′) in the range 3.8 to 9,
as well as to a layered double hydroxide prepared according to that process. |
| 申请公布号 |
US2015238927(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201314432019 |
申请日期 |
2013.09.27 |
| 申请人 |
SCG CHEMICALS CO., LTD. |
发明人 |
O'Hare Dermot;Wang Qiang |
| 分类号 |
B01J20/08;B01J21/10;B01J23/06;B01J37/08;B01J27/138;B01J27/053;B01J27/232;B01J37/04;B01J20/30;B01J27/25 |
主分类号 |
B01J20/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for modifying a layered double hydroxide (LDH), the process comprising,
a. providing a water-wet layered double hydroxide of formula:
[Mz+1-xM′y+x(OH)2]a+(Xn-)a/r*bH2O (a)wherein M and M′ are metal cations, z=1 or 2; y=3 or 4, x is 0.1 to 1, b is 0 to 10, X is an anion, r is 1 to 3, n is the charge on the anion X and a=z(1−x)+xy−2; b. maintaining the layered double hydroxide water-wet, and c. contacting the water-wet layered double hydroxide with at least one solvent, the solvent being miscible with water. |
| 地址 |
Bangsue, Bangkok TH |
