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lidanye
½ð³æ (СÓÐÃûÆø)
- ·ÒëEPI: 31
- Ó¦Öú: 8 (Ó×¶ùÔ°)
- ½ð±Ò: 952.5
- Ìû×Ó: 237
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- ³æºÅ: 941250
- ×¢²á: 2010-01-12
- רҵ: »·¾³Î¢ÉúÎïѧ
zhouli5212(½ð±Ò+10, ·ÒëEPI+1):лл 2010-04-16 19:32
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Aluminum-containing three-dimensional ordered macroporous lithium manganese oxide LiAlMnO4 was prepared by filling the mixture solution of lithium nitrate, aluminum nitrate and manganese acetate in the PMMA colloidal crystal template. The corresponding novel lithium ion-sieve HAlMnO4 was obtained after treatment with diluted hydrochloric acid. The experiment showed that the pore size and pore wall thickness was 240 nm and 52 nm, respectively and the x-ray diffraction peaks belonged to pure spinel. In the 0.1 M HCl solution, the removal rate of lithium ion was above 97% and the solution loss of manganese and aluminum was only 0.23% and 0.45%, respectively, due to the substitution of manganese (III) by aluminum. The maximum adsorption of lithium ion was 45.5 mg/g, achieving 96.3% of the theoretical adsorption of HAlMnO4. Meanwhile, the adsorption rate of lithium ion was significantly accelerated and the adsorbent had a very high selectivity on Li+ in the solution where Na+, K+, Mg2+ and Ca2+ were also present. ·ÇÒµÄÚÈËÊ¿¡£Çë×Ðϸ²é¿´×¨ÒµÊõÓ£© |
2Â¥2010-04-15 00:59:03
benmao_mogu
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- ·ÒëEPI: 51
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- ºì»¨: 24
- Ìû×Ó: 1540
- ÔÚÏß: 198.4Сʱ
- ³æºÅ: 992763
- ×¢²á: 2010-04-09
- ÐÔ±ð: GG
- רҵ: »¯Ñ§·´Ó¦¹¤³Ì
zhouli5212(½ð±Ò+10):лл 2010-04-16 19:32
| The methyl methacrylate colloidal crystal templates filling nitric acid lithium manganese acetate, aluminum nitrate and the mixture preparation out of 3d combining aluminium -ordered macroporous LiAlMnO4 lithium manganese oxide. After rare hydrochloric acid treatment after new obtain corresponding HAlMnO4 lithium ionic sieve. Experiments show that the diameter and wall thickness holes for the law and 52 nm around 240 nm, X-ray diffraction peak belongs to pure spinel phase. In the solution of 0.1 M HCl in lithium ion of the removal rate reached 97%, and the loss of manganese and aluminum aluminum on three price because the only alternative, manganese and 0.23% 0.45%. The biggest lithium ion adsorption capacity for 45.5 mg/g, reached HAlMnO4 theory. The adsorption 96.3% Meanwhile lithium ion adsorption rate speed, and making +, K +, Mg2 Ca2 + + and solution of the coexistence of Li + sorbent high selectivity. |

3Â¥2010-04-15 15:10:07














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