| Comparisons of species and coagulation effects of PFS solution and solid PFS from pyrite cinders |
| |
| 作者姓名： | 郑雅杰 龚竹青 刘立华 陈白珍 |
| |
| 作者单位： | Department of Metallurgical Science and Engineering，Central South University，Changsha 410083，China |
| |
| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＰｏｌｙｆｅｒｒｉｃｓｕｌｆａｔｅ (ＰＦＳ )ｗａｓｓｕｃｃｅｓｓｆｕｌｌｙ ｐｒｅ ｐａｒｅｄｉｎＪａｐａｎｉｎｔｈｅｍｉｄ 1970ｓａｎｄｗａｓｐｒｏｄｕｃｅｄａｎｄａｐｐｌｉｅｄｉｎｉｎｄｕｓｔｒｉｅｓｉｎ 1980ｓ .ＰＦＳａｓａｃ
|
| 关 键 词： | 黄铁矿烧渣 多铁硫酸盐 凝固 |
Comparisons of species and coagulation effects of PFS solution and solid PFS from pyrite cinders |
| |
| ZHENG Ya-jie,GONG Zhu-qing,LIU Li-hua,CHEN Bai-zhen.Comparisons of species and coagulation effects of PFS solution and solid PFS from pyrite cinders[J].Transactions of Nonferrous Metals Society of China,2002,12(5):983-986. |
| |
| Authors: | ZHENG Ya-jie GONG Zhu-qing LIU Li-hua CHEN Bai-zhen |
| |
| Abstract: | Pyrite cinder is a kind of solid waste of sulfuric acid industry. After mixing pyrite cinders with sulfuric acid, ferric sulfate was obtained by heating, maturing, dissolving and filtrating. Suitable amounts of FeSO4 * 7H2O and NaClO3 were added into ferric sulfate solution and polyferric sulfate(PFS) solution was produced. Solid PFS was made by concentrating and drying PFS solution. Time-dependent complex colorimetric tests were done while ferron agent reacted with Fe3+ in the solution. The results show that the proportion of transitional low polymeric species and high polymeric species are increased after PFS solution is transferred into solid PFS. It was discovered by jar tests that solid PFS has very good coagulation effects relevant to the increase of transitional lower polymeric species. |
| |
| Keywords: | pyrite cinders PFS solution solid PFS species coagulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
