固体聚合硫酸铁结构及其热变化  

Study on Structure and Thermal Reaction of Solid Polyferric Sulfate

作　　者：郑雅杰[1] 龚竹青[1] 刘立华[1] 李景升[1] 

机构地区：[1]中南大学冶金科学与工程学院,长沙410083

出　　处：《应用化学》2003年第10期1009-1011,共3页Chinese Journal of Applied Chemistry

基　　金：广东云浮硫铁矿集团公司资助

摘　　要：The solid polyferric sulfate(PFS) was made by oxidation of pyrite cinders with NaClO 3. It was first time discovered by X-rays diffractometry that when the solid PFS was prepared at temperature below 120 ℃ the main phase of the solid PFS is Fe 4.67(SO 4) 6(OH) 2·20H 2O which disappeared when heating was carried out above 130 ℃ for 2 h and complex physical chemical reactions occurred . In thermal spectra two TG mass loss peaks and DTA exothermic peaks at 170～290 ℃ and 27～160 ℃, respectively, were recorded.The solid polyferric sulfate(PFS) was made by oxidation of pyrite cinders with NaClO 3. It was first time discovered by X-rays diffractometry that when the solid PFS was prepared at temperature below 120 ℃ the main phase of the solid PFS is Fe 4.67(SO 4) 6(OH) 2·20H 2O which disappeared when heating was carried out above 130 ℃ for 2 h and complex physical chemical reactions occurred . In thermal spectra two TG mass loss peaks and DTA exothermic peaks at 170～290 ℃ and 27～160 ℃, respectively, were recorded.

关 键 词：硫铁矿烧渣 聚合硫酸铁 结构 热性能 

分 类 号：O611.2[理学—无机化学] X781.3[理学—化学]