Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (12): 111-118.doi: 10.19964/j.issn.1006-4990.2023-0068
• Environment·Health·Safety • Previous Articles Next Articles
YANG Junjie1,2(), DONG Yonggang2, ZHANG Jing1,2, ZHANG Yu1,2, CAO Jianxin1,3()
Received:
2023-02-13
Online:
2023-12-10
Published:
2023-12-14
Contact:
CAO Jianxin
E-mail:981961813@qq.com;jxcao@gzu.edu.cn
CLC Number:
YANG Junjie, DONG Yonggang, ZHANG Jing, ZHANG Yu, CAO Jianxin. Occurrence and distribution of matter elements in phosphorus tailings[J]. Inorganic Chemicals Industry, 2023, 55(12): 111-118.
Table 2
Mass fraction of major elements in phosphorus tailings with values of element transfer factor"
元素 | 磷尾矿 | 元素转移 因子/% | ||||
---|---|---|---|---|---|---|
氧化物 形式 | 单元素 形式 | w(氧化 物)/% | w(单元素)/% | |||
— | O | — | 36.829 | — | ||
CaO | Ca | 45.674 | 29.711 | 34.147 | ||
MgO | Mg | 17.661 | 10.651 | 97.038 | ||
P2O5 | P | 6.424 | 2.713 | 7.917 | ||
SiO2 | Si | 2.548 | 1.159 | 6.862 | ||
F | F | 1.008 | 1.025 | 17.898 | ||
Na2O | Na | 0.111 | 0.083 | 14.976 | ||
K2O | K | 0.086 | 0.068 | 4.889 | ||
Al2O3 | Al | 0.395 | 0.203 | 3.791 | ||
SO3 | S | 0.987 | 0.378 | 95.281 | ||
Fe2O3 | Fe | 0.483 | 0.289 | 7.399 | ||
其他 | 其他 | 0.123 | 0.091 | 9.318 | ||
烧失率 | 烧失率 | 24.500 | 16.800 | — |
Table 4
Phosphorus tailings surface composition corresponding to binding energy and relative content"
物质 | 结合能/eV | 相对含量/% | ||||
---|---|---|---|---|---|---|
Ca 2p | Mg 1s | Si 2p | F 1s | P 2p | ||
CaCO3 | 347.30、351.10 | — | — | — | — | 32.52 |
Ca5F(PO4)3 | 347.90、351.55 | — | — | 685.04 | 133.82 | 25.18 |
CaF2 | 348.40 | — | — | 684.80 | — | 2.86 |
CaSiO3 | 347.50 | — | 102.16 | — | — | 4.07 |
CaHPO4 | 347.00 | — | — | — | 133.10 | 3.03 |
MgF2 | — | 1 304.95 | — | 685.40 | — | 2.3 |
MgCO3 | — | 1 034.25 | — | — | — | 17.53 |
Mg2SiO4 | — | 1 303.60 | 101.90 | — | — | 2.76 |
SiO2 | — | — | 103.00、103.80 | — | — | 6.21 |
NaH2PO4 | — | — | — | — | 134.10 | 1.06 |
Na2SiF6 | — | — | 104.30 | 686.00 | — | 0.86 |
K2SiF6 | — | — | 104.60 | 686.60 | — | 0.70 |
NaF | — | — | — | 683.70 | — | 0.39 |
KF | — | — | — | 684.00 | — | 0.53 |
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