Preparation of calcium sulfate whiskers by carbide slag through hydrothermal method

2014 ◽  
Vol 49 (10) ◽  
pp. 800-807 ◽  
Author(s):  
Yongqian Wang ◽  
Yinchang Li ◽  
Ao Yuan ◽  
Bo Yuan ◽  
Xinrong Lei ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Calcium Sulfate ◽  
Carbide Slag ◽  
Calcium Sulfate Whiskers

Study on the Preparation of Calcium Sulfate Whisker by Hydrothermal Method

2012 ◽  
Vol 602-604 ◽  
pp. 1369-1372 ◽  
Author(s):  
Kang Bi Luo ◽  
Hu Ping Li ◽  
Yan Xia Tan
Keyword(s):  
Hydrothermal Method ◽  
Calcium Chloride ◽  
Sodium Sulfate ◽  
Calcium Sulfate ◽  
Sulfate Solution ◽  
Solution Concentration ◽  
Raw Material ◽  
Molar Ratio ◽  
Feed Mode ◽  
Calcium Sulfate Whiskers

This article took the sodium sulfate and calcium chloride as the raw material and prepared calcium sulfate whiskers by hydrothermal method. The experimental results show that the calcium sulfate precursors are prepared by the reverse feed mode in which the sodium sulfate solution drop into the calcium chloride solution under the solution concentration 0.6 mol/L and the molar ratio of Na2SO4 to CaCl2 at 1:1.8. The precursors were placed in pH=6.12 hydrothermal environments and treated in the autoclave at 140 °C for 4 h to obtain the calcium sulfate whiskers having for the ratio of length to diameter at 97.5 and the better morphology.

Structural characteristic and formation mechanism of hemihydrate calcium sulfate whiskers prepared using FGD gypsum

Particuology ◽  
2021 ◽  
Author(s):  
Xiaoting Zhang ◽  
Lingwei Ran ◽  
Xiao Wang ◽  
Biao Jin ◽  
Jianwu Zhang ◽  
...  
Keyword(s):  
Structural Characteristic ◽  
Formation Mechanism ◽  
Calcium Sulfate ◽  
Fgd Gypsum ◽  
Calcium Sulfate Whiskers

scholarly journals Efficient activation of persulfate by calcium sulfate whisker supported nanoscale zero-valent iron for methyl orange removal

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 452-461
Author(s):  
Yi Han ◽  
Xian Zhou ◽  
Li Lei ◽  
Huiqun Sun ◽  
Zhiyuan Niu ◽  
...  
Keyword(s):  
Composite Material ◽  
Methyl Orange ◽  
Calcium Sulfate ◽  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron ◽  
Calcium Sulfate Whiskers ◽  
Calcium Sulfate Whisker

In order to improve the utilization of nanoscale zero-valent iron (nZVI) in activating persulfate (PS), a composite material of nZVI/CSW with nZVI supported on calcium sulfate whiskers (CSWs) was synthesized in this study.

Study of Calcium Sulfate Whiskers

2014 ◽  
Vol 26 (1) ◽  
pp. 17-20
Author(s):  
Xue-Hong Zhang ◽  
Lei Wang
Keyword(s):  
Calcium Sulfate ◽  
Calcium Sulfate Whiskers

Effect of Sodium Citrate on the Hydration Capacity of Hemihydrate Calcium Sulfate Whiskers

2014 ◽  
Vol 584-586 ◽  
pp. 1618-1621
Author(s):  
Yu Bin Wang ◽  
Le Yu ◽  
Hua Wang ◽  
Ting Shu He
Keyword(s):  
Calcium Sulfate ◽  
Sodium Citrate ◽  
Adsorption State ◽  
Calcium Sulfate Whiskers ◽  
Hydration Capacity

The influence of sodium citrate on the hydration capacity of hemihydrate calcium sulfate whiskers was investigated. The products were characterized by FTIR, SEM and XRD.The results show that the absorption of the sodium citrate on the surface of the hemihydrate calcium sulfate whiskers is not uniform, and the adsorption state also changed with the amount of sodium citrate. Sodium citrate plays role on the hydration capacity of hemihydrate calcium sulfate whiskers.

Crystal structure formation of hemihydrate calcium sulfate whiskers (HH-CSWs) prepared using FGD gypsum

Polyhedron ◽  
2019 ◽  
Vol 173 ◽  
pp. 114140 ◽  
Author(s):  
Xiaoting Zhang ◽  
Xiao Wang ◽  
Biao Jin ◽  
Xueping Liu ◽  
Liushuan Yang
Keyword(s):  
Crystal Structure ◽  
Structure Formation ◽  
Calcium Sulfate ◽  
Fgd Gypsum ◽  
Calcium Sulfate Whiskers ◽  
Crystal Structure Formation

A process for beneficiation of low-grade manganese ore and synchronous preparation of calcium sulfate whiskers during hydrochloric acid regeneration

2021 ◽  
Vol 199 ◽  
pp. 105533
Author(s):  
Mengen Lei ◽  
Baozhong Ma ◽  
Dongya Lv ◽  
Chengyan Wang ◽  
Edouard Asselin ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Calcium Sulfate ◽  
Low Grade ◽  
Manganese Ore ◽  
Calcium Sulfate Whiskers
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