Preparation of Hemihydrate Calcium Sulfate Whisker with Phosphogypsum by Adding CaSO4·2H2O as Crystal Seed

Abstract

Abstract: Hemihydrate calcium sulfate whiske were prepared from phosphogypsum, which is phosphate mining enterprises produce waste slag, by raditional normal pressure alcohol hydrothermal method adding CaSO₄ · 2H₂O as crystal seed. In order to find the optimum preparation conditions, the effects of seed content, glycerol content and phosphogypsum mass fraction on the structure and morphology of whiskers were investigated by single factor test. These samples were characterized by SEM and XRD. The results show that the aspect ratio of the whisker prepared with CaSO₄·2H₂O crystal seed (49.29) is 30.99, which is about 60% higher than that prepared with glycerol. When the volume ratio (V) of glycerol to water is 1, the content of seed is 1%, and the mass fraction of phosphogypsum is 5%, the average diameter of prepared whiskers is 0.65 μm, the aspect ratio is 62.15, and the size of whiskers is uniform. These results indicate that hemihydrate calcium sulfate whisker with high aspect ratio and uniform size can be prepared by adding 1%CaSO₄·2H₂O seed, glycerol with V of 1 and phosphogypsum with mass fraction of 5% under atmospheric pressure.

Key words: phosphogypsum, hemihydrate calcium sulfate whisker, glycerol, hydrothermal method, crystal seed, aspect ratio, technological parameter

CLC Number:

TQ11

YANG Hongyan, OUYANG Junyao, XIA Die, GU Xuemei, YANG Shan, WANG Wei. Preparation of Hemihydrate Calcium Sulfate Whisker with Phosphogypsum by Adding CaSO₄·2H₂O as Crystal Seed[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(2): 309-315.

References

[1] ZHANG X T, RAN L W, WANG X, et al. Structural characteristic and formation mechanism of hemihydrate calcium sulfate whiskers prepared using FGD gypsum[J]. Particuology, 2022, 62: 98-103.
[2] CHEN S, FU J J, HE X Y, et al. Microemulsion synthesis of anhydrous calcium sulfate nanowhiskers with calcium acetate solution and its surface structure stable and crystal phase evolution after modification[J]. Journal of Nanoparticle Research, 2020, 22(7): 1-11.
[3] ZHANG Y F, LIN X F, LI Y, et al. Synergistic nucleation effect of calcium sulfate whisker and β-nucleating agent dicyclohexyl-terephthalamide in isotactic polypropylene[J]. Journal of Thermal Analysis and Calorimetry, 2020, 139(1): 343-352.
[4] ZAREI M M, HOSSEINI M, MOHAMMADI A H, et al. Model development for estimating calcium sulfate dihydrate, hemihydrate, and anhydrite solubilities in multicomponent acid and salt containing aqueous solutions over wide temperature ranges[J]. Journal of Molecular Liquids, 2021, 328: 115473.
[5] CHEN X J, YANG L C, ZHANG J F, et al. Exploration of As(Ⅲ)/As(Ⅴ) uptake from aqueous solution by synthesized calcium sulfate whisker[J]. Chinese Journal of Chemical Engineering, 2014, 22(11/12): 1340-1346.
[6] FANG D A, LIAO X, ZHANG X F, et al. A novel resource utilization of the calcium-based semi-dry flue gas desulfurization ash: as a reductant to remove chromium and vanadium from vanadium industrial wastewater[J]. Journal of Hazardous Materials, 2018, 342: 436-445.
[7] YIN S S, YANG L C. α or β-hemihydrates transformed from dihydrate calcium sulfate in a salt-mediated glycerol-water solution[J]. Journal of Crystal Growth, 2020, 550(2): 125885.
[8] ROSALES J, PÉREZ S M, CABRERA M, et al. Treated phosphogypsum as an alternative set regulator and mineral addition in cement production[J]. Journal of Cleaner Production, 2020, 244: 118752.
[9] VINNICHENKO V, RIAZANOV A. Environmental problems of phosphogypsum utilization[J]. Key Engineering Materials, 2020, 864: 108-114.
[10] CHEN Q S, SUN S Y, LIU Y K, et al. Immobilization and leaching characteristics of fluoride from phosphogypsum-based cemented paste backfill[J]. International Journal of Minerals, Metallurgy and Materials, 2021, 28(9): 1440-1452.
[11] STAWSKI T M, FREEMAN H M, VAN DRIESSCHE A E S, et al. Particle-mediated nucleation pathways are imprinted in the internal structure of calcium sulfate single crystals[J]. Crystal Growth & Design, 2019, 19(7): 3714-3721.
[12] HONG T Z, LV Z H, LIU X, et al. A novel surface modification method for anhydrite whisker[J]. Materials & Design, 2016, 107: 117-122.
[13] DUAN Z Y, LI J X, LI T G, et al. Influence of crystal modifier on the preparation of α-hemihydrate gypsum from phosphogypsum[J]. Construction and Building Materials, 2017, 133: 323-329.
[14] 谢晴,蒋美雪,彭同江,等.磷石膏常压酸化法制备无水硫酸钙晶须的实验研究[J].人工晶体学报,2019,48(6):1060-1066+1071.
XIE Q, JIANG M X, PENG T J, et al. Experimental study on preparation of anhydrous calcium sulfate whisker by phosphogypsum at atmospheric acidification method[J]. Journal of Synthetic Crystals, 2019, 48(6): 1060-1066+1071(in Chinese).
[15] DONG F Q, LIU J F, TAN H B, et al. Preparation of calcium sulfate hemihydrate and application in polypropylene composites[J]. Journal of Nanoscience and Nanotechnology, 2017, 17(9): 6970-6975.
[16] 张芷绮,赵志曼,全思臣,等.不同粒径洁净磷石膏晶须成形的研究[J].非金属矿,2020,43(6):90-93.
ZHANG Z Q, ZHAO Z M, QUAN S C, et al. Study on the formation of clean phosphogypsum whiskers with different particle size ranges[J]. Non-Metallic Mines, 2020, 43(6): 90-93(in Chinese).
[17] CHEN Q S, WU L C, ZENG Y X, et al. Formation of spherical calcium sulfate mesocrystals: orientation controlled by subunit growth[J]. CrystEngComm, 2019, 21(39): 5973-5979.
[18] 高传慧,董亚洁,任秀,等.半水硫酸钙晶须的水化机理及稳定性调节(英文)[J].无机化学学报,2020,36(5):908-920.
GAO C H, DONG Y J, REN X, et al. Hydration mechanism and stability regulation of hemihydrate calcium sulfate whiskers[J]. Chinese Journal of Inorganic Chemistry, 2020, 36(5): 908-920.
[19] MI Y, CHEN D Y, WANG A W. Effects of phosphorus impurities on the preparation of α-calcium sulfate hemihydrate from waste phosphogypsum with the salt solution method under atmospheric pressure[J]. CrystEngComm, 2019, 21(16): 2631-2640.
[20] PRETURLAN J G D, VIEILLE L, QUILIGOTTI S, et al. Kinetics and mechanism of the dehydration of calcium sulfate dihydrate: a comprehensive approach for studying the dehydration of ionic hydrates under controlled temperature and water vapor pressure[J]. The Journal of Physical Chemistry C, 2020, 124(48): 26352-26367.

Preparation of Hemihydrate Calcium Sulfate Whisker with Phosphogypsum by Adding CaSO₄·2H₂O as Crystal Seed

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