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首页> 外文期刊>RSC Advances >Aspect ratio-controlled preparation of alpha-CaSO4 center dot 0.5H(2)O from phosphogypsum in potassium tartrate aqueous solution
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Aspect ratio-controlled preparation of alpha-CaSO4 center dot 0.5H(2)O from phosphogypsum in potassium tartrate aqueous solution

机译：纵横比对钾水溶液中磷酸磷溶液的α-Caso4中心点0.5H（2）o的α-Caso4中心点的制备

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摘要

In this study, a simple and efficient strategy is developed to synthesize rod-shaped alpha-CaSO4 center dot 0.5H(2)O crystals with tunable aspect ratio from industrial phosphogypsum only in potassium tartrate aqueous solution at a low temperature. Industrial phosphogypsum can be effectively converted into rod-shaped alpha-CaSO4 center dot 0.5H(2)O crystals with the assistance of potassium tartrate, and the aspect ratio of alpha-CaSO4 center dot 0.5H(2)O crystals gradually decreases from 52 : 1 to 1 : 1 with increasing the concentration of potassium tartrate. The formation process of the rod-shaped alpha-CaSO4 center dot 0.5H(2)O crystals in this system involves the dissolution of CaSO4 center dot 2H(2)O and nucleation of alpha-CaSO4 center dot 0.5H(2)O crystals. The tartrate ions from potassium tartrate in this system preferentially bind to (001) and (002) facets of alpha-CaSO4 center dot 0.5H(2)O crystals, inhibiting the growth of alpha-CaSO4 center dot 0.5H(2)O crystals along the c-axis and controlling its morphology and aspect ratio.
机译：在该研究中，开发了一种简单而有效的策略，以合成棒状α-CASO4中心点0.5H（2）o晶体，其仅在低温下在酒桶水溶液中的工业磷光膏的可调纵横比。在酒石酸钾的辅助下，工业磷酸缺口可以有效地转化为棒状α-CasO4中心点0.5H（2）o晶体，并且α-CasO4中心点0.5h（2）o晶体的纵横比从52逐渐减少：1至1：1随着酒石酸钾浓度的增加。该系统中的棒状α-Caso4中心点0.5h（2）o晶体的形成过程涉及CasO4中心点2h（2）o的溶解和α-Caso4中心点0.5h（2）o晶体的核心。来自该系统的酒石酸钾的酒石酸酯离子优先结合（001）和（002）刻面的α-CASO4中心点0.5H（2）O晶体，抑制α-CasO4中心点0.5h（2）O晶体的生长沿着C轴并控制其形态和纵横比。

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  • 来源
    《RSC Advances》 |2019年第38期|共7页
  • 作者

    Sun Xiangbin; Zhang Genlei; Cui Peng;

  • 作者单位

    Hefei Univ Technol Anhui Prov Key Lab Controllable Chem React &

    Mat Sch Chem &

    Chem Engn Tunxi Rd 193 Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Anhui Prov Key Lab Controllable Chem React &

    Mat Sch Chem &

    Chem Engn Tunxi Rd 193 Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Anhui Prov Key Lab Controllable Chem React &

    Mat Sch Chem &

    Chem Engn Tunxi Rd 193 Hefei 230009 Anhui Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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