H2SO4-NaCl-H2O体系中滤液循环利用对脱硫石膏晶须制备的影响

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (9): 3202-3207.

H₂SO₄-NaCl-H₂O体系中滤液循环利用对脱硫石膏晶须制备的影响

刘强¹, 汪潇², 金彪², 林星彤³, 张建武², 王宇斌³

1.中赟国际工程有限公司,郑州 450007;
2.河南城建学院材料与化工学院,平顶山 467036;
3.西安建筑科技大学资源工程学院,西安 710055

收稿日期:2022-05-06 修回日期:2022-06-22 出版日期:2022-09-15 发布日期:2022-09-27
通讯作者: 汪潇,博士,副教授。E-mail:wx407@126.com
作者简介:刘强(1981—),男,高级工程师。主要从事环境工程、固废利用及生态修复的研究。E-mail:63629728@qq.com
基金资助:
河南省重大公益专项(201300311000);国家自然科学基金面上项目(51674097,51974218);河南城建学院工业副产石膏资源化创新团队资助项目(K-X2020020)

Effect of Filtrate Circulation on Preparation of Desulfurization Gypsum Whiskers in H₂SO₄-NaCl-H₂O System

LIU Qiang¹, WANG Xiao², JIN Biao², LIN Xingtong³, ZHANG Jianwu², WANG Yubin³

1. Zhongyun International Engineering Co., Ltd., Zhengzhou 450007, China;
2. School of Chemical & Material Engineering, Henan University of Urban Construction, Pingdingshan 467036, China;
3. School of Resources Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China

Received:2022-05-06 Revised:2022-06-22 Online:2022-09-15 Published:2022-09-27

摘要/Abstract

摘要： 为实现脱硫石膏晶须的绿色生产,以预处理后的脱硫石膏为原料,使用硫酸调节反应溶液pH值,通过水热法制备脱硫石膏晶须,通过在有、无试剂补偿条件下滤液的循环利用,研究滤液循环次数对晶须品质、溶液pH值、Na⁺浓度的影响。结果表明,在无试剂补偿条件下,随滤液循环次数增加,滤液pH值逐渐升高,Na⁺浓度逐渐降低,浓度损失为27.3%~34.6%。在有H₂SO₄和NaCl试剂补偿的条件下,滤液循环次数对反应前后溶液中Ca²⁺浓度变化影响不大,但对晶须结晶形貌、长径比、品质有一定的影响;当滤液循环次数小于5次时,获得的晶须品质相对较好。

关键词: 脱硫石膏, 晶须, 滤液循环, 试剂补偿, 水热法, 绿色生产

Abstract: The pretreated desulfurization gypsum was used as raw material,the sulfuric acid was used to adjust the pH value of the reaction solution, and the desulfurization gypsum whiskers were prepared by hydrothermal method to realize green production. Through the recycling of filtrate with or without reagent compensation, the effect of cycle number of filtrate on the quality of whiskers, pH value of solution and concentration of Na⁺ was studied. The results show that, with the increase of cycle number of filtrate, the pH value of filtrate gradually increases, but the concentration of Na⁺ decreases and its loss is from 27.3% to 34.6% in the condition of no reagent compensation. When H₂SO₄ and NaCl are used to compensate the reaction solution, the effect of cycle number of filtrate on the concentration of Ca²⁺ is slight before and after reaction. However, the cycle number of filtrate has an obviously effect on the crystal morphology, aspect ratio and quality of whiskers. When the cycle number of filtrate is less than 5, the quality of prepared whiskers is relatively good.

Key words: desulfurization gypsum, whisker, filtrate circulation, reagent compensation, hydrothermal method, green production

中图分类号:

TQ132.32

刘强, 汪潇, 金彪, 林星彤, 张建武, 王宇斌. H₂SO₄-NaCl-H₂O体系中滤液循环利用对脱硫石膏晶须制备的影响[J]. 硅酸盐通报, 2022, 41(9): 3202-3207.

LIU Qiang, WANG Xiao, JIN Biao, LIN Xingtong, ZHANG Jianwu, WANG Yubin. Effect of Filtrate Circulation on Preparation of Desulfurization Gypsum Whiskers in H₂SO₄-NaCl-H₂O System[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(9): 3202-3207.

参考文献

[1] 史培阳,邓志银,袁义义,等.利用脱硫石膏水热合成硫酸钙晶须[J].东北大学学报(自然科学版),2010,31(1):76-79.
SHI P Y, DENG Z Y, YUAN Y Y, et al. Preparation of calcium sulfate whiskers from desulphurized gypsum by hydrothermal synthesis[J]. Journal of Northeastern University (Natural Science), 2010, 31(1): 76-79 (in Chinese).
[2] 吴晓琴,裘建军.常压盐溶液法从烟气脱硫石膏制备硫酸钙晶须研究[J].武汉科技大学学报,2011,34(2):104-110.
WU X Q, QIU J J. Preparation of calcium sulfate whiskers from flue gas desulfurization gypsum in salt solution at atmospheric pressure[J]. Journal of Wuhan University of Science and Technology, 2011, 34(2): 104-110 (in Chinese).
[3] LUO K B, LI C M, XIANG L, et al. Influence of temperature and solution composition on the formation of calcium sulfates[J]. Particuology, 2010, 8(3): 240-244.
[4] 王宇斌.硫酸钙晶须晶型稳定化研究[D].沈阳:东北大学,2008.
WANG Y B. Study on the stabilization of crystalline phase of calcium sulfate whiskers[D]. Shenyang: Northeastern University, 2008 (in Chinese).
[5] 何花,董发勤,何平.混合助晶剂促进大长径比硫酸钙晶须的调控研究[J].人工晶体学报,2012,41(6):1679-1685.
HE H, DONG F Q, HE P. Regulation preparation of large aspect ratio calcium sulfate whisker in the presence of mixed crystallization promoting agents[J]. Journal of Synthetic Crystals, 2012, 41(6): 1679-1685 (in Chinese).
[6] HAMDONA S K, AL HADAD O A. Influence of additives on the precipitation of gypsum in sodium chloride solutions[J]. Desalination, 2008, 228(1/2/3): 277-286.
[7] HAMDONA S K, AL HADAD U A. Crystallization of calcium sulfate dihydrate in the presence of some metal ions[J]. Journal of Crystal Growth, 2007, 299(1): 146-151.
[8] SARGUT S T, SAYAN P, KIRAN B. Gypsum crystallization in the presence of Cr³⁺ and citric acid[J]. Chemical Engineering & Technology, 2010, 33(5): 804-811.
[9] GUAN B H, YANG L C, WU Z B. Effect of Mg²⁺ ions on the nucleation kinetics of calcium sulfate in concentrated calcium chloride solutions[J]. Industrial & Engineering Chemistry Research, 2010, 49(12): 5569-5574.
[10] WANG X, YANG L S, ZHU X F, et al. Preparation of calcium sulfate whiskers from FGD gypsum via hydrothermal crystallization in the H₂SO₄-NaCl-H₂O system[J]. Particuology, 2014, 17: 42-48.
[11] 汪潇,金彪,王宇斌,等.阴离子在脱硫石膏晶须水热结晶中的作用机理[J].高等学校化学学报,2020,41(3):473-480.
WANG X, JIN B, WANG Y B, et al. Interaction mechanism of anions in hydrothermal crystallization of desulfurization gypsum whiskers[J]. Chemical Journal of Chinese Universities, 2020, 41(3): 473-480 (in Chinese).
[12] 彭家惠,张建新,瞿金东,等.有机酸对α半水脱硫石膏晶体生长习性的影响与调晶机理[J].硅酸盐学报,2011,39(10):1711-1718.
PENG J H, ZHANG J X, QU J D, et al. Effect of organic acid on crystalline habit of α-hemihydrate desulfurization gypsum and its crystal modification mechanism[J]. Journal of the Chinese Ceramic Society, 2011, 39(10): 1711-1718 (in Chinese).
[13] 彭家惠,瞿金东,张建新,等.EDTA吸附特性及其对α半水脱硫石膏晶形的影响[J].材料研究学报,2011,25(6):566-572.
PENG J H, QU J D, ZHANG J X, et al. Adsorption characteristics of EDTA on α-hemihydrate desulfurization gypsum surface and its influence on crystal morphology[J]. Chinese Journal of Materials Research, 2011, 25(6): 566-572 (in Chinese).
[14] CHAROLA A E, PÜHRINGER J, STEIGER M. Gypsum: a review of its role in the deterioration of building materials[J]. Environmental Geology, 2007, 52(2): 339-352.
[15] 汪潇,杨留栓,朱新峰,等.湿法脱硫石膏颗粒特性与杂质赋存状况分析[J].环境科学与技术,2013,36(9):135-138.
WANG X, YANG L S, ZHU X F, et al. Analysis of particle characteristics and existing formation of the impurities in wet FGD gypsum[J]. Environmental Science & Technology, 2013, 36(9): 135-138 (in Chinese).
[16] 汪潇,杨留栓,王宇斌,等.脱硫石膏的提纯工艺及其提纯出的石膏原料:CN102616825A[P].2012-08-01.
WANG X, YANG L S, WANG Y B, et al. Purification process of desulfurized gypsum and its purified gypsum raw materials: CN102616825A[P]. 2012-08-01 (in Chinese).
[17] YANG L S, WANG X, ZHU X F, et al. Preparation of calcium sulfate whisker by hydrothermal method from flue gas desulfurization (FGD) gypsum[J]. Applied Mechanics and Materials, 2012, 268/269/270: 823-826.
[18] 汪潇.脱硫石膏制备硫酸钙晶须媒晶剂的筛选及作用机理研究[D].武汉:华中科技大学,2014.
WANG X. Selection of the crystal modifier in the preparation of calcium sulfate whisker from the FGD gypsum and its mechanism[D]. Wuhan: Huazhong University of Science and Technology, 2014 (in Chinese).
[19] HOU S C, WANG J, WANG X X, et al. Effect of Mg²⁺ on hydrothermal formation of α-CaSO₄·0.5H₂O whiskers with high aspect ratios[J]. Langmuir: the ACS Journal of Surfaces and Colloids, 2014, 30(32): 9804-9810.
[20] 汪潇,金彪,张小婷,等.氯盐体系下阳离子对脱硫石膏晶须水热结晶的影响及其机理[J].化工进展,2022,41(7):3957-3965.
WANG X, JIN B, ZHANG X T, et al. Effect of cation on hydrothermal crystallization of desulfurized gypsum whiskers in chloride system and its mechanism[J]. Chemical Industry and Engineering Progress, 2022, 41(7): 3957-3965 (in Chinese).

H₂SO₄-NaCl-H₂O体系中滤液循环利用对脱硫石膏晶须制备的影响

Effect of Filtrate Circulation on Preparation of Desulfurization Gypsum Whiskers in H₂SO₄-NaCl-H₂O System

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	黄佳, 金应荣, 杨华琳, 陈伟, 李玉玲, 王志杰. 碱性条件下钛石膏晶须生长工艺及机理分析[J]. 硅酸盐通报, 2022, 41(8): 2828-2835.
[2]	张玉斌, 鲍世辉, 张聪. 混杂纤维增强超高性能透水混凝土的弯曲性能研究[J]. 硅酸盐通报, 2022, 41(6): 1955-1962.
[3]	武春夏, 杨正波, 李帆, 陈红霞, 何健辉, 张晓菲, 杨露. Q相对脱硫石膏氯离子固化和抗压强度的影响[J]. 硅酸盐通报, 2022, 41(5): 1758-1764.
[4]	曹永丹, 赵天悦, 曹钊, 张金山, 董红娟. 脱硫石膏制备硫酸钙晶须的试验研究[J]. 硅酸盐通报, 2022, 41(5): 1765-1773.
[5]	李云云, 梁文特, 倪文, 牟欣丽, 李玥, 樊康. 钢渣尾泥-矿渣-脱硫石膏三元体系水化硬化特性[J]. 硅酸盐通报, 2022, 41(2): 536-544.
[6]	王波, 段晓波, 邓丽荣, 王嘉博, 陆树河, 王晓刚. β-SiC粉体中常见金属杂质的亚临界水热去除工艺[J]. 硅酸盐通报, 2021, 40(8): 2713-2718.
[7]	胡其国, 刘莹, 邵晴, 李济. 莫来石晶须前驱体原位增强海胆状莫来石材料的性能研究[J]. 硅酸盐通报, 2021, 40(5): 1679-1684.
[8]	陆鹏飞, 许光文, 崔彦斌, 武荣成. 轮胎半焦制备碳化硅晶须的研究[J]. 硅酸盐通报, 2021, 40(3): 951-956.
[9]	王波, 段晓波, 邓丽荣, 陆树河, 王晓刚, 白枭. β-SiC粉体Si杂质的亚临界水热去除工艺[J]. 硅酸盐通报, 2021, 40(2): 591-596.
[10]	柳京育, 单俊鸿, 李春, 闵江宁, 杜礼, 周媛. 脱硫石膏基无砂自流平砂浆的制备与性能研究[J]. 硅酸盐通报, 2021, 40(11): 3654-3661.
[11]	陈海军, 徐恩霞, 李淼, 高金星, 葛铁柱. 热处理温度对ZrO₂纤维复合ZrO₂-C材料性能的影响[J]. 硅酸盐通报, 2021, 40(10): 3219-3225.
[12]	尚佳琪, 刘浩, 王周福, 杨智谦, 陈森娜, 马妍, 王玺堂. 硼酸铝-六钛酸钾晶须复合隔热材料制备与性能[J]. 硅酸盐通报, 2021, 40(10): 3273-3278.
[13]	王文凯, 谭涓, 王诗涵, 邱鑫. 高硅铝比小晶粒NaY分子筛/高岭土复合物的合成及其催化裂化性能[J]. 硅酸盐通报, 2021, 40(10): 3479-3489.
[14]	时军;王晶;史忠祥;戴丽静. 表面活性剂对YMn2O5粉体微观形貌的影响[J]. 硅酸盐通报, 2020, 39(9): 3001-3007.
[15]	冯驸;胡超;张苏萌;刘佳衡;胡盛;周红艳;胡卫兵. 透明质酸对脱硫石膏制备高分散性α-半水石膏形貌和强度的影响[J]. 硅酸盐通报, 2020, 39(6): 1842-1847.