转晶剂与蒸压参数对磷石膏制备α半水石膏的影响

doi:10.19964/j.issn.1006-4990.2021-0685

Abstract

Abstract:

The α-hemihydrate gypsum was obtained by autoclave method from phosphogypsum as raw materials that was treated with saline solution，using ethylenediamine tetraacetic acid（EDTA） and maleic anhydride as crystal modifier in experiment.The effect of the content of composite crystal modifier，pH value，and autoclave temperature on the crystal morphology and phase composition of α-hemihydrate gypsum were studied by scanning electron microscope（SEM） and X-ray diffraction analysis（XRD）.The test results showed that the optimum content of EDTA in the composite crystal modifier was 0.4%，the optimum content of maleic anhydride was 0.3%，the optimum pH value of the solution was 7.5，and the optimum autoclave temperature was 140 ℃.The obtained α-hemihydrate gypsum had the best crystalline form，with a short columnar shape and a length?to?diameter ratio close to 1∶1.

Key words: phosphogypsum, α-hemihydrate gypsum, crystal modifier, autoclave parameters

CLC Number:

TQ126.3

LI Mingchuan,WEI Jiazhan,CHEN Ping,DUAN Pengxuan. Effect of crystal modifier and autoclave parameters on preparation of α-hemihydrate gypsum from phosphogypsum[J]. Inorganic Chemicals Industry, 2022, 54(8): 132-137.

Figures/Tables 10

Table 1

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

References 18

1	罗东燕，邱树恒，陈霏，等.用蒸压法将磷石膏制备α半水石膏的研究［J］.新型建筑材料，2015，42（9）：23-26，46.
	LUO Dongyan， QIU Shuheng， CHEN Fei，et al.The research of using phosphogypsum manufacture of α-semi⁃hydrated gypsum by autoclaved method［J］.New Building Materials，2015，42（9）：23-26，46.
2	蒋建亚，张苏花，付旭东，等.磷化工废渣磷石膏的特性及其资源化利用［J］.山西建筑，2021，47（9）：1-4.
	JIANG Jianya， ZHANG Suhua， FU Xudong，et al.Characteristics and resource utilization of phosphogypsum from phosphorus chemi⁃
	mical waste［J］.Shanxi Architecture，2021，47（9）：1-4.
3	李纯，薛鹏丽，张文静，等.我国磷石膏处置现状及绿色发展对策［J］.化工环保，2021，41（1）：102-106.
	LI Chun， XUE Pengli， ZHANG Wenjing，et al.Disposal status of phosphogypsum in China and countermeasures for green development［J］.Environmental Protection of Chemical Industry，2021，41（1）：102-106.
4	耿庆钰，李建锡，韩伟明，等.磷石膏蒸压制备半水硫酸钙晶须［J］.人工晶体学报，2016，45（7）：1892-1897，1905.
	GENG Qingyu， LI Jianxi， HAN Weiming，et al.Preparation of calcium sulfate hemihydrate whisker by phosphogypsum autoclave method［J］.Journal of Synthetic Crystals，2016，45（7）：1892-1897，1905.
5	党春阁，郭亚静.磷石膏综合利用现状、问题及政策建议［C］∥中国环境科学学会.2020中国环境科学学会科学技术年会论文集（第二卷）.2020：1067-1071.
	DANG Chunge， GUO Yajing.Current Situation，problems and policy
	suggestions of comprehensive utilization of phosphogypsum［C］∥Chinese Society For Environmental Sciences.Proceedings of the 2020 Chinese Society for Environmental Sciences Science and Technology Annual Conference（Volume Ⅱ），2020：1067-1071.
6	段正洋，李建锡，郑书瑞，等.转晶剂对磷石膏制备α半水石膏影响的研究［J］.硅酸盐通报，2015，34（5）：1397-1401，1406.
	DUAN Zhengyang， LI Jianxi， ZHENG Shurui，et al.Study on medium crystal agent in preparation of α-hemihydrate gypsum with phosphogypsum［J］.Bulletin of the Chinese Ceramic Society，2015，
	34（5）：1397-1401，1406.
7	丁萌，李建锡，李兵兵.磷石膏制备α半水石膏的试验研究［J］.硅酸盐通报，2013，32（11）：2379-2384.
	DING Meng， LI Jianxi， LI Bingbing.Preparation of α-hemihydrate gypsum with posphogypsum［J］.Bulletin of the Chinese Ceramic Society，2013，32（11）：2379-2384.
8	何玉龙，陈德玉，蔡攀，等.晶形控制剂对α半水石膏结晶形态的调控研究［J］.人工晶体学报，2016，45（1）：192-199.
	HE Yulong， CHEN Deyu， CAI Pan，et al.Regulation of crystal morphology of α-hemihydrate gypsum in the presence of medium crystal agent［J］.Journal of Synthetic Crystals，2016，45（1）：192-199.
9	陈金文，易芸，张慧，等.蒸压参数与杂质对磷石膏制备α-半水石膏的影响［J］.无机盐工业，2022，54（3）：91-96.
	CHEN Jinwen， YI Yun， ZHANG Hui，et al.Effect of autoclave parameters and impurities on preparation of α-hemihydrate gypsum from phosphogypsum［J］.Inorganic Chemicals Industry，2022，54（3）：91-96.
10	沈金水，卢都友，许仲梓.EDTA对加压水热法制备α-半水磷石膏的影响［J］.硅酸盐通报，2015，34（10）：2816-2821.
	SHEN Jinshui， LU Duyou， XU Zhongzi.Effect of ethylenediaminetetraacetic acid on the preparation of α-hemihydrate gypsum from phosphogypsum with hydrothermal autoclave method［J］.Bulletin of the Chinese Ceramic Society，2015，34（10）：2816-2821.
11	刘金凤.工业磷石膏基α-半水石膏的制备及其浆体性能调控研究［D］.绵阳：西南科技大学，2019.
	LIU Jinfeng.Preparation of industrial phosphogypsum⁃based α-hemihydrate gypsum and regulation of its paste properties［D］.Mianyang：Southwest University of Science and Technology，2019.
12	马保国，茹晓红，邹开波，等.常压水热Ca-Na-Cl溶液中用磷石膏制备α-半水石膏［J］.化工学报，2013，64（7）：2701-2707.
	MA Baoguo， RU Xiaohong， ZOU Kaibo，et al.Preparation of α-calcium sulfate hemihydrate from phosphogypsum in Ca-Na-Cl solutions under atmospheric pressure［J］.CIESC Journal，2013，64（7）：2701-2707.
13	张稼祥，徐玲玲.EDTA对脱硫石膏制备α-半水石膏晶体生长的影响［J］.南京工业大学学报：自然科学版，2018，40（2）：90-94，131.
	ZHANG Jiaxiang， XU Lingling.Effects of EDTA on crystal growth of α-hemihydrate gypsum prepared by flue gas desulphurization gypsum［J］.Journal of Nanjing Tech University：Natural Science Edition，2018，40（2）：90-94，131.
	上接第 118 页）
	ence of P 2O5 and F on the clinker formation and cement performances［J］.Construction and Building Materials，2019，203：432- 442.
15	乔秀臣，马大伟，薛玉兵.煅烧硬石膏溶解特性对钙矾石形成的影响［J］.硅酸盐通报，2021，40（1）：201-206.
	QIAO Xiuchen， MA Dawei， XUE Yubing.Influence of calcined anhydrite solubility on the formation of ettringite［J］.Bulletin of the Chinese Ceramic Society，2021，40（1）：201-206.
16	龚晓强，刘杰胜，徐晶云，等.石灰改性磷石膏对水泥砂浆性能影响的研究［J］.武汉轻工大学学报，2019，38（1）：51-55，72.
	GONG Xiaoqiang， LIU Jiesheng， XU Jingyun，et al.Effect of lime⁃modified phosphogypsum on properties of cement mortar［J］.Journal of Wuhan Polytechnic University，2019，38（1）：51-55，72.
17	蔡开朗，廖其龙.钙矾石类膨胀剂膨胀效能的作用及机理研究［J］.非金属矿，2019，42（3）：48-51.
	CAI Kailang， LIAO Qilong.The expansion efficiency of ettringite type expansion agent and its mechanism［J］.Non-Metallic Mines， 2019，42（3）：48-51.
18	刘新，冯攀，沈叙言，等.水泥水化产物：水化硅酸钙（C-S-H）的研究进展［J］.材料导报，2021，35（9）：9157-9167.
	LIU Xin， FENG Pan， SHEN Xuyan，et al.Advances in the underst⁃
	anding of cement hydrate—Calcium silicate hydrate（C-S-H）［J］.Materials Reports，2021，35（9）：9157-9167.

[1]	LENG Manxi, ZHU Yu, YAN Jikang, XIE Ke, ZOU Yongjie. Study on crystallization characteristics and mineral flotation performance of industrial waste phosphogypsum [J]. Inorganic Chemicals Industry, 2025, 57(3): 108-115.
[2]	TAN Shanyi, WEN Huizi, HE Shuyu, ZHANG Liwen, CHEN Shaohua, XI Benjun. Study on leaching behavior and kinetics of phosphorus from phosphogypsum [J]. Inorganic Chemicals Industry, 2025, 57(2): 105-112.
[3]	TANG Kaijing, LIU Chuanbei, LI Yingding, JIANG Yong, WU Junnan, ZHANG Tao. Research on preparation and mechanism of superhydrophobic phosphogypsum products [J]. Inorganic Chemicals Industry, 2025, 57(1): 97-102.
[4]	TANG Xuemei, WANG Meibo, XU Li, ZHANG Xujie, TAI Shijun, YI Xianmei, LIU Hongjuan, PAN Linyi. Study on whitening of phosphogypsum by low⁃temperature calcination [J]. Inorganic Chemicals Industry, 2024, 56(8): 110-115.
[5]	SUN Lan, CHEN Shiying, YANG Liuxu, NIU Yiming, ZHAO Aonan. Basic study on fixing soluble phosphorus in phosphogypsum with magnesium slag [J]. Inorganic Chemicals Industry, 2024, 56(8): 92-98.
[6]	HU Cheng, LIU Meng, XIANG Weiheng, CHEN Ping, WANG Neng, LU Guanju, ZHOU Jinlan. Preparation of α-hemihydrous gypsum from CaCl₂ and MgCl₂ and their composite solution [J]. Inorganic Chemicals Industry, 2024, 56(7): 112-117.
[7]	HU Dian, GUO Ze, ZHANG Hanquan, LU Manman. Research on effects of roasting process and typical impurities on reduction and decomposition process of phosphogypsum [J]. Inorganic Chemicals Industry, 2024, 56(7): 88-95.
[8]	HU Cheng, LIU Meng, XIANG Weiheng, DUAN Pengxuan, LI Shunkai, MING Yang, WANG Neng, LU Guanju. Effect of NaCl solution concentration on transcrystallization behavior of α-hemihydrate gypsum from phosphogypsum [J]. Inorganic Chemicals Industry, 2024, 56(6): 87-93.
[9]	TU Yanping, BAI Dengxian, CHENG Shukai, XIE Junjie, HUANG Zhiliang, CHEN Guofu. Effect of high temperature modification of mineral powder and quicklime on properties of phosphogypsum cement based materials [J]. Inorganic Chemicals Industry, 2024, 56(6): 94-101.
[10]	WANG Mingshun, AO Xianquan, YUAN Xing, DONG Wenyan, CHEN Qianlin. Study on effect of crystallizer on preparation of anhydrous calcium sulfate from phosphogypsum [J]. Inorganic Chemicals Industry, 2024, 56(5): 101-107.
[11]	DENG Fuli, XIA Zhixiang, LONG Bingwen, ZHANG Yi, DAI Yafen, WANG Bin, DING Yigang. Study on purification process of phosphogypsum by reverse flotation [J]. Inorganic Chemicals Industry, 2024, 56(5): 115-120.
[12]	WANG Peixiong, GONG Xiaomei, DING Jiaqi, CAO Hong. Effect of crystal modifier on preparation of α-hemihydrates gypsum from industrial gypsum [J]. Inorganic Chemicals Industry, 2024, 56(4): 112-117.
[13]	CHEN Feng, FENG Kang, LI Ming, SHEN Haojie, TIAN Chengtao, TANG Yuan, LI Zhili, HE Dongsheng. Application of organically modified calcium sulfate whiskers in asphalt modification [J]. Inorganic Chemicals Industry, 2024, 56(3): 125-130.
[14]	WANG Ruting, ZHAO Xiaorong, HUANG Xuquan, WANG Haojie, XUE Fei, CAI Jiawei. Research on preparation and early performance of mixed phase phosphogypsum-based cementing materials [J]. Inorganic Chemicals Industry, 2024, 56(3): 98-104.
[15]	ZHANG Guidong, YANG Xuejiao, GUO Xudong, YANG Lin. Study on hydration properties of type Ⅱ anhydrite prepared by calcination and atmospheric acidification [J]. Inorganic Chemicals Industry, 2024, 56(2): 104-110.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Effect of crystal modifier and autoclave parameters on preparation of α-hemihydrate gypsum from phosphogypsum

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 18

Related Articles 15

Metrics

Comments

Recommended 0