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The plan proposes to achieve a comprehensive utilization rate of 65% of phosphogypsum by 2026, establish a number of phosphogypsum comprehensive utilization demonstration projects, cultivate a group of professional leading enterprises, and build 10 characteristic industrial bases for phosphogypsum comprehensive utilization in Yunnan, …
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： Technical specification for mine filling of comprehensive utilization with phosphogypsum. ：. ... 、、、、、 …
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the phosphogypsum "production by use" policy, represented by Guizhou Province, from the reduction of incremental and stockpile reduction, all-round phosphogypsum consumption, to accelerate the comprehensive utilization of phosphogypsum has put forward new requirements. An enterprise in Yunnan is the largest high concentration
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According to the Phosphogypsum Leadership Innovation Partnership report published by the International Fertilizer Association (IFA) in 2020, the primary pathways for the comprehensive …
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The invention relates to a method of using two solid wastes gangue and ardealite in the coal and P chemical production to produce acid making raw material-high concentration SO2 smoke and high intensity cement raw material, belonging to the field of coal and P chemical synthesic utilization, batching dry and ball-milled ardealite and gangue in the mass quality of 1-10 to 1 …
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Phosphogypsum (PG), a byproduct during the phosphoric acid production process, also known as the wet process, contains complex and diverse impurities, resulting in low utilization and considerable accumulation. This leads to a massive waste of land resources and a series of environmental pollution problems.
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： Phosphogypsum is the industrial waste in the production process of phosphor fertilizer industry.It is one of the largest solid waste in chemical industry emissions.The current domestic accumulation of phosphogypsum has been more than 120 million tons.It is produced over 50 million tons this year.Except for comprehensive used out of about 10 percent,it is increasing …
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Except for a few resource-scarce countries like Japan and Belgium, where the comprehensive utilization rate of phosphogypsum exceeds 90%, the majority is still primarily stockpiled . As the world's largest …
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Phosphogypsum produced by phosphorus chemical industry is the bulk industrial solid waste. The impurities would reduce the performance of β−hemihydrate gypsum that was prepared from phosphogypsum. In this study, phosphogypsum was purified by flotation method, and the performance of β−hemihydrate gypsum prepared from phosphogypsum …
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Phosphorus chemical companies in China are primarily clustered within phosphorus-rich provinces like Sichuan, Hubei, Guizhou, and Yunnan, with an annual …
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Kunming University of Science and Technology, Faculty of Environmental Science and Engineering, 650500 Kunming, China ... This comprehensive review on thermodynamic analysis in phosphogypsum …
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Phosphogypsum has poor cementitious activity, which hinders its large consumption in the field of building materials. By studying the phase and microstructure of phosphogypsum pretreated by alkali activation, and the compressive strength, and microstructure of the non-sintering building materials prepared with the high content …
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Phosphogypsum (PG), a byproduct during the phosphoric acid production process, also known as the wet process, contains complex and diverse impurities, resulting in low utilization and considerable accumulation. …
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Correction to: Characteristic pollutant purification analysis of modified phosphogypsum comprehensive utilization. Correction; Published: 08 September 2022; Volume 29, page 70608, (2022) Cite this article; Download PDF. Environmental ...
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Yang Peihao, The comprehensive utilization of phosphogypsum[J]. China resources comprehensive utilization 2009,27(1):13-15. ... Think about the utilization of phosphogypsum in yunnan province[J ...
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Phosphogypsum produced by phosphorus chemical industry is the bulk industrial solid waste. The impurities would reduce the performance of β−hemihydrate gypsum that was prepared from phosphogypsum. In this study, phosphogypsum was purified by flotation method, and the performance of β−hemihydrate gypsum prepared from phosphogypsum before and after …
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[3] Yan Chao, Peng Qiugui, Zhu Miao. Review of comprehensive utilization and impurity removal methods of phosphogypsum. Phosphate Fertilizer and Compound Fertilizer, 2023, 38(2): 27-33. [4] Zhou Miaoqin, Tao Snow, Liao fast. Research progress on phosphogypsum production and emission and resource utilization. Yunnan Chemical Industry, 2022, 49 ...
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Zhang J, Xie WM, Dong XB et al (2023) Research Progress on Comprehensive Utilization of Phosphogypsum for Materials: a Review. Mater Rev 37(8B):1005-023X(2023)37:8B < 22010110:LSGCLH > 2.0.TX;2–2 Zhang XX (2023) Adsorption behavior and mechanism of heavy metal ions in geopolymers.
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Guizhou province has implemented "planning production by slag amount", driving enterprises to determine production based on the amount of phosphogypsum produced in the current year, leading to a 24% increase in the comprehensive utilization rate of phosphogypsum resources in 2018 . However, challenges remain in terms of low profit and ...
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Gypsum with Yunnan Phosphogypsum . Chen-Xi DU. 1,a,*, Zhi-Man ZHAO. 2,b, Shuai LI. 3,c, Zhi-Yu LIU. 4,d. 1. Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, ... The impurities affects the comprehensive utilization …
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There were 346 sources of articles on the comprehensive utilization of phosphogypsum from 1985 to 2021. Construction and building materials ranked first with 70 …
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The massive accumulation of phosphogypsum will not only bring economic burden to the enterprise, but also pollute the environment. The types of impurities in phosphogypsum and their pretreatment methods were expounded, phosphorus and fluorine impurities can be removed by water washing, acid-base neutralization, sieving, calcination, etc., and organic impurities are …
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The comprehensive utilization of phosphogypsum, a by-product of wet phosphoric acid processing, is a global problem (Yongzhi 2009). Most countries have long employed natural disposal methods for it. In recent years, with the implementation of the phosphogypsum "production by use" policy, represented by Guizhou Province, from the …
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ZHU Zhiwei, HE Dongsheng, CHEN Fei, ZHANG Kecheng, WANG Qianyuan, ZHANG Zeqiang. Research Progress on Pretreatment and Comprehensive Utilization of Phosphogypsum …
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Phosphogypsum (PG) is a by-product produced during the wet process of phosphoric acid (H3PO4) production from natural phosphate rocks. Approximately 4–6 tons of …
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As phosphogypsum constitutes a large amount of solid waste material, its purification treatment and comprehensive utilization have close connection with economic development and ecological environmental …
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Phosphogypsum (PG), a byproduct during the phosphoric acid production process, also known as the wet process, contains complex and diverse impurities, resulting in low utilization and considerable accumulation. This leads to a massive waste of land resources and a series of environmental pollution problems. Given the current urgent ecological and environmental …
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A review on comprehensive utilization and pretreatment method of phosphogypsum: BAI Ping, HU Jun-song, LIANG Ao-lan, GAO Hong Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650504, China ... A review on comprehensive utilization and pretreatment method of phosphogypsum[J]. Modern …
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1. Introduction. China is the world's largest phosphate fertilizer producer and has become the world's largest phosphogypsum resource by-product country, with annual production in phosphogypsum of about 75 million tons, but the comprehensive utilization rate is about 45% only; as the accumulated stockpile has reached 830 million tons, which takes up …
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