Yunnan Phosphogypsum Comprehensive Utilization

Yunnan Phosphogypsum Comprehensive Utilization

A Novel Process to Recover Gypsum from Phosphogypsum

The comprehensive utilization rate of phosphogypsum is low owing to the various complex impurities and the difficult occurrence state Presently the main separation and purification methods for phosphogypsum are as follows Phosphorus and fluorine in phosphogypsum are largely soluble in water

Experimental Study on Pretreatment of Preparing Phosphorus Building

Download Citation On Jan 1 2024 Chen Xi Du and others published Experimental Study on Pretreatment of Preparing Phosphorus Building Gypsum with Yunnan Phosphogypsum Find read and cite all

Research Progress on Resource Utilization of Phosphogypsum

The application of phosphogypsum in the fields of cement retarder building materials agriculture the production of sulfuric acid co production cement soil improver storage and backfill treatment were comprehensively summarized

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Phosphogypsum Resource Utilization Based on Thermodynamic Analysis

The optimal conditions and mechanisms to utilize phosphogypsum for its products CaS CaO and CaCO 3 are summarized This comprehensive review on thermodynamic analysis in phosphogypsum resource utilization for the mentioned products is valuable for academicians scientists and researchers

Analysis of Stockpiling and Comprehensive Utilization of Phosphogypsum

This article focused on the stockpiling and comprehensive utilization of phosphogypsum in current phosphate fertilizer industry The advantages and disadvantages of these two disposal methods were analyzed respectively The phosphogypsum treatment and disposal trend in the future were briefly analyzed Download CAJ format

PDF Experimental Study on Pretreatment of Preparing Phosphorus Building

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 of phosphogypsum such as

Comprehensive utilization of phosphogypsum requires a two pronged approach

Professor Peng Jiahui of Chongqing University introduced that the current mainstream technology to solve the comprehensive utilization of phosphogypsum—phosphorus building gypsum prepared by the low temperature fast firing method and the product performance is unstable and there are soluble phosphorus soluble fluorine etc

Frontiers Research on formulation optimization and hydration

the results show that when the content of quicklime is %% the content of phosphogypsum is 30% 33% the content of naoh is %% the content of glauber s salt is % 3% the average particle size is μm and grinding aids and an early strengthening agent were added and in the case of the strengthening agent the 3 days and …

[PDF] Experimental Study on Pretreatment of Preparing Phosphorus

The needs of phosphogypsum for experiments are all from Yunnan Da Huanglin company that annually product phosphogypsum about 4 5 million tons Phosphogypsum is a by product of phosphorus industry containing phosphorus fluorine and organic impurities The impurities affects the comprehensive utilization of phosphogypsum such as fluorine

Phosphogypsum Stacks Florida Poly

To be most protective of human health however the EPA has set the 10 pCi/g limit for phosphogypsum use This limit is based on the dose of radiation the EPA calculated that a person might receive under a series of scenarios in which phosphogypsum could be used Most of the scenarios of use fell within EPA acceptable risk limits

Phosphogypsum An Industrial Byproduct with Value

Phosphogypsum is a by product of the phosphates industry Produced in significant quantities the material is considered a waste in the US due to radioactivity where the primary means of management is storage in stacks But around the world phosphogypsum is increasingly being utilized in beneficial reuse applications with research

Use of untreated phosphogypsum as a raw material for autoclaved aerated

Therefore more and more attention has been paid to the PG comprehensive utilization Considering all above finding a novel method that can be directly used to use the untreated PG in building materials is of great significance Utilization of solidified phosphogypsum as Portland cement retarder J Mater Cycles Waste Manag 14 2024

A Comprehensive Census of Microbial Diversity in Hot Springs of PLOS

In this study we report a comprehensive cultivation independent census of microbial communities in 37 samples collected from these geothermal fields encompassing sites ranging in temperature from to °C in pH from to and in mineralogy from silicates in Rehai to carbonates in Ruidian

Comprehensive effects of grain size modification of electrolytic

Comprehensive effects of grain size modification of electrolytic manganese residue on deep dehydration performance and microstructure of sludge Hubei Province Enterprise college Cooperation Innovation Center for Comprehensive Utilization of Phosphogypsum Yichang 443002 China Electronic address hxq

Phosphogypsum production and utilization in China IOPscience

Phosphogypsum PG is a radioactive industrial by product produced in large quantities when processing phosphate ores into fertilizers With rapid growth of high concentration phosphate and compound fertilizers production in China PG production is increasing every year Yang P H 2024 China Resources Comprehensive Utilization 1 13 15

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Yibin city areasshould docking extending southward publicservices promote mineralresources NortheastYunnan expand our economic hinterland driving synchronous lifting Sichuan Yunnan Guizhouborder area urbanaxis mineralresource advantages focus advancedtechnology comprehensive utilization higherenergy new building materials chemical

PDF Phosphogypsum production and utilization in China

Utilization approaches of PG are put forward in this document in order to provide the scientific support for the effective utilization Production of phosphate fertilizers in Yunnan Guizhou

Some suggestions about phosphogypsum utilization in Yunnan province

The utilization of phosphogypsum is imperative as it is one of the bottle necks for the development of Chinese phosphate compound of phosphogypsum and China′s current utilization mode of phosphogypsum resource were Yunnan province′s present situation of phosphogypsum resource as well as its utilization and problems in exploiting and utilizing

Frontiers Red Yeast Improves the Potential Safe Utilization of Solid

• The biological resource utilization of phosphogypsum PG and titanium gypsum TG by Rho was carried out for the first time • Rho can reduce the harm of PG and TG by producing fluorocalcium phosphate • Rho can adsorb F in PG and TG through extracellular polymer

The Research on Comprehensive Utilization of Phosphogypsum

Introduce several examples of surface active agents used in wet process phosphoric acid WPPA to show its effect on the quality of phosphogypsum Summarized both domestic and foreign methods of comprehensive utilization of phosphogypsum such as being made into calcium sulfate whisker building materials soil improvement agent chemical raw materials and etc

Phosphogypsum Utilisation International Fertiliser Society

Phosphogypsum Utilisation £ inc VAT £ inc VAT Details authors K Weterings published 1982 proceedings 208 ISBN 978 85310 826 9 Proceedings are available either for download as a pdf or a printed copy which is posted to you Please choose which format you would like below Choose the proceedings format Add to basket

Utilization of waste phosphogypsum to prepare non fired bricks by a

Waste phosphogypsum used in this research was obtained from a phosphoric acid factory in Shaotong City of Yunnan Province Southwest of China Comprehensive utilization of phosphogypsum the by product from WPA production Phos Compd Fert 24 4 2024 pp 68 69 [in Chinese with English abstract]

Yuanan phosphogypsum has become a rich ore

This article is transferred from on June 22 the Three Gorges daily at the site of the 250000 ton phosphogypsum full resource utilization production project of Yichang Chengyuan environmental protection new materials Co Ltd in Jiangbei Industrial Park Jiuxian Town Yuan an County the construction personnel were busy debugging the relevant facilities and equipment in combination with the

Adding an appropriate proportion of phosphogypsum ensured rice PubMed

Adding an appropriate proportion of phosphogypsum ensured rice husk and urea composting to promote the compost as substrate utilization Bioresour Technol 2024 Jan 344 Pt B 126301 doi / Epub 2024 Nov 6 Authors Bing Zhao 1 Yuyun Wang 1 Liting Ma 1 Yongjie Li 2 Yaqing Deng 1 Xuejiao Chen 1 Zhi Xu 3

Research hotspots and trends of comprehensive utilization of

From the perspective of bibliometrics this paper systematically and comprehensively describes the research progress trends and hot spots of phosphogypsum resource utilization This article is

Research hotspots and trends of comprehensive utilization of

Click here for a list of all centers Clinical Departments Anesthesiology Emergency Medicine

Environmental Problems of Phosphogypsum Utilization

In recent years solid waste of the production of mineral fertilizers phosphogypsum has been of great scientific and practical interest in construction The results of scientific research and practical experience in many countries have convincingly proved the technical feasibility and feasibility of using phosphogypsum

EPA Approves Use of Phosphogypsum in Road Construction

Phosphogypsum is a byproduct material of phosphate fertilizer production It is regulated for the presence of radium 226 a naturally occurring radioactive substance that produces radon gas a hazardous air pollutant The Clean Air Act requires the disposal of phosphogypsum in stacks except for limited agricultural and research uses

Two‐step thermal decomposition mechanism of phosphogypsum for resource

Yunnan Phosphate Haikou Co Ltd Kunming China Contribution Investigation Resources Search for more papers by this author Xin Song In this work the reduction oxidation two step method was used for investigating the resource utilization of phosphogypsum The influences of different decomposition conditions were investigated

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