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phosphogypsum slurry

Slurry Preparation Effects on the Cemented
The cemented phosphogypsum (PG) backfill technique provides a new method for massive consumption of PG, and therefore alleviating the environmental pollution of PG. This study considered the effects of slurry preparation on the performance of cemented PG backfill. A L16(44) orthogonal experiment was designed to analyze four factors, namely the solid content,
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Phosphogypsum Backﬁll through an Orthogonal
minerals Article Slurry Preparation Effects on the Cemented Phosphogypsum Backﬁll through an Orthogonal Experiment Xibing Li, Yanan Zhou, Quanqi
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Effect of Stone Slurry And Crumb Rubber on
2018-5-7 · slurry, crumb rubber and Phosphogypsum leads to the investigation of utilization of such wastes as the stabilizing agent. The stone slurry waste is taken from the stone cutting plant and then it is mixed with water to form the stone slurry. Stone slurry is rich with calcium oxide. The crumb rubber is
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Phosphogypsum - an overview | ScienceDirect Topics
Phosphogypsum is a waste by-product from the processing of phosphate rock in plants producing phosphoric acid and phosphate fertilizers, such as superphosphate. The wet chemical phosphoric acid treatment process, or ‘wet process’, in which phosphate ore is digested with sulfuric acid, is widely used to produce phosphoric acid and calcium sulfate, mainly in dihydrate form (CaSO 4
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The geochemical evolution of brines from
Phosphogypsum slurry waste from fertiliser production was disposed in large ponds containing aqueous waste (i.e. brines) and exposed to weathering. These evaporation ponds were found to be dynamic environments far from attaining steady state conditions where a number of trace pollutants are subjected to temporal variations in response to ...
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Feasability Analysis: A Comparison of Phosphogysum
2016-4-4 · phosphogypsum. The slurry is routed to a filtration operation where the suspended phosphogypsum is separated from the acid solution. The acid isolated during filtration is concentrated through evaporation to produce phosphoric acid. The phosphogypsum is reslurried with process wastewater,
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Application of leaching tests on phosphogypsum by ...
2017-6-21 · The stacking procedure involves pumping the phosphogypsum slurry to the stacks that may reach several tens of meters in height and several hundred hectares in area. Once the solids settle out, pore water is channelled to a cooling pond where it is eventually recycled to the acidulation process ( Murray & Lewis 1985 ; Luther et al. 1993 ...
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(PDF) Effect of Surfactants On Phosphogypsum ...
The filtration rates of the phosphogypsum slurry increased 3.8 times compared to the blank group, and the water content of the phosphogypsum cake
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The Use of By-Product Phosphogypsum for Road Bases
calcium sulfate is called phosphogypsum. Typically, the filter cake slurry and wash solution are pipeo to large stockpiles where they are allowed to dis perse. Approximately 4.5 to 5.5 tons of phosphogypsum are generated for every ton of phosphoric acid pro duced (2). Worldwide demand for phosphoric acid
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Phosphogypsum - An Industrial Byproduct with Value
Phosphogypsum is a large-scale waste in the phosphates industry, incurring substantial management costs every year. And while there are some challenges to its beneficial reuse, successful reuse cases around the world, along with the opportunity to mitigate the risks associated with stacking and turn a profit in place of costs has many looking ...
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Slurry Preparation Effects on the Cemented
2019-1-10 · The cemented phosphogypsum (PG) backfill technique provides a new method for massive consumption of PG, and therefore alleviating the environmental pollution of PG. This study considered the effects of slurry preparation on the
Details
Effect of Stone Slurry And Crumb Rubber on
2018-5-7 · slurry, crumb rubber and Phosphogypsum leads to the investigation of utilization of such wastes as the stabilizing agent. The stone slurry waste is taken from the stone cutting plant and then it is mixed with water to form the stone slurry. Stone slurry is rich with calcium oxide. The crumb rubber is
Details
The geochemical evolution of brines from
Phosphogypsum slurry waste from fertiliser production was disposed in large ponds containing aqueous waste (i.e. brines) and exposed to weathering. These evaporation ponds were found to be dynamic environments far from attaining steady state conditions where a number of trace pollutants are subjected to temporal variations in response to ...
Details
Strength and transportability of cemented
phosphogypsum paste backfilling slurry Diyuan Li Central South University, China Bing Liu Central South University, China Jiang He Central South University, China Xibing Li Central South University, China Mingxing Jian Guizhou Kailin Mining Corporation, China Abstract In order to investigate the strength of cemented phosphogypsum (PG) backfill ...
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The Use of By-Product Phosphogypsum for Road Bases
calcium sulfate is called phosphogypsum. Typically, the filter cake slurry and wash solution are pipeo to large stockpiles where they are allowed to dis perse. Approximately 4.5 to 5.5 tons of phosphogypsum are generated for every ton of phosphoric acid pro duced (2). Worldwide demand for phosphoric acid
Details
Proceedings of the Third International Symposium on ...
2014-12-1 · Phosphogypsum is the primary byproduct generated from phosphoric acid production. A slurry of phosphogypsum is pumped to onsite disposal areas termed phosphogypsum stacks. Phosphogypsum settles out of the slurry and acidic process water is recycled. Rainwater and remaining process water combine to form a hydraulic head, forcing the
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Filling Materials Based on Hemihydrate Phosphogypsum
2020-4-7 · phosphogypsum was designed, which is suitable for the technical form of preparing ﬁlling slurry from dry materials. The designed ﬁlling system used the process of pumping for large stowing gradient and gravity ﬂow for small stowing gradient. According to the capacity of the ﬁlling system, the intermittent
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Production of Beneficiated Phosphogypsum for Cement ...
2014-2-4 · The slurry tank/mixer was filled with the requi site quantity of water and churning was started. The Figure (-Pilot plant for beneficiation of phosphogypsum (capacity - I t / shift) unprocessed phosphogypsum was introduced into the mixer in such a manner so that the proportion of phosphogypsum and the water was maintained at 1:3
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Phosphogypsum - An Industrial Byproduct with Value
Phosphogypsum stack in Florida. Image credit: Harvey Henkelmann. The Problem with Stacks. While phosphogypsum stacks have not drawn nearly the attention that some other industrial by-product catastrophes have (think coal ash or red mud),
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Numerical simulation of wet deposited Phosphogypsum ...
2020-8-19 · This paper studied the numerical simulation of wet deposited Phosphogypsum (PG) embankment on an existing dry one by the Plaxis and Midas GTS geotechnical codes. Following the sequences of PG embankment construction, a plane strain model permitted the simulation of the conventional wet deposit process of PG. Mohr-Coulomb constitutive model with
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The geochemical evolution of brines from
Phosphogypsum slurry waste from fertiliser production was disposed in large ponds containing aqueous waste (i.e. brines) and exposed to weathering. These evaporation ponds were found to be dynamic environments far from attaining steady state conditions where a number of trace pollutants are subjected to temporal variations in response to ...
Details
Phosphogypsum Stacks – PEOPLE FOR PROTECTING
The phosphogypsum, separated from the phosphoric acid, is in the form of a solid/water mixture (slurry) which is stored in open-air storage areas known as stacks. The stacks form as the slurry containing the by-product phosphogypsum is pumped onto a disposal site. Over time the solids in the slurry build up and a stack forms.
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Strength and transportability of cemented
Abstract: In order to investigate the strength of cemented phosphogypsum (PG) backfill, a batch of PG backfilling slurry with different concentrations were tested at different curing times. Furthermore, a full-scale pipe test loop system was also established to investigate the pressure drop of the paste slurry with varied slurry concentrations and mix proportions flowing through
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Use of phosphogypsum for fire suppression - Olin
The excelsior bed treated with a 10 percent phosphogypsum slurry ignited, burned slowly and finally extinguished itself with only 66.4 percent of the excelsior bed consumed based on weight loss. The bed treated with the 30 percent slurry ignited but was self-extinguishing with only 49.6 percent of the bed consumed based on weight loss.
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Filling Materials Based on Hemihydrate Phosphogypsum
2020-4-7 · phosphogypsum was designed, which is suitable for the technical form of preparing ﬁlling slurry from dry materials. The designed ﬁlling system used the process of pumping for large stowing gradient and gravity ﬂow for small stowing gradient. According to the capacity of the ﬁlling system, the intermittent
Details
(PDF) Ammonium sulfate preparation from
of phosphogypsum slurry solution, the amount of ammonium. carbonate, solid/liquid phase ratio (S/L), the amount of ammonium. sulfate dissolution of phosphogypsum and contact time as well as.
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TENORM: Fertilizer and Fertilizer Production Wastes | US EPA
2021-11-5 · Phosphogypsum. Phosphogypsum is the primary waste byproduct of the wet-acid process for producing phosphoric acid. During this process sulfuric acid dissolves phosphate rock creating a solid/liquid mixture (slurry) of phosphoric acid and calcium sulfate (phosphogypsum). The desired phosphoric acid component is separated from the mixture by ...
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碎石和磷石膏联合胶结充填最佳配比及应用
2015-12-11 · Adding phosphogypsum to crashed rock aggregate can improve the slurry flowability, decrease the amount of usage of cement, and save the cost. Slump and diffusivity can reflect the slurry pumpability. The recommended backfill ratio slurry transports well and
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硬岩矿山充填开采现状评述与探索
2018-3-14 · Fig.3 (a)Full pipe flow feeding system [33]；(b)Relationship between phosphogypsum filling slurry concentration and pressure drop [34] ②堵管问题难以解决。为将膏体输送至井下，通常采取管道输送的方式。
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SLURRY PUMPING MANUAL - pumpfundamentals
2008-7-5 · WEIR SLURRY PUMPING MANUAL iv–1 Symbols used The terms slurry and mixture in this Manual are used interchangeably to describe a mix of any loose solids, made up in any proportions and combinations of any particle sizes and any conveying liquid.The subscript w refers to densities and specific gravities of liquids – mostly, but not exclusively, water.
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Crawler type Mobile Crushing Plant

Secondary Cone Crusher + Screen

HJ Series High Efficiency Jaw Crusher

HPT Cone Crusher

European Type Coarse Powder Mill

T130X Superfine Grinding Mill

phosphogypsum slurry

Slurry Preparation Effects on the Cemented

Phosphogypsum Backﬁll through an Orthogonal

Effect of Stone Slurry And Crumb Rubber on

Phosphogypsum - an overview | ScienceDirect Topics

The geochemical evolution of brines from

Feasability Analysis: A Comparison of Phosphogysum

Application of leaching tests on phosphogypsum by ...

(PDF) Effect of Surfactants On Phosphogypsum ...

The Use of By-Product Phosphogypsum for Road Bases

Phosphogypsum - An Industrial Byproduct with Value

Slurry Preparation Effects on the Cemented

Effect of Stone Slurry And Crumb Rubber on

The geochemical evolution of brines from

Strength and transportability of cemented

The Use of By-Product Phosphogypsum for Road Bases

Proceedings of the Third International Symposium on ...

Filling Materials Based on Hemihydrate Phosphogypsum

Production of Beneficiated Phosphogypsum for Cement ...

Phosphogypsum - An Industrial Byproduct with Value

Numerical simulation of wet deposited Phosphogypsum ...

The geochemical evolution of brines from

Phosphogypsum Stacks – PEOPLE FOR PROTECTING

Strength and transportability of cemented

Use of phosphogypsum for fire suppression - Olin

Filling Materials Based on Hemihydrate Phosphogypsum

(PDF) Ammonium sulfate preparation from

TENORM: Fertilizer and Fertilizer Production Wastes | US EPA

碎石和磷石膏联合胶结充填最佳配比及应用

硬岩矿山充填开采现状评述与探索

SLURRY PUMPING MANUAL - pumpfundamentals

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