The Use Of Phosphogypsum

  • Efficiency of the use of neutralized

    · Phosphogypsum PG phosphorite processing waste can be used in agriculture as a chemical ameliorant to eliminate soil degradation But it has some disadvantages especially acidity therefore the use of neutralized phosphogypsum NPG is proposed The development of methods for the rational NPG use both separately and in combination with mineral fertilizers to improve soil

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  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part II Phosphogypsum as a Filler for Polyamide 6 and for PVC Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Barbara Kawinska Barbara Kawinska Industrial Chemistry Research

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  • THE USE OF BY PRODUCT PHOSPHOGYPSUM

    Phosphogypsum is a chemical by product of phosphoric acid proceesing plants and consists mainly of calcium sulfate dihydrate Because of trace impurities this material has not been used to replace natural gypsum in the housing industry causing domestic stockpiles to accumulate at rates that could produce an inventory of one billion tons by the year 2000

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  • THE USE OF BY PRODUCT PHOSPHOGYPSUM

    Phosphogypsum from the Mobil Chemical Company s stockpile in Pasadena Texas is used in the study Use of this locally available material would result in significant energy savings by reducing expensive transportation charges usually incorporated in the cost of conventional construction materials that are presently used in the Houston area Factors involving strength development such as

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  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part II Phosphogypsum as a Filler for Polyamide 6 and for PVC Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Barbara Kawinska Barbara Kawinska Industrial Chemistry Research

    Get Price
  • The use of phosphogypsum in Syrian cement

    The results of this study support the safe use of PG in construction materials Abstract Radiation dose assessment due to the presence of phosphogypsum PG in cement was investigated The assessment was performed using appropriate radiation exposure model based on radiation measurements gamma spectroscopy and solid state nuclear track detector CR 39 Radium equivalent and activity

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  • The use of phosphogypsum in Syrian cement

    · Highlights Radiation dose due to the presence of phosphogypsum PG in cement was studied Appropriate radiation exposure model based on radiation measurements was used Radium equivalent and activity index safety criteria were calculated The extra dose to the public due this addition was within the acceptable levels The results of this study support the safe use of PG in construction

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  • The use of phosphogypsum in Syrian cement

    The results of this study support the safe use of PG in construction materials Abstract Radiation dose assessment due to the presence of phosphogypsum PG in cement was investigated The assessment was performed using appropriate radiation exposure model based on radiation measurements gamma spectroscopy and solid state nuclear track detector CR 39 Radium equivalent and activity

    Get Price
  • Efficiency of the use of neutralized

    · Phosphogypsum PG phosphorite processing waste can be used in agriculture as a chemical ameliorant to eliminate soil degradation But it has some disadvantages especially acidity therefore the use of neutralized phosphogypsum NPG is proposed The development of methods for the rational NPG use both separately and in combination with mineral fertilizers to improve soil

    Get Price
  • RADIOLOGICAL IMPLICATIONS OF USING PHOSPHOGYPSUM AS

    USE OF FERTILIZERS AND PHOSPHOGYPSUM IN AGRICULTURE In terms of rounded figures the production of 1 ton of phosphate results in the generation of 4 5 ton of PG PG is produced at a rate of million tons per year The level of impurities metals and radionuclides among others present in PG makes its disposal or reutilization an environmental concern PG has been used as soil conditioner

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  • THE USE OF BY PRODUCT PHOSPHOGYPSUM

    Phosphogypsum from the Mobil Chemical Company s stockpile in Pasadena Texas is used in the study Use of this locally available material would result in significant energy savings by reducing expensive transportation charges usually incorporated in the cost of conventional construction materials that are presently used in the Houston area Factors involving strength development such as

    Get Price
  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part I The Use of Phosphogypsum as a Filler for Polyolefine Compositions Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Zbigniew Wielgosz Zbigniew Wielgosz

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  • Composite Building Materials with the Use of

    Nowadays waste dumps of phosphogypsum take about 1500 hectares of fertile land and amount to 300 mln tonnes Existing methods of processing are too labour and energy consuming what didn t lead to widespread use of phosphogypsum Phosphogypsum waste continue to be stored in waste dumps disperse on the wind and create ecological problem in the regions of storage

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  • RADIATION RISKS FROM SELECTED USES OF BY PRODUCT

    3 Other alternate uses which would be approved by the EPA on a case by case basis provided the proposed use of the phosphogypsum will be as least as protective of public health in the short term and long term as disposal in a stack or mine The EPA concluded in 1992 that certain uses of PG may be

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  • The possibility of the phosphogypsum use in the

    In this paper phosphogypsum PG with the content of 226 Ra of about 500 Bq kg 1 was used as a clay additive in mass ratios of 0−40 % and its influence on the radiological and mineralogical characteristics of the obtained brick samples was monitored After sintering the samples at 1000 ℃ the formation of the mineral phase gehlenite was observed and its share increased with the share

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  • THE USE OF BY PRODUCT PHOSPHOGYPSUM

    Phosphogypsum from the Mobil Chemical Company s stockpile in Pasadena Texas is used in the study Use of this locally available material would result in significant energy savings by reducing expensive transportation charges usually incorporated in the cost of conventional construction materials that are presently used in the Houston area Factors involving strength development such as

    Get Price
  • RADIATION RISKS FROM SELECTED USES OF BY PRODUCT

    3 Other alternate uses which would be approved by the EPA on a case by case basis provided the proposed use of the phosphogypsum will be as least as protective of public health in the short term and long term as disposal in a stack or mine The EPA concluded in 1992 that certain uses of PG may be

    Get Price
  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part I The Use of Phosphogypsum as a Filler for Polyolefine Compositions Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Zbigniew Wielgosz Zbigniew Wielgosz

    Get Price
  • USE OF BY PRODUCT PHOSPHOGYPSUM IN

    USE OF BY PRODUCT PHOSPHOGYPSUM IN ROAD CONSTRUCTION Phosphogypsum is a solid by product material resulting from the production of phosphoric acid a major constituent of many fertilizers It has been estimated that more than 800 million tons of phosphogypsum are stockpiled in the The current production rate exceeds 60 million tons per

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  • Phosphogypsum Uses And Production Process

    · 2 phosphogypsum rendered acidic is very rich in sulfur calcium magnesium and other trace elements in addition of widely used for construction road and other purposes but also for improvement of saline alkali soil conditioner played an important role in alleviate desertification And moreover phosphogypsum can also be prepared as a long acting fertilizer and other fertilizer raw

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  • Production of Beneficiated Phosphogypsum for Cement

    The results favour use of phosphogypsum as an additive to cement clinker in place of natural gypsum Introduction About mt of phosphogypsum is produced as byproduct from the phosphoric acid industries in India annually With installation of more phosphatic fertilizer plants the quantity of the byproduct gypsum may further enhance in near future Only selected grade of the phosphogypsum is

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  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part I The Use of Phosphogypsum as a Filler for Polyolefine Compositions Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Zbigniew Wielgosz Zbigniew Wielgosz

    Get Price
  • The Use of Phosphogypsum as a Filler for

    · The Use of Phosphogypsum as a Filler for Thermoplastics Part II Phosphogypsum as a Filler for Polyamide 6 and for PVC Show all authors Ewa Kowalska Ewa Kowalska Industrial Chemistry Research Institute IRCI 8 Rhdygiera 01 793 Warsaw Poland See all articles by this author Search Google Scholar for this author Barbara Kawinska Barbara Kawinska Industrial Chemistry Research

    Get Price
  • the use of miling equipment phosphogypsum

    the use of miling equipment phosphogypsum Phosphogypsum powder processing Phosphogypsum powder processing Hong Cheng vertical mill HLM vertical milling integrate from drying grinding classification transport as a whole mainly used grinding and processing of cement clinker power plant desulfurization with lime powder slag powder manganese ore gypsum coal barite calcite and

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  • Efficiency of the use of neutralized

    · Phosphogypsum PG phosphorite processing waste can be used in agriculture as a chemical ameliorant to eliminate soil degradation But it has some disadvantages especially acidity therefore the use of neutralized phosphogypsum NPG is proposed The development of methods for the rational NPG use both separately and in combination with mineral fertilizers to improve soil

    Get Price

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