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MA67296A1 - PHOSPHOGYPSE PURIFICATION AND BLEACHING PROCESS - Google Patents

PHOSPHOGYPSE PURIFICATION AND BLEACHING PROCESS

Info

Publication number
MA67296A1
MA67296A1 MA67296A MA67296A MA67296A1 MA 67296 A1 MA67296 A1 MA 67296A1 MA 67296 A MA67296 A MA 67296A MA 67296 A MA67296 A MA 67296A MA 67296 A1 MA67296 A1 MA 67296A1
Authority
MA
Morocco
Prior art keywords
phosphogypsum
flotation
paste
purification
liquor
Prior art date
Application number
MA67296A
Other languages
French (fr)
Inventor
Hao Wang
Shenghe TANG
Changdong LI
Cong Xiao
Rui LU
Zhifu Wang
Original Assignee
Guangdong Brunp Recycling Technology Co., Ltd.
Hunan Brunp Recycling Technology Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Brunp Recycling Technology Co., Ltd., Hunan Brunp Recycling Technology Co., Ltd. filed Critical Guangdong Brunp Recycling Technology Co., Ltd.
Publication of MA67296A1 publication Critical patent/MA67296A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/007—Modifying reagents for adjusting pH or conductivity

Abstract

La présente application se rapporte au domaine technique de l'utilisation complète de déchets solides. L'application concerne un procédé de purification et de blanchiment de phosphogypse. Le procédé de purification et de blanchiment de phosphogypse comprend les étapes suivantes consistant à : (1) ajouter de l'eau dans du phosphogypse pour préparer de la pâte, et décolorer la pâte pour obtenir une pâte décolorée ; (2) ajouter un agent collecteur dans la pâte décolorée, ajouter un régulateur de pH pour ajuster le pH à 2,0-2,5, et effectuer une première flottation directe pour obtenir une première liqueur de flottation ; (3) ajouter le régulateur de pH dans la première liqueur de flottation pour ajuster le pH à 2,0-2,5, et réaliser une deuxième flottation directe pour obtenir une deuxième liqueur de flottation ; et (4) ajouter le régulateur de pH dans la deuxième liqueur de flottation pour ajuster le pH à 2,0-2,5, réaliser une troisième flottation directe, concentrer, filtrer et sécher pour obtenir du phosphogypse raffiné. Le phosphogypse ayant une pureté élevée et une blancheur élevée peut être préparé, ce qui permet de réduire efficacement le stockage de phosphogypse et d'atténuer la pression environnementale.This application relates to the technical field of complete solid waste utilization. The application concerns a process for the purification and bleaching of phosphogypsum. The phosphogypsum purification and bleaching process comprises the following steps: (1) adding water to phosphogypsum to prepare a paste, and bleaching the paste to obtain a bleached paste; (2) adding a collecting agent to the bleached paste, adding a pH regulator to adjust the pH to 2.0–2.5, and performing a first direct flotation to obtain a first flotation liquor; (3) adding the pH regulator to the first flotation liquor to adjust the pH to 2.0–2.5, and performing a second direct flotation to obtain a second flotation liquor; and (4) adding the pH regulator to the second flotation liquor to adjust the pH to 2.0–2.5, performing a third direct flotation, concentrating, filtering, and drying to obtain refined phosphogypsum. Phosphogypsum with high purity and high whiteness can be prepared, which effectively reduces phosphogypsum storage and alleviates environmental pressure.

MA67296A 2022-08-26 2023-02-22 PHOSPHOGYPSE PURIFICATION AND BLEACHING PROCESS MA67296A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211037009.0A CN115400881B (en) 2022-08-26 2022-08-26 A method for purifying and whitening phosphogypsum
PCT/CN2023/077582 WO2024040893A1 (en) 2022-08-26 2023-02-22 Method for purifying and whitening phosphogypsum

Publications (1)

Publication Number Publication Date
MA67296A1 true MA67296A1 (en) 2025-10-31

Family

ID=84161821

Family Applications (1)

Application Number Title Priority Date Filing Date
MA67296A MA67296A1 (en) 2022-08-26 2023-02-22 PHOSPHOGYPSE PURIFICATION AND BLEACHING PROCESS

Country Status (3)

Country Link
CN (1) CN115400881B (en)
MA (1) MA67296A1 (en)
WO (1) WO2024040893A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115400881B (en) * 2022-08-26 2025-03-07 广东邦普循环科技有限公司 A method for purifying and whitening phosphogypsum
CN116328932B (en) * 2023-02-15 2024-09-10 三峡大学 Phosphogypsum full-flow circulation purification method
WO2024037127A1 (en) * 2023-06-05 2024-02-22 广东邦普循环科技有限公司 Method for decolorizing and whitening phosphogypsum
CN116789158A (en) * 2023-07-05 2023-09-22 武汉工程大学 Method for preparing high-purity gypsum from phosphogypsum
CN119390399B (en) * 2024-12-31 2025-04-22 四川省生态环境科学研究院 Pit repairing material and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368116A (en) * 1981-03-09 1983-01-11 Vojislav Petrovich Polyhydroxy fatty acids collector-frothers
CN102698873A (en) * 2011-11-28 2012-10-03 云南磷化集团有限公司 Beneficiation method for desorbing silicate impurities in collophanite through direct flotation
CN111302377A (en) * 2020-03-12 2020-06-19 中国科学院过程工程研究所 Method for removing impurities and whitening ardealite

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2014882C (en) * 1990-04-19 1996-02-20 Richard R. Klimpel Depression of the flotation of silica or siliceous gangue in mineral flotation
CN103212484B (en) * 2013-04-18 2015-05-20 武汉工程大学 Phosphorite reverse flotation process
CN103949318B (en) * 2014-04-25 2016-06-22 中蓝连海设计研究院 The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite
CN104646186A (en) * 2015-01-30 2015-05-27 武汉理工大学 Triester-based quaternary ammonium salt positive ion collecting agent and preparation method and application thereof
CN106238215B (en) * 2016-08-30 2018-11-23 中蓝连海设计研究院有限公司 A kind of collophane quaternary ammonium salt cationic collecting agent and its synthetic method and application
WO2018222524A1 (en) * 2017-05-30 2018-12-06 Ecolab Usa Inc. Improved compositions and methods for reverse froth flotation of phosphate ores
FR3070162B1 (en) * 2017-08-16 2019-08-16 Arkema France POLYESTERAMINES AND POLYESTERQUATS
CN108816521B (en) * 2018-05-22 2019-10-08 中南大学 Application of Trihydroxybenzene and Its Derivatives as Bismuth Inhibitors in Flotation Process
CN109290061A (en) * 2018-11-29 2019-02-01 武汉工程大学 A kind of trihydroxy fatty acid soap collector and preparation method and application thereof
CN110142145A (en) * 2019-06-04 2019-08-20 瓮福（集团）有限责任公司 The technique of sesquichloride and magnesium addition in a kind of flotation removing silicon calcium collophanite
CN111672636A (en) * 2020-06-23 2020-09-18 山东大明精细化工有限公司 Spodumene ore flotation collector and preparation method and application method thereof
CN112237995B (en) * 2020-09-24 2021-11-23 昆明理工大学 Composite collecting agent for reducing flotation foam stability and preparation method and application thereof
CN112871457A (en) * 2021-01-11 2021-06-01 西南科技大学 Method for purifying and decontaminating phosphogypsum
CN114308398A (en) * 2021-12-24 2022-04-12 武汉工程大学 A kind of phosphogypsum flotation washing, decolorization and purification method
CN115400881B (en) * 2022-08-26 2025-03-07 广东邦普循环科技有限公司 A method for purifying and whitening phosphogypsum

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368116A (en) * 1981-03-09 1983-01-11 Vojislav Petrovich Polyhydroxy fatty acids collector-frothers
CN102698873A (en) * 2011-11-28 2012-10-03 云南磷化集团有限公司 Beneficiation method for desorbing silicate impurities in collophanite through direct flotation
CN111302377A (en) * 2020-03-12 2020-06-19 中国科学院过程工程研究所 Method for removing impurities and whitening ardealite

Also Published As

Publication number Publication date
CN115400881B (en) 2025-03-07
CN115400881A (en) 2022-11-29
WO2024040893A1 (en) 2024-02-29

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