MA25921A1 - Procede de decontamination du gypse - Google Patents

Procede de decontamination du gypse

Info

Publication number
MA25921A1
MA25921A1 MA27137A MA27137A MA25921A1 MA 25921 A1 MA25921 A1 MA 25921A1 MA 27137 A MA27137 A MA 27137A MA 27137 A MA27137 A MA 27137A MA 25921 A1 MA25921 A1 MA 25921A1
Authority
MA
Morocco
Prior art keywords
gypsum
decontamination process
decontamination
gypsum decontamination
Prior art date
Application number
MA27137A
Other languages
English (en)
Inventor
William J Ellis
Clark Bailey
Original Assignee
Pcs Nitrogen Fertilizer L P
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 Pcs Nitrogen Fertilizer L P filed Critical Pcs Nitrogen Fertilizer L P
Publication of MA25921A1 publication Critical patent/MA25921A1/fr

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/468—Purification of calcium sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Detergent Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
MA27137A 2000-10-05 2003-05-02 Procede de decontamination du gypse MA25921A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67990000A 2000-10-05 2000-10-05

Publications (1)

Publication Number Publication Date
MA25921A1 true MA25921A1 (fr) 2003-10-01

Family

ID=24728847

Family Applications (1)

Application Number Title Priority Date Filing Date
MA27137A MA25921A1 (fr) 2000-10-05 2003-05-02 Procede de decontamination du gypse

Country Status (6)

Country Link
US (1) US7118718B2 (fr)
AU (1) AU2002249752B2 (fr)
BR (1) BR0114467B1 (fr)
MA (1) MA25921A1 (fr)
MX (1) MXPA03002981A (fr)
WO (1) WO2002060817A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6595723B2 (en) 2001-08-31 2003-07-22 Peter J. Ianniello Conversion of gypsum stacks to waste containment facilities and related construction and business methods
US7585485B2 (en) 2006-07-03 2009-09-08 Tripoliven, C.A. Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials
US20090050025A1 (en) * 2007-08-21 2009-02-26 Tetra Tech, Inc. Use of Encapsulated Water Soluble Material as a Construction Material
CN101468287B (zh) * 2007-12-28 2011-05-25 上海融新能源环境科技有限公司 石膏冲洗水箱
KR100949671B1 (ko) 2008-07-22 2010-03-29 한국원자력연구원 인석고 중 라듐핵종의 제염처리 방법
US8182698B2 (en) * 2010-06-30 2012-05-22 Arr-Maz Custom Chemicals, Inc. Method for improving gypsum/phosphoric acid slurry filtration using carboxymethyl cellulose
CN113912102B (zh) * 2021-09-29 2024-07-02 福建理工大学 一种钛石膏高效提纯装置
CN115450690B (zh) * 2022-10-25 2025-04-18 中南大学 一种高氟磷石膏除氟处理充填系统及方法
WO2026005812A1 (fr) * 2024-06-26 2026-01-02 Village Enterprises, Inc. Systèmes et procédés de récupération de 226ra à partir de phosphogypse
DE102024127763A1 (de) 2024-09-25 2026-03-26 Thyssenkrupp Ag Verfahren zur Reinigung von Kalziumsulfat-haltigem Material
LU103390B1 (de) 2024-09-25 2026-03-26 Thyssenkrupp AG Verfahren zur Reinigung von Kalziumsulfat-haltigem Material
WO2026068581A1 (fr) 2024-09-25 2026-04-02 Thyssenkrupp Uhde Gmbh Procédé de purification d'un matériau contenant du sulfate de calcium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2218382C3 (de) * 1972-04-15 1975-08-21 Gebrueder Giulini Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von reinem Calciumsulfat beim Phosphorsäurenaßaufschluß
US4113835A (en) * 1972-07-06 1978-09-12 Veba-Chemie Aktiengesellschaft Process for preparing pure synthetic calcium sulfate semihydrate
JPS5241238A (en) 1975-09-25 1977-03-30 Ajinomoto Co Inc Insect attractant composition
US4146568A (en) * 1977-08-01 1979-03-27 Olin Corporation Process for reducing radioactive contamination in waste product gypsum
US4246019A (en) * 1979-02-21 1981-01-20 Sokolov Igor D Method of producing a complex mineral fertilizer
DE3003088A1 (de) * 1980-01-29 1981-07-30 Alkem Gmbh, 6450 Hanau Verfahren zur reinigung einer salpetersauren u/pu-loesung
DE3021839A1 (de) * 1980-06-11 1981-12-24 Chemische Werke Hüls AG, 4370 Marl Verfahren zur verminderung der radioaktivitaet von aus phosphoriten hergestelltem calciumsulfat
NL8004058A (nl) * 1980-07-15 1982-02-16 Stamicarbon Werkwijze voor het bereiden van fosforzuur en calciumsulfaatanhydriet, alsmede fosforzuur en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
NL8006946A (nl) * 1980-12-20 1982-07-16 Stamicarbon Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze.
US4388292A (en) * 1981-12-14 1983-06-14 United States Gypsum Company Process for reducing radioactive contamination in phosphogypsum
US4421731A (en) * 1982-09-29 1983-12-20 United States Gypsum Company Process for purifying phosphogypsum
US5045240A (en) * 1989-05-01 1991-09-03 Westinghouse Electric Corp. Contaminated soil restoration method

Also Published As

Publication number Publication date
US7118718B2 (en) 2006-10-10
US20030163014A1 (en) 2003-08-28
BR0114467B1 (pt) 2010-11-03
AU2002249752B2 (en) 2007-05-17
WO2002060817A1 (fr) 2002-08-08
MXPA03002981A (es) 2004-12-06
BR0114467A (pt) 2003-12-30

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