NL7305679A - - Google Patents

Info

Publication number
NL7305679A
NL7305679A NL7305679A NL7305679A NL7305679A NL 7305679 A NL7305679 A NL 7305679A NL 7305679 A NL7305679 A NL 7305679A NL 7305679 A NL7305679 A NL 7305679A NL 7305679 A NL7305679 A NL 7305679A
Authority
NL
Netherlands
Application number
NL7305679A
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 filed Critical
Publication of NL7305679A publication Critical patent/NL7305679A/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • 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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2230/00—Specific aspects relating to the whole B07B subclass
    • B07B2230/01—Wet separation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
NL7305679A 1972-04-26 1973-04-24 NL7305679A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1948972A GB1394734A (en) 1972-04-26 1972-04-26 Process for the purification of waste product calcium sulphate

Publications (1)

Publication Number Publication Date
NL7305679A true NL7305679A (en:Method) 1973-10-30

Family

ID=10130219

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7305679A NL7305679A (en:Method) 1972-04-26 1973-04-24

Country Status (5)

Country Link
BE (1) BE798628A (en:Method)
DE (1) DE2320645A1 (en:Method)
FR (1) FR2182002B1 (en:Method)
GB (1) GB1394734A (en:Method)
NL (1) NL7305679A (en:Method)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146568A (en) 1977-08-01 1979-03-27 Olin Corporation Process for reducing radioactive contamination in waste product gypsum
DE3021839A1 (de) * 1980-06-11 1981-12-24 Chemische Werke Hüls AG, 4370 Marl Verfahren zur verminderung der radioaktivitaet von aus phosphoriten hergestelltem calciumsulfat
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
US4424196A (en) * 1982-06-29 1984-01-03 United States Gypsum Company Phosphohemihydrate process for purification of gypsum
US4421731A (en) * 1982-09-29 1983-12-20 United States Gypsum Company Process for purifying phosphogypsum
RU2031842C1 (ru) * 1991-07-01 1995-03-27 Юрий Георгиевич Горный Способ извлечения редкоземельных элементов из фосфатной руды

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE563616A (en:Method) * 1956-12-31
DE1235211B (de) * 1965-07-06 1967-02-23 Giulini Gmbh Geb Verfahren zur Herstellung von Baugips aus bei der Herstellung von Phosphorsaeure anfallendem Calciumsulfat-Dihydrat
GB1202893A (en) * 1967-02-09 1970-08-19 Fisons Ltd Calcium sulphate hemihydrate

Also Published As

Publication number Publication date
BE798628A (fr) 1973-10-24
DE2320645A1 (de) 1973-11-08
FR2182002A1 (en:Method) 1973-12-07
GB1394734A (en) 1975-05-21
FR2182002B1 (en:Method) 1977-07-29

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed