IL68469A0 - Defluorination of phosphates - Google Patents

Defluorination of phosphates

Info

Publication number
IL68469A0
IL68469A0 IL68469A IL6846983A IL68469A0 IL 68469 A0 IL68469 A0 IL 68469A0 IL 68469 A IL68469 A IL 68469A IL 6846983 A IL6846983 A IL 6846983A IL 68469 A0 IL68469 A0 IL 68469A0
Authority
IL
Israel
Prior art keywords
defluorination
phosphates
Prior art date
Application number
IL68469A
Other languages
English (en)
Original Assignee
Henderson Albert E
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 Henderson Albert E filed Critical Henderson Albert E
Publication of IL68469A0 publication Critical patent/IL68469A0/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/328—Defluorination during or after the preparation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/26—Compounds containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S71/00—Chemistry: fertilizers
    • Y10S71/03—Defluorination

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
IL68469A 1982-04-23 1983-04-22 Defluorination of phosphates IL68469A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/371,333 US4405575A (en) 1982-04-23 1982-04-23 Method of defluorinating phosphates

Publications (1)

Publication Number Publication Date
IL68469A0 true IL68469A0 (en) 1983-07-31

Family

ID=23463530

Family Applications (1)

Application Number Title Priority Date Filing Date
IL68469A IL68469A0 (en) 1982-04-23 1983-04-22 Defluorination of phosphates

Country Status (6)

Country Link
US (1) US4405575A (xx)
AU (1) AU568589B2 (xx)
CA (1) CA1182977A (xx)
ES (1) ES8406373A1 (xx)
IL (1) IL68469A0 (xx)
MA (1) MA19776A1 (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2678927B1 (fr) * 1991-07-11 1993-11-19 Maroc Chimie Procede et installation de production de triple superphosphate (tsp) granule.
DE102019211955A1 (de) * 2019-08-08 2021-02-11 Glatt Ingenieurtechnik Gesellschaft mit beschränkter Haftung Vorrichtung zur Herstellung von Düngemittelgranulat

Family Cites Families (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2360197A (en) * 1944-10-10 Processes of removing fluorine from
US1329273A (en) * 1920-01-27 William h
USRE19045E (en) 1934-01-16 Method of treating phosphate rock
US1538089A (en) * 1922-03-23 1925-05-19 Fed Phosphorous Company Process for the purification of phosphoric acid
US1459124A (en) * 1922-05-20 1923-06-19 Webster Hyleman Alison Continuous process of making superphosphate
US1747588A (en) * 1927-05-17 1930-02-18 Gen Chemical Corp Process of digesting phosphate rock
NL37793C (xx) * 1928-07-07
US1851179A (en) * 1930-02-25 1932-03-29 Chemical Construction Corp Manufacture of phosphoric acid
GB378670A (en) * 1931-09-01 1932-08-18 Harold Wade Improvements in or relating to decomposing raw phosphates
US1972196A (en) * 1933-01-14 1934-09-04 Eldon L Larison Phosphatic material
US2015384A (en) * 1933-06-29 1935-09-24 Kemiska Patenter Ab Process for preparing superphosphate
US2072980A (en) * 1934-06-04 1937-03-09 Tennessee Valley Authority Manufacture of granular calcium phosphates
US2173826A (en) * 1938-02-15 1939-09-26 Harry A Curtis Making calcium metaphosphate fertilizer
US2414701A (en) * 1938-06-15 1947-01-21 Davison Chemical Corp Method for making granular superphosphate
US2414700A (en) * 1938-06-15 1947-01-21 Davison Chemical Corp Method for making granular superphosphate
US2287759A (en) * 1940-03-15 1942-06-23 Henry A Wallace Process for the granulation of fertilizers
US2448126A (en) * 1944-05-17 1948-08-31 Davison Chemical Corp Granulated superphosphate manufacture
US2442969A (en) * 1946-05-16 1948-06-08 Int Minerals & Chem Corp Manufacture of defluorinated tricalcium phosphate
US2504544A (en) * 1947-01-28 1950-04-18 Davison Chemical Corp Process of manufacturing phosphoric acid
US2504546A (en) * 1947-01-28 1950-04-18 Davison Chemical Corp Superphosphate manufacture
US2598658A (en) * 1948-01-15 1952-05-27 John T Procter Granulation of phosphatic fertilizers
US2643948A (en) * 1949-03-28 1953-06-30 Soc Etu Chimiques Ind Et Agri Method of producing a fertilizer from phosphate rock
US2673795A (en) * 1950-09-12 1954-03-30 Ici Ltd Phosphate fertilizers
US2759795A (en) * 1950-09-26 1956-08-21 Int Minerals & Chem Corp Defluorination of phosphatic materials
US2799557A (en) * 1952-10-11 1957-07-16 Chemical Construction Corp Production of feed grade dicalcium phosphate
US2807521A (en) * 1953-11-09 1957-09-24 Chemical Construction Corp Phosphoric acid manufacture
US2898207A (en) * 1954-03-02 1959-08-04 Minerals & Chemicals Corp Of A Acidulation of phosphate
US2889200A (en) * 1954-04-21 1959-06-02 Int Minerals & Chem Corp Method of preparing defluorinated material
US2885263A (en) * 1955-06-10 1959-05-05 Chemical Construction Corp Anhydrite process for phosphoric acid manufacture
US2895799A (en) * 1955-09-19 1959-07-21 Int Minerals & Chem Corp Process for treating fluorine-containing phosphatic materials
US2890936A (en) * 1956-02-01 1959-06-16 Curt S Benefield Method for producing phosphoric acid
US2933372A (en) * 1956-11-02 1960-04-19 Int Minerals & Chem Corp Method of defluorinating phosphatic material
US2962357A (en) * 1957-02-18 1960-11-29 Int Minerals & Chem Corp Defluorination of phosphoric acid
US3034883A (en) * 1957-09-30 1962-05-15 Tennessee Valley Authority Production of granular superphosphate fertilizer
US3034863A (en) * 1959-03-30 1962-05-15 Shawinigan Chem Ltd Process for preparation of carbon disulphide
US3074780A (en) * 1960-07-05 1963-01-22 Int Minerals & Chem Corp Acidic phosphatic solutions
US3107145A (en) * 1960-08-17 1963-10-15 Hooker Chemical Corp Process for defluorinating phosphatic materials
US3151937A (en) * 1960-10-25 1964-10-06 Int Minerals & Chem Corp Manufacture of defluorinated phosphates
US3142534A (en) * 1960-10-25 1964-07-28 Int Minerals & Chem Corp Manufacture of defluorinated phosphates
US3102000A (en) * 1961-01-13 1963-08-27 American Cyanamid Co Production of animal feed supplement of low fluorine content
US3151938A (en) * 1961-04-25 1964-10-06 Int Minerals & Chem Corp Phosphatic materials and methods for the production thereof
US3193351A (en) * 1961-07-05 1965-07-06 Nat Distillers Chem Corp Removal of fluorine from wet process prosphoric acid
US3212874A (en) * 1963-01-10 1965-10-19 Int Minerals & Chem Corp Process for the production of phosphate fertilizer
GB1052156A (xx) * 1964-05-04
US3394987A (en) * 1964-08-04 1968-07-30 Armour & Co Reacting calcium carbonated and wet process phosphoric acid
US3425837A (en) * 1964-09-02 1969-02-04 Continental Oil Co Preparation of animal feed phosphate
US3429663A (en) * 1965-01-06 1969-02-25 Int Minerals & Chem Corp Defluorination of phosphoric acid
US3389959A (en) * 1965-04-30 1968-06-25 Armour Agricult Chem Manufacture of triple superphosphate
US3397123A (en) * 1965-06-03 1968-08-13 Hooker Chemical Corp Purifying aqueous acid phosphate solutions containing fluorine impurities
US3544269A (en) * 1967-02-27 1970-12-01 Whiting Corp Method for producing defluorinated phosphoric acid
US3519387A (en) * 1967-12-07 1970-07-07 Care Technical Services Inc Quick cure process for making superphosphates of low fluorine content
US3615195A (en) * 1968-12-11 1971-10-26 Simplot Co J R Fluosilic acid recovery
US3556724A (en) * 1969-05-21 1971-01-19 Baker Perkins Inc Phosphoric acid process
US3672828A (en) * 1970-02-03 1972-06-27 Albert E Henderson Jr Quick cure process for making superphosphates of low fluorine content
AU466381B2 (en) * 1971-12-13 1975-10-30 Adelaide & Wallaroo Fertilizers Ltd Process for the manufacture of fee dgrade calcium phosphates from superphosphate
US3840639A (en) * 1972-07-03 1974-10-08 Pennzoil Co Method for the production of fluoride-free potassium phosphates
US3943232A (en) * 1974-03-04 1976-03-09 Atlantic Richfield Company Process for the defluorination of dilute fluorine containing aqueous acid solutions
DE2505218A1 (de) * 1975-02-05 1976-08-19 Schering Ag Neue orale roentgenkontrastmittel und verfahren zu ihrer herstellung
US4101637A (en) * 1975-10-29 1978-07-18 J. R. Simplot Company Direct granulation process for triple superphosphate
US4029743A (en) * 1975-12-24 1977-06-14 Hauge Douglas O Phosphoric acid manufacture
US4026995A (en) * 1976-02-11 1977-05-31 Atlantic Richfield Company Process for defluorination of commercial phosphoric acid
DE125651C (xx) 1976-06-11
US4154799A (en) * 1978-03-27 1979-05-15 United States Gypsum Company Dicalcium phosphate manufacture
FR2446254A1 (fr) * 1979-01-15 1980-08-08 Ugine Kuhlmann Phosphate de calcium naturel defluore pour alimentation animale

Also Published As

Publication number Publication date
MA19776A1 (fr) 1983-12-31
CA1182977A (en) 1985-02-26
US4405575A (en) 1983-09-20
AU568589B2 (en) 1988-01-07
ES521777A0 (es) 1984-08-01
ES8406373A1 (es) 1984-08-01
AU1392583A (en) 1983-10-27

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Legal Events

Date Code Title Description
RH Patent void