FI66162C - Foerfarande foer rening av fosforsyra med avseende pao tungmetaller - Google Patents

Foerfarande foer rening av fosforsyra med avseende pao tungmetaller Download PDF

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Publication number
FI66162C
FI66162C FI801521A FI801521A FI66162C FI 66162 C FI66162 C FI 66162C FI 801521 A FI801521 A FI 801521A FI 801521 A FI801521 A FI 801521A FI 66162 C FI66162 C FI 66162C
Authority
FI
Finland
Prior art keywords
phosphoric acid
heavy metals
alkali
cadmium
sulfuric acid
Prior art date
Application number
FI801521A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI66162B (fi
FI801521A (fi
Inventor
Hans Arne Lennart Berglund
Original Assignee
Boliden Ab
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20338025&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI66162(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Boliden Ab filed Critical Boliden Ab
Publication of FI801521A publication Critical patent/FI801521A/fi
Application granted granted Critical
Publication of FI66162B publication Critical patent/FI66162B/fi
Publication of FI66162C publication Critical patent/FI66162C/fi

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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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/238—Cationic impurities, e.g. arsenic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processing Of Solid Wastes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
FI801521A 1979-05-10 1980-05-09 Foerfarande foer rening av fosforsyra med avseende pao tungmetaller FI66162C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7904135 1979-05-10
SE7904135A SE418845B (sv) 1979-05-10 1979-05-10 Forfarande for rening av vatprocessfosforsyra

Publications (3)

Publication Number Publication Date
FI801521A FI801521A (fi) 1980-11-11
FI66162B FI66162B (fi) 1984-05-31
FI66162C true FI66162C (fi) 1984-09-10

Family

ID=20338025

Family Applications (1)

Application Number Title Priority Date Filing Date
FI801521A FI66162C (fi) 1979-05-10 1980-05-09 Foerfarande foer rening av fosforsyra med avseende pao tungmetaller

Country Status (10)

Country Link
US (1) US4378340A (fr)
EP (1) EP0023195B2 (fr)
JP (1) JPH021086B2 (fr)
AT (1) ATE6050T1 (fr)
DE (1) DE3066353D1 (fr)
DK (1) DK151216C (fr)
FI (1) FI66162C (fr)
NO (1) NO152505C (fr)
SE (1) SE418845B (fr)
WO (1) WO1980002418A1 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134847A1 (de) * 1981-09-03 1983-03-17 Hoechst Ag, 6000 Frankfurt "verfahren zur gewinnung cadmium-freier rohphosphorsaeure"
FR2520342A1 (fr) * 1982-01-25 1983-07-29 Rhone Poulenc Chim Base Procede de purification d'acide phosphorique de voie humide
DE3202658A1 (de) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur entfernung von schwermetallionen aus nassverfahrensphosphorsaeure
EP0087065B1 (fr) * 1982-02-12 1985-09-25 Hoechst Aktiengesellschaft Procédé pour la réduction de métal lourd contenu dans le phosphate brut
DE3218599A1 (de) * 1982-05-18 1983-12-01 Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim Verfahren zum entfernen von cadmium aus sauren, insbesondere p(pfeil abwaerts)2(pfeil abwaerts)0(pfeil abwaerts)5(pfeil abwaerts)-haltigen loesungen
DE3604483A1 (de) * 1986-02-13 1987-08-20 Hoechst Ag Verfahren zum entfernen von schwermetallen aus mineralsaeuren
DE3604920A1 (de) * 1986-02-17 1987-08-20 Hoechst Ag Verfahren zur herstellung von rohphosphorsaeure
DE3622597A1 (de) * 1986-07-04 1988-01-07 Budenheim Rud A Oetker Chemie Verfahren zur faellung und abtrennung von cadmiumsulfid aus den raffinaten der phosphorsaeurereinigung
NL8601846A (nl) * 1986-07-15 1988-02-01 Stamicarbon Werkwijze voor het verwijderen van zware metalen uit zure fosfaathoudende waterige media.
DE3631290A1 (de) * 1986-09-13 1988-03-24 Budenheim Rud A Oetker Chemie Verfahren zur behandlung von nassverfahrensphosphorsaeure
NO164768C (no) * 1988-03-04 1990-11-14 Norsk Hydro As Fremgangsmaate for fjerning av tungmetaller, spesielt kadmium, fra fosforsyreholdige loesninger.
DE4327401A1 (de) * 1993-08-14 1995-02-16 Hoechst Ag Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure
US20040179984A1 (en) * 2003-03-13 2004-09-16 Nagaraj D. R. Process for removing metal impurities from wet process phosphoric acid and compositions thereof
TW200944535A (en) * 2008-03-20 2009-11-01 Sigma Aldrich Co Purification and preparation of phosphorus-containing compounds
KR101690403B1 (ko) * 2012-06-21 2016-12-27 오토텍 (핀랜드) 오와이 인함유 출발 물질로부터 중금속을 분리하는 방법 및 플랜트
DE102014006278B3 (de) * 2014-05-02 2015-02-26 Remondis Aqua Gmbh & Co. Kg Verfahren zur Reinigung von Roh-Phosphorsäure (z.B. MGA-Säure) durch Zugabe von Aschen aus Abfall-Verbrennungsanlagen umfassend die Gewinnung von reiner Phosphorsäure, Kalziumsulfat, wasserlöslichen Kalziumhydrogenphosphaten und Metallsalz-Lösung
FR3039830B1 (fr) * 2015-08-03 2018-09-07 Ocp Sa Procede de fabrication d'un engrais a base de phosphate d'ammonium presentant une teneur reduite en cadmium
US10865110B2 (en) 2017-10-08 2020-12-15 Cytec Industries Inc. Compositions and processes for removing heavy metals from phosphoric acid solutions
US20230219817A1 (en) 2020-06-16 2023-07-13 Yara International Asa Process for the removal of heavy metals from a phosphoric acid containing composition
EP3964478A1 (fr) 2020-09-08 2022-03-09 Yara International ASA Procédé d'élimination de métaux lourds à partir d'une composition contenant de l'acide phosphorique
EP3964477A1 (fr) 2020-09-08 2022-03-09 Yara International ASA Procédé d'élimination de métaux lourds à partir d'une composition contenant de l'acide phosphorique à l'aide d'un agent tensioactif polymère ionique
EP4164814A1 (fr) 2020-06-16 2023-04-19 Yara International ASA Procédé d'élimination de métaux lourds d'une composition contenant de l'acide phosphorique à l'aide d'un agent floculant
EP4164985B1 (fr) 2020-06-16 2024-06-26 Yara International ASA Procédé d'élimination de métaux lourds d'une composition contenant de l'acide phosphorique à l'aide d'un tensioactif polymérique ionique et utilisation dudit tensioactif dans la précipitation de métaux lourds dans une composition contenant de l'acide phosphorique
EP3964476A1 (fr) 2020-09-08 2022-03-09 Yara International ASA Procédé d'élimination de métaux lourds à partir d'une composition contenant de l'acide phosphorique à l'aide d'un agent de floculation
EP4015452A1 (fr) 2020-12-21 2022-06-22 Técnicas Reunidas, S.A. Procédé de production d'acide phosphorique de qualité technique à partir de cendres de boues d'épuration
WO2024047228A1 (fr) 2022-09-02 2024-03-07 Cytec Industries Inc. Réactifs et procédés d'élimination de métaux lourds de solutions d'acide phosphorique
PL442462A1 (pl) * 2022-10-07 2024-04-08 Politechnika Wrocławska Sposób oczyszczania surowców fosforowych przez kalcynację z dodatkiem soli nieorganicznych
WO2024105263A1 (fr) 2022-11-17 2024-05-23 Cytec Industries Inc. Compositions et procédés d'élimination de métaux lourds à partir de flux contenant de l'acide phosphorique

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
SE37857C1 (fr) 1914-11-18
SE190035C1 (fr) 1964-01-01
US935337A (en) * 1908-07-08 1909-09-28 John Herbert Thwaites Wet method of separating metallic compounds.
US1473641A (en) * 1921-08-24 1923-11-13 Pohl Otto Process of dry distilling and carbonizing crude peat
US1783757A (en) * 1927-12-14 1930-12-02 Ig Farbenindustrie Ag Dehydration of moist fuels
US1787192A (en) * 1928-08-11 1930-12-30 Rumford Chemical Works Method of purifying phosphoric acid and the like
US2183924A (en) * 1938-04-13 1939-12-19 Eugene P Schoch Lignite and process of producing the same
DE817590C (de) 1948-10-02 1951-10-18 Paul Hoppe Verfahren zum Herstellen von hochwertigem Brennstoff
US3124419A (en) * 1961-04-20 1964-03-10 Purification of phosphoric acid
US3205589A (en) * 1961-09-27 1965-09-14 West Wood Proc Corp Process of drying wood by oil immersion and vacuum treatment to selected moisture content with oil recovery
US3685964A (en) * 1970-12-09 1972-08-22 Fmc Corp Purification of alkali phosphate solution
SE393676B (sv) 1972-02-22 1977-05-16 B O Heger Forfarande for torkning av tre och andra liknande fiberprodukter
JPS5018388A (fr) 1973-06-21 1975-02-26
JPS5651123B2 (fr) * 1973-11-07 1981-12-03
DE2447390C3 (de) 1974-10-04 1983-11-17 Hoechst Ag, 6230 Frankfurt Verfahren zur Reinigung von Naßphosphorsäure
DE2608029C2 (de) * 1976-02-27 1984-02-23 Hoechst Ag, 6230 Frankfurt Verfahren zur Herstellung einer Alkaliphosphatlösung aus Naßverfahrensphosphorsäuren
JPS5375196A (en) * 1976-12-15 1978-07-04 Central Glass Co Ltd Removing method for heavy metals from phosphoric acid solution

Also Published As

Publication number Publication date
WO1980002418A1 (fr) 1980-11-13
NO152505C (no) 1985-10-09
NO152505B (no) 1985-07-01
DK547780A (da) 1980-12-22
FI66162B (fi) 1984-05-31
ATE6050T1 (de) 1984-02-15
US4378340A (en) 1983-03-29
DK151216C (da) 1988-07-18
EP0023195B1 (fr) 1984-02-01
EP0023195A3 (en) 1981-09-09
JPS56500492A (fr) 1981-04-16
NO810039L (no) 1981-01-07
DE3066353D1 (en) 1984-03-08
DK151216B (da) 1987-11-16
EP0023195A2 (fr) 1981-01-28
FI801521A (fi) 1980-11-11
SE7904135L (sv) 1980-11-11
EP0023195B2 (fr) 1988-09-21
JPH021086B2 (fr) 1990-01-10
SE418845B (sv) 1981-06-29

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Owner name: BOLIDEN AKTIEBOLAG