RS63588B1 - Postupci za uklanjanje teških metala iz rastvora fosforne kiseline - Google Patents

Postupci za uklanjanje teških metala iz rastvora fosforne kiseline

Info

Publication number
RS63588B1
RS63588B1 RS20220885A RSP20220885A RS63588B1 RS 63588 B1 RS63588 B1 RS 63588B1 RS 20220885 A RS20220885 A RS 20220885A RS P20220885 A RSP20220885 A RS P20220885A RS 63588 B1 RS63588 B1 RS 63588B1
Authority
RS
Serbia
Prior art keywords
processes
phosphoric acid
heavy metals
acid solutions
removing heavy
Prior art date
Application number
RS20220885A
Other languages
English (en)
Inventor
Lei Zhang
Xueping Qiu
Rajesh Raitani
Original Assignee
Cytec Ind Inc
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 Cytec Ind Inc filed Critical Cytec Ind Inc
Publication of RS63588B1 publication Critical patent/RS63588B1/sr

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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/238—Cationic impurities, e.g. arsenic compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Processing Of Solid Wastes (AREA)
RS20220885A 2017-10-08 2018-10-05 Postupci za uklanjanje teških metala iz rastvora fosforne kiseline RS63588B1 (sr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762569590P 2017-10-08 2017-10-08
PCT/US2018/054578 WO2019071108A2 (en) 2017-10-08 2018-10-05 COMPOSITIONS AND METHODS FOR REMOVING HEAVY METALS FROM PHOSPHORIC ACID SOURCES
EP18865098.0A EP3691992B1 (en) 2017-10-08 2018-10-05 Processes for removing heavy metals from phosphoric acid solutions

Publications (1)

Publication Number Publication Date
RS63588B1 true RS63588B1 (sr) 2022-10-31

Family

ID=65992945

Family Applications (1)

Application Number Title Priority Date Filing Date
RS20220885A RS63588B1 (sr) 2017-10-08 2018-10-05 Postupci za uklanjanje teških metala iz rastvora fosforne kiseline

Country Status (6)

Country Link
US (1) US10865110B2 (sr)
EP (1) EP3691992B1 (sr)
ES (1) ES2927875T3 (sr)
PL (1) PL3691992T3 (sr)
RS (1) RS63588B1 (sr)
WO (1) WO2019071108A2 (sr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11667528B2 (en) * 2019-08-21 2023-06-06 Jesa Technologies Llc Method for removing cadmium in the manufacture of phosphoric acid
EP3964478A1 (en) * 2020-09-08 2022-03-09 Yara International ASA Process for the removal of heavy metals from a phosphoric acid containing composition
EP3964477A1 (en) * 2020-09-08 2022-03-09 Yara International ASA Process for the removal of heavy metals from a phosphoric acid containing composition using an ionic polymeric surfactant
EP3925710A1 (en) * 2020-06-16 2021-12-22 Yara International ASA Method for treating solid hazardous heavy metal-containing compositions
EP4164985B1 (en) * 2020-06-16 2024-06-26 Yara International ASA Process for the removal of heavy metals from a phosphoric acid containing composition using an ionic polymeric surfactant and use of said surfactant in the precipitation of heavy metals in a phosphoric acid containing composition
EP3964476A1 (en) * 2020-09-08 2022-03-09 Yara International ASA Process for the removal of heavy metals from a phosphoric acid containing composition using a flocculating agent
CA3180313A1 (en) 2020-06-16 2021-12-23 Yara International Asa Process for the removal of heavy metals from a phosphoric acid containing composition using a flocculating agent
AU2021294256B2 (en) * 2020-06-16 2024-01-04 Yara International Asa Process for the removal of heavy metals from a phosphoric acid containing composition
US20230365409A1 (en) * 2021-02-25 2023-11-16 Jesa Technologies Llc Method for removing heavy metals in the manufacture of phosphoric acid
WO2024047228A1 (en) * 2022-09-02 2024-03-07 Cytec Industries Inc. Reagents and processes for removing heavy metals from phosphoric acid solutions
WO2024105263A1 (en) 2022-11-17 2024-05-23 Cytec Industries Inc. Compositions and processes for removing heavy metals from phosphoric acid containing streams

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE418845B (sv) 1979-05-10 1981-06-29 Boliden Ab Forfarande for rening av vatprocessfosforsyra
DE3127900A1 (de) 1981-07-15 1983-02-03 Hoechst Ag, 6000 Frankfurt Verfahren zur extraktion von schwermetallionen aus waessrigen loesungen
DE3202658A1 (de) 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur entfernung von schwermetallionen aus nassverfahrensphosphorsaeure
DE3212675A1 (de) 1982-04-05 1983-10-06 Hoechst Ag Verfahren zur abtrennung von schwermetallverbindungen aus zwischenprodukten der fabrikation von phosphorduengemitteln
US4684459A (en) * 1985-11-29 1987-08-04 The Dow Chemical Company Collector compositions for the froth flotation of mineral values
DE3434611A1 (de) 1984-09-21 1986-04-03 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von phosphorsaeure
NO164768C (no) 1988-03-04 1990-11-14 Norsk Hydro As Fremgangsmaate for fjerning av tungmetaller, spesielt kadmium, fra fosforsyreholdige loesninger.
IL85751A (en) 1988-03-16 1991-12-15 Negev Phosphates Ltd Method for the removal of heavy metal ions from phosphoric acid
FR2649391B1 (fr) 1989-07-04 1991-10-31 Pierre Becker Procede de traitement de l'acide phosphorique pour en eliminer certains metaux lourds
ES2020138A6 (es) 1990-04-27 1991-07-16 Ercros Sa Procedimiento de eliminacion de cadmio del acido fosforico.
DE4327401A1 (de) 1993-08-14 1995-02-16 Hoechst Ag Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure
GB9512925D0 (en) 1995-06-24 1995-08-30 Zeneca Ltd Chemical process
US20040179984A1 (en) * 2003-03-13 2004-09-16 Nagaraj D. R. Process for removing metal impurities from wet process phosphoric acid and compositions thereof

Also Published As

Publication number Publication date
US20190106324A1 (en) 2019-04-11
EP3691992A2 (en) 2020-08-12
WO2019071108A3 (en) 2019-05-23
BR112020006895A2 (pt) 2020-10-06
PL3691992T3 (pl) 2022-10-24
US10865110B2 (en) 2020-12-15
ES2927875T3 (es) 2022-11-11
WO2019071108A2 (en) 2019-04-11
EP3691992B1 (en) 2022-07-06
EP3691992A4 (en) 2021-04-21

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