MA19009A1 - Procede pour produire de l'acide phosphorique et du gypse a partir de phosphorite,permettant de recuperer facilement l'uranium - Google Patents

Procede pour produire de l'acide phosphorique et du gypse a partir de phosphorite,permettant de recuperer facilement l'uranium

Info

Publication number
MA19009A1
MA19009A1 MA19211A MA19211A MA19009A1 MA 19009 A1 MA19009 A1 MA 19009A1 MA 19211 A MA19211 A MA 19211A MA 19211 A MA19211 A MA 19211A MA 19009 A1 MA19009 A1 MA 19009A1
Authority
MA
Morocco
Prior art keywords
phosphorite
gypsum
phosphoric acid
producing phosphoric
recovering uranium
Prior art date
Application number
MA19211A
Other languages
English (en)
Inventor
Goers We
Gerunda Ab
Original Assignee
Alusuisse
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 Alusuisse filed Critical Alusuisse
Publication of MA19009A1 publication Critical patent/MA19009A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
    • C22B60/0278—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries by chemical methods
    • C22B60/0282—Solutions containing P ions, e.g. treatment of solutions resulting from the leaching of phosphate ores or recovery of uranium from wet-process phosphoric acid
    • 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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C01B25/228—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen one form of calcium sulfate being formed and then converted to another form
    • C01B25/229—Hemihydrate-dihydrate process
    • C01B25/2295—Hemihydrate-dihydrate process the conversion being performed in one or more vessels different from those used for reaction after separation of phosphoric acid
MA19211A 1979-12-03 1980-12-03 Procede pour produire de l'acide phosphorique et du gypse a partir de phosphorite,permettant de recuperer facilement l'uranium MA19009A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/099,917 US4311677A (en) 1979-12-03 1979-12-03 Process for producing phosphoric acid

Publications (1)

Publication Number Publication Date
MA19009A1 true MA19009A1 (fr) 1981-07-01

Family

ID=22277239

Family Applications (1)

Application Number Title Priority Date Filing Date
MA19211A MA19009A1 (fr) 1979-12-03 1980-12-03 Procede pour produire de l'acide phosphorique et du gypse a partir de phosphorite,permettant de recuperer facilement l'uranium

Country Status (9)

Country Link
US (1) US4311677A (fr)
EP (1) EP0031793B1 (fr)
CA (1) CA1137274A (fr)
DK (1) DK506080A (fr)
EG (1) EG14547A (fr)
FI (1) FI803699L (fr)
MA (1) MA19009A1 (fr)
NO (1) NO803620L (fr)
YU (1) YU304280A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL59206A (en) * 1980-01-23 1982-12-31 Israel State Recovery of uranium from rock phosphate
DE3021839A1 (de) * 1980-06-11 1981-12-24 Chemische Werke Hüls AG, 4370 Marl Verfahren zur verminderung der radioaktivitaet von aus phosphoriten hergestelltem calciumsulfat
JPS5933526B2 (ja) 1980-07-28 1984-08-16 セントラル硝子株式会社 ウラン含有量の多い湿式リン酸の製造方法
IT1151105B (it) * 1981-02-23 1986-12-17 Central Glass Co Ltd Procedimento per recuperare uranio da acido fosforico con procrsso per via umida
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
FR2535702B1 (fr) * 1982-11-10 1986-09-12 Rhone Poulenc Chim Base Procede de recuperation globale de l'uranium, de l'yttrium, du thorium et des terres rares contenus dans un minerai phosphate au cours de la preparation d'acide phosphorique par voie humide
FR2542302B1 (fr) * 1983-03-08 1985-10-25 Pechiney Ugine Kuhlmann Uran Procede ameliore de recuperation par solvant de l'uranium present dans l'acide phosphorique
CN108275669B (zh) * 2018-01-16 2021-12-03 湖北兴福电子材料有限公司 一种电子级磷酸脱除刺激性气味的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841465A (en) * 1949-09-10 1958-07-01 Porter Robert Rampton Recovery of uranium from solutions thereof
US2789879A (en) * 1950-11-15 1957-04-23 Kaufman David Recovery of uranium from phosphoric acid
GB730908A (en) * 1953-01-13 1955-06-01 Norman Leslie Gray Whitehouse Process for the extraction of uranium from its ores
NL97909C (fr) * 1954-02-01
NL98457C (fr) * 1955-04-29
FR1397587A (fr) * 1964-05-04 1965-04-30 Le Ministre De La Defense Perfectionnements apportés aux procédés pour l'extraction d'uranium
US3653826A (en) * 1967-09-21 1972-04-04 Nissan Chemical Ind Ltd Process for the production of phosphoric acid at a high concentration and a gypsum by-product of improved quality
US3711591A (en) * 1970-07-08 1973-01-16 Atomic Energy Commission Reductive stripping process for the recovery of uranium from wet-process phosphoric acid
UST970007I4 (en) * 1977-03-25 1978-05-02 Tennessee Valley Authority Uranium recovery from wet-process phosphoric acid
US4180545A (en) * 1977-03-25 1979-12-25 Tennessee Valley Authority Uranium recovery from wet-process phosphoric acid

Also Published As

Publication number Publication date
EG14547A (en) 1985-03-31
EP0031793B1 (fr) 1984-05-16
DK506080A (da) 1981-06-04
CA1137274A (fr) 1982-12-14
YU304280A (en) 1983-10-31
FI803699L (fi) 1981-06-04
NO803620L (no) 1981-06-04
US4311677A (en) 1982-01-19
EP0031793A3 (en) 1981-07-22
EP0031793A2 (fr) 1981-07-08

Similar Documents

Publication Publication Date Title
BE882303A (fr) Procede de production de l'acide methacrylique
BE852145A (fr) Procede pour la recuperation d'uranium a partir d'acide phosphorique obtenu par voie humide
BE880571A (fr) Procede de production de l'acide methacrylique et catalyseur approprie
BE878902A (fr) Procede de production d'alkylene-glycols
FR2341552A1 (fr) Procede de preparation d'acide methacrylique
FR2434780B1 (fr) Procede de production d'ammoniac
MA19009A1 (fr) Procede pour produire de l'acide phosphorique et du gypse a partir de phosphorite,permettant de recuperer facilement l'uranium
BE852230A (fr) Procede de preparation d'acide phosphorique a partir de minerais de phosphate
BE879359A (fr) Procede de fabrication de l'acide parahydroxymandelique racemique
FR2320262A1 (fr) Procede de preparation de phosphates a partir d'acide phosphorique
BE883996A (fr) Procede de production d'engrais composes
BE890350A (fr) Procede de production d'acide 0-(2,6-dichloranilino)phenylacetique
MA19030A1 (fr) Procede de production d'un acide dialkylphosphorique
BE884401A (fr) Perfectionnement au procede de recuperation de l'uranium d'un acide phosphorique impur
FR2346333A1 (fr) Procede de preparation d'acide 2-chloronicotinique d'un blanc pur
MA19224A1 (fr) Procede pour la recuperation de l'uranium a partir d'acide phosphorique de procede humide .
MA19042A1 (fr) Procede pour la recuperation d'uranium a partir d'acide phosphorique de procede humide .
MA19044A1 (fr) Procede pour la recuperation de l'uranium a partir de l'acide phosphorique .
FR2340904A1 (fr) Procede d'elimination des ions sulfate de l'acide phosphorique extrait
MA19328A1 (fr) Procede de recuperation de l'uranium (vi) present dans des solutions d'acide phosphorique .
BE858534A (fr) Procede de recuperation d'uranium dans le procede de fabrication d'acide phosphorique, par voie humide
BE880848A (fr) Catalyseur et procede de production d'acide methacrylique
BE882229A (fr) Procede de recuperation d'acide methacrylique
BE861693A (fr) Procede de reduction de l'acide 2,5-dicetogluconique
MA19041A1 (fr) Procede pour la recuperation d'uranium a partir d'acide phosphorique de procede humide .