RO82895B - Process for thermally treating calcium carbonate and organic compounds- containing phosphatic rocks - Google Patents

Process for thermally treating calcium carbonate and organic compounds- containing phosphatic rocks

Info

Publication number
RO82895B
RO82895B RO102055A RO10205580A RO82895B RO 82895 B RO82895 B RO 82895B RO 102055 A RO102055 A RO 102055A RO 10205580 A RO10205580 A RO 10205580A RO 82895 B RO82895 B RO 82895B
Authority
RO
Romania
Prior art keywords
calcium carbonate
organic compounds
thermally treating
rocks
treating calcium
Prior art date
Application number
RO102055A
Other languages
Romanian (ro)
Other versions
RO82895A (en
Inventor
Lowe
Original Assignee
Albright & Wilson Ltd
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 Albright & Wilson Ltd filed Critical Albright & Wilson Ltd
Publication of RO82895A publication Critical patent/RO82895A/en
Publication of RO82895B publication Critical patent/RO82895B/en

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
    • C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents
    • 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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
    • 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
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • C01B25/2212—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid with hydrochloric acid or hydrogen chloride in aqueous medium
    • 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
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • C01B25/2216—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid with nitric acid or nitrous vapours in aqueous medium
    • 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
    • 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
    • C01B25/223—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 only one form of calcium sulfate being formed
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
    • C05B11/08—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Materials Engineering (AREA)
  • Food Science & Technology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fertilizers (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Inventia se refera la un procedeu pentru tratarea termica a rocilor fosfatice care contin carbonat de calciu si comousi organici, conform caruia, pentru a reduce formarea culorii care apare în timpul descompunerii cu acid a acestora, rocile se încalzesc continuu, timp de 6 min pîna la 2 h, la o temoeratura cuprinsa între 380 si 600 degree C, în prezenta unui gaz cu continut de oxigen, pentru transformarea partiala a compusilor organici în carbon.The invention relates to a process for the thermal treatment of phosphate rock containing calcium carbonate and organic comestibles, according to which, in order to reduce the formation of the color that occurs during their acid decomposition, the rocks are continuously heated for 6 minutes to 2 h, at a temperature of 380 to 600 ° C, in the presence of an oxygen-containing gas, for the partial conversion of organic compounds into carbon.

RO102055A 1980-02-15 1980-08-28 Process for thermally treating calcium carbonate and organic compounds- containing phosphatic rocks RO82895B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8005170 1980-02-15
GB8023356 1980-07-17

Publications (2)

Publication Number Publication Date
RO82895A RO82895A (en) 1984-01-14
RO82895B true RO82895B (en) 1984-01-30

Family

ID=26274504

Family Applications (1)

Application Number Title Priority Date Filing Date
RO102055A RO82895B (en) 1980-02-15 1980-08-28 Process for thermally treating calcium carbonate and organic compounds- containing phosphatic rocks

Country Status (15)

Country Link
KR (1) KR830003369A (en)
AU (1) AU6179580A (en)
BR (1) BR8005463A (en)
DE (1) DE3032157A1 (en)
FR (1) FR2476055A1 (en)
GB (1) GB2069987B (en)
GR (1) GR69872B (en)
IL (1) IL60922A0 (en)
IT (1) IT1141618B (en)
NL (1) NL8004840A (en)
OA (1) OA06614A (en)
PL (1) PL226464A1 (en)
RO (1) RO82895B (en)
SE (1) SE8005860L (en)
YU (1) YU214680A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL72097A (en) * 1984-06-13 1987-07-31 Negev Phosphates Ltd Process for a thermal treatment of israeli phosphate rock
CN104085866A (en) * 2014-04-23 2014-10-08 成都乐氏化工工程有限公司 Production method for improving quality and yield of phosphoric acid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR319303A (en) * 1902-03-05 1902-11-10 Hatmaker Process for obtaining phosphoric acid from mineral phosphates
GB181255A (en) * 1921-07-15 1922-06-15 Andrew Kelly Improvements in the production of phosphoric acid
DE368737C (en) * 1921-07-15 1923-02-08 Borax Cons Ltd Process for the production of phosphoric acid

Also Published As

Publication number Publication date
FR2476055A1 (en) 1981-08-21
GR69872B (en) 1982-07-20
KR830003369A (en) 1983-06-20
OA06614A (en) 1981-08-31
AU6179580A (en) 1981-08-20
GB2069987B (en) 1984-08-08
IT1141618B (en) 1986-10-01
IT8068325A0 (en) 1980-08-27
RO82895A (en) 1984-01-14
NL8004840A (en) 1981-09-16
DE3032157A1 (en) 1981-11-12
SE8005860L (en) 1981-08-16
IL60922A0 (en) 1980-10-26
BR8005463A (en) 1981-09-08
PL226464A1 (en) 1981-08-21
GB2069987A (en) 1981-09-03
YU214680A (en) 1983-02-28

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