RO87978B1 - Procedeu de fabricare a carbonatului de calciu pur - Google Patents

Procedeu de fabricare a carbonatului de calciu pur

Info

Publication number
RO87978B1
RO87978B1 RO111686A RO11168683A RO87978B1 RO 87978 B1 RO87978 B1 RO 87978B1 RO 111686 A RO111686 A RO 111686A RO 11168683 A RO11168683 A RO 11168683A RO 87978 B1 RO87978 B1 RO 87978B1
Authority
RO
Romania
Prior art keywords
calcium carbonate
pure calcium
aragonite
hydroxide solution
less
Prior art date
Application number
RO111686A
Other languages
English (en)
Other versions
RO87978A2 (ro
Inventor
V. Laurentiu Filipescu
Ion Enculescu
Original Assignee
V. Laurentiu Filipescu
Ion Enculescu
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 V. Laurentiu Filipescu, Ion Enculescu filed Critical V. Laurentiu Filipescu
Priority to RO83111686A priority Critical patent/RO87978A2/ro
Publication of RO87978B1 publication Critical patent/RO87978B1/ro
Publication of RO87978A2 publication Critical patent/RO87978A2/ro

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
    • C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Inventia se refera la un procedeu de fabricare a carbonatului de calciu pur, în forma de calcit sau aragonit, conform caruia, folosindu-se ca materie prima o solutie purificata de hidroxid de calciu si continînd 5,,,15% saruri minerale, fenoli, polialcooli, zaharide sau polizaharide, aceasta este supusa carbonatarii cu bioxid de carbon concentrat la temperatura de 75...95 degree C, obtinîndu-se ca precipitat calcit pur avînd dimensiunea particulelor sub 10 miu, iar în prezenta ionilor de Mg + 2, în concentratie de 1...2% în solutie de hidroxid de calciu, precipitata în aceleasi conditii de carbonatare aragonit pur avînd domensiunea particulelor sub 10 miu.
RO83111686A 1983-07-21 1983-07-21 Procedeu de fabricare a carbonatului de calciu pur RO87978A2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO83111686A RO87978A2 (ro) 1983-07-21 1983-07-21 Procedeu de fabricare a carbonatului de calciu pur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO83111686A RO87978A2 (ro) 1983-07-21 1983-07-21 Procedeu de fabricare a carbonatului de calciu pur

Publications (2)

Publication Number Publication Date
RO87978B1 true RO87978B1 (ro) 1985-10-31
RO87978A2 RO87978A2 (ro) 1985-11-30

Family

ID=20113439

Family Applications (1)

Application Number Title Priority Date Filing Date
RO83111686A RO87978A2 (ro) 1983-07-21 1983-07-21 Procedeu de fabricare a carbonatului de calciu pur

Country Status (1)

Country Link
RO (1) RO87978A2 (ro)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5741471A (en) * 1995-12-05 1998-04-21 Minerals Technologies Inc. Process for the preparation of discrete particles of calcium carbonate
GB9827033D0 (en) * 1998-12-10 1999-02-03 Kemgas Limited Lime treatment

Also Published As

Publication number Publication date
RO87978A2 (ro) 1985-11-30

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