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JPS57123822A - Preparation of calcite-type calcium carbonate crystal - Google Patents

Preparation of calcite-type calcium carbonate crystal

Info

Publication number
JPS57123822A
JPS57123822A JP885781A JP885781A JPS57123822A JP S57123822 A JPS57123822 A JP S57123822A JP 885781 A JP885781 A JP 885781A JP 885781 A JP885781 A JP 885781A JP S57123822 A JPS57123822 A JP S57123822A
Authority
JP
Japan
Prior art keywords
calcium carbonate
calcite
slurry
carbonate crystal
slaked lime
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP885781A
Other languages
Japanese (ja)
Inventor
Koichi Tanaka
Tetsuo Kumasaka
Masanori Matsukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Okutama Kogyo Co Ltd
Original Assignee
Okutama Kogyo Co 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 Okutama Kogyo Co Ltd filed Critical Okutama Kogyo Co Ltd
Priority to JP885781A priority Critical patent/JPS57123822A/en
Publication of JPS57123822A publication Critical patent/JPS57123822A/en
Pending legal-status Critical Current

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
    • C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
    • 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
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions

Landscapes

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

Abstract

PURPOSE: To prepare calcium carbonate crystal capable of imparting excellent white gloss, by blowing CO2 in an aqueous slurry containing calcite-type cubic calcium carbonate crystals at a specific concentration thereby maintaining the pH of the slurry at a specific level, and adding milk of slaked lime having a specific concentration to the slurry.
CONSTITUTION: CO2 is blown in an aqueous slurry containing calcite-type cubic calcium carbonate crystals having particle size of about 0.03W0.05μ at a concentration of 50W200g/l to maintain the pH of the slurry at 6W12. The rate of blowing of CO2 is about 10W30l/min per 1kg of the calcite-type cubic calcium carbonate crystal. Then, slaked lime milk of a concentration of 50W250g/l is added to the slurry. The amount of the slaked lime is about 0.5W4mol per 1mol of the calcite-type cubic calcium carbonate crystal. The temperature at the initiation of the reaction of slaked lime with CO2 is pref. about 5W70°C.
COPYRIGHT: (C)1982,JPO&Japio
JP885781A 1981-01-23 1981-01-23 Preparation of calcite-type calcium carbonate crystal Pending JPS57123822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP885781A JPS57123822A (en) 1981-01-23 1981-01-23 Preparation of calcite-type calcium carbonate crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP885781A JPS57123822A (en) 1981-01-23 1981-01-23 Preparation of calcite-type calcium carbonate crystal

Publications (1)

Publication Number Publication Date
JPS57123822A true JPS57123822A (en) 1982-08-02

Family

ID=11704386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP885781A Pending JPS57123822A (en) 1981-01-23 1981-01-23 Preparation of calcite-type calcium carbonate crystal

Country Status (1)

Country Link
JP (1) JPS57123822A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217020A (en) * 1985-07-15 1987-01-26 Maruo Calcium Kk Production of calcium carbonate
JPS62202817A (en) * 1986-02-27 1987-09-07 Toyo Denka Kogyo Kk Production of fine particle of calcium carbonate
JP2001501905A (en) * 1996-10-14 2001-02-13 エフピー―ピグメント オサケ ユキチュア Precipitated calcium carbonate and its production method
WO2001049610A1 (en) * 2000-01-06 2001-07-12 Yabashi Industries Co., Ltd. Process for producing spindle-shaped calcium carbonate
JP2002173323A (en) * 2000-09-28 2002-06-21 Okutama Kogyo Co Ltd Method for manufacturing calcium carbonate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889898A (en) * 1972-03-03 1973-11-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889898A (en) * 1972-03-03 1973-11-24

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217020A (en) * 1985-07-15 1987-01-26 Maruo Calcium Kk Production of calcium carbonate
JPH051214B2 (en) * 1985-07-15 1993-01-07 Maruo Calcium
JPS62202817A (en) * 1986-02-27 1987-09-07 Toyo Denka Kogyo Kk Production of fine particle of calcium carbonate
JP2001501905A (en) * 1996-10-14 2001-02-13 エフピー―ピグメント オサケ ユキチュア Precipitated calcium carbonate and its production method
US6602484B1 (en) 1996-10-14 2003-08-05 Fp-Pigments Oy Precipitated calcium carbonate and method for the production thereof
WO2001049610A1 (en) * 2000-01-06 2001-07-12 Yabashi Industries Co., Ltd. Process for producing spindle-shaped calcium carbonate
JP2002173323A (en) * 2000-09-28 2002-06-21 Okutama Kogyo Co Ltd Method for manufacturing calcium carbonate

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