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JPS5617925A - Manufacture of fine-grain chain calcium carbonate - Google Patents

Manufacture of fine-grain chain calcium carbonate

Info

Publication number
JPS5617925A
JPS5617925A JP9524379A JP9524379A JPS5617925A JP S5617925 A JPS5617925 A JP S5617925A JP 9524379 A JP9524379 A JP 9524379A JP 9524379 A JP9524379 A JP 9524379A JP S5617925 A JPS5617925 A JP S5617925A
Authority
JP
Japan
Prior art keywords
calcium carbonate
fine
calcium hydroxide
manufacture
concn
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.)
Granted
Application number
JP9524379A
Other languages
Japanese (ja)
Other versions
JPS5640118B2 (en
Inventor
Toshio Fujiwara
Makoto Takahashi
Tsukasa Ikegami
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.)
Maruo Calcium Co Ltd
Original Assignee
Maruo Calcium 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 Maruo Calcium Co Ltd filed Critical Maruo Calcium Co Ltd
Priority to JP9524379A priority Critical patent/JPS5617925A/en
Publication of JPS5617925A publication Critical patent/JPS5617925A/en
Publication of JPS5640118B2 publication Critical patent/JPS5640118B2/ja
Granted 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
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
    • 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

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 obtain fine-grain chainlike calcium carbonate very simply and economically by mixing a specified amount of sulfuric acid into an aqueous suspension of calcium hydroxide and carrying out carbonation with CO2 gas at a stroke.
CONSTITUTION: An aqueous suspension of calcium hydroxide is adjusted to ≤15, usually 7W15% concn. and ≤25°C. Basing on 100pts.wt. calcium hydroxide 0.5W8, preferably 1W5pts. wt. sulfuric acid is diluted with water to about 2W5% concn, and mixed into the suspension, and then CO2 gas is blown at ≥2.0l/min.kg Ca(OH)2 as 100% CO2 to successively carry out carbonation until the pH reaches the acidic range. Thus, fine calcium carbonate having 0.02W0.03μm minor axis size is obtd. in the form of a chain having about 10 aspect ratio at a stroke.
COPYRIGHT: (C)1981,JPO&Japio
JP9524379A 1979-07-25 1979-07-25 Manufacture of fine-grain chain calcium carbonate Granted JPS5617925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9524379A JPS5617925A (en) 1979-07-25 1979-07-25 Manufacture of fine-grain chain calcium carbonate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9524379A JPS5617925A (en) 1979-07-25 1979-07-25 Manufacture of fine-grain chain calcium carbonate

Publications (2)

Publication Number Publication Date
JPS5617925A true JPS5617925A (en) 1981-02-20
JPS5640118B2 JPS5640118B2 (en) 1981-09-18

Family

ID=14132303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9524379A Granted JPS5617925A (en) 1979-07-25 1979-07-25 Manufacture of fine-grain chain calcium carbonate

Country Status (1)

Country Link
JP (1) JPS5617925A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6418911A (en) * 1987-07-14 1989-01-23 Maruo Calcium Production of calcium carbonate for paper making
WO1997028087A1 (en) * 1996-01-31 1997-08-07 Papiertechnische Stiftung Process for producing calcium carbonate from calcium-containing residues
CN110980787A (en) * 2019-12-25 2020-04-10 广西华纳新材料科技有限公司 Preparation method of calcium carbonate-calcium sulfate nano composite chain material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161915U (en) * 1982-04-20 1983-10-28 オ−クラ輸送機株式会社 Control device for transported objects

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6418911A (en) * 1987-07-14 1989-01-23 Maruo Calcium Production of calcium carbonate for paper making
WO1997028087A1 (en) * 1996-01-31 1997-08-07 Papiertechnische Stiftung Process for producing calcium carbonate from calcium-containing residues
CN110980787A (en) * 2019-12-25 2020-04-10 广西华纳新材料科技有限公司 Preparation method of calcium carbonate-calcium sulfate nano composite chain material
CN110980787B (en) * 2019-12-25 2022-07-19 广西华纳新材料股份有限公司 Preparation method of calcium carbonate-calcium sulfate nano composite chain material

Also Published As

Publication number Publication date
JPS5640118B2 (en) 1981-09-18

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