JPS54122698A - Manufacture of fibrous or octahedral quick lime - Google Patents

Manufacture of fibrous or octahedral quick lime

Info

Publication number
JPS54122698A
JPS54122698A JP3061178A JP3061178A JPS54122698A JP S54122698 A JPS54122698 A JP S54122698A JP 3061178 A JP3061178 A JP 3061178A JP 3061178 A JP3061178 A JP 3061178A JP S54122698 A JPS54122698 A JP S54122698A
Authority
JP
Japan
Prior art keywords
carbonate
alkali
quick lime
pref
octahedral
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
JP3061178A
Other languages
Japanese (ja)
Other versions
JPS578052B2 (en
Inventor
Takako Honjo
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP3061178A priority Critical patent/JPS54122698A/en
Publication of JPS54122698A publication Critical patent/JPS54122698A/en
Publication of JPS578052B2 publication Critical patent/JPS578052B2/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
    • C01F11/02—Oxides or hydroxides
    • C01F11/04—Oxides or hydroxides by thermal decomposition
    • C01F11/06—Oxides or hydroxides by thermal decomposition of carbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Fibers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To obtain fibrous or octahedral quick lime, in a high yield, useful as heat insulating material, furnace material and reinforcing material for synthetic resin by thermally decomposing calcium carbonate in a melt contg. alkali halide in the presence of alkali carbonate to grow crystals.
CONSTITUTION: Calcium carbonate and alkali carbonate such as sodium carbonate are added to a melt of alkali halide such as sodium chaloride and heated at 700W 1100, pref. 800W900°C for 1/2W4, pref. 1/2W2 hr to thermally decompose the calcium carbonate, thus growing fibrous or octahedral quick lime crystals. The amt. of the alkali carbonate added is 4W30, pref. 6W30% to the amt. of the alkali halide, and that of the calcium carbonate is 0.2W20, pref. 0.5W10 parts to 10 parts of the alkali halide. By this method 7W15 μ thick and 0.5W30 mm long quick lime crystals of a uniform shape can be obtd. in a yield reaching 90%.
COPYRIGHT: (C)1979,JPO&Japio
JP3061178A 1978-03-16 1978-03-16 Manufacture of fibrous or octahedral quick lime Granted JPS54122698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3061178A JPS54122698A (en) 1978-03-16 1978-03-16 Manufacture of fibrous or octahedral quick lime

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3061178A JPS54122698A (en) 1978-03-16 1978-03-16 Manufacture of fibrous or octahedral quick lime

Publications (2)

Publication Number Publication Date
JPS54122698A true JPS54122698A (en) 1979-09-22
JPS578052B2 JPS578052B2 (en) 1982-02-15

Family

ID=12308661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3061178A Granted JPS54122698A (en) 1978-03-16 1978-03-16 Manufacture of fibrous or octahedral quick lime

Country Status (1)

Country Link
JP (1) JPS54122698A (en)

Also Published As

Publication number Publication date
JPS578052B2 (en) 1982-02-15

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