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JPS6428214A - Synthesis of active magnesium hydroxide - Google Patents

Synthesis of active magnesium hydroxide

Info

Publication number
JPS6428214A
JPS6428214A JP62184584A JP18458487A JPS6428214A JP S6428214 A JPS6428214 A JP S6428214A JP 62184584 A JP62184584 A JP 62184584A JP 18458487 A JP18458487 A JP 18458487A JP S6428214 A JPS6428214 A JP S6428214A
Authority
JP
Japan
Prior art keywords
magnesium hydroxide
liquid
calcined magnesia
reaction
magnesia
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
JP62184584A
Other languages
Japanese (ja)
Other versions
JPH0360774B2 (en
Inventor
Hironobu Shinoda
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.)
Nissan Engineering Ltd
Original Assignee
Nissan Engineering 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 Nissan Engineering Ltd filed Critical Nissan Engineering Ltd
Priority to JP62184584A priority Critical patent/JPS6428214A/en
Priority to KR1019870015179A priority patent/KR930003750B1/en
Publication of JPS6428214A publication Critical patent/JPS6428214A/en
Publication of JPH0360774B2 publication Critical patent/JPH0360774B2/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
    • C01F5/00—Compounds of magnesium
    • C01F5/14—Magnesium hydroxide
    • C01F5/16—Magnesium hydroxide by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/14—Magnesium hydroxide

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 highly active magnesium hydroxide of hydrogel form by slaking reaction with water of pulverized lightly calcined magnesia with the temperature, liquid pH and reaction time specified, respectively. CONSTITUTION:The objective magnesium hydroxide can be obtained by slaking reaction between water and pulverized lightly calcined magnesia at >=85 deg.C for 20min-5hr under a pH of <=11, while stirring. The periclase type crystal structure of lightly calcined magnesia (densely packed structure with the magnesium atom. surrounded by four oxygen atoms.) is cleaved in such a process that the OH<-> ion concentration in the liquid is increased by the addition of e.g. NaOH to convert three of the four oxygen atoms. into OH<-> ions, while the other one oxygen atom. into an activated one of free radical type. With this type of oxygen atom., the above magnesium hydroxide becomes extremely highly reactive, having reaction rate constant four to five times greater than that for the magnesia in seawater. In particular, this may be true when the value of the liquid pH is relatively high.
JP62184584A 1987-07-23 1987-07-23 Synthesis of active magnesium hydroxide Granted JPS6428214A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62184584A JPS6428214A (en) 1987-07-23 1987-07-23 Synthesis of active magnesium hydroxide
KR1019870015179A KR930003750B1 (en) 1987-07-23 1987-12-29 Process for manufacturing magnesium hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184584A JPS6428214A (en) 1987-07-23 1987-07-23 Synthesis of active magnesium hydroxide

Publications (2)

Publication Number Publication Date
JPS6428214A true JPS6428214A (en) 1989-01-30
JPH0360774B2 JPH0360774B2 (en) 1991-09-17

Family

ID=16155766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184584A Granted JPS6428214A (en) 1987-07-23 1987-07-23 Synthesis of active magnesium hydroxide

Country Status (2)

Country Link
JP (1) JPS6428214A (en)
KR (1) KR930003750B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01294520A (en) * 1988-01-13 1989-11-28 Sankurei:Kk Method for slaking naturally occurring light burned magnesia
JPH0363741U (en) * 1989-10-26 1991-06-21
JPH03151543A (en) * 1989-11-08 1991-06-27 Mazda Motor Corp Idle revolution controller of engine
EP0599085A1 (en) * 1992-10-29 1994-06-01 Daicel Abosisangyo Co., Ltd. Method for the production of active magnesium hydroxide
CN103115837A (en) * 2013-01-05 2013-05-22 江苏博特新材料有限公司 Method for testing content of magnesium oxide in magnesium oxide expanding agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014339743B2 (en) 2013-10-24 2018-01-04 Calix Ltd Process and apparatus for manufacture of hydroxide slurry

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01294520A (en) * 1988-01-13 1989-11-28 Sankurei:Kk Method for slaking naturally occurring light burned magnesia
JPH0363741U (en) * 1989-10-26 1991-06-21
JPH03151543A (en) * 1989-11-08 1991-06-27 Mazda Motor Corp Idle revolution controller of engine
EP0599085A1 (en) * 1992-10-29 1994-06-01 Daicel Abosisangyo Co., Ltd. Method for the production of active magnesium hydroxide
CN103115837A (en) * 2013-01-05 2013-05-22 江苏博特新材料有限公司 Method for testing content of magnesium oxide in magnesium oxide expanding agent

Also Published As

Publication number Publication date
JPH0360774B2 (en) 1991-09-17
KR930003750B1 (en) 1993-05-10
KR890001876A (en) 1989-04-06

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