JPS56109820A - Manufacture of magnesium hydroxide - Google Patents

Manufacture of magnesium hydroxide

Info

Publication number
JPS56109820A
JPS56109820A JP1240080A JP1240080A JPS56109820A JP S56109820 A JPS56109820 A JP S56109820A JP 1240080 A JP1240080 A JP 1240080A JP 1240080 A JP1240080 A JP 1240080A JP S56109820 A JPS56109820 A JP S56109820A
Authority
JP
Japan
Prior art keywords
amount
mgo
manufacture
acid
obtd
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
JP1240080A
Other languages
Japanese (ja)
Other versions
JPS6335571B2 (en
Inventor
Yoichi Takamiya
Yasuo Suzuki
Takao Fukuda
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.)
SHIN NIPPON KAGAKU KOGYO CO Ltd
Shin Nihon Kagaku Kogyo KK
Original Assignee
SHIN NIPPON KAGAKU KOGYO CO Ltd
Shin Nihon Kagaku Kogyo KK
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 SHIN NIPPON KAGAKU KOGYO CO Ltd, Shin Nihon Kagaku Kogyo KK filed Critical SHIN NIPPON KAGAKU KOGYO CO Ltd
Priority to JP1240080A priority Critical patent/JPS56109820A/en
Publication of JPS56109820A publication Critical patent/JPS56109820A/en
Publication of JPS6335571B2 publication Critical patent/JPS6335571B2/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

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 manufacture Mg(OH)2 with superior crystal form, crystal size and dispersibility by hydrating inert MgO, in the presence of a predetermined amount of acid or Mg salt, obtd. by calcination at a high temp.
CONSTITUTION: An aqueous slurry is perpared by adding MgO obtd. by calcination at ≥1,400°C and acid or its Mg salt. The amount of the acid added is the sum of an amount corresponding to ≥0.5% of the amount of the starting material MgO by equiv. and an amount corresponding to the amount of CaO contained in the starting material by equiv. The slurry is agitated at ≥about 60°C to cause hydration, and the resulting Mg(OH)2 crystals are purified by washing and dried at need.
COPYRIGHT: (C)1981,JPO&Japio
JP1240080A 1980-02-06 1980-02-06 Manufacture of magnesium hydroxide Granted JPS56109820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1240080A JPS56109820A (en) 1980-02-06 1980-02-06 Manufacture of magnesium hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1240080A JPS56109820A (en) 1980-02-06 1980-02-06 Manufacture of magnesium hydroxide

Publications (2)

Publication Number Publication Date
JPS56109820A true JPS56109820A (en) 1981-08-31
JPS6335571B2 JPS6335571B2 (en) 1988-07-15

Family

ID=11804206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1240080A Granted JPS56109820A (en) 1980-02-06 1980-02-06 Manufacture of magnesium hydroxide

Country Status (1)

Country Link
JP (1) JPS56109820A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62123014A (en) * 1985-08-14 1987-06-04 Asahi Glass Co Ltd Novel magnesium hydroxide and production thereof
JPS63190708A (en) * 1987-02-02 1988-08-08 Kawatetsu Kogyo Kk Production of magnesium hydroxide for neutralizing waste acid
JPH02275715A (en) * 1983-04-12 1990-11-09 Ube Chem Ind Co Ltd High purity magnesium hydroxide and its production
JPH11343187A (en) * 1998-06-01 1999-12-14 Tosoh Corp Granular magnesium hydroxide fertilizer and its production
KR100395610B1 (en) * 2000-09-29 2003-08-21 태성화학(주) Method for preparing magnesium hydroxide slurries
WO2007007843A1 (en) * 2005-07-13 2007-01-18 Hitachi Chemical Co., Ltd. Epoxy resin composition for encapsulation and electronic part device
JP2012207131A (en) * 2011-03-29 2012-10-25 Yoshizawa Lime Industry Flame retardant comprising highly hydrous magnesia slaked lime as active ingredient, method for producing the same and thermoplastic polymer made by blending the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3466754B2 (en) * 1995-03-02 2003-11-17 タテホ化学工業株式会社 Purification method of magnesium oxide

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02275715A (en) * 1983-04-12 1990-11-09 Ube Chem Ind Co Ltd High purity magnesium hydroxide and its production
JPH052611B2 (en) * 1983-04-12 1993-01-12 Ube Chem Ind
JPS62123014A (en) * 1985-08-14 1987-06-04 Asahi Glass Co Ltd Novel magnesium hydroxide and production thereof
JPH0465011B2 (en) * 1985-08-14 1992-10-16 Asahi Glass Co Ltd
JPS63190708A (en) * 1987-02-02 1988-08-08 Kawatetsu Kogyo Kk Production of magnesium hydroxide for neutralizing waste acid
JPH11343187A (en) * 1998-06-01 1999-12-14 Tosoh Corp Granular magnesium hydroxide fertilizer and its production
KR100395610B1 (en) * 2000-09-29 2003-08-21 태성화학(주) Method for preparing magnesium hydroxide slurries
WO2007007843A1 (en) * 2005-07-13 2007-01-18 Hitachi Chemical Co., Ltd. Epoxy resin composition for encapsulation and electronic part device
JP2012207131A (en) * 2011-03-29 2012-10-25 Yoshizawa Lime Industry Flame retardant comprising highly hydrous magnesia slaked lime as active ingredient, method for producing the same and thermoplastic polymer made by blending the same

Also Published As

Publication number Publication date
JPS6335571B2 (en) 1988-07-15

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