JPS5445698A - Method of producing hydrate of alumina - Google Patents

Method of producing hydrate of alumina

Info

Publication number
JPS5445698A
JPS5445698A JP11124077A JP11124077A JPS5445698A JP S5445698 A JPS5445698 A JP S5445698A JP 11124077 A JP11124077 A JP 11124077A JP 11124077 A JP11124077 A JP 11124077A JP S5445698 A JPS5445698 A JP S5445698A
Authority
JP
Japan
Prior art keywords
reactor
steam
hydrate
alumina
hydrolysis
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
JP11124077A
Other languages
Japanese (ja)
Other versions
JPS5939365B2 (en
Inventor
Reiji Hirai
Kimiteru Tagawa
Kiyoo Miyazaki
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP11124077A priority Critical patent/JPS5939365B2/en
Publication of JPS5445698A publication Critical patent/JPS5445698A/en
Publication of JPS5939365B2 publication Critical patent/JPS5939365B2/en
Expired 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • C01F7/36—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts from organic aluminium salts

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 provide a hydrate of alumina, excellent in dispersibility, with a minute grain size of 50W500% through a hydrolysis of the vapor of an alkylaluminum compound by steam.
CONSTITUTION: An alkylaluminum compound (e.g. Al(CH3)3) is fed into a raw material tank 1 and heated to 50W200°C. Then, an inert gas such as N2 is admitted into the tank 1 through a conduit 3 and gases thus mixed are allowed to pass through a heater 4. The gases are introducted into a reactor 5. On the other hand, pure water in a tank 2 is heated to produce steam, which is allowed to pass through a heater 6. Then, the steam thus heated is introduced into the reactor 5. In the reactor 5, the vapor of the alkylaluminum compound is brought into hydrolysis with the steam to form a hydrate of alumina. In this process, desirable temperature for the hydrolysis is 150W250°C. After the reaction, the inside of the reactor 5 is sucked in by a blower 8 to regulate the pressure in the system while delivering the resulting powdered hydrate with the gases to a collector 7.
COPYRIGHT: (C)1979,JPO&Japio
JP11124077A 1977-09-17 1977-09-17 Method for producing alumina hydrate Expired JPS5939365B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11124077A JPS5939365B2 (en) 1977-09-17 1977-09-17 Method for producing alumina hydrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11124077A JPS5939365B2 (en) 1977-09-17 1977-09-17 Method for producing alumina hydrate

Publications (2)

Publication Number Publication Date
JPS5445698A true JPS5445698A (en) 1979-04-11
JPS5939365B2 JPS5939365B2 (en) 1984-09-22

Family

ID=14556121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11124077A Expired JPS5939365B2 (en) 1977-09-17 1977-09-17 Method for producing alumina hydrate

Country Status (1)

Country Link
JP (1) JPS5939365B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680109B1 (en) 1999-09-10 2004-01-20 Degussa Ag Pyrogenically produced aluminum oxide
JP2021146223A (en) * 2020-03-16 2021-09-27 大陽日酸株式会社 Treatment method of trimethylaluminum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680109B1 (en) 1999-09-10 2004-01-20 Degussa Ag Pyrogenically produced aluminum oxide
JP2021146223A (en) * 2020-03-16 2021-09-27 大陽日酸株式会社 Treatment method of trimethylaluminum

Also Published As

Publication number Publication date
JPS5939365B2 (en) 1984-09-22

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