Cookies Policy
X
Cookie Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Effects of preheating on mechanochemical amorphization and enhanced reactivity of aluminum hydroxide

MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

Price:
$30.00+ Tax (if applicable)
Add to Favorites

image of Advanced Powder Technology

Preheating of gibbsite at 250°C brought about a phase transition to boehmite and an increase in the specific surface area as a consequence of partial dehydration. The preheated sample amorphizes completely by milling with a planetary ball mill for 2 h. Faster activation of preheated gibbsite is demonstrated by the integral heat of hydration, ΔHh, with Ca(OH)2 in an aqueous milieu. By using preheated gibbsite after milling for 1 h, ΔHh is almost the same as that by using gibbsite after milling for 3 h without preheating. Judging from ΔHh, continuous milling of gibbsite without cooling reduces the degree of activation down to 1/10. In contrast, no such reduction is observed when gibbsite is preheated.

Affiliations: 1: Inorganic Technology Group, Kyoto Research Laboratory, Sekisui Chemical Co., Ltd, 2-2 Kamichohi-cho, Kamitoba, Minami-ku, Kyoto 601-8105, Japan; 2: Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Create email alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Name:*
    Email:*
    Your details
    Name:*
    Email:*
    Department:*
    Why are you recommending this title?
    Select reason:
     
     
     
     
    Other:
     
    Advanced Powder Technology — Recommend this title to your library

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation