Determination of Ideal Broth Formulations Needed to Prepare Hydrous Aluminum Oxide Microspheres via the Internal Gelation Process

Collins, Jack Lee ; Pye, S. L.

Oak Ridge National Laboratory

关键词: Urotropin;    Gelation;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Urea;    Aluminium Oxides;   

DOI  :  10.2172/947140
RP-ID  :  ORNL/TM-2009/006
RP-ID  :  DE-AC05-00OR22725
RP-ID  :  947140

美国|英语

来源: UNT Digital Library

【 摘 要 】

A simple test-tube methodology was used to determine optimum process parameters for preparing hydrous aluminum oxide microspheres by the internal gelation process. Broth formulations of aluminum, hexamethylenetetramine, and urea were found that can be used to prepare hydrous aluminum oxide gel spheres in the temperature range of 60-90 C. A few gel-forming runs were made in which microspheres were prepared with some of these formulations in order to equate the test-tube gelation times with actual gelation times. These preparations confirmed that the test-tube methodology is reliable for determining the ideal broths.