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Preparation and utilization of metal oxide fine powder

Abstract

Metal oxide fine powders finds many applications in industry as new materials. It is very much necessary for the development of such powders to improve the domestic industry. The purpose of present research is to develop a process for the preparation and utilization of metal oxide fine powder. This project is consisted of two main subjects. (1) Production of ultrafine metal oxide powder: Ultrafine metal oxide powder is defined as a metal oxide powder of less than 100 nanometer in particle size. Experiments for the control of particle size and distributions in the various reaction system and compared with results of (2 nd year research). Various reaction systems were adopted for the development of feasible process. Ultrafine particles could be prepared even higher concentration of TiCl{sub 4} and lower gas flowrate compared to TiCl{sub 4}-O{sub 2} system in the TiCl{sub 4}-Air-H{sub 2}O system. Ultrafine Al{sub 2}O{sub 3} powders also prepared with the change of concentration and gas flowrate. Experiments on the treatment of surface characteristics of ultrafine TiO{sub 2} powders were investigated using esterification and surface treating agents. A mathematical model that can predict the particle size and distribution was also developed. (2) Preparation of cerium oxide for high-grade polishing  More>>
Authors:
Kim, Joon Soo; Jang, Hee Dong; Lim, Young Woong; Kim, Sung Don; Lee, Hi Sun; Lee, Hoo In; Kim, Chul Joo; Shim, Gun Joo; Jang, Dae Kyu [1] 
  1. Korea Inst. of Geology Mining and Materials, Taejon (Korea, Republic of)
Publication Date:
Dec 01, 1995
Product Type:
Technical Report
Report Number:
KR-95-C-19
Reference Number:
SCA: 320305; PA: KR-96:000288; EDB-96:120347; NTS-97:004253; SN: 96001629516
Resource Relation:
Other Information: PBD: Dec 1995
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CERIUM OXIDES; RECYCLING; WASTE PROCESSING; INDUSTRIAL WASTES; MONAZITES; LEACHING; MECHANICAL POLISHING
OSTI ID:
267545
Research Organizations:
Korea Inst. of Geology Mining and Materials, Taejon (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE96768095; TRN: KR9600288
Availability:
OSTI as DE96768095
Submitting Site:
KR
Size:
163 p.
Announcement Date:

Citation Formats

Kim, Joon Soo, Jang, Hee Dong, Lim, Young Woong, Kim, Sung Don, Lee, Hi Sun, Lee, Hoo In, Kim, Chul Joo, Shim, Gun Joo, and Jang, Dae Kyu. Preparation and utilization of metal oxide fine powder. Korea, Republic of: N. p., 1995. Web.
Kim, Joon Soo, Jang, Hee Dong, Lim, Young Woong, Kim, Sung Don, Lee, Hi Sun, Lee, Hoo In, Kim, Chul Joo, Shim, Gun Joo, & Jang, Dae Kyu. Preparation and utilization of metal oxide fine powder. Korea, Republic of.
Kim, Joon Soo, Jang, Hee Dong, Lim, Young Woong, Kim, Sung Don, Lee, Hi Sun, Lee, Hoo In, Kim, Chul Joo, Shim, Gun Joo, and Jang, Dae Kyu. 1995. "Preparation and utilization of metal oxide fine powder." Korea, Republic of.
@misc{etde_267545,
title = {Preparation and utilization of metal oxide fine powder}
author = {Kim, Joon Soo, Jang, Hee Dong, Lim, Young Woong, Kim, Sung Don, Lee, Hi Sun, Lee, Hoo In, Kim, Chul Joo, Shim, Gun Joo, and Jang, Dae Kyu}
abstractNote = {Metal oxide fine powders finds many applications in industry as new materials. It is very much necessary for the development of such powders to improve the domestic industry. The purpose of present research is to develop a process for the preparation and utilization of metal oxide fine powder. This project is consisted of two main subjects. (1) Production of ultrafine metal oxide powder: Ultrafine metal oxide powder is defined as a metal oxide powder of less than 100 nanometer in particle size. Experiments for the control of particle size and distributions in the various reaction system and compared with results of (2 nd year research). Various reaction systems were adopted for the development of feasible process. Ultrafine particles could be prepared even higher concentration of TiCl{sub 4} and lower gas flowrate compared to TiCl{sub 4}-O{sub 2} system in the TiCl{sub 4}-Air-H{sub 2}O system. Ultrafine Al{sub 2}O{sub 3} powders also prepared with the change of concentration and gas flowrate. Experiments on the treatment of surface characteristics of ultrafine TiO{sub 2} powders were investigated using esterification and surface treating agents. A mathematical model that can predict the particle size and distribution was also developed. (2) Preparation of cerium oxide for high-grade polishing powder: Used cerium polishing powder was recycled for preparation of high grade cerium oxide polishing powder. Also, cerium hydroxide which was generated as by-product in processing of monazite ore was used as another material. These two materials were leached respectively by using acid, and the precipitate was gained in each leached solution by adjusting pH of the solution, and by selective crystallization. These precipitates were calcined to make high grade cerium oxide polishing powder. The effect of several experimental variables were investigated, and the optimum conditions were obtained through the experiments. (author). 81 refs., 49 figs., 27 tabs.}
place = {Korea, Republic of}
year = {1995}
month = {Dec}
}