Reuse and Recycle of Ceria Glass Abrasives
Project/Area Number |
23656567
|
Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
Allocation Type | Multi-year Fund |
Research Field |
Recycling engineering
|
Research Institution | Fukushima University |
Principal Investigator |
SATO Michio 福島大学, 共生システム理工学類, 教授 (10396591)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | レアアース / リサイクル / 酸化セリウム / 研磨材 / 凍結解凍 / 二次粒子形成 / ガラス研磨 / 微粒子回収 / 遠心分離 |
Research Abstract |
Cerium-oxide abrasive is widely used in fine polishing processes of optical glass products. We have discovered that the abrasive particulates agglomerated and formed aggregates by freezing and thawing the used slurry. It was found that the aggregate formation can be monitored by measuring the slurry temperature during freezing. The aggregate size decreased with increasing the rate of freezing, therefore, the size can be controlled by the freezing conditions. The aggregate formation was aided by glass components in the used slurry. It was proved by polishing test using a production-scale polishing machine that the recovered abrasive had sufficient polishing performance.
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Report
(4 results)
Research Products
(24 results)