| Item type |
文献 / Documents(1) |
| 公開日 |
2016-09-09 |
| アクセス権 |
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アクセス権 |
open access |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版社版DOI |
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関連識別子 |
https://www.jstage.jst.go.jp/article/jcej/48/2/48_14we171/_article |
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関連名称 |
10.1252/jcej.14we171 |
| 出版タイプ |
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|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
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|
タイトル |
Recovery of the Phosphorus from the Nitric Acid Extract of Powder Collected in a Bag Filter during the Recycling of Used Fluorescence Tubes |
| 著者 |
杉山, 茂
キノシタ, ハルカ
シノミヤ, イッペイ
キトラ, リュウタ
中川, 敬三
加藤, 雅裕
マスモト, コウヘイ
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| 抄録 |
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内容記述 |
During the recovery of phosphorus from the powder collected in a bag filter during the recycling of used fluorescence tubes (bag-powder), the batch method with aqueous HNO3 was used to examine the elution behavior of aqueous phosphate contained in the bag-powder. The main components of the bag-powder included Ca2+, PO4 3- and Y3+ along with Si4+, Sr2+ and lanthanide cations such as La3+ and Ce4+. Therefore, it seemed possible that, with the selective dissolution of Ca2+ and PO4 3- from the bag-powder, these lanthanide cations in the residue could be enriched. With the batch method, most of the phosphate in the bag-powder was dissolved within 0.2 min using 1.0 mol/L HNO3. The dissolution behavior of calcium cation was similar to that of the phosphate. In contrast, the dissolution of yttrium, the content of which was the highest among the lanthanide cations in the bag-powder, was increased with the dissolution times, reaching complete dissolution after 24 h. The Sr2+, La3+ and Si4+ in the bag-powder, however, did not dissolve under the same conditions. Although Ca2+, PO4 3- and Y3+ were the main components in the nitric acid extract, Y3+ was separated as YPO4 at pH = 4.0, while Ca2+ and PO4 3- were separated as calcium phosphates at pH= 7.0. These results revealed that the separation of calcium phosphates, YPO4 and some residue was possible, and resulted in the enrichment of lanthanide cations along with the recovery of phosphorus from the bag-powder. Using the present technique, 91% of the P in the bag-powder was recovered. |
| キーワード |
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主題 |
Used Fluorescence Tube |
| キーワード |
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|
主題 |
Recovery of Phosphate |
| キーワード |
|
|
主題 |
Enrichment of Rare Earth Elements |
| 書誌情報 |
en : Journal of Chemical Engineering of Japan
巻 48,
号 2,
p. 99-103,
発行日 2015-02
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| 収録物ID |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
00219592 |
| 収録物ID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00709658 |
| 権利情報 |
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|
権利情報 |
Copyright © 2015 The Society of Chemical Engineers, Japan |
| EID |
|
|
識別子 |
280181 |
| 言語 |
|
|
言語 |
eng |
LID201609092002.pdf (395 KB)
