| Item type |
文献 / Documents(1) |
| 公開日 |
2024-01-17 |
| アクセス権 |
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|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.3363/prb.39.23 |
|
|
言語 |
ja |
|
|
関連名称 |
10.3363/prb.39.23 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
KEY FACTORS FOR THE SEPARATION OF SILICON AND IRON DURING PHOSPHORUS RECOVERY FROM SLAG DISCHARGED FROM THE DOUBLE-SLAG REFINING PROCESS |
|
言語 |
en |
| 著者 |
杉山, 茂
ハシモト, タクミ
霜田, 直宏
ヤマモト, タカイク
ヤノ, ヒロム
マツナガ, ヒサヒロ
ナカムラ, ヨシユキ
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
In the present study, we developed a technology for concentrating and recovering phosphorus from slag-like phosphorus-containing unused resources and applied it to slag discharged during the latest steelmaking process, that is, double-slag refining process (DRP). The technology we developed consists of the following four processes: Process (1) is the initial acid elution; Process (2) involves alkali precipitation; Process (3) is the second acid elution; and, Process (4) utilizes ion-exchange. In Process (1), the addition of DPR slag to 0.5 M of a nitric acid solution for 24 min resulted in sufficient phosphorus dissolution. In Process (2), ammonia was added to the dissolved solution, and phosphorus was precipitated with high efficiency. The timing of the addition of ammonia significantly influenced the removal of silicon and iron, which would have been inconvenient to accomplish in subsequent processes. In Process (3), the precipitation obtained in Process (2) was re-dissolved in a nitric acid solution. The dissolution of phosphorus together with other elements progressed sufficiently, and we confirmed that silicon could be completely separated as silica by using high-concentration nitric acid at this stage. The fact that silicon could be removed during Process (3) was an important finding, since silicon could not have been separated in the Process (4). In Process (4), by passing the phosphorus-containing solution obtained in Process (3) through an ion exchange resin, elements other than phosphorus and silicon could be removed, which confirms that the range of applications for this technology could be expanded. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Phosphorus recovery |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Sewage sludge molten slag |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Acid elution |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Alkali precipitation |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ion-exchange |
| 書誌情報 |
en : Phosphorus Research Bulletin
巻 39,
p. 23-28,
発行日 2023
|
| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
09184783 |
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18822363 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12109680 |
| 出版者 |
|
|
出版者 |
Japanese Association of Inorganic Phosphorus Chemistry |
|
言語 |
en |
| EID |
|
|
識別子 |
403396 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
prb_39_23.pdf (536 KB)
