WEKO3
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RECOVERY OF PHOSPHORIC ACID FROM WASTE ACID MIXTURE WITH SOLVENT EXTRACTION
http://hdl.handle.net/10112/5780
http://hdl.handle.net/10112/578022fd52cc-3ae2-43be-912a-8aec8f983c0c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KU-1100-20040000-03.pdf (11.7 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-12-15 | |||||
| タイトル | ||||||
| タイトル | RECOVERY OF PHOSPHORIC ACID FROM WASTE ACID MIXTURE WITH SOLVENT EXTRACTION | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | departmental bulletin paper | |||||
| 著者 |
Motoda, Yoshinori
× Motoda, Yoshinori× Morikawa, Masataka× Murayama, Norihiro× Yamamoto, Hideki× Shibata, Junji |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 28091 | |||||
| 姓名 | 元田, 善規 | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 28092 | |||||
| 姓名 | 森川, 正貴 | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 28093 | |||||
| 姓名 | 村山, 憲弘 | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 28094 | |||||
| 姓名 | 山本, 秀樹 | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 28095 | |||||
| 姓名 | 芝田, 隼次 | |||||
| 概要 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | By applying a solvent extraction method for the etching waste solution discharged from the manufacturing process of liquid crystal display, the removal of acetic acid and nitric acid were carried out from the waste acid mixture containing phosphoric, acetic and nitric acids to obtain phosphoric acid as the raffinate. Fundamental studies on the recovery of phosphoric acid were conducted by using Tri-octyl phosphate (TOP) as the extractant for acetic acid and nitric acid. From the results, demonstration tests using a mixer-settler equipment were carried out to obtain crude phosphoric acid. Acetic and nitric acids were selectively extracted by TOP from the waste acid mixture, which contains phosphoric acid as a main component. From the McCabe Thiele analysis, almost all of the acetic and nitric acids were removed by a countercurrent multi-extraction operation of phase ratio(A/O) 0.4 and 6-stage. When TOP loading acids was contacted with the water under the countercurrent operation conditions of phase ratio (0/A) 1.0 and 4-stage, 99% of acetic acid and 99.5% of nitric acid were stripped from the organic phase, respectively. From these results obtained by the fundamental studies, a demonstration test was carried out for the extraction of acetic and nitric acids by using a mixer-settler equipment. Consequently, the extractions of acetic and nitric acids in the waste acid mixture were about 95% and 98%, respectively, and crude phosphoric acid can be obtained as a raffinate after the solvent extraction. |
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| 書誌情報 |
関西大学工学研究報告 = Technology reports of the Kansai University 巻 46, p. 21-30, 発行日 2004 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 04532198 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00046916 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | 関西大学工学部 | |||||
