Extraction of coal-tar pitch using NMP/ILs mixed solvents
文献类型：期刊论文
| 作者 | Huang JinCheng1,2; Li ChunShan2; Bai Lu2; Nie Yi2; Wang ErQiang1; He YuJian1; Zhang SuoJiang2 |
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 57期号:12页码:1760-1765 |
| 关键词 | coal-tar pitch ionic liquid NMP extraction H/C |
| ISSN号 | 1674-7291 |
| 其他题名 | Sci. China-Chem. |
| 中文摘要 | Coal-tar pitch (CP) is a promising carbon raw material for producing needle coke, carbon fiber etc. During processing, the H/C ratio, ash content, and quinoline insoluble (QI) in the CP are the key factors that influence the material preparation. In this study, NMP was selected to extract CP first; then [BMIM]Cl/NMP mixed solvent was used; and finally a series of ionic liquids (ILs) mixtures with NMP were developed for the extraction of CP to obtain the refined pitch. The extracts were analyzed via elemental analysis, TGA, FT-IR, and C-13-NMR. Results indicate that different NMP/IL mass ratios or different kinds of ILs have impact on the extraction yield. The relationship of the hydrogen to carbon (H/C) ratio changed with different solvents and QI extracts were obtained. Results showed that the H/C ratios changed little between NMP extracts and could be adjusted by changing the NMP/ILs mass ratio or using different ILs. The extracts are suitable for preparation mesophase pitch because of no ash content, low QI, and appropriate H/C ratios. As a result, NMP can be used to refine pitch. In addition, [BMIM]Cl is good mixed with NMP for CP extraction, because it can obtain a relatively high yield under the same extraction conditions. |
| 英文摘要 | Coal-tar pitch (CP) is a promising carbon raw material for producing needle coke, carbon fiber etc. During processing, the H/C ratio, ash content, and quinoline insoluble (QI) in the CP are the key factors that influence the material preparation. In this study, NMP was selected to extract CP first; then [BMIM]Cl/NMP mixed solvent was used; and finally a series of ionic liquids (ILs) mixtures with NMP were developed for the extraction of CP to obtain the refined pitch. The extracts were analyzed via elemental analysis, TGA, FT-IR, and C-13-NMR. Results indicate that different NMP/IL mass ratios or different kinds of ILs have impact on the extraction yield. The relationship of the hydrogen to carbon (H/C) ratio changed with different solvents and QI extracts were obtained. Results showed that the H/C ratios changed little between NMP extracts and could be adjusted by changing the NMP/ILs mass ratio or using different ILs. The extracts are suitable for preparation mesophase pitch because of no ash content, low QI, and appropriate H/C ratios. As a result, NMP can be used to refine pitch. In addition, [BMIM]Cl is good mixed with NMP for CP extraction, because it can obtain a relatively high yield under the same extraction conditions. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | IONIC LIQUIDS ; LIQUEFACTION RESIDUE ; ORGANIC-SOLVENTS ; DISSOLUTION ; ASPHALTENES ; LIGNITE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000346047500020 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11752]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang JinCheng,Li ChunShan,Bai Lu,et al. Extraction of coal-tar pitch using NMP/ILs mixed solvents[J]. SCIENCE CHINA-CHEMISTRY,2014,57(12):1760-1765. |
| APA | Huang JinCheng.,Li ChunShan.,Bai Lu.,Nie Yi.,Wang ErQiang.,...&Zhang SuoJiang.(2014).Extraction of coal-tar pitch using NMP/ILs mixed solvents.SCIENCE CHINA-CHEMISTRY,57(12),1760-1765. |
| MLA | Huang JinCheng,et al."Extraction of coal-tar pitch using NMP/ILs mixed solvents".SCIENCE CHINA-CHEMISTRY 57.12(2014):1760-1765. |
入库方式： OAI收割
来源：过程工程研究所
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