| METHOD OF MODIFYING SORBENTS BASED ON CELLULOSE FOR EXTRACTING HEAVY METAL IONS FROM AQUEOUS SOLUTIONS | |
| 2024-02-12 | |
| 专利权人 | UNIV IVAN CHEM TECHNOLOGY (UYIV-Non-standard) |
| 申请日期 | 2024-02-12 |
| 专利号 | RU2829771-C1 |
| 成果简介 | NOVELTY - Invention relates to chemical industry and specifically to methods of extracting heavy metal ions by sorption on natural cellulose-containing sorbents. Method of modifying polymer sorbents based on cellulose consists in depositing carbon nanotubes (CNT) on them, which are preliminarily oxidised, washed with distilled water, dried and treated with thionyl chloride. CNTs are oxidised with concentrated sulphuric acid. After treatment with thionyl chloride, CNTs are additionally treated with ethylenediamine at ethylenediamine/CNT module of 50-200 at temperature of 60-80 °C for 1-3 hours, followed by washing with distilled water and ethyl alcohol, squeezing and drying to constant weight. Sorbents are pretreated with citric acid solution with concentration of 0.3-0.5 M at acid solution/sorbent modulus of 10-20 at temperature of 110-130 °C for 2-4 hours. Modification with treated CNTs in amount of 10-20% of sorbent weight is carried out in toluene. USE - Chemistry. ADVANTAGE - High degree of extraction of heavy metal ions from aqueous solutions. 1 cl, 1 tbl, 9 ex |
| IPC 分类号 | B01J-020/24 ; B01J-020/32 ; C02F-001/28 ; C02F-001/62 |
| 国家 | 俄罗斯 |
| 专业领域 | 化学化工 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/18162 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | UNIV IVAN CHEM TECHNOLOGY (UYIV-Non-standard) |
| 推荐引用方式 GB/T 7714 | NIKIFOROVA T E,VOKUROVA D A,NATAREEV S V,et al. METHOD OF MODIFYING SORBENTS BASED ON CELLULOSE FOR EXTRACTING HEAVY METAL IONS FROM AQUEOUS SOLUTIONS. RU2829771-C1[P]. 2024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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