ZnO and SiO2 Recovery from Upgraded of Pyrolytic Carbon Black by Improved Solid-Liquid Extraction Method
Russian Journal of Applied Chemistry, cilt.97, sa.11, ss.846-858, 2024 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 97 Sayı: 11
- Basım Tarihi: 2024
- Doi Numarası: 10.1134/s1070427224605060
- Dergi Adı: Russian Journal of Applied Chemistry
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.846-858
- Anahtar Kelimeler: pyrolytic residue, recovered carbon black, solvent extraction, zinc recovery
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Abstract: Pyrolytic fuel and pyrolytic carbon black are obtained as two major products from the pyrolysis of scrap tires. Pyrolytic carbon black, which contains high ash and carbonaceous residues, cannot be used like commercial carbon blacks in polymer industry. In this study, not only ash removal but also carbonaceous residues were extracted with solvent to obtain high grade pyrolytic carbon black, which is close to commercial carbon black. Extraction efficiency and surface activity were significantly improved by adding oxidizing agents as well as wetting and dispersive, chelating and complexing additives in the acid stage. More sulfur and SiO2 were removed with the surfactant added in the basic stage. The properties of refined pyrolytic carbon black reached levels close to commercial carbon black N330. The zinc-rich metal solution obtained in the acidic method contains micro- and macro-nutrients, which are important fertilizers for plants. In addition, SiO2 obtained in the basic phase is a good filler in polymer industry.