改进固液萃取法回收热解炭黑中氧化锌和二氧化硅

IF 0.6 4区 化学 Q4 CHEMISTRY, APPLIED
Ufuk Sancar Vural, Abdullah Yinanc, H. Cahit Sevindir
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引用次数: 0

摘要

废轮胎热解的两大主要产物是热解燃料和热解炭黑。热解炭黑含有高灰分和高碳质残留物,不能像商品炭黑一样用于聚合物工业。在本研究中,除了除灰外,还对含碳渣进行溶剂萃取,得到了与商品炭黑接近的高品位热解炭黑。在酸性阶段加入氧化剂、湿润分散剂、螯合络合剂等,可显著提高萃取效率和表面活性。在碱性阶段加入表面活性剂可以去除更多的硫和SiO2。精制热解炭黑的性能达到接近商品炭黑N330的水平。酸法制备的富锌金属溶液中含有微量和大量的营养物质,是植物的重要肥料。此外,在碱性相中得到的SiO2是聚合物工业中很好的填料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

ZnO and SiO2 Recovery from Upgraded of Pyrolytic Carbon Black by Improved Solid-Liquid Extraction Method

ZnO and SiO2 Recovery from Upgraded of Pyrolytic Carbon Black by Improved Solid-Liquid Extraction Method

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.

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来源期刊
CiteScore
1.60
自引率
11.10%
发文量
63
审稿时长
2-4 weeks
期刊介绍: Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.
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