IMPURITY REMOVAL AND MODIFICATION METHOD FOR PYROLYSIS CARBON BLACK OF WASTE TIRES

Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypochlorite; leaving to stand for layering; and performing centrifugation an...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, Ke, DUAN, Yongxin, HU, Jie, LIU, Yunxiao, KONG, Zhengqing, ZHOU, Lijuan
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypochlorite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. The modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled. L'invention divulgue un procédé d'élimination et de modification des impuretés, destiné au noir de carbone de pyrolyse de pneus usés, le procédé comprenant : la dispersion du noir de carbone de pyrolyse de pneus usés dans une solution alcaline