AN EXTRACTION OF CATALYST FROM INDUSTRIAL WASTE FOR USE IN SYNTHESIS OF HIGH QUALITY CARBON NANOTUBES (CNTs)

The present invention provides a method for extraction of nanoparticle hematite / ferrite catalyst from industrial waste for use in synthesis of high quality carbon nanotubes (CNTs), the method includes: a) using electric arc furnace (EAF) slags from industrial waste as a source or starting material...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Zaiton Binti Abdul Majid, Nor Aziah Buang, Muhammad Zamir Bin Othman, Mohamad Saufi Bin Rosmi
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention provides a method for extraction of nanoparticle hematite / ferrite catalyst from industrial waste for use in synthesis of high quality carbon nanotubes (CNTs), the method includes: a) using electric arc furnace (EAF) slags from industrial waste as a source or starting material for the extraction of nanoparticle hematite / ferrite; b) grinding and sieving the EAF slags into predetermined sizes for treating with crystalline ammonium chloride; wherein the extraction is based on dissolution process of nanoparticle hematite / ferrite from the electric arc furnace (EAF) slags through reflux and re-precipitation processes by using potassium hydroxide; and wherein treated nanoparticle hematite / ferrite is used as an unsupported catalyst in the preparation of multi-walled carbon nanotubes (MWCNTs) via chemical vapour deposition (CVD) using acetylene as carbon source.