Synthesis and characterization of inorganic colour pigment from spent acid

• Main Authors: Woon H.S., Nicklaane K., Ewe L.S., Lim K.P., Ismail I., Tan C.Y.
• Other Authors: 56287541700
• Format: Conference Paper
• Published: American Institute of Physics Inc. 2023

This paper proposes a new method of recycling spent acid from local cold rolling industry into iron oxide pigment that to be applied to the roof tiles. Pickling is a process in which a hot-rolled steel that has rusty scale is dipped into hydrochloric acid prior to further processing. The waste acid...