Reuse of nitric acid in the oxidative pretreatment step for preparation of humic acids from low rank coal of Mukah, Sarawak

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Reuse of nitric acid in the oxidative pretreatment step for preparation of humic acids from low rank coal of Mukah, Sarawak

Nitric acid is an effective material for production of humic acids. Nevertheless, it is an expensive item that renders the process unfavorable industrially. Study indicated that there was a possibility to reuse the nitric acid for oxidation however the resulting structures of humic acids was not stu...

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Bibliographic Details
Main Authors:	Sim Siong, Fong, Lau, Seng, Haslinda, Mat
Format:	Article
Language:	English
Published:	SciELO Publishing 2007
Subjects:	S Agriculture (General) TP Chemical technology
Online Access:	http://ir.unimas.my/id/eprint/7428/ http://ir.unimas.my/id/eprint/7428/1/Sim.pdf

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