Title: Process for preparing humic acid by aerating stalks
Application Number: 99119641 Application Date: 1999.09.23
Publication Number: 1289789 Publication Date: 2001.04.04
Approval Pub. Date: Granted Pub. Date: 2002.03.27
International Classifi-cation: C08H5/00
Applicant(s) Name: Inst of Chemical Metallurgy, Chinese Academy of Sc Address: 100080
Inventor(s) Name: Chen Hongzhang, Liu Jian
Attorney & Agent: li bai
Abstract:
     A process for preparing humic acid from stalk includes such steps as steam pressure blasting, adding alkaline substance, separating to obtain the liquid mixture of two humic acids, and regulating pH values to obtain two solid humic acids. Its advantages include fast and stable process, no pollution, high ouput rate and low cost.
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