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Citation: HE Yun-Long, LIU Da-Qiang. Raising Productivity of Fulvic Acid from Peat via Oxido-Degradation with Nitric Acid[J]. Chinese Journal of Applied Chemistry, ;2003, 20(12): 1220-1221. shu

Raising Productivity of Fulvic Acid from Peat via Oxido-Degradation with Nitric Acid

HE Yun-Long ^, ,
LIU Da-Qiang

1.
Harbin University of Science and Technology, Harbin 150080

Corresponding author: HE Yun-Long,
Received Date: 25 March 2003
Available Online: 30 July 2003
Fund Project: 机械工业部资助项目(JC9802005) (JC9802005)

The oxdio-degradation of peat by nitric acid followed with extraction of humic acid(HA) and fulvic acid(FA) by sodium hydroxide has been carried out to increase the productivity of FA from peat. The additional FA could be obtained from filtrate by precitation with Al₂(SO₄)₃solution. At optimum conditions the extracts of HA and FA from peat were 45.11% and 7.88%, respectively.
- humic acid,
- fulvic acid,
- peat,
- nitric acid oxido-degradation
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