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lignite humic acid production process

REGENERATED HUMIC ACIDS OBTAINED BY THE AIR OXIDATION OF SOUTH MORAVIAN LIGNITE. PART. 1. PRODUCTION AND CHARACTERIZATION.

nitric acid potassium manganate or by air oxidation have been reported as regenerated humic acids RHA 9 . Fig. 1. Coal oxidation as and ideal inverse diagenetic process adopted from ref. 9 Fig 2. HPSEC analysis of humic acid extracted from parental

Indian Patents. 201577:A PROCESS FOR THE PRODUCTION OF HUMI GOLD A SALT OF HUMIC ACID

A PROCESS FOR THE PRODUCTION OF HUMI GOLD A SALT OF HUMIC ACID Abstract It is well-established fact that the humus matter arising from chemical and biological degradation of plant and animal residues in soil serves to stimulate the plant growth.

Valorization of lignite wastes into humic acids: Process optimization energy efficiency and structural features analysis

Humic acid Lignite Optimization Structural features Energy efficiency Reactor abstract The present work investigates the optimization of humic acids HAs production from lignite processing ...

Valorization of lignite wastes into humic acids: Process optimization energy efficiency and structural features analysis - ScienceDirect

Extraction of humic acid from lignite coals using stirred tank reactors STRs : assessment of process parameters and final product charaterization Iran. J. Soil Water Res. 50 2019 pp. 1111 - 1125 10.22059/ijswr.2018.260201.667947

Lignite - Wikipedia

Leonardite is an oxidized form of lignite which also contains high levels of humic acid. 42 Jet is a hardened gem-like form of lignite used in various types of jewelry. 32 Production Germany is the largest producer of lignite 43 followed by China Russia and .

CN104629062A - Method for extracting fulvic acid from lignite - Google Patents

The invention discloses a method for extracting fulvic acid from the lignite and belongs to the method for extracting the fulvic acid. The method comprises the following steps: 1 weathering the lignite crushed to 80-200 mesh in the sunlight; wherein the weathering ...

Humic Acid Production Process - YouTube

Hümik Asit Üretimi

Effectiveness of the process for production humic acids from lignite by alkaline extraction at varying time and temperature

Lignite was leached with H2O and aq. soins of KOH NH 3 H3PO4 HNO3 EDTA diethylenetriaminopentaacetic acid and Na tripolyphosphate at room temp for 14 days to sep. humic acids and modify the ...

Process Removes Humic Acids from Lignite C and EN Global Enterprise

143RD ACS NATIONAL MEETING Fuel Chemistry Bureau of Mines& 39; chemists have come up with a fast low–cost method for obtaining humic acids from oxidized lignite. The method an acetone–water–mineral acid extraction process gives good yields of humic acids with less than 2% ash. The acids hold promise as a high–nitrogen soil conditioner and fertilizer Roger W. Youngs of BuMines& 39; Lignite ...

Extraction and purifi ion of humic acids from lignite wastes using alkaline treatment and membrane ultrafiltration - ScienceDirect

Humic acids HAs are high molecular weight biopolymers generally obtained from humic compounds of organic matter distributed in the soil peats and sapropels natural waters low rank coals leonardite and lignite coals Savel& 39;eva et al. 2015 2017; Huculak-Mączka et al. 2018; Fuentes et al. 2018 . .

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