Leonardite - Wikipedia
WebLeonardite. Leonardite is a soft waxy, black or brown, shiny, vitreous mineraloid that is easily soluble in alkaline solutions. It is an oxidation product of lignite, associated with near-surface mining.
The relationship between Humalite, Leonardite, and Fertilizers.
WebJul 14, 2019 · The Differences Between Leonardite and Humalite. Leonardite ranges considerably in humic and fulvic acid content. For example, deposits can have as low as 10% humic acid content and as high as 78%. It’s derived from Lignite based coal and was formed in salt water deposits.
Sulfur-enriched leonardite and humic acid soil amendments …
WebOpen access. Published: 14 April 2020. Sulfur-enriched leonardite and humic acid soil amendments enhance tolerance to drought and phosphorus deficiency stress in maize ( Zea mays L.) Cengiz Kaya,...
Leonardite - Wikiwand
WebFrom Wikipedia, the free encyclopedia. Leonardite is a soft waxy, black or brown, shiny, vitreous mineraloid that is easily soluble in alkaline solutions. It is an oxidation product of lignite, associated with near-surface mining.
Chemical characterization of leonardite and its potential use as …
WebApr 16, 2016 · Leonardite is NOM which contains high amount of humic substances particularly humic acid. Leonardite from various deposits in Thailand was examined as a potential NOM for soil improvement....
Molecular characteristics of leonardite humic acid and the effect …
WebMay 1, 2020 · Abstract. The widespread occurrence of synthetic antibiotic sulfamethoxazole (SMX)— poses a potential risk to aquatic ecosystems where dissolved organic matter (DOM) may affect its photolysis. In this study, the elimination of SMX by solar photolysis was investigated in the presence of leonardite humic acid (LHA) and its fractions.
Full article: Characterization of humic acids derived from Leonardite ...
WebDec 24, 2015 · Leonardite is an oxidized form of lignite with brown and coal-like appearance and often found at shallow depths overlying more compact coal in a coal mine. Leonardite, named after A. G. Leonard in recognition of his research contributions to the substance and humified organic matter, contains 30–80% humic acid (HA) and can be …
NDIC invests in leonardite as key ingredient for batteries
WebFeb 23, 2018 · N orth Dakota has one of the richest leonardite deposits in the world. Humic acid has a variety of uses including fertilizer, human consumption, and cathode material for batteries.
Molecular compositions of humic acids extracted from leonardite …
WebSep 1, 2016 · The major raw material for their production is lignite and, in particular, its most oxidized variety, leonardite, which is the richest source of humic substances (HS).1–3 Recently, detailed information on the molecular compositions of HS from peat, soil and water reservoirs was obtained by Fourier transform ion cyclotron resonance mass spectro...
Leonardite | Minerals Technologies Inc.
WebLeonardite is a soft, dark colored, vitreous mineraloid that contains high concentrations of the active humic acid (>65%) and fulvic acid (≈4%). Leonardite is an oxidation product of lignite coal and mined from near surface pits. The commercial applications of leonardite are driven by the utilization of the humic acid and fulvic acid constituents.
- Some results have been removed
Skip to content