with weathered coal humic acid production methods

Optimization of extraction method and characterization of ...

Optimization of extraction method and characterization of humic acid derived from coals and composts (Pengoptimuman kaedah pengekstrakan dan pencirian asid humik daripada arang batu dan kompos) J. Asing*, N.C. Wong* and S. Lau** Keywords: humic acid, coals and composts, extraction techniques, chemical characteristics Abstract

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Weathered Coal, Weathered Coal Suppliers and Manufacturers ... with weathered coal humic acid production methods

Related Searches for weathered coal: coal coking coal anthracite coal indonesian coal steam coal bituminous coal lignite coal thermal coal smokeless coal white coal indonesia coal russian coal sub-bituminous coal types of coal brown coal More...

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Immobilization of lead by application of ...

Weathered coal, as waste coal of coal-mining production, widely exists in the mining-area, which has not been used as useful mineral resources at all times (Li et al.). Weathered coal have large amounts of humic and fulvic acids (Wu et al.), so it have a …

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Experimental Study on Extracting Humic Acid from Lignite

China is abundant in coal resource; the lignite of China contains a lot of humic acid. Extraction humic acid from lignite creates favorable conditions for the development of coal industry and agriculture industry, has broad utilization prospect. By combining the method of nitric acid preoxidation and the method of alkali solution and acid ...

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Natural weathering of coal

During chemical weathering of coal, humic acids are produced by the oxidation and hydrolysis of the organic substances. Under conditions of very intense weathering, humic acids break down to soluble coal acids and ultimately to carbon dioxide and water.

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Method of production of concentrate of humic acid from ...

The method of production of the concentrate of humic acid from brown coal, including its crushing to obtain microparticles, preparing the suspension in the diluted solution of alkali, and extraction, with mechanical stirring of the suspension in the reactor-mixer from the microparticles of humic acid coal.

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Production method of new bio-fertilizer

The process of producing new type of fertilizer includes the following steps: replacing Ca2+ and Mg2+ ions in humic acid of weathered coal containing water less than% while adding stabilizer to deactivate the replaced Ca2+ and Mg2+ ions for preventing re-complexing with humic acid and raising ...

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Humic Growth SolutionsHumi[K] Powder with weathered coal humic acid production methods

This humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances. This humic acid source is similar to the commonly found Leonardite (lignite coal), but our source contains a higher concentration of Humic Acids and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.

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High Quality Water Extracted Agricultural Humic Acid ...

We manufacture the highest quality Humic Acid with the highest levels of fulvic and humic acid on the market. Our goal is to maximize soil health and therefore farm profitability and sustainability at a reasonable cost. Our product is unlike all other humic acids, which are chemically extracted and contain little to no fulvic/humic acid.

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with weathered coal humic acid production methods

with weathered coal humic acid production methods. USAProduction of humic acidGoogle Patents. I have now found that humic acid can be recovered from naturally occurring weathered lignites or from oxidized coal by extracting these materials with an aqueous solution of a sulfite salt, in which the solution has a pH of at least about ...

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&TRENDS Humic & Fulvic Acids: The Black Gold of

the market so that humic acids can be called again “the black gold of agriculture” has become a top priority ... Leonardite type coal identi-fied in Victoria during coal exploration programs for the electricity industry in ... method and liquid phase analysis. Worth noting that stud-ies using humic substances

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Effect of Weathered Coal on the Leaching Behavior of Lead ...

eral Pb-contaminated soils with weathered coal addi-tions using leaching columns under acid precipitation.Material and Methods.Soil and Weathered Coal Proprieties The soil sample is calcareous cinnamon soil derived from loess parent material. The soil and weathered coal were obtained from an opencast mine area in Pingshuo, Shanxi ... with weathered coal humic acid production methods

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Method to produce humic acids and humates from peat with weathered coal humic acid production methods

A method of obtaining humic acids from brown coal, including coal processing solution of alkali, low-frequency acoustic vibrations and cavitation vibration jets in the device, comprising a housing, a device for supply and removal of the interacting phases, working bodies and the vibration exciter [RF patent №, CLN/,].

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Process Removes Humic Acids from Lignite

Bureau of Mines' 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% ash.

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Grafts of plant polyphenol and weathered coal humic acid ...

The invention provides a graft for plant polyphenol and a weathered humic acid degradation product and a grafting method thereof. As shown by experiments, the graft for the plant polyphenol and the weathered humic acid degradation product has the efficacy of improving cardiovascular diseases, has the advantages of improving precipitation of cholesterol in vascular endothelium, avoiding damage ...

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Characterization of pH-fractionated humic acids derived ...

To reduce the compositional and structural heterogeneity of humic acids (HAs) and achieve better use of HA resources, in this study, we report a new sequential dissolution method for HAs derived from Chinese weathered coal.

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Humic Acid Equipment Sets,Humic Acid Fertilizer Equipment with weathered coal humic acid production methods

Humic acid process uses chemical method to extract humus from weathered coal or lignite, so it can be used as raw material of high-end organic fertilizers. Process Our humic acid equipment sets use alkali solubilization and acid precipitation process (namely alkaline lysis) to produce humic acid.

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The Truth about Humic Acid Products

Humatethe salts of humic acids, collectively, or the salts of humic acid specifically. (The usage must be determined from the context.) Fulvic acidthe acid radical found in humic matter which is soluble in alkali, acid, methyl ethyl ketone, and methyl alcohol. Fulvatesthe salts of fulvic acid. with weathered coal humic acid production methods

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Production of humic substances through coal-solubilizing ...

In this paper, the production of humic substances (HS) through the bacterial solubilization of low rank coal (LRC) was evaluated. The evaluation was carried out bybacterial strains isolated in microenvironments with high contents of coal wastes.

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USA

Filed Dec.,, Ser. No.,Claims. (Cl.) This invention relates to the production of humic acid and more particularly, to a method for extracting humic acid from naturally occurring sources such as leonardite or from artificial sources such …

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New Method for the Production of Barium Humate from ...

Coal humic substances are formed as intermediate product during coal formation. H. Dogan et al.Humic acid is a chemically heterogeneous compound having different types of functional groups in different proportions and configurations. It contains carboxyl ... production method.

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Relationship between the Chemical Structure of Humic ...

weathered coal using the IHSS method. Fulvic-like organics produced by the ozone oxidation of humic acid were also prepared by a method reported previously. Their main chemical properties related to hygroscopicity were also studied by elemental analysis and the measurement of functional group contents. Humic and fulvic acids were allowed to

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Study on the Improved Method of Extracting Humic Acid from ...

In this study, the changes of carbon content in humic acid were compared between the conventional method and pre-treated acidification method using weathered coal and lignite as raw materials. The results showed that the method extracting humic acid after pre-treatment was superior to the conventional method.

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Nebraska Humic Company

This humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances, similar to Leonardite (lignite coal), except it contains a higher concentration of Humic Acids and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.

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Oxidized Lignite / Humic Acid Derivatives

has shown that humic acids derived from lignite coal by themselves do not significantly increaseproduction, yield or quality even in cases where they …

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THE NMR SPECTROSCOPY STUDY OF FULVIC ACID FROM GONG …

Using the NNe technique and method of prolonged pulse repetition time, quantitative estimations were made for carbon of different functional groups in fulvic acid. The results indicated that aromatic carboxylic acids might be the major structural components of the fulvic acid from Gong-Xian weathered coal. with weathered coal humic acid production methods

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Characteristics of Humic and Fulvic Acids Extracted from ... with weathered coal humic acid production methods

Basic characteristics of humic acid (HA) and fulvic acid (FA) extracted from three kinds of weathered coal of different coal-producting districts (China) by the standard method of International Humic Substances Society (IHSS), were compared with those of already known substances from peat moss ...

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Humic Growth SolutionsCDFA Humi[K] Liquid with weathered coal humic acid production methods

This humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances. Our Humic source is similar to the commonly found Leonardite (lignite coal), BUT our source contains a higher concentration of Humic substances and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.

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Characteristics of Humic and Fulvic Acids Extracted from ...

Weathered coal contains much humic acid and a little fulvic acid. Therefore, in this work, the production of fulvic acid, the most valuable humic substance because of its water-solubility, was ...

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Different chemical activation of humic acid from weathered ...

Different chemical activation of humic acid from weathered coal affect the growth of tomatoes and cabbage: Crop productivity is the basis of certain nutrients for human life which

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Sorption of norfloxacin onto humic acid extracted from ...

Read "Sorption of norfloxacin onto humic acid extracted from weathered coal, Journal of Environmental Management" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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