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Production and preparation process for fulvic acid

A preparation process, a technology for fulvic acid, applied in the direction of organic chemistry, etc., can solve the problems of difficulty in adoption, stay in, cumbersome, etc., and achieve the effects of high yield, low production cost and simple equipment

Active Publication Date: 2016-12-14
王墨林
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, this requires repeated measurement of the pH value and adjustment with alkali, which is very cumbersome, so this method is still in the laboratory stage, and it is difficult to adopt it in industrial production.

Method used

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Examples

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Embodiment Construction

[0015] The first kind of embodiment: the raw material lignite of fulvic acid is pulverized to 80 order, add 49-51 ℃ of warm water, preferably 50 ℃ of water temperature, the weight ratio of lignite powder dry weight and water=1: 18-22, preferably 1: 20 , then slowly add H under stirring 2 o 2 , lignite powder and H 2 o 2 The mass ratio of = 1:0.68-0.72, H 2 o 2 The rate of addition is limited when the reaction temperature is lower than 65°C. After the oxidation and hydrolysis of lignite is completed, the mixture is separated from solid and liquid and dried to obtain the fulvic acid product. A specific process step is recommended below.

[0016] 1. Raw material preparation.

[0017] (1) Weathered coal, WEATHERED COAL is affected by weathering, the oxygen content is increased, the calorific value is low, and the low-quality coal contains obvious changes such as regenerated humic acid. Due to different environments, the chemical composition and properties of weathered coal ...

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Abstract

The invention relates to the field of chemical product production, in particular to a production and preparation process for fulvic acid. The production and preparation process is characterized in that a raw material lignite for preparing the fulvic acid is smashed into 80 mesh and added into warm water at the temperature of 49 DEG C to 51 DEG C, and the ratio of the dry weight of the lignite powder to the weight of the water is 1:(18-22), H2O2 is slowly added in a stirring state, the adding rate of H2O2 is limited by the reaction temperature lower than 65 DEG C, and the mass ratio of the lignite powder to H2O2 is 1:(0.68-0.72); after lignite is subjected to an oxydrolysis reaction, the mixture is subjected to solid-liquid separation and dried, and a fulvic acid product is obtained. The production and preparation process has the advantages that the leonardite is adopted as the raw material, so that the production cost is low; hydrogen peroxide is adopted as an oxidizing agent, so that environmental friendliness is achieved, and pollution is avoided; adopted equipment is simple, the production conditions are easy to control, the process route is feasible, the technical index is stable, the production and preparation process is suitable for large-scale industrial production, and the fulvic acid is high in yield and purity; compared with an imported product, the cost is greatly reduced, and conditions are created for full utilization of low-quality coal resources and substituting for imported goods.

Description

technical field [0001] The invention relates to the production field of chemical products, namely a production and preparation process of fulvic acid. Background technique [0002] Fulvic acid, also known as fulvic acid, is a water-soluble component in humic acid. Because its molecular weight is usually between 200-1000, it is an organic mixture containing active functional groups such as hydroxyl and carboxyl. It has good water solubility and relatively strong penetration. Strong, it is a humic acid product with a wide range of applications and high economic benefits. It is widely used in agriculture, industry, medicine and health and other fields, with great development potential. Studies have found that the content of humic acid in low-rank coal such as lignite and peat is relatively high, but the molecular weight of humic acid extracted directly from raw coal is relatively large, and the content of fulvic acid is low. The yield of fulvic acid was increased. Among them,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H99/00C08H7/00C07G99/00
CPCC08H6/00C07G99/00
Inventor 王墨林
Owner 王墨林
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