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Technology for producing high-purity humate by using coal

A humate and high-purity technology, applied in the field of coal production of high-purity humate, can solve the problems of complex extraction process, high extraction cost and low extraction rate, and achieves simple and practical process, low extraction cost and high extraction rate. Effect

Active Publication Date: 2011-09-14
方宁
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AI Technical Summary

Problems solved by technology

However, the traditional extraction process is relatively complicated, the extraction rate is low, the extraction cost is high, and it pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention can adopt enamel reaction kettle, vertical reaction kettle all can. In order to save cost, you can make your own cylindrical reaction kettle. Place and fix the reaction kettle on a platform of about 1.5m x 1.5m. A speed-adjustable mixer with a power of 0.55-0.75kw is fixed on the top with a parallel bracket. The diameter of the rotating shaft is 30 cm. There is a paddle-shaped or leaf-shaped impeller below. , and a 1-inch steam inlet pipe is introduced, and the inlet pipe is about 1 foot away from the bottom of the kettle. The heating method is direct steam heating. The dryer is a tumble dryer, and the dryer and centrifuge can be purchased or self-made.

[0008] After the weathered coal, or lignite, or peat with humic acid content not less than 40% is selected and removed, it is crushed into 80-120 mesh coal powder, and then 100-120kg of coal powder is added to the reaction kettle, and at the same time 120-200kg of nitric acid solution with a con...

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Abstract

The invention provides a technology for producing high-purity humate by using coal. The technology comprises the following steps: selecting weathered coal or lignitic coal or peat with humate content of not less than 40%, removing impurities, crushing into coal powder with 80-120 meshes, and adding 100-120kg of the coal powder and 120-200kg of nitric acid solution with concentration of 1.0-2.0% to a reaction kettle at the same time; heating at the temperature of 70-80 DEG C, reacting for 1 hour while stirring, controlling the PH value at 1.5-4, and keeping standing for cooling; performing high-speed centrifugal separation at centrifugal speed of 3000RPM, adding 10-12kg of precipitate to another reaction kettle, adding water which is as 2-5 times as weight of the precipitate and 0.3-0.6kg of sodium carbonate, stirring, and reacting at the temperature of 80-95 DEG C for 90 minutes; keeping the temperature unchanged, adding 0.5-0.9kg of sodium hydroxide or potassium hydroxide, and continuously reacting for 1 hour; and taking reaction solution after cooling and precipitation, centrifuging to remove precipitate, and drying the obtained solution to obtain the finished product, wherein, the PH value of the solution is 9-11. The technology has the advantages of simple and practical process, no environmental pollution, low extraction cost, fast extraction speed and high extraction rate.

Description

technical field [0001] The invention belongs to a technique for producing high-purity humate by using coal. Background technique [0002] Humate is a natural organic polymer compound, a multifunctional chemical material with a wide range of industrial and agricultural uses, and is widely used in forestry, animal husbandry and medicine. As a multifunctional chemical material, it has a wide range of industrial and agricultural uses, and is also widely used in forestry, animal husbandry, and animal husbandry. However, the traditional extraction process is relatively complicated, the extraction rate is low, the extraction cost is high, and it pollutes the environment. Contents of the invention [0003] The purpose of the present invention is to provide a technology for producing high-purity humate with coal, which has the advantages of simple and practical process, no environmental pollution, low extraction cost, high speed and high extraction rate. [0004] For this reason,...

Claims

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Application Information

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IPC IPC(8): C08H99/00
Inventor 方宁
Owner 方宁
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