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
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[0007] The present invention can use either an enamel reaction kettle or a vertical reaction kettle. In order to save costs, a cylindrical reaction kettle can be made by yourself, and the reaction kettle can be placed and fixed on a platform of about 1.5 meters x 1.5 meters. A speed-adjustable mixer with a power of 0.55-0.75kw is fixed with a parallel bracket on the top. The diameter of the rotating shaft is 30 cm, and 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 made.
[0008] The weathered coal, lignite, or peat with a humic acid content of not less than 40% is selected and removed, and then pulverized into 80-120 mesh coal powder, and then 100-120 kg of coal powder is added to the 120~200kg of nitric acid solution of 1.0~2.0%...
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