A kind of preparation method of water-soluble organic nitrogen fertilizer
A water-soluble and organic technology, applied in nitrogen fertilizer and other directions, can solve the problem of low utilization rate of urea, and achieve the effect of enhancing photosynthesis, promoting growth and development, and improving seedling emergence rate.
Inactive Publication Date: 2011-12-14
新疆农神有机农林科技发展有限公司
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(3) No. CN200810049643.X patent, "an ecological nitrogen fertilizer and its preparation method" provided by Anhui Wensheng Fertilizer Co., Ltd., solves the problem of low urea utilization rate, adopts multi-element integration technology, and uses crustacean Excellent film-forming properties and excellent viscosity as a wrapping agent
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[0018] Fertilizer preparation:
[0019] (1) The weathered coal or lignite or peat raw materials are pulverized to 120 mesh, selected by cyclone, washed and precipitated with 1:1 water, stirred for 50 minutes under normal pressure, and the organic matter is separated; the organic matter is determined to be more than 80%, which is ready to use in production;
[0020] (2) Raw materials are prepared in parts by weight: take 60 parts of organic matter, 5 parts of sodium metabisulfite, 5 parts of sodium sulfite, 5 parts of nitric acid (net content), 30 parts of liquid ammonia (calculated as pure liquid ammonia); mix organic matter and water 1:1 Put the ratio into an anti-corrosion reactor and stir, add sodium nitrite and sodium pyrosulfite in sequence, and react for 50 minutes at 145°C and a pressure of 0.4 MPa to obtain the sulfonated reactant; cool the sulfonated reactant to 80°C, Add nitric acid for nitration reaction, the time is 30 minutes; pile up the nitrated material and dr...
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Abstract
The invention provides a method for preparing a water-soluble organic nitrogenous fertilizer. The water-soluble organic nitrogenous fertilizer comprises the following raw materials in part by weight: 55 to 65 parts of organic matter, 4 to 6 parts of sodium sulfite, 4.5 to 7 parts of sodium pyrosulfite, 25 to 35 parts of liquid ammonia, 4.5 to 5.5 parts of nitric acid and water. The method comprises the following steps of: adding the organic matter and the water in the same amount as that of the organic matter into a reactor, stirring, and adding the sodium nitrite and the sodium pyrosulfite to perform sulfonation reaction at the temperature of between 140 and 145 DEG C under the pressure of 0.4 MPa for 50 to 60 minutes; cooling a sulfonating reactant to the temperature of between 70 and 80 DEG C, adding nitric acid to perform nitration reaction at normal temperature and normal pressure for 28 to 32 minutes, discharging, airing, drying, adding into a kneading machine, and mixing the materials and the water in a ratio of 1:0.5; and continuing to add the liquid ammonia to perform neutralization reaction, controlling the pH value to 6.0 to 8.0 to obtain a pasty solid, drying at the temperature of between 70 and 150 DEG C for 10 to 15 minutes, crushing the materials, and treating by a granulator to obtain a finished product. A method for preparing the organic matter comprises the following steps of: crushing weathered pulverized coal until the powder is 120 to 130 meshes, winnowing by a cyclone, precipitating by using the water, stirring under the normal pressure for 45 to 55 minutes, and separating to obtain the organic matter, wherein a ratio of the coal to the water is 1:1.
Description
technical field [0001] The invention relates to fertilization technology integrating water and fertilizer, soil testing formula, scientific and reasonable, and the preparation of the water-soluble organic nitrogen fertilizer meets the requirement of water-saving irrigation. Background technique [0002] At present, the production of ecological nitrogen fertilizer, organic fluid fertilizer, water-soluble flushing fertilizer and water-soluble organic fertilizer is very popular in China. In particular, the country implements the strategy of unified soil testing formula and water and fertilizer integration, which makes the research in this field constantly strengthened and expanded. It has laid the foundation for the technical reserve for the increase of agricultural production in our country. [0003] Document retrieval disclosure: Patent No. CN200910130413.0, provided by the Agricultural New Technology Extension Service Center of Xinjiang Academy of Agricultural Reclamation ...
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IPC IPC(8): C05C11/00
Inventor 陈建江
Owner 新疆农神有机农林科技发展有限公司