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Potassium fulvate urea and preparation method thereof

A technology of potassium fulvic acid and urea, applied in the field of potassium fulvic acid urea and its preparation, can solve the problems affecting the growth and development status and yield of cotton, poor ability of root system to absorb nutrients, etc., so as to improve the utilization rate of each element and promote absorption. The effect of using and improving soil

Inactive Publication Date: 2017-06-20
新疆心连心能源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the poor ability of the seedling and root system to absorb nutrients, it will affect the growth and development and yield of cotton.

Method used

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  • Potassium fulvate urea and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] After first mixing 2 parts by weight of sodium alginate and 98 parts by weight of water, stir for the first time at a speed of 1300r / min, and stir for 45 minutes to form the first mixture; then mix 0.5 parts by weight of lanthanum, 0.3 parts by weight of yellow Potassium humate is added to the first mixture and stirred for the second time at a rotating speed of 1500r / min, and stirred for 45min to form the second mixture; after adding 200 parts by weight of urea (comprising 90wt% of urine), at a rotating speed of 1800r / min Stirring was carried out for the third time, and the third mixture was obtained by stirring for 45 min. The third mixture is transported to the urine pump, enters the evaporation system, evaporates excess water, and then vacuum granulates with a granulation tower at 130°C and normal pressure to obtain yellow granules with a water content of 0.4% and a diameter of 1.1 mm. Potassium humate urea.

Embodiment 2

[0033] First mix 11.3 parts by weight of sodium alginate and 188.7 parts by weight of water, then stir for the first time at a rotating speed of 1400r / min, and stir for 60 minutes to form the first mixture; then mix 1.2 parts by weight of cerium, 0.4 parts by weight of yellow Potassium humate is added to the first mixture and stirred for the second time at a rotating speed of 1800r / min, and stirred for 60min to form the second mixture; after adding 220 parts by weight of urea (including 95wt% urine), at a rotating speed of 2000r / min Stir for the third time and stir for 60 min to obtain the third mixture. The third mixture is sent to the urine pump, enters the evaporation system, evaporates excess water, and then uses a granulation tower to carry out vacuum granulation under 140°C and normal pressure conditions to obtain yellowish granules with a water content of 1% and a diameter of 3.2mm. Potassium humate urea.

Embodiment 3

[0035] After mixing 4 parts by weight of sodium alginate and 196 parts by weight of water, stir for the first time at a speed of 1350r / min, and stir for 55 minutes to form the first mixture; then mix 0.8 parts by weight of praseodymium, 0.3 parts by weight of yellow Potassium humate is added to the first mixture and stirred for the second time at a rotating speed of 1700r / min, and stirred for 55min to form the second mixture; after adding 210 parts by weight of urea (comprising 92wt% of urine), at a rotating speed of 1900r / min Stirring was carried out for the third time, and the third mixture was obtained by stirring for 55 min. The third mixture is sent to the urine pump, enters the evaporation system, evaporates excess water, and then uses a granulation tower to carry out vacuum granulation under 135°C and normal pressure conditions to obtain yellow granules with a water content of 0.8% and a diameter of 2.2mm. Potassium humate urea.

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Abstract

The invention relates to potassium fulvate urea and a preparation method thereof, belonging to the technical field of fertilizers. The method comprises the following steps: mixing 100 to 200 parts by weight of sodium alginate with water, carrying out stirring for the first time so as to obtain a first mixture, then adding 0.5 to 1.2 parts by weight of a rare earth element and 0.3 to 0.4 part by weight of potassium fulvate into the first mixture, carrying out stirring for the second time so as to prepare a second mixture, then adding 200 to 220 parts by weight of urea, and carrying out stirring for the third time at a rotating speed of 1800 to 2000 r / min so as to prepare a third mixture; and conveying the third mixture to a urea solution pump, allowing the third mixture to enter an evaporation system, and carrying out vacuum granulation with a granulation tower so as to prepare the potassium fulvate urea with a water content of 0.4% to 1%. The method is simple and convenient, and has low cost. The potassium fulvate urea prepared by using the method provided by the invention is applicable to the growth of cotton in an early stage, can well promote germination and rooting of seeds, and promotes crops to absorb various nutrient elements.

Description

technical field [0001] The invention relates to the field of fertilizers, and in particular to potassium fulvate urea and a preparation method thereof. Background technique [0002] Agricultural chemists from all over the world have conducted a lot of research and developed various slow-release fertilizer manufacturing methods to improve the utilization rate of urea nitrogen. For example, the organic coating method of coating urea with sulfur, resin, plastic, asphalt, phosphate, etc.; the formaldehyde condensation method of urea and formaldehyde undergoing urea-formaldehyde reaction condensation into macromolecular insoluble substances such as isobutylidene diurea; and Various measures such as adding urease activity inhibitors or nitrification activity inhibitors to the urea melt. [0003] The above methods can increase the utilization rate of urea nitrogen to a certain extent, and reduce the volatilization of nitrogen correspondingly. However, most of the production proce...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05C9/00C05G3/80C05G5/12C05D9/02C05F3/00C05F11/00
Inventor 郑继亮李小鹏林世卿刘昊选邝作玉李三省艾尔肯·艾买提尼亚孜
Owner 新疆心连心能源化工有限公司
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