Preparation method of micro-nano mineral selenium fertilizer

A micro-nano, mineral technology, applied in the direction of fertilizer mixture, fertilization device, application, etc., can solve the problems of adverse impact on the environment and crops, unfavorable crop absorption and utilization, and low fertilizer utilization efficiency, so as to improve the fertilization effect and improve the quality of selenium , the effect of low production cost

Active Publication Date: 2014-07-23
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese Patent Publication No. 103497041A discloses an invention patent titled "Selenium-enriched fertilizer and its preparation method". Adverse effects on the environment and crops
[0005] The Chinese Patent Publication No. 102173955A discloses an invention patent titled "An Organic Selenium-enriched Biological Fertilizer and Its Preparation Method". Utilization, fertilizer use efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Coarsely crush the selenium ore soil in Enshi, Hubei with an ASJ-E series jaw crusher into coarse selenium ore powder with 100% less than 180 microns;

[0032] 2) Add the coarse selenium ore powder to the ALX series continuous horizontal ball mill for grinding, and finally crush it into fine selenium ore powder with a particle size of 90% less than 30 microns;

[0033] 3) Mix the fine selenium ore powder prepared in step 2) with humic acid and zeolite with water, and the ratio of each component is 75% of fine selenium ore powder, 20% of humic acid, and 5% of zeolite, and the mass ratio of water to the mixture is 1:1 ;

[0034] 4) The mixture obtained in step 3) is added to the LM-500 wet mixing mill for wet treatment. The mixing mill uses small-sized zirconia balls with a particle size of 3 mm, a speed of 250 rpm, and a treatment time of 3 hours;

[0035] 5) The product obtained in step 4) is concentrated as a material, and then dried and dispersed by a ZL50-16-I dr...

Embodiment 2

[0037] 1) Coarsely pulverize the volcanic slag with a 250-type universal mill into coarse selenium ore powder with 100% less than 180 microns;

[0038] 2) Add the coarse selenium ore powder into the ZDM-1 vibrating mill for grinding, and finely crush it into fine selenium ore powder with a particle size of 90% less than 30 microns;

[0039] 3) Mix the fine selenium ore powder prepared in step 2) with humic acid and lignin, and add water, and the proportion of each component is 85% of fine selenium ore powder, 12% of humic acid, and 3% of zeolite, and the mass ratio of water to the mixture is 1 :1;

[0040] 4) Put the mixture obtained in step 3) into the LM-500 wet mixing mill for wet treatment. The mixing mill uses small-sized zirconia balls with a particle size of 2 mm, a speed of 200 rpm, and a treatment time of 5 hours;

[0041] 5) Concentrate the material obtained in step 4), dry and disperse it with a ZL50-16-I dryer to obtain the final product.

Embodiment 3

[0043] 1) Coarsely crush the selenium ore soil and volcanic slag in Enshi, Hubei into coarse selenium ore powder with 100% less than 180 microns by ASJ-E series jaw crusher;

[0044] 2) Put the coarse selenium ore powder into the ALX series continuous horizontal ball mill for grinding, and finely crush it into fine selenium ore powder with a particle size of 90% less than 30 microns;

[0045] 3) Mix the fine selenium ore powder prepared in step 2) with humic acid and zeolite, and add water, wherein the proportion of each component is 75% of fine selenium ore powder, 20% of humic acid, and 5% of zeolite, and the mass ratio of water to the mixture 1:1;

[0046] 4) Put the mixture obtained in step 3) into the LM-500 wet mixing mill for wet treatment. The mixing mill uses small-sized zirconia balls with a particle size of 3 mm, a speed of 250 rpm, and a treatment time of 3 hours;

[0047] 5) Concentrate the material obtained in step 4), dry and disperse it with a ZL50-16-I dryer ...

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Abstract

The invention relates to a preparation method of a micro-nano mineral selenium fertilizer. The preparation method is characterized by comprising the following steps: (1) coarsely grinding raw material selenium-enriched mineral into coarse selenium mineral powder by a first grinder; (2) then finely grinding the coarse selenium mineral powder into fine selenium mineral powder by a second grinder; (3) adding humic acid and additives into the fine selenium mineral powder, and mixing by using water; (4) adding a mixture obtained in the step (3) into a stirring mill for wet processing for 0.2-5 hours; (5) concentrating a product obtained in the step (4), and then drying and scattering by using a dryer. The micro-nano mineral selenium fertilizer prepared by the preparation method is natural in components and pollution-free, and can improve the selenium content in soil, promote the crop growth, and improve the selenium content in the product.

Description

technical field [0001] The invention relates to a preparation method of fertilizer, in particular to a preparation method of micro-nano mineral selenium fertilizer, which is mainly suitable for fertilizing crops. Background technique [0002] Selenium is one of the essential trace elements for human body. Selenium is distributed throughout the tissues, organs and body fluids of the human body, and is very important for improving human immunity and preventing cancer. More than 40 kinds of diseases that threaten human health and life are related to human selenium deficiency, such as cancer, cardiovascular disease, liver disease, cataract, pancreatic disease, diabetes, reproductive system diseases, etc. The selenium content of the human body is 6-20 micrograms. Adults can take more than 25 micrograms of selenium in their daily food for health care; selenium-deficient adults can improve their immunity by supplementing 50-75 micrograms of selenium in their daily food. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 张均华朱练峰赵夫涛禹盛苗金千瑜
Owner CHINA NAT RICE RES INST
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