Synergistic agent for nitrogen fertilizer

A synergist, nitrogen fertilizer technology, applied in the direction of application, fertilization device, fertilizer mixture, etc., can solve the problems of nitrogen loss, water pollution, increasing soil scientists, etc., to achieve the effect of improving utilization rate, inhibiting activity, and avoiding loss

Inactive Publication Date: 2010-11-17
JIANGSU LONGCHANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In 2003, the consumption of chemical fertilizers in my country has reached 39 million tons. The application of large amounts of chemical fertilizers has brought about a substantial increase in crop production. At the same time, the problem of nitrogen loss has also increased the worries of soil scientists. The main reason for the large loss of ...

Method used

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  • Synergistic agent for nitrogen fertilizer
  • Synergistic agent for nitrogen fertilizer
  • Synergistic agent for nitrogen fertilizer

Examples

Experimental program
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Effect test

Embodiment

[0016] The solid waste chlorinated benzene tar is treated by a rectification tower to purify the crude p-dichlorobenzene, and then the crude p-dichlorobenzene is purified to more than 97% by a crystallizer.

[0017] Put 3000kg of 97% p-dichlorobenzene into a 3000L enamel reaction kettle, slowly add 2500kg of sulfuric acid, start stirring, heat with steam, and slowly raise the temperature to 70°C. After the p-dichlorobenzene is completely melted, cool down to 55°C. Start to add nitric acid dropwise from the nitric acid high level tank, control the reaction temperature between 58~62°C, add 1350kg of nitric acid within 10 hours, then raise the temperature to 68~72°C, keep it warm for 4 hours, after the reaction is completed, let stand to remove the waste acid, Wash with neutral water, dry and break the package.

[0018] product specification

[0019] (1) Appearance: light yellow crystal

[0020] (2) Melting point: 58°C

[0021] (3) Content ≥ 99.5%

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Abstract

The invention discloses a synergistic agent for a nitrogen fertilizer. The synergistic agent is characterized in that the synergistic agent is 2,5-dichloronitrobenzene, and the 2,5-dichloronitrobenzene content of the nitrogen fertilizer is 3 to 5 percent of the nitrogen content of the nitrogen fertilizer. The 2,5-dichloronitrobenzene is a product produced by optionally filtering industrial byproducts, solid waste, Chlorobenzene and tar. Tested in fields of related counties, the synergistic agent for the nitrogen fertilizer is proved to have functions of fixing the nitrogen and maintaining the fertilizer, effectively inhibiting the activities of nitrobacteria and denitrifying bacteria in soil, avoiding the loss of the nitrogen, and improving the utilization ratio of the nitrogen.

Description

technical field [0001] The invention relates to a nitrogen fertilizer synergist, in particular a benzene substance mixed into the nitrogen fertilizer, which reduces the loss of nitrogen during the use of the nitrogen fertilizer and effectively protects the soil. Background technique [0002] In 2003, the consumption of chemical fertilizers in my country has reached 39 million tons. The application of large amounts of chemical fertilizers has brought about a substantial increase in crop production. At the same time, the problem of nitrogen loss has also increased the worries of soil scientists. The main reason for the large loss of nitrogen is the nutrients in chemical fertilizer products. The release rate is too fast for crops to absorb it in time, and the dissolution rate of fertilizer cannot be controlled artificially. At the same time, due to the low quality and unreasonable use of chemical fertilizer products, the water bodies in our country have been polluted to varying ...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/90
Inventor 许小亮张剑宇吴春江
Owner JIANGSU LONGCHANG CHEM
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