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Long efficient, water retaining rare earth compound mixed fertilizer, and producing technique

A compound fertilizer and rare earth technology, applied in urea compound fertilizer, nitrogen fertilizer, potash fertilizer and other directions, can solve the problems of increasing the fertilization process and management link, difficult to scale production, etc., achieving obvious environmental protection effect, promoting early maturity, and improving survival rate. Effect

Inactive Publication Date: 2005-01-12
马维忠
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few new products for the assembly and integration of chemical fertilizers and water-retaining agents. A large number of water-retaining agents are only tested in a single technology, and it is difficult to form large-scale production and operation. It also increases the fertilization process and management links in the actual production and application of farmers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 2kg of rare earth oxide (REXOY) and 558kg of superphosphate into 560kg of rare earth superphosphate, add 50kg of ammonium bicarbonate to the rare earth superphosphate, after the ammonification of the rare earth superphosphate, dry to remove water, break it and raise it to Storage hopper; after adding 15kg stabilizer dicyandiamide ammonium in 220kg urea and mixing, then mix with 120kg (K 2 Potassium Chloride with O index value ≥ 52%) is mixed and crushed and added to the mixer, and the calcium superphosphate after the above-mentioned ammoniation is also dropped into the mixer, and the above-mentioned fertilizer is continuously supplied to the disc granulator through the feeder after being stirred evenly in the mixer. Granules, at the same time of granulation, add fully refined 4kg of iron, zinc, magnesium, boron trace elements, 30kg of water retaining agent, 3kg of clay, 3kg of simple powder that is silicon calcein. The granulated material is dried by a rotary dryer,...

Embodiment 2

[0023] Mix 2kg of rare earth oxide (REXOY) and 568kg of superphosphate into 570kg of rare earth superphosphate, add 55kg of ammonium bicarbonate to the rare earth superphosphate, after the ammonification of the rare earth superphosphate, dry to remove water, break it and raise it to Storage hopper; after adding 18kg stabilizer dicyandiamide ammonium in 230kg urea and mixing, then mix with 130kg (K 2 Potassium Chloride with O index value ≥ 52%) is mixed and crushed and added to the mixer, and the calcium superphosphate after the above-mentioned ammoniation is also dropped into the mixer, and the above-mentioned fertilizer is continuously supplied to the disc granulator through the feeder after being stirred evenly in the mixer. Granules, at the same time of granulation, add 4.5kg of trace elements composed of iron, zinc, magnesium and boron, 40kg of water retaining agent, 4.5kg of clay, 4kg of plain powder that is silicon calcium element. The granulated material is dried by a r...

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PUM

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Abstract

The invention relates to a kind of agricultural fertilizer, particularly to slow acting water-retaining rare earth compound fertilizer and prodn. technology. It composed of following raw materials (weight portion): rare earth superphosphate 560-570, amine carbide 50-55, nitrogen fertilizer 220-230, potassium fertilizer 120-130, stabilizing agent 15-18, water-retaining agent 30-40, trace element 4-4.5, adhesive agent 3-4.5, talcumpowder 3-4. Nitrogen fertilizer is uniform mixed with stabilizing agent then is send into stirring machine with potassium fertilizer and ammoniated superphosphate together, which is uniform stirred then to be prilled by adding trace element, water-retaining agent, adhesive agent and talcumpowder at same time, finally to be processed by drying, cooling and spraying prective film to obtain end product.

Description

technical field [0001] The invention relates to an agricultural fertilizer and its production process, in particular to a long-acting water-retaining rare earth compound fertilizer and its production process. Background technique [0002] Water-retaining agent, also known as high-efficiency water-retaining agent (also known as superabsorbent resin), is a polymer material that swells rapidly when exposed to water, and can absorb water hundreds or even thousands of times its own weight to become a semi-solid hydrogel. This hydrogel releases water slowly, and when squeezed, the water is difficult to separate out. It has super water retention capacity, because there are a large number of carboxylate and other hydrophilic groups in its molecules, and it is a low-crosslinked three-dimensional network structure. Increase, the water holding capacity is enhanced, the water it holds is mainly kept in the low suction range of 0.1-0.5Bar (the soil moisture within 15Bar suction can be w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05B1/02C05C3/00C05C9/00C05D1/02C05G1/00C05G3/00C05G5/00
Inventor 马维忠
Owner 马维忠
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