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Calcium superphosphate fertilizer

A technology of calcium superphosphate and calcium dihydrogen phosphate, applied in the direction of calcium superphosphate, dicalcium phosphate fertilizer, ammonium orthophosphate fertilizer, etc. Avoid yellowing of leaves

Inactive Publication Date: 2017-02-15
YUNNAN LUFENG QINPAN PHOSPHOR CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of calcium superphosphate, solve the problem that the available phosphorus utilization rate of double calcium superphosphate is low in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A calcium superphosphate, comprising the following components by weight: 0.3 parts of sodium lignosulfonate, 5 parts of sulfur, 80 parts of calcium dihydrogen phosphate, 10 parts of calcium monohydrogen phosphate, 1 part of magnesium phosphate, 1 part of iron phosphate, 1 part aluminum phosphate, 1 part calcium sulfate, 4 parts silicon dioxide.

Embodiment 2

[0013] A calcium superphosphate, comprising the following components by weight: 0.5 parts of sodium lignosulfonate, 20 parts of sulfur, 90 parts of calcium dihydrogen phosphate, 20 parts of calcium monohydrogen phosphate, 3 parts of magnesium phosphate, 3 parts of iron phosphate, 3 parts of aluminum phosphate, 4 parts of calcium sulfate, 7 parts of silicon dioxide.

Embodiment 3

[0015] A calcium superphosphate, comprising the following components by weight: 0.4 parts of sodium lignosulfonate, 10 parts of sulfur, 85 parts of calcium dihydrogen phosphate, 15 parts of calcium monohydrogen phosphate, 2 parts of magnesium phosphate, 2 parts of iron phosphate, 2 parts of aluminum phosphate, 2 parts of calcium sulfate, 5 parts of silicon dioxide.

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PUM

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Abstract

The invention discloses a calcium superphosphate fertilizer. The calcium superphosphate fertilizer comprises, by weight, 0.3 to 0.5 part of sodium lignin sulfonate, 5 to 20 parts of sulphur, 80 to 90 parts of monocalcium phosphate, 10 to 20 parts of calcium monohydrogenphosphate, 1 to 3 parts of magnesium phosphate, 1 to 3 parts of iron phosphate, 1 to 3 parts of aluminium phosphate, 1 to 4 parts of calcium sulfate, and 4 to 7 parts of silicon dioxide. Compared with the conventional calcium superphosphate fertilizer, the calcium superphosphate fertilizer possesses following advantages: sodium lignin sulfonate is added, can be taken as a phosphorus dispersant, is capable of separating effective phosphorus element, and increasing the utilization ratio of the calcium superphosphate fertilizer; and at the same time, the ratio of sulphur is added, so that soli improvement and insect killing effects are achieved, and soil texture improvement is realized via fertilization.

Description

technical field [0001] The invention relates to the field of chemical fertilizer production, in particular to a calcium superphosphate. Background technique [0002] The main component of double superphosphate is calcium dihydrogen phosphate, and its effective phosphorus pentoxide is ≥ 40%. It is the phosphate fertilizer with the highest phosphorus content among single-effect phosphate fertilizers. Its appearance is also similar to that of ordinary calcium superphosphate. Off-white, mixed gray or gray-black, ungranulated fertilizer is powdery, with irregular small particles. The granulated fertilizer is usually round particles with a diameter of 2 to 4.75 mm. The existing heavy superphosphate is prone to the phenomenon that it cannot be effectively dispersed in the soil, resulting in a low utilization rate of phosphorus in the heavy superphosphate. At the same time, the existing heavy superphosphate only plays the role of phosphorus fertilizer and cannot improve the soil. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05B1/04C05G3/00C05G3/60C05G3/80C05B3/00C05B7/00C05B17/00C05D3/00C05D9/00
Inventor 陈斌杨志祥
Owner YUNNAN LUFENG QINPAN PHOSPHOR CHEM CO LTD
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