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Calcium superphosphate

A technology of superphosphate and sulfuric acid, applied in the direction of superphosphate, phosphate fertilizer, fertilization equipment, etc., can solve the problems of low concentration of P2O5, occupation of phosphate rock resources, and large use of mineral powder, so as to achieve high concentration of P2O5 and improve economical efficiency. efficiency, the effect of reducing production time

Inactive Publication Date: 2018-06-29
贵州越都化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of superphosphate by traditional technology still has the problems of high production cost and dust pollution. The existing technology uses phosphate rock powder as raw material, which has the problem of large amount of mineral powder used and occupies a large amount of phosphate rock resources.
Long production time, long curing time, low P2O5 concentration (%)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The calcium superphosphate comprises 20-40 parts of apatite, 10-20 parts of sulfuric acid, 5-15 parts of potassium chloride, 5-15 parts of ammonium chloride and 5-15 parts of activating loosening agent according to weight.

Embodiment 2

[0031] A calcium superphosphate consists of 20 kg of apatite, 10 kg of sulfuric acid, 5 kg of lime desiccant and 5 kg of activated loosening agent by weight.

Embodiment 3

[0033] A calcium superphosphate consists of 40 kg of apatite, 20 kg of sulfuric acid, 15 kg of lime desiccant and 15 kg of activated loosening agent by weight.

[0034] The calcium superphosphate, the model of the activation loosening agent is E-30 or E-35.

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PUM

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Abstract

The invention discloses calcium superphosphate which comprises the following components in parts by weight: 20-40 parts of apatite, 10-20 parts of sulfuric acid, 5-15 parts of potassium chloride, 5-15parts of ammonium chloride and 5-15 parts of an activating loosening agent. The activating loosening agent used in the calcium superphosphate has a function of accelerating the aging speed, the production time can be greatly shortened, and the calcium superphosphate is simple in process, easy to use, wide in raw material source, low in price, applicable to industrial large-scale production, widein market prospect and good in social and economic benefit.

Description

technical field [0001] The invention relates to a calcium superphosphate and belongs to the technical field of chemical fertilizer production. Background technique [0002] Superphosphate, also referred to as heavy calcium, is gray-white or dark brown in appearance. It is a high-concentration phosphate fertilizer, which belongs to water-soluble phosphate fertilizer, that is, the phosphorus contained in the fertilizer is easily soluble in water and can be directly absorbed and utilized by plants. Its available phosphorus content is higher than that of ordinary calcium superphosphate. It is a slightly acidic quick-acting phosphate fertilizer and can be used as a compound fertilizer raw material. It is the single water-soluble phosphate fertilizer with the highest concentration widely used at present. Heavy calcium fertilizer has high efficiency, strong adaptability, and the effect of improving alkaline soil. It is widely used in various food crops and economic crops such as ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05B1/02
CPCC05B1/02
Inventor 李昂李勇吴桂清徐光兴刘福祥周德兵邓正军项代福宋运良
Owner 贵州越都化工有限公司
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