Unlock instant, AI-driven research and patent intelligence for your innovation.

Making method of calcium superphosphate

A production method and technology of general calcium, applied in the direction of superphosphate, phosphate fertilizer, fertilization device, etc., can solve the problems of loss of phosphorus and calcium elements, poor crop growth, loss of phosphorus and calcium elements, etc., to reduce phosphorus and calcium elements. The effect of loss, reduction of farmer costs, and more absorption

Inactive Publication Date: 2016-01-27
YUNNAN LUFENG QINPAN PHOSPHOR CHEM CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common calcium is mostly the first choice for farmers to supplement phosphorus and calcium for crops, but general calcium is easily soluble in water and is easily washed away by rain, resulting in a large loss of phosphorus and calcium, resulting in waste of cost and poor crop growth
Moreover, the land is mostly alkaline, which will react with common calcium, resulting in the loss of phosphorus and calcium elements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] A kind of preparation method of general calcium is carried out according to the following steps:

[0020] (1) Grinding powder: grind phosphate rock into powder;

[0021] (2) Slurry preparation: Pour excess sulfuric acid solution into the phosphate rock powder, and form a slurry after sufficient stirring and mixing;

[0022] (3) Mixing: Add sulfur powder with a sulfur content of 99% and sodium lignosulfonate into the slurry and mix evenly;

[0023] (4) Maturing and turning: place it in a normal temperature environment to dry and solidify naturally, turn the slurry once every ten days, and turn it twice;

[0024] (5) Crushing: After the slurry is solidified, the material blocks are broken and dispersed by a crusher.

[0025] In the step (1), the phosphate rock is superphosphate.

example 2

[0027] A kind of preparation method of general calcium is carried out according to the following steps:

[0028] (1) Grinding powder: grind phosphate rock into powder;

[0029] (2) Slurry preparation: Pour excess sulfuric acid solution into the phosphate rock powder, and form a slurry after sufficient stirring and mixing;

[0030] (3) Mixing: add elemental magnesium and sodium lignosulfonate to the slurry and mix evenly;

[0031] (4) Maturing and turning: place it in a normal temperature environment to dry and solidify naturally, turn the slurry once every ten days, and turn it 3 times;

[0032] (5) Crushing: After the slurry is solidified, the material blocks are broken and dispersed by a crusher.

[0033] The phosphate rock is calcium superphosphate.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Belonging to the field of chemical production technologies, the invention in particular relates to a making method of calcium superphosphate. The method includes mineral powder grinding, slurry making, mixing, curing and pile turning, and breaking five steps. The calcium superphosphate produced by the method provided by the invention has water solubility lower than ordinary calcium superphosphate, has small fertilizer loss caused by rainwater wash in rainy season, can ensure crop more absorption, and can achieve better effect. Sulfur powder can reduce the PH value of land, reduces the loss of phosphorus and calcium elements, reduces the amount of fertilization amount, and lowers the farmer cost.

Description

technical field [0001] The invention belongs to the field of chemical production technology, and in particular relates to a method for preparing common calcium. Background technique [0002] In many places, crops need to be fertilized during the rainy season. Common calcium is mostly the first choice for farmers to supplement phosphorus and calcium for crops, but general calcium is easily soluble in water and is easily washed away by rain, resulting in the loss of a large amount of phosphorus and calcium, resulting in waste of cost and poor crop growth. Moreover, the land is mostly alkaline, which will react with common calcium, resulting in the loss of phosphorus and calcium. Contents of the invention [0003] In order to solve the problems existing in the above technologies, the present invention provides a method for making general calcium, which can minimize the loss of phosphorus and calcium elements in general calcium, allow crops to fully absorb it, and reduce farm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C05B1/02
Inventor 杨志祥
Owner YUNNAN LUFENG QINPAN PHOSPHOR CHEM CO LTD