Water-soluble calcareous fertilizer and preparation method thereof

A technology of water-soluble calcium and ammonia water, applied in the direction of calcium fertilizer, nitrogen fertilizer, inorganic fertilizer, etc., can solve the problems of poor absorption performance, unable to fully satisfy calcium supplementation and other problems, so as to improve mutual absorption, prevent and treat physiological diseases , Improve the effect of calcium fertilizer fertilization

Inactive Publication Date: 2008-09-24
内蒙古汇祥生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, traditional calcium fertilizer products have poor absorption performance and cannot fully meet the needs of calcium supplementation

Method used

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  • Water-soluble calcareous fertilizer and preparation method thereof
  • Water-soluble calcareous fertilizer and preparation method thereof
  • Water-soluble calcareous fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:

[0092] 1). Measure 750 parts of nitric acid, 350 parts of calcium oxide, and 250 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;

[0093] 2). Put 750 parts of nitric acid and 350 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 1.5 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;

[0094] 3). Put 250 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor, which is ready for use;

[0095] B, the preparation method and steps of auxiliary agent are:

[0096] 1). Me...

Embodiment 2

[0101] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:

[0102] 1). Measure 550 parts of nitric acid, 350 parts of calcium oxide, and 150 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;

[0103] 2). Put 550 parts of nitric acid and 350 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 2 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;

[0104] 3). Place 150 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor. ;

[0105] B, the preparation method and steps of auxiliary agent are:

[0106] 1). Measure 10 parts of bor...

Embodiment 3

[0111] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:

[0112] 1). Measure 500 parts of nitric acid, 300 parts of calcium oxide, and 150 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;

[0113] 2). Put 500 parts of nitric acid and 300 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 1.5 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;

[0114] 3). Place 150 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor. ;

[0115] B, the preparation method and steps of auxiliary agent are:

[0116] 1). Measure 30 parts of b...

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Abstract

The present invention relates to a water-soluble calcium fertilizer and a preparation method thereof. The water-soluble calcium fertilizer is made of mother liquor of calcium ammonium nitrate and an auxiliary agent; wherein, the mother liquor of calcium ammonium nitrate consists of nitric acid, calcium oxide and ammonia; the auxiliary agent consists of boric acid, zinc sulfate, ferric oxide, chelating agent of ethylenediaminetetraacetic acid, and sodium molybdate. In the preparation method, the mother liquor of calcium ammonium nitrate and the auxiliary agent are prepared at first; then the mother liquor of calcium ammonium nitrate is heated in a reactor; the auxiliary agent is put in the reactor and mixed with the mother liquor; the mixture is discharged into a material trough for natural cooling; and the water-soluble calcium fertilizer can be prepared after the mixture is cooled, granulated by a pelletizer, dried, screened and packaged.

Description

technical field [0001] The invention relates to a water-soluble calcium fertilizer, in particular to a water-soluble calcium fertilizer and a preparation method thereof. This fertilizer can not only provide a variety of nutrients for crop growth, but also prevent and treat physiological diseases of crops caused by calcium deficiency. Background technique [0002] Calcium is an indispensable nutrient element for the normal growth and development of crops. Rational use of calcium fertilizer, especially in the critical period of calcium-loving crops such as apples, tomatoes, and Chinese cabbage, can effectively prevent and treat crops caused by calcium deficiency. Physiological diseases lay the foundation for high yield and high quality. [0003] Calcium can be used as a bridge between the phosphate radical of phospholipid and the carboxyl group of protein in the biological membrane, thus maintaining the stability of the membrane structure. Calcium is an element that forms th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05C1/00C05C3/00C05D3/00
Inventor 陈清肖艳柳建吕社东
Owner 内蒙古汇祥生物科技有限公司
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