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Method for preparing amino acid liquid fertilizer by hydrolyzing animal proteins with multiple acids and application of amino acid liquid fertilizer

A technology for animal protein and liquid fertilizer, applied in the application, fertilizer mixture, fertilization device and other directions, can solve the problem of low content of amino acid components in fertilizer, and achieve the effect of reducing production cost, reducing nitrogen loss, and good coordination effect

Active Publication Date: 2014-07-30
湖南杜高生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, only one or two kinds of acids are used to hydrolyze animal protein, and the content of amino acid components in the obtained fertilizer is low

Method used

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  • Method for preparing amino acid liquid fertilizer by hydrolyzing animal proteins with multiple acids and application of amino acid liquid fertilizer
  • Method for preparing amino acid liquid fertilizer by hydrolyzing animal proteins with multiple acids and application of amino acid liquid fertilizer
  • Method for preparing amino acid liquid fertilizer by hydrolyzing animal proteins with multiple acids and application of amino acid liquid fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] For the specific steps of this embodiment, see figure 1 .

[0036] (1) Pretreatment of animal protein: After cleaning up impurities such as plastic, wood and metal in the discarded pig hair, expose it to the sun for 2 days, and then dry it with a drying blower at 60°C for 6 hours. The hair pulverizer is prepared into pig hair powder, which can be used as raw material for the preparation of amino acid liquid fertilizer

[0037] (2) Acid hydrolysis: according to the content of each component specified in the following table 1, add the mass percent concentration of 25% hydrochloric acid, 30% phosphoric acid, and 20% sulfuric acid into the reaction kettle and step (1) in sequence according to the mass ratio Mix pig hair powder, the mass ratio of pig hair powder to hydrochloric acid, phosphoric acid and sulfuric acid is 1:2; heat to 80°C, control the temperature to 110°C after 2h, and acidolysis time is 7h to obtain acidolysis solution

[0038] (3) Neutralization: After t...

Embodiment 2

[0042] Repeat the method of Example 1 according to the content of each component specified in the following table 1, the obtained amino acid liquid fertilizer is as follows figure 2 Shown in VIII.

Embodiment 3

[0044] Repeat the method of Example 1 according to the content of each component specified in the following table 1, the obtained amino acid liquid fertilizer is as follows figure 2 Shown in IX.

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Abstract

The invention discloses a method for preparing an amino acid liquid fertilizer by hydrolyzing animal proteins with multiple acids and application of the amino acid liquid fertilizer. The method comprises the following steps: by using waste animal proteins (hair, skin, horns and the like) as raw materials, sequentially adding hydrochloric acid, phosphoric acid and sulfuric acid solutions with proper mass percentage into the animal proteins according to proper mass ratio; and after hydrolyzing the animal proteins, adding cheap alkaline matters (ammonia water, lime and magnesium oxide) for neutralization, filtering the neutralized acidolysis solution, and concentrating to obtain the amino acid liquid fertilizer. The liquid fertilizer contains 17 amino acids, and has high contents of N, P, Ca and Mg. The fertilizer efficiency test indicates that when being applied onto foliage, the amino acid liquid fertilizer can obviously increase the yield of pakchoi and obviously enhance the quality of vegetables, thereby having good economic benefits. The invention has the advantages of simple preparation technique and low production cost, is easy to implement, and is a high-quality fertilizer for producing no-pollution agricultural products.

Description

technical field [0001] The invention belongs to the field of fertilizer industry, and in particular relates to a method for preparing amino acid liquid fertilizer by hydrolyzing animal protein with polyacid. Background technique [0002] With the rapid development of the economy and the improvement of people's living standards, the public has put forward higher requirements for the food, food, production safety and quality they depend on for survival. The production of pollution-free, green and organic food to meet the market demand is an urgent problem in agricultural production, and the demand for new fertilizers related to its production is also increasing. At present, all kinds of functional polypeptides produced by directional synthesis of amino acids and directly by enzymatic hydrolysis of proteins have been widely used in the medical and nutritional circles at home and abroad. And this kind of amino acid produced is a single component, and the production of liquid fe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 沈宏傅友强申守营
Owner 湖南杜高生物科技有限公司
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