Preparation method of copper glycinate chelate

Abstract

The invention discloses a preparation method of copper glycinate chelate, is used for improving a drying method of the copper glycinate chelate and belongs to the technical field of trace element fertilizers. The preparation method of the copper glycinate chelate comprises the following steps: dissolving glycine in distilled water, adding a copper salt and a catalyst, reacting at 35-60 DEG C for 0.8-1.2 h, performing cooling crystallization, separating the crystal to obtain a crystal solid, removing impurities, sending the crystal solid into a rotary flash evaporation drying tower for drying,and carrying out microwave drying to finally obtain the copper glycinate chelate. According to the invention, the rotary flash evaporation drying tower and the microwave drying are combined, so that the copper glycinate chelate is dispersed and crushed and the uniformity and dispersity of product particles are improved; the method can also act inside copper glycinate chelate particles, quickly removes water and redundant crystal water which are not diffused inside, greatly shortens the drying time, improves the drying efficiency, enables the product to be low in moisture content, good in dispersity, loose and not prone to caking, and improves the product quality.

Description

technical field [0001] The invention discloses a preparation method of a copper glycine chelate, which belongs to the technical field of trace element fertilizers, and in particular relates to the preparation of a copper-containing chelate. Background technique [0002] During the growth process of plants, in order to maintain their metabolic process, they need to continuously absorb a certain amount of nutrients from the outside world to maintain the normal operation of the body. Nutrients can be divided into macronutrients and micronutrients according to the amount absorbed by plants. Micronutrient elements mainly include iron, manganese, boron, zinc, copper, molybdenum, chlorine, and nickel, among which copper is absorbed by plants in the form of cations, and is an indispensable trace element in the normal growth of plants. Its functions mainly include: (1 ) Participate in the electron transfer in the photosynthesis of plants to ensure that plants can smoothly convert lig...

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Problems solved by technology

[0004] In the production process of copper glycinate chelate, the prepared wet copper glycinate crystals need to be dried to remove moisture to meet the qualified standard. Usually, hot air drying technology is used for drying. However, due to the rapid evaporation of surface moisture of the material after heating, the material particles A hard shell will form on the surface, resulting in the narrowing of the moisture diffusion channel inside the particle, hindering the diffusion of internal moisture, and the moisture cannot migrate outward, which makes the drying effect not good, and also reduces the product quality, causing the copper glycinate crystals to be easily dried during storage. Aggregation, agglomeration and agglomeration occur, which is not conducive to long-term preservation, thereby affecting product quality; in order to solve the aforementioned problems, a preparation method of copper glycinate chelate is proposed

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