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Method and device for clean and environmentally-friendly production of methionine complex metal salt

A clean and environmentally friendly technology for complexing metals, applied in chemical instruments and methods, preparation of organic compounds, preparation of sulfides, etc., can solve problems such as low complexation rate, achieve high product stability, high product purity, and yield high effect

Inactive Publication Date: 2019-08-20
LUFENG TIANBAO PHOSPHORUS CHEM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a novel clean and environmentally friendly production method and device for methionine complex metal salts. This method can save equipment investment, avoid dust pollution, and has a simple operation process. The method produces a large amount of waste water and the problem of by-product inorganic salts, and solves the problem of low complexation rate of traditional production methods

Method used

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  • Method and device for clean and environmentally-friendly production of methionine complex metal salt
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  • Method and device for clean and environmentally-friendly production of methionine complex metal salt

Examples

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Effect test

Embodiment 1

[0048] Embodiment 1 D, preparation of L-methionine complexed cobalt sulfate

[0049] Complexation reaction of D,L-methionine and cobalt sulfate: Add 301.01kg of 99wt% D,L-methionine crystals (2000 moles) and 602.02kg of deionized water into a 2000L reactor, then heat up to 85°C, While stirring, add 313.13kg (2000 moles) of anhydrous cobalt sulfate with a content of 99wt%, stir to dissolve completely, immediately raise the temperature to 95°C, and keep it warm for 1.0 hour to obtain D,L-methionine complexed cobalt

[0050] Sulfate aqueous solution, the concentration of D,L-methionine complexed cobalt sulfate in the aqueous solution is 49.86wt%.

[0051]D, L-methionine complex cobalt sulfate spray drying treatment: the D, L-methionine complex cobalt sulfate aqueous solution obtained above is concentrated in a complex reaction kettle, and the reaction mixture is concentrated to a concentration of 80%. The concentrated solution has good fluidity at 90°C, and then it is spray-drie...

Embodiment 2

[0052] Example 2 Preparation of L-methionine complexed cobalt acetate

[0053] Complexation reaction of L-methionine and cobalt acetate: 301.01 kg of 99 wt% L-methionine crystals (2000 moles) and condensed water recovered from Example 1 and added deionized water totaled 750 kg in a 2000L reactor , then heat up to 85°C, add 503.19kg (2000 moles) of cobalt acetate tetrahydrate with a content of 99wt% under stirring, stir to dissolve completely, immediately heat up to 95°C, and keep warm for 1.0 hour to obtain L-methionine complexed cobalt acetate Aqueous salt solution, the concentration of L-methionine complexed cobalt acetate in the aqueous solution is 34.25wt%.

[0054] Spray drying treatment of L-methionine complexed cobalt acetate: Concentrate the L-methionine complexed cobalt acetate aqueous solution obtained above in a complex reaction kettle, and concentrate the reaction mixture to a concentration of 80%. The liquid has good fluidity at 90°C, and then it is spray-dried. ...

Embodiment 3

[0055] Example 3 Preparation of D, L-methionine complex chromium (Ⅲ) chloride salt

[0056] Complexation reaction of D,L-methionine and chromium trichloride: Add 301.01kg of D,L-methionine crystals (2000 moles) with a content of 99wt% to a 2000L reactor. 752.50kg of ionized water, then heated up to 85°C, added 319.92kg (2000 moles) of anhydrous chromium trichloride with a content of 99wt% under stirring, stirred completely to dissolve, immediately raised the temperature to 95°C, and kept it warm for 1.5 hours to obtain D , L-methionine complex chromium (Ⅲ) chloride salt aqueous solution, the concentration of D, L-methionine complex chromium (Ⅲ) chloride salt is 39.62wt%.

[0057] D, L-methionine complex chromium (Ⅲ) chloride salt spray drying treatment: the D, L-methionine complex chromium (Ⅲ) chloride salt aqueous solution obtained above is concentrated under reduced pressure in a complex reaction kettle, Concentrate the reaction mixture to a concentration of 80wt%. The mixt...

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Abstract

The invention relates to a method and a device for clean and environmentally-friendly production of a methionine complex metal salt. The method comprises the following steps: (1) adding methionine, water and a trace element metal salt into the synthesis device in proportion, heating the device to achieve complete dissolving, heating the obtained solution to 80-105 DEG C, and keeping the temperature for 0.5-2.0 h to obtain an aqueous solution of the methionine complex metal salt; and (2) directly drying the aqueous solution of the methionine complex metal salt, obtained in step (1), to a constant weight, and drying the obtained material to obtain the methionine complex metal salt product. The method and the device have the characteristics of no generation of three wastes, high metal ion complexing rate, avoiding of mass dust pollution due to no crushing or screening of the produced product, no adjustment of the pH value by any alkali in the complexing reaction process, simplicity in operation, high yield, low production cost, and suitableness for producing the methionine complex salts of various trace element metal salts.

Description

technical field [0001] The invention belongs to the field of preparation of organic complexes, in particular to a method and device for producing a clean and environment-friendly methionine complex metal salt. Background technique [0002] Trace elements are very important nutritional additives. The traditional trace element additives commonly used in feed and premix are mainly inorganic salts such as sulfates, chlorides, and oxides. They have many defects, such as: in animal nutrition Due to the complex chemical reaction in the digestion process, it is easily affected by phosphate, phytic acid and other ingredients in the feed, forming insoluble precipitates, which reduces the biological potency and affects the absorption and utilization; various trace element ions are antagonistic in the absorption process Function, affecting absorption and utilization; in feed processing, inorganic salts generally contain crystal water, which is easy to absorb moisture and agglomerate; in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C323/58C07C319/20C07C319/28
CPCC07C319/20C07C319/28C07C323/58
Inventor 周荣超廖常福彭启明
Owner LUFENG TIANBAO PHOSPHORUS CHEM CO LTD