Solid methionine hydroxy analogue calcium salt compound with antibacterial and acidizing properties and preparation method of solid methionine hydroxy analogue calcium salt compound

A technology of methionine hydroxyl group and liquid methionine, which is applied in the field of solid methionine hydroxyl analog calcium salt complex and its preparation, and can solve the problems of complicated process, high viscosity, difficult control of reaction speed, pressure and temperature, etc.

Pending Publication Date: 2021-07-06
山西铁峰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also a series of problems: 1) It has a strong corrosive and pungent odor, and it is inconvenient to store, transport, and use, so an expensive special liquid feeding system must be used; 2) It is very viscous and flows at low temperature Poor in nature, it is not easy to mix evenly in the feed premix; 3) A large amount of heat is released when it meets water, which causes the feed to become rancid during storage and transportation; 4) It is very acidic, with a pH of about 1, and it is easy to mix with feed or premix The acid-base reaction of other ingredients in the feed will cause damage to the nutritional ingredients in the feed
The material produced by this method has high purity, but the process is more complicated due to the need for recrystallization and dehydration again
In actual production, these disclosed methods all have the problems of synthetic D, L-2-hydroxyl-4-methylthiobutyrate calcium has large viscosity, low density, poor fluency, etc., so it is difficult to fully mi

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  • Solid methionine hydroxy analogue calcium salt compound with antibacterial and acidizing properties and preparation method of solid methionine hydroxy analogue calcium salt compound
  • Solid methionine hydroxy analogue calcium salt compound with antibacterial and acidizing properties and preparation method of solid methionine hydroxy analogue calcium salt compound
  • Solid methionine hydroxy analogue calcium salt compound with antibacterial and acidizing properties and preparation method of solid methionine hydroxy analogue calcium salt compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 170.45kg of 88wt% methionine hydroxy analogs to a 1000L enamel reaction kettle, then add 329.55kg of water, dilute to an aqueous solution with a mass percentage of methionine hydroxy analogs of 30wt%, raise the temperature to 40°C, and stir for 30 minutes. Then add 19.80kg of calcium oxide powder with a mass percentage of 99.0wt% to the aqueous solution of methionine hydroxyl analogs, control the neutralization reaction temperature at about 80°C, and obtain a light yellow transparent liquid after adding the powdered calcium oxide. The mass percent content of methionine hydroxyl analogs in the medium is 28.86wt%, and the pH is 3.5.

[0041] The obtained transparent liquid was spray-dried, and the spray-drying temperature was 110°C. After spray-drying, 164.20 kg of a powdery white solid, methionine hydroxyl analog calcium salt complex, was obtained, and the bulk density of the complex was 0.78 g / cm, wherein the mass percentage of methionine hydroxyl analogue is 91.0w...

Embodiment 2

[0043] Add 170.45kg of 88wt% methionine hydroxy analogs to a 1000L enamel reaction kettle, then add 329.55kg of water, dilute to an aqueous solution with a mass percentage of methionine hydroxy analogs of 30wt%, raise the temperature to 40°C, and stir for 30 minutes. Then add 20.36kg of calcium oxide powder with a mass percentage of 99.0wt% to the aqueous solution of methionine hydroxyl analogs, control the neutralization reaction temperature at about 85°C, and obtain a light yellow transparent liquid after adding the powdered calcium oxide. The mass percent content of methionine hydroxyl analogs in the medium is 28.83wt%, and the pH is 3.7.

[0044] Spray-dry the obtained transparent liquid at a temperature of 110°C. After drying, 164.40 kg of a powdery white solid, methionine hydroxyl analog calcium salt complex, is obtained. The bulk density of this complex is 0.80 g / cm, and the methionine hydroxyl analog The mass percent composition of substance is 91.0wt%, the mass percen...

Embodiment 3

[0046] Add 170.45kg of 88wt% methionine hydroxy analogs to a 1000L enamel reaction kettle, then add 258.12kg of water, dilute to an aqueous solution with a mass percentage of methionine hydroxy analogs of 35wt%, raise the temperature to 40°C, and stir for 40 minutes. Then add 21.50kg of calcium oxide powder with a mass percentage of 99.0wt% to the aqueous solution of methionine hydroxyl analogs, control the neutralization reaction temperature at about 85°C, and obtain a light yellow transparent liquid after adding the powdered calcium oxide. Sampling analysis was carried out, and it was detected that the mass percentage of methionine hydroxyl analogs was 33.33 wt%, and the pH of the aqueous solution was 3.9.

[0047] Spray-dry the obtained transparent liquid at a temperature of 110° C. After spray-drying, 166.0 kg of a powdery white solid that is a calcium salt complex of methionine hydroxy analogs is obtained, wherein the mass percentage of methionine hydroxy analogs is 90.36 ...

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Abstract

The invention discloses a solid methionine hydroxy analogue calcium salt compound with antibacterial and acidizing properties and a preparation method of the solid methionine hydroxyl analogue calcium salt compound. The compound is prepared from calcium 2-hydroxy-4-(methylthio) butyrate, 2-hydroxy-4-(methylthio) butyric acid and water. A preparation method of the compound comprises the following steps: mixing an aqueous solution of liquid methionine with calcium oxide or calcium hydroxide to obtain a reaction solution, carrying out a neutralization reaction at 80-100 DEG C to obtain a liquid product, and carrying out spray drying on the liquid product to obtain the target product. According to the preparation method, the raw material ratio is scientific and reasonable, the final product powdery methionine hydroxyl analogue calcium salt compound powder is loose and good in dispersity, the yield reaches up to 99% or above, the methionine content is larger than or equal to 88 wt%, the problems that in the actual production process, methionine hydroxy analogue calcium salt is low in yield and purity, a filter cake is sticky and greasy, smoothness is poor and the like are solved, and the requirements of customers on powdery methionine and liquid methionine can both be met, so that the compound is worthy of popularization and application.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a solid methionine hydroxyl analog calcium salt complex with antibacterial and acidifying properties and a preparation method thereof. Background technique [0002] Liquid methionine, also known as methionine hydroxyl analogs, scientific name is DL-2-hydroxy-4-methylthiobutyric acid and its dimer, trimer mixture, in which the content of monomer, dimer and trimer are respectively 65%, 20%, 3%, dark brown viscous liquid, acidic. Liquid methionine is not actually an amino acid compound, but a short-chain fatty acid compound. Liquid methionine can be converted into L-methionine in animals, and L-methionine participates in animal protein synthesis and energy metabolism. The process is as follows: figure 1 shown. from figure 1 It can be seen that the biological value of liquid methionine in feeding is exactly the same as that of DL-methionine, so it can be us...

Claims

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Application Information

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IPC IPC(8): A23K20/142
CPCA23K20/142
Inventor 朱远斌樊保敏和振秀李万虎
Owner 山西铁峰化工有限公司
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