Method for refining monosodium glutamate by adopting macroporous highly basic anion resin

An anion resin and monosodium glutamate technology, applied in the field of monosodium glutamate preparation, can solve problems such as the loss of monosodium glutamate, and achieve the effects of easy operation, good popularization and cost saving

Inactive Publication Date: 2019-12-10
卢松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 3. Granular carbon will also adsorb a certain amount of monosodium glutamate, resulting in the loss of monosodium glutamate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of method that adopts macroporous strong base anion resin to refine monosodium glutamate, it comprises the steps:

[0035] 1. Add water and soda ash to glutamic acid crystals and heat to dissolve glutamic acid completely. After dissolution, the volume of neutralization liquid is 9000L, the degree of Baume is 27, and the temperature is 65°C.

[0036] 2. Transfer 9000L of neutralizing solution in step 1 to a decolorization tank, add 45kg of powdered activated carbon, keep warm at 60-65°C, and stir for 35 minutes for decolorization.

[0037] 3. Pump the feed liquid decolorized with powdered activated carbon for 35 minutes in step 2 into the plate frame, filter and intercept the activated carbon, collect about 9000L of plate frame filtrate, and the light transmittance of plate frame filtrate is 86.5%.

[0038] 4. Pump the plate and frame filtrate collected in step 3 into the resin column (macroporous strong alkali styrene anion resin loading capacity 1m 3 ), feed fl...

Embodiment 2

[0043] A kind of method that adopts macroporous strong base anion resin to refine monosodium glutamate, it comprises the steps:

[0044] 1. Add water and soda ash to glutamic acid crystallization and heat to dissolve glutamic acid completely. The volume of neutralization solution is 7000L, the degree of Baume is 26, and the temperature is 63°C.

[0045] 2. Transfer the 7000L neutralizing solution in step 1 to the decolorization tank, add 35kg of powdered activated carbon, keep warm and stir for 40 minutes for decolorization.

[0046] 3. Pump the feed liquid decolorized with activated carbon for 40 minutes in step 2 into the frame, filter and intercept the activated carbon, collect about 7000L of the filtrate of the frame, and the filtrate of the frame is 87% light-transmitting.

[0047] 4. Pump the plate and frame filtrate collected in step 3 into the resin column (macroporous strong alkali styrene anion resin loading capacity 1m 3 ), feed flow rate 2m 3 / h, the light transm...

Embodiment 3

[0052] A kind of method that adopts macroporous strong base anion resin to refine monosodium glutamate, it comprises the steps:

[0053] 1. Add water and soda ash to glutamic acid crystallization and heat to dissolve glutamic acid completely. The volume of neutralization liquid is 8000L, the degree of Baume is 26.5, and the temperature is 64°C.

[0054] 2. Transfer 8000L of neutralizing solution in step 1 to the decolorization tank, add 40kg of powdered activated carbon, keep warm and stir for 35 minutes for decolorization.

[0055] 3. Pump the feed liquid decolorized with activated carbon for 50 minutes in step 2 into the plate frame, filter and intercept the activated carbon, collect about 8000L of plate frame filtrate, and the light transmittance of plate frame filtrate is 87.5%.

[0056] 4. Pump the plate and frame filtrate collected in step 3 into the resin column (macroporous strong alkali styrene anion resin loading capacity 1m 3 ), feed flow rate 2m 3 / h, the light t...

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Abstract

The invention belongs to the technical field of monosodium glutamate preparation, and discloses a method for refining monosodium glutamate by using a macroporous highly basic anion resin, which comprises the following steps: adding water into glutamic acid crystals, adding soda ash for neutralization, adding powdered carbon into an obtained neutralization solution for decolorization, filtering byframe and plate filtration, decolorizing using the macroporous highly basic anion resin, evaporating, concentrating, crystallizing and drying. According to the method, the quality of monosodium glutamate can be improved, the finished monosodium glutamate is snow-white and transparent, and the consumption of acid, alkali and water can be reduced.

Description

technical field [0001] The invention belongs to the technical field of monosodium glutamate preparation, relates to a production method of refined monosodium glutamate, in particular to a method of refining monosodium glutamate by using macroporous strong base anion resin. Background technique [0002] Monosodium glutamate, the scientific name is sodium glutamate, and the chemical name is monosodium α-aminoglutaric acid. It is a salt formed by sodium ions and glutamate ions. Among them, glutamic acid is an amino acid and sodium is a metal element. . The main ingredient of seasoning MSG commonly used in life is sodium glutamate. Monosodium glutamate is a commonly used flavoring agent in daily life, which can increase the umami taste of food and help improve the digestibility of food by the human body. In addition, sodium glutamate has very important functions and is widely used in food, medicine, industry and agriculture. [0003] At present, the main production process of...

Claims

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Application Information

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IPC IPC(8): C07C227/40C07C229/24
CPCC07C227/40
Inventor 李学朋徐淑伟伏广好杜鹏徐亚娟高启超刘超
Owner 卢松
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