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Method for equivalent dialysis through directly adopting membrane treatment

A membrane treatment and direct technology, applied in the field of volume dialysis, can solve the problems of increased treatment cost of acesulfame filtrate, high impurity content of acesulfame potassium, and expensive equipment, so as to save the concentration treatment and recovery process and save steam energy consumption. , The effect of low processing cost

Inactive Publication Date: 2017-01-04
ANHUI WEIDUO FOOD INGREDIENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional two-effect concentration treatment method needs to concentrate the filtrate to crystallization, and then process it through cooling crystallization and separation. Using this method to recycle acesulfame potassium requires large steam consumption and high impurity content in the recovered acesulfame potassium. Secondary refining treatment is often required
The two-effect concentration treatment method consumes about 0.8 tons of steam for every ton of water evaporated, which consumes a lot of energy, and the temperature required for concentration is high, which is easy to cause material decomposition
The new technology of MVR concentration device is an emerging technology, which has a good effect on the treatment of acesulfame-K filtrate, but the device used in this technology is expensive, which will significantly increase the treatment cost of acesulfame-K filtrate

Method used

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  • Method for equivalent dialysis through directly adopting membrane treatment
  • Method for equivalent dialysis through directly adopting membrane treatment
  • Method for equivalent dialysis through directly adopting membrane treatment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of method that the present invention proposes directly adopts membrane treatment equivalent dialysis, comprises the following steps:

[0019] S1: Store the filtrate of acesulfame-K in the filtrate storage tank, which is the original solution;

[0020] S2: Preset the temperature of the filtrate storage tank to 38°C, turn on the hot water circulation system outside the filtrate storage tank, raise the temperature of the raw liquid in the filtrate storage tank to the preset temperature, and set the membrane inlet pressure in the membrane equipment to 23.5kg, The membrane outlet pressure is 23kg. After the temperature of the raw liquid reaches the preset temperature, the outlet valve of the filtrate storage tank and the inlet valve of the membrane equipment are opened, so that the raw liquid enters the membrane equipment, and then permeates and concentrates through the membrane system in the membrane equipment. The organic membrane with a medium molecular weight of 1...

Embodiment 2

[0026] A kind of method that the present invention proposes directly adopts membrane treatment equivalent dialysis, comprises the following steps:

[0027] S1: Store the filtrate of acesulfame-K in the filtrate storage tank, which is the original solution;

[0028] S2: Preset the temperature of the filtrate storage tank at 37°C, turn on the hot water circulation system outside the filtrate storage tank, raise the temperature of the raw liquid in the filtrate storage tank to the preset temperature, and set the equal pressure of the membrane inlet and outlet membrane in the membrane equipment After the raw liquid temperature reaches the preset temperature, open the outlet valve of the filtrate storage tank and the inlet valve of the membrane equipment, so that the raw liquid enters the membrane equipment, and then permeates and concentrates through the membrane system in the membrane equipment. The molecular weight in the membrane system is The organic membrane of 800 is permeat...

Embodiment 3

[0034] A kind of method that the present invention proposes directly adopts membrane treatment equivalent dialysis, comprises the following steps:

[0035] S1: Store the filtrate of acesulfame-K in the filtrate storage tank, which is the original solution;

[0036] S2: Preset the temperature of the filtrate storage tank at 32°C, turn on the hot water circulation system outside the filtrate storage tank, raise the temperature of the raw liquid in the filtrate storage tank to the preset temperature, and set the equal pressure of the membrane inlet and outlet membrane in the membrane equipment. After the raw liquid temperature reaches the preset temperature, open the outlet valve of the filtrate storage tank and the inlet valve of the membrane equipment, so that the raw liquid enters the membrane equipment, and then permeates and concentrates through the membrane system in the membrane equipment. Permeate through the organic membrane of 1200, and the membrane clear liquid flows t...

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Abstract

The invention discloses a method for equivalent dialysis through directly adopting membrane treatment. The method comprises the following steps: S1: storing the filtrate of Acesulfame in a filtrate storage tank, which is taken as a stock solution; S2: adopting a hot water circulation system to increase the temperature of the stock solution in the filtrate storage tank, setting membrane ingress pressure and membrane egress pressure simultaneously, and through transmission and concentration of an organic membrane, allowing a clear membrane liquid to flow to a clear membrane liquid storage tank for recycle; S3: when the clear membrane liquid flux in the clear membrane liquid storage tank drops to 20-60L / PM, using the same amount of water to dialyze, and dialyzing the Acesulfame out and recycling; S4: discharging the residual liquid in a circulation tank to a liquid waste disposing center directly so as to have liquid waste disposal; and S5: washing and detecting membrane equipment. The method disclosed by the invention adopts the hot water circulation system for heating and omits the concentration treating and recycling process, so that the energy consumption is saved, the concentration temperature is low, the material is difficult to break down, the purposes of liquid decoloration and organic salt treatment are realized, the product obtained can be recycled directly, and the equipment has a simple structure and a low treatment cost.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for directly using membranes to treat isodialysis. Background technique [0002] Acesulfame K is a food additive that has the function of increasing the sweetness of food. It has a good taste, no calories, and is not metabolized or absorbed in the human body. It has good stability to heat and acid. It is currently the fourth generation of synthetic sweetener in the world. odorant. Acesulfame K has simple production process, low price, and superior performance. It is considered as one of the most promising sweeteners and is widely used in the production of various foods. As the amount of acesulfame-K used increases, the difficulty of its filtrate treatment also increases. At present, the treatment of acesulfame-K filtrate at home and abroad mainly adopts the traditional two-effect concentration treatment method and the new technology of MVR concentration devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L27/30A23L5/20B01D61/58
CPCB01D61/58A23V2002/00A23V2250/242A23V2300/34A23V2300/50
Inventor 罗春龙杨小锋鲁光贵
Owner ANHUI WEIDUO FOOD INGREDIENTS CO LTD
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