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Method for separation and purification of betaine from beet molasses

A beet molasses, separation and purification technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve problems such as environmental pollution and waste of resources, and achieve the effects of reducing production wastewater, improving purity and yield

Inactive Publication Date: 2016-05-11
ANHUI BBCA FERMENTATION TECH ENG RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of these waste liquids are discharged, which pollutes the environment and wastes resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The method that present embodiment extracts betaine from sugar beet molasses, comprises the steps:

[0028] (1) Measure beet molasses: the betaine content is 7%, and the total sugar content is 46%. Put it in a water bath, add pure water at a ratio of 1:1.8 for dilution, and stir at 55°C.

[0029] (2) Pass the diluted feed liquid through a ceramic membrane with a pore size of 80nm. During the microfiltration process, the temperature is controlled at 65°C, the feed pressure is 0.2-0.25MPa, the discharge pressure is 0.15-0.20MPa, and the membrane flux is 60LMH. The amount of water added was 32% (v / v) of the total volume of the feed, and the permeate was collected after filtration. Betaine yield 99%;

[0030] (3) Use a nanofiltration membrane (rolled membrane) with a molecular weight of 250D. The inlet pressure of the nanofiltration membrane is 2-2.5Mpa, the outlet pressure is 1.5-2.0Mpa, the flux is 18LMH, and the amount of dialysis water added is 42% of the total volume...

Embodiment 2

[0035] The method that present embodiment extracts betaine from sugar beet molasses, comprises the steps:

[0036] (1) Measure beet molasses: betaine content 10%, total sugar content 48%. Put it in a water bath, add pure water at a ratio of 1:1.5 for dilution, and stir at 60°C.

[0037] (2) Pass the diluted feed liquid through a ceramic membrane with a pore size of 100nm. During the microfiltration process, the temperature is controlled at 70°C, the feed pressure is 0.25-0.3MPa, the discharge pressure is 0.1-0.15MPa, and the membrane flux is 50LMH. The amount of water added was 35% (v / v) of the total volume of the feed, and the permeate was collected after filtration. Betaine yield 98.8%;

[0038] (3) Use a molecular weight 300D nanofiltration membrane (rolled membrane) to treat, the inlet pressure of the nanofiltration membrane is 2.5-3Mpa, the outlet pressure is 2.0-2.5Mpa, the flux is 20LMH, and the volume of the microfiltrate is concentrated to 1 / 8 of the total volume of...

Embodiment 3

[0043] The method that present embodiment extracts betaine from sugar beet molasses, comprises the steps:

[0044] (1) Measure beet molasses: betaine content 8%, total sugar content 40%. Put it in a water bath, add pure water at a ratio of 1:2 for dilution, and stir at 50°C.

[0045] (2) Pass the diluted feed liquid through a ceramic membrane with a pore size of 50nm. During the microfiltration process, the temperature is controlled at 60°C, the feed pressure is 0.2-0.25MPa, the discharge pressure is 0.15-0.2MPa, and the membrane flux is 70LMH. The amount of water added is 30% (v / v) of the total volume of the feed, and the permeate is collected after the filtration, and the betaine yield is 99%;

[0046](3) Use molecular weight 150D nanofiltration membrane (rolled membrane) for treatment, the inlet pressure of nanofiltration membrane is 2-3Mpa, the outlet pressure is 1.5-2.5Mpa, the flux is 15LMH, and the amount of dialyzed water is 40% of the total volume of microfiltrate fe...

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Abstract

The invention discloses a method for separation and purification of betaine from beet molasses; the method comprises the following steps: measuring to take the beet molasses, adding pure water with the temperature of 50-60 DEG C into the beet molasses according to the volume ratio of 1:(1.5-2.0), and stirring evenly, to obtain a diluted liquid; carrying out micro-filtration treatment on the diluted liquid, to obtain a betaine permeation liquid and a concentrated phase; carrying out nanofiltration treatment of the obtained betaine permeation liquid, to obtain a nanofiltration permeation liquid and a concentrated phase; carrying out continuous chromatography treatment of the nanofiltration permeation liquid, and collecting a betaine component liquid; carrying out concentration, crystallization and centrifugation of the betaine component liquid, to obtain betaine crystals; and drying the betaine crystals, and thus obtaining the betaine finished product. The method for separation and purification of the betaine from the beet molasses is a membrane and chromatography combined method, and an advanced membrane separation process is used for replacing a traditional ion exchange resin separation process; and the membrane separation and chromatographic separation conditions are optimized, so the purity and yield of the betaine are greatly improved.

Description

technical field [0001] The invention relates to the technical field of chemical purification, in particular to a method for separating and purifying betaine from beet molasses. Background technique [0002] Betaine, also known as trimethylglycine, is a kind of quaternary ammonium alkaloid, and its chemical molecular structure is simplified: (CH 3 ) 3 N + CH 2 COO - , molecular weight 117.15, usually contains a crystal water. It is a colorless or slightly brown crystalline compound with a sweet taste, good stability and strong antioxidant capacity. Betaine has multiple functions. As a high-efficiency methyl donor, it can promote animal fat metabolism, relieve stress, regulate osmotic pressure, promote livestock growth, increase body weight and egg production, stabilize vitamins, prevent coccidiosis, and prevent fat Liver, improve feed utilization and other functions. [0003] A large amount of waste honey is produced in the beet sugar production process, which is usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/12C07C227/40
CPCC07C227/40
Inventor 孙杨静潘声龙杨为华纪传侠潘成莉
Owner ANHUI BBCA FERMENTATION TECH ENG RES
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