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Separation process

A separation procedure and fractionation technology, applied in the field of chromatographic separation, can solve problems that have not been raised or disclosed, and achieve the effect of improving separation ability

Inactive Publication Date: 2013-02-27
DUPONT NUTRITION BIOSCIENCES APS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Furthermore, there is no multispectral sequential SMB separation method proposed or disclosed in the art for the recovery of sucrose and betaine from sugar beet-based solutions with high sucrose content (greater than 70%), especially in a triplet mode SMB separation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1A

[0130] SMB Separation of Low-purity Raw Honey in the Second Loop and Two-Spectrum-Reference Example

[0131] Process equipment includes 6 columns, required piping, feed pumps, circulation pumps, elution water pumps, heat exchangers, feed and eluent tanks and product tanks, flow control devices for output liquids, and various process materials Flow inlet valve and product valve. The height of all columns is 4.0m, the diameter of all columns is 5.15m, and the first column consists of two compartments with the same dimensions. The column is filled with Na + Form of strongly acidic gel-type cation exchange resin (Dowex monosphere 99K / 350). The average bead size of the resin was 0.35mm.

[0132] Before separation, the low-purity raw honey was diluted with the recycled fraction (obtained from the separation process) and carbonated with sodium carbonate to reduce the calcium content of the solution. Finally, low-purity raw honey is pre-filtered using diatomaceous earth as a fil...

example 1B

[0154] Example 1B: Triple Spectrum / Triple Loop SMB Chromatographic Separation of Beet Molasses - Reference Example

[0155] Process equipment consists of three columns in series, feed pumps, circulation pumps, elution water pumps, heat exchangers, flow control devices for output liquids, and inlet and product valves for various process streams. All columns are 5m in height and about 0.2m in diameter. The column is filled with Na + Form of strongly acidic gel-type cation exchange resin (Finex V09C). The average bead size of the resin was about 0.37 mm. The DVB content of the resin is 4.5%.

[0156] The molasses is pre-filtered after carbonation using diatomaceous earth as a filter aid before separation. The composition of the feed is shown below, percentages are by weight of dry matter.

[0157] Table E1B-1

[0158]

[0159] Following Example 1 of US 6572775B2, fractionation was carried out by the 8-step SMB procedure shown below. The purpose of separation is to s...

example 1C

[0174] Example 1C: Triple Spectrum / Triple Loop SMB Separation of Beet Molasses - Reference Example

[0175] Process equipment consists of three columns in series, feed pumps, circulation pumps, elution water pumps, heat exchangers, flow control devices for output liquids, and inlet and product valves for various process streams. All columns have a height of 5m and a diameter of 0.2m. The column is filled with Na + Form of strongly acidic gel-type cation exchange resin (Finex). The average bead size of the resin was about 0.36 mm. The DVB content of the resin is 5.5%.

[0176] The molasses is pre-filtered after carbonation using diatomaceous earth as a filter aid before separation. The composition of the feed is shown below, percentages are by weight of dry matter.

[0177] Table E1C-1

[0178] Composition of feed

Sucrose, % by DS

59.6

Betaine, % by DS

5.6

Other components (mainly salts), % by DS

34.8

Feed con...

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Abstract

The invention relates to a three-profile chromatographic sequential SMB process of separating and recovering products such as sugars and betaine from multicomponent feed solutions. In the process of the invention, product fractions and optionally recycle fractions are collected from several positions of the chromatographic separation system. The process of the invention may be applied to the separation of sucrose and betaine from sugar beet based solutions and to the separation of sugars, e.g. xylose, from plant-based hydrolysates, for example.

Description

technical field [0001] The present invention relates to the field of chromatographic separations, in particular chromatographic fractionation of solutions comprising sugars, sugar alcohols, sugar acids and / or betaines by sequential multiprofile simulated moving bed (SMB) chromatography. The solutions are typically multicomponent plant-based extracts and their hydrolysates and derivatives, eg solutions based on sugar beet or plant hydrolysates comprising xylose. The multispectral SMB process of the present invention aims to increase the separation capacity of the process while maintaining or even increasing the yield and / or purity of the product and / or the water / feed ratio of the system. Background technique [0002] US 6875349B2, US 6572775B2 and US 6572776B2 disclose methods and systems for fractionating a solution into two or more fractions by simulated moving bed (SMB) chromatography, wherein the separation system includes at least two Separate spectra. The SMB method c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/18C13K13/00C13B35/06C07C229/12
CPCC13B20/148C13K13/00C07C227/40B01D15/185C07C229/12
Inventor J·艾拉克西南H·帕纳南J·莱万多夫斯基K·莱霍
Owner DUPONT NUTRITION BIOSCIENCES APS