CN106187731A - A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic - Google Patents
A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic Download PDFInfo
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- CN106187731A CN106187731A CN201610537146.9A CN201610537146A CN106187731A CN 106187731 A CN106187731 A CN 106187731A CN 201610537146 A CN201610537146 A CN 201610537146A CN 106187731 A CN106187731 A CN 106187731A
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- xylonic
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- acid
- electrodialysis
- step method
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of electrodialysis desalination and acid converts the method that one-step method produces xylonic, bipolar membrane electrodialysis is used to process xylose hydrochlorate, while electrodialysis desalination, it is electrolysed xylose hydrochlorate with electric field for driving force and generates xylonic, it is achieved one-step method completes desalination and acid converts the effect producing xylonic.With xylose hydrochlorate (sodium, potassium, zinc) as material liquid, after the impurity such as adsorbing and removing colloid, use bipolar membrane electrodialysis, the resistivity deionized water higher than 18 megohms is added in acid room, alkali room, with 0.1mol/L～0.5mol/L sodium sulfate for connecting the conducting medium between film group device and membrane electrode, processing xylonic saline solution under the conditions of voltage 15～20V and electric current 0～10A, the electrical conductivity to product liquid drops to below 300ms/cm and no longer declines, and i.e. obtains xylonic product liquid.The salt rejection rate of xylose hydrochlorate material liquid is higher than 99%, and saccharic acid conversion ratio is higher than 97%, it is achieved one-step method produces the effect of xylonic, have simple to operate, produce efficiently and the advantage of low cost.
Description
One, technical field
The present invention relates to a kind of electrodialysis desalination and acid converts the method that one-step method produces xylonic, particularly to Bipolar Membrane
Electrodialysis process bio-based xylonic product salt liquid, it is achieved product desalination, the technology that refined, xylonic is produced in acid conversion.
Two, background technology
Xylonic is a kind of emerging biobased products, can be used as cement water reducing agent, concrete dispersant, oil well mud slow release
Agent, tanning extracts, pipeline scale inhibitor and Deruster for metal, develop novel non-energy type edible acidic flavoring agent, the refreshing fibre of ice based on xylonic
Dimension blending agent etc..
At present, the product design of whole-cell catalytic xylose production xylose hydrochlorate can reach nearly 600g/L.At whole-cell catalytic
Xylose can cause the pH value rapid decrease of biological respinse system when generating xylonic, for keeping production efficiency must add basic species by stream
Matter with stable pH value and protection catalytic activity of cells, obtained product with xylonic salt form existence, it is necessary to by desalination,
Acid converts and transforms into xylonic product, and the production efficiency of the ion exchange of routine is low and operation complexity.
Three, summary of the invention
Goal of the invention: convert produce the technical problem of xylonic for bio-based xylonic product salt loss of thick fluid salt, acid, use
Bipolar membrane electrodialysis method isolated and purified xylonic product salt liquid, can complete desalination with one-step method and acid converts, reach quick, easy
Productive target.
Technical scheme: in order to realize foregoing invention purpose, the technical solution used in the present invention is as follows:
A kind of electrodialysis desalination and acid convert the one-step method method of producing xylonic, it is characterised in that include below step:
(1) adding xylonic saline solution in bipolar membrane electrodialysis salt room, (quality contains less than 35% to control its concentration
Amount).The metabisulfite solution of 0.1mol/L～0.5mol/L is added in room, pole.And add a certain amount of going in acid room, alkali room
Ionized water.
(2) salt room conductivity variations is monitored in real time with conductivity meter, no longer changing to salt room electrical conductivity, reaction knot
Bundle.Collect the acid room i.e. target product xylonic of product.
In described xylose hydrochlorate, metal ion is the soluble metal ions such as sodium, potassium, zinc, and charging no suspended substance, with
Prevent causing Bipolar Membrane to block.
Described xylonic salinity need to control in 35% (mass content) below, in case high viscosity and crystallization are to membrane module
Cause damage.
Four, detailed description of the invention
Embodiment 1
Adding the xylonic sodium solution 800mL of 73.28g/L in salt room, the sodium sulfate adding 0.3mol/L in room, pole is molten
Liquid 800mL, adds 800mL deionized water in acid alkali room, room, and external dc power supply reacts, and monitors with conductivity meter
Reaction process.Salt room electrical conductivity of solution value stabilization after reaction 1h, now generates 48.4g/L xylonic 1000mL, salt room in acid room
Middle residual 0.78g/L xylonic sodium 500mL.The xylonic response rate is 93%, and sodium ion clearance is 99.36%.
Embodiment 2
Adding the xylonic sodium solution 500mL of 167.33g/L in salt room, the Na2SO4 adding 0.3mol/L in room, pole is molten
Liquid 500mL, adds 500mL deionized water in acid alkali room, room, and external dc power supply reacts, and monitors with conductivity meter
Reaction process.After reaction 1h, salt room electrical conductivity of solution value keeps stable, and now, acid generates 89.72g/L xylonic in room
800mL, remains 0.93g/L xylonic sodium 300mL in salt room.The xylonic response rate is 97%, and sodium ion clearance is
99.67%.
Claims (3)
1. an electrodialysis desalination and acid convert the method that one-step method produces xylonic, it is characterised in that include below step:
(1) in bipolar membrane electrodialysis salt room, add xylonic saline solution, control its concentration less than 35% (mass content).?
Room, pole adds the metabisulfite solution of 0.1mol/L～0.5mol/L.And add a certain amount of deionized water in acid room, alkali room.
(2) monitoring salt room conductivity variations in real time with conductivity meter, no longer changing to salt room electrical conductivity, reaction terminates.Receive
The collection acid room i.e. target product xylonic of product.
A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic, and its feature exists
In: in xylose hydrochlorate, metal ion is the soluble metal ions such as sodium, potassium, zinc, and charging no suspended substance, in case causing Bipolar Membrane
Blocking.
A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic, and its feature exists
In: xylonic salinity need to control in 35% (mass content) below, in case membrane module is caused damage by high viscosity and crystallization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537146.9A CN106187731A (en) | 2016-07-05 | 2016-07-05 | A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537146.9A CN106187731A (en) | 2016-07-05 | 2016-07-05 | A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic |
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| Publication Number | Publication Date |
|---|---|
| CN106187731A true CN106187731A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537146.9A Pending CN106187731A (en) | 2016-07-05 | 2016-07-05 | A kind of electrodialysis desalination and acid convert the method that one-step method produces xylonic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082440A1 (en) * | 2019-10-28 | 2021-05-06 | 南京林业大学 | Method for producing xylooligosaccharide under catalysis of xylonic acid |
| CN114934079A (en) * | 2022-04-11 | 2022-08-23 | 南京林业大学 | Method for preparing high-purity galactaric acid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234961A (en) * | 2008-03-04 | 2008-08-06 | 江苏道森生物化学有限公司 | Method for preparing lactic acid by applying double pole film electrodialysis technique |
| CN104086409A (en) * | 2014-07-22 | 2014-10-08 | 宜宾丝丽雅集团有限公司 | Process for producing gluconic acid by use of bipolar membrane electrodialysis method |
-
2016
- 2016-07-05 CN CN201610537146.9A patent/CN106187731A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234961A (en) * | 2008-03-04 | 2008-08-06 | 江苏道森生物化学有限公司 | Method for preparing lactic acid by applying double pole film electrodialysis technique |
| CN104086409A (en) * | 2014-07-22 | 2014-10-08 | 宜宾丝丽雅集团有限公司 | Process for producing gluconic acid by use of bipolar membrane electrodialysis method |
Non-Patent Citations (2)
| Title |
|---|
| 徐芝勇、张建国: "双极膜电渗析技术在有机酸生产中的应用进展", 《膜科学与技术》 * |
| 黄川徽 等: "双极膜法生产葡萄糖酸的规模化研究", 《中国科学技术大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082440A1 (en) * | 2019-10-28 | 2021-05-06 | 南京林业大学 | Method for producing xylooligosaccharide under catalysis of xylonic acid |
| CN114934079A (en) * | 2022-04-11 | 2022-08-23 | 南京林业大学 | Method for preparing high-purity galactaric acid |
| CN114934079B (en) * | 2022-04-11 | 2024-03-08 | 南京林业大学 | Method for preparing high-purity galactaric acid |
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Application publication date: 20161207 |
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