CN104328452B - Producing technology of gluconic acid through bipolar membrane electrodialysis method - Google Patents
Producing technology of gluconic acid through bipolar membrane electrodialysis method Download PDFInfo
- Publication number
- CN104328452B CN104328452B CN201410349384.8A CN201410349384A CN104328452B CN 104328452 B CN104328452 B CN 104328452B CN 201410349384 A CN201410349384 A CN 201410349384A CN 104328452 B CN104328452 B CN 104328452B
- Authority
- CN
- China
- Prior art keywords
- bipolar membrane
- membrane electrodialysis
- gluconic acid
- production technology
- sodium gluconate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 title claims abstract description 131
- 239000012528 membrane Substances 0.000 title claims abstract description 124
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 75
- 235000012208 gluconic acid Nutrition 0.000 title claims abstract description 64
- 239000000174 gluconic acid Substances 0.000 title claims abstract description 59
- 229950006191 gluconic acid Drugs 0.000 title claims abstract description 59
- 238000005516 engineering process Methods 0.000 title claims abstract description 32
- 238000011045 prefiltration Methods 0.000 claims abstract description 63
- UPMFZISCCZSDND-JJKGCWMISA-M Sodium gluconate Chemical compound [Na+].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O UPMFZISCCZSDND-JJKGCWMISA-M 0.000 claims abstract description 62
- 229940005574 Sodium gluconate Drugs 0.000 claims abstract description 62
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 62
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 62
- 239000003513 alkali Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 10
- 206010067868 Skin mass Diseases 0.000 claims description 46
- 238000004519 manufacturing process Methods 0.000 claims description 38
- 239000000706 filtrate Substances 0.000 claims description 20
- 238000007037 hydroformylation reaction Methods 0.000 claims description 16
- 239000012466 permeate Substances 0.000 claims description 16
- 229920002994 synthetic fiber Polymers 0.000 claims description 16
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 11
- 229910052708 sodium Inorganic materials 0.000 claims description 11
- 239000011734 sodium Substances 0.000 claims description 11
- 229920002521 Macromolecule Polymers 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- 241000219095 Vitis Species 0.000 claims description 4
- DSLZVSRJTYRBFB-LLEIAEIESA-N Saccharic acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O DSLZVSRJTYRBFB-LLEIAEIESA-N 0.000 claims description 3
- 235000009392 Vitis Nutrition 0.000 claims description 2
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 2
- 235000009754 grape Nutrition 0.000 claims description 2
- 235000012333 grape Nutrition 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- DSLZVSRJTYRBFB-LLEIAEIESA-L D-glucarate(2-) Chemical compound [O-]C(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O DSLZVSRJTYRBFB-LLEIAEIESA-L 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 239000000356 contaminant Substances 0.000 abstract 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 15
- 238000004513 sizing Methods 0.000 description 15
- 229920004933 Terylene® Polymers 0.000 description 14
- 238000001914 filtration Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000717 retained Effects 0.000 description 5
- 238000009738 saturating Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- PHOQVHQSTUBQQK-SQOUGZDYSA-N Glucono δ-lactone Chemical compound OC[C@H]1OC(=O)[C@H](O)[C@@H](O)[C@@H]1O PHOQVHQSTUBQQK-SQOUGZDYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 241001597008 Nomeidae Species 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 230000003197 catalytic Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002255 enzymatic Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 239000005452 food preservative Substances 0.000 description 1
- 235000019249 food preservative Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002620 method output Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003204 osmotic Effects 0.000 description 1
- -1 ph regulator Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002335 preservative Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention provides a producing technology of gluconic acid through a bipolar membrane electrodialysis method. The method includes following steps: enabling a raw material, sodium gluconate, to pass through a pre-filter for removing large-granular suspended solids, enabling the sodium gluconate to pass through a microporous filter to intercept large-molecular contaminants to obtain a sodium gluconate permeated solution, feeding the sodium gluconate permeated solution into a bipolar-membrane electrodialysis membrane stack for circulation, and recycling NaOH obtained in an alkali chamber and the gluconic acid obtained in an acid chamber. The sodium gluconate permeated solution is 10-40% of mass fraction, is 15-50 DEG C in temperature, is not more than 30 mg/L in hardness, is not more than 0.5 mg/L in suspended solid, is 22-30 ms/cm in conductivity and is not more than 0.8% in residual-sugar concen tration. In the invention, the raw material, sodium gluconate, is subjected to pre-treatment so that indexes of the pre-treated sodium gluconate are suitable for the subsequent bipolar membrane electrodialysis technology. The producing technology is high in recycling ratio of the gluconic acid, is low in energy consumption and is stable in operation.
Description
Technical field
The invention belongs to gluconic acid production field is and in particular to a kind of bipolar membrane electrodialysis method of gluconic acid produces work
Skill.
Background technology
Gluconic acid derivatives are by material obtained from certain combination reaction by gluconic acid, with people's life
Work, the progressively in-depth of nutrition science theory, the exploitation to food and manufacture propose and update higher requirement, nutrition enhancer
Exploitation is increasingly subject to the attention of people, and gluconic acid derivatives are exactly the class product wherein having a extensive future.
Gluconic acid-lactone has been widely used as the coagulator of protein (bean curd), acidic flavoring agent, face in the food industry
Product modifier, ph regulator, food preservative and preservative etc., are applied to chemical and medicine industry, cement water reducing agent and detergent
Aspect.There is 4 kinds of fermentation method, enzymatic measurement, chemical catalysis and electrolytic oxidation etc. from the method for Dextrose production gluconic acid.
At present, domestic gluconic acid derivatives from past more single Cultivar development multi items till now, scale was from the past
Produce 260000 tons of level than relatively low upper kiloton annual production development till now per year.These derivant major parts are all from raw material Fructus Vitis viniferae
The production of saccharic acid starts, and Bipolar Membrane method is produced gluconic acid at present and replaces present traditional processing technology, subtracts in energy-conservation
Row, reduction production cost, improve product quality aspect produce notable benefit.
As 200910192646.3, the patent of invention of entitled " a kind of production method of gluconic acid lactone ", disclose
A kind of production method of gluconic acid lactone, instead of the sock filtration in traditional handicraft, using continuous using ceramic membrane filter
Separation of fluids is replaced fixed-bed ion exchange and using reverse osmosiss, gluconic acid is concentrated.Continuous fluid separation method
Use resin method, a large amount of acid-bearing wastewaters and spent resin can be produced, environmental pollution is big, production cost is high.
Document " Bipolar Membrane method prepares gluconic acid industrialized production research " (" water technology ", volume 37 o. 11th) and
" Bipolar Membrane method produces the scale research of gluconic acid " (" China Science ＆ Technology University's journal ", the 6th phase of volume 38), report respectively
The production technology of gluconic acid is prepared in road using Bipolar Membrane method from catalytic oxidation sodium gluconate feed liquid.Two documents all do not have
Have and pretreatment is carried out to the sodium gluconate entering before Bipolar Membrane, do not control the index of sodium gluconate feed liquid, lead to produce
Efficiency is low, production cost is high.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of bipolar membrane electrodialysis method of gluconic acid produces work
Skill.By carrying out pretreatment to gluconic acid sodium raw materials, pretreated sodium gluconate index is made to be applied to follow-up bipolar
EDBM technique, can reach the purpose that the gluconic acid response rate is high, energy consumption is low, stable.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of bipolar membrane electrodialysis method production technology of gluconic acid it is characterised in that: gluconic acid sodium raw materials first pass through
Prefilter removes oarse-grained float, then the pollutant by the method retention macromolecule of microfilter, gained
Sodium gluconate permeate enters bipolar membrane electrodialysis membrane stack and is circulated, and reclaims the Portugal that the naoh that obtains of alkali room and sour room obtain
Grape saccharic acid；The mass fraction of described sodium gluconate permeate is 10%-40%, and temperature is 15-50 DEG C, and hardness 30mg/l is hanged
Float 0.5mg/l, electrical conductivity is 22-30ms/cm, remaining sugar concentration 0.8%.
When the salt room electrical conductivity of solution of described bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate is tied
Shu Xunhuan.
The temperature of sodium gluconate is too high, and the performance of film can be made to change, and leads to film to damage and lost efficacy；Much higher hard can be
Bipolar membrane electrodialysis running, produces precipitation in alkali room, leads to bipolar membrane electrodialysis group device runner and film blocking；Conductance
The size of rate affects the efficiency that bipolar membrane electrodialysis run；Remaining sugar concentration is the key element to control of product quality.The present invention passes through
The preprocess method of sodium gluconate, above-mentioned each parameter that prepared by Bipolar Membrane method with the production technology of gluconic acid is strictly controlled
System, makes technique reach optimization, and first mate improves current efficiency, effectively reduces production cost and energy consumption, improve product quality.
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4, quality is dense
Spend for 5% it is ensured that current efficiency.
The aperture of described prefilter is 20 μm.Impurity with diameter greater than 20 μm is filtered out by prefilter, keeps away
Exempt from bulky grain to result in blockage in the operation of subsequent film.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.Organic substance ability in absorption sodium gluconate is strong, especially for the cellulose family Adsorption of Organic in sodium gluconate
Effect is especially good.Filtering velocity is fast, retaining power is big, good filtration effect, and filtering velocity ratio tradition sand filtering material is high 3.5 times, and filtrate energy backwash is again
Raw.
The sphere diameter 25-30mm of described fibrous nodules, ball density 1.2-1.3kg/m3, packing density 75-80kg/ m3.Help
The component target of sodium gluconate after realizing pretreatment of the present invention.
The flow velocity of described prefilter is 8-10m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash, because the cellulose in sodium gluconate easily blocks filter element, should slightly carry out in advance, when pressure drop is more than 0.08mpa, just should
This cleaning filter element, otherwise filter element be difficult to clean up, can make if things go on like this filtrate produce caking.
The operation temperature of described microfilter is 20-40 DEG C, and pressure is 0.1-0.5mpa.
The membrane aperture of described microfilter is 0.1-0.2 μm.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 50-200l/h, electrodialytic efficiency high.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 100-150v, and current value is 80-120a, electric current
Density is little, realizes the maximization of current efficiency.
The alkali room of described bipolar membrane electrodialysis, the initial concentration of alkali liquor be 20g/l it is ensured that electrodialytic be smoothed out,
Current efficiency highest.
After described bipolar membrane electrodialysis terminate, the alkali liquor mass concentration of alkali room is 5-8%, the gluconic acid quality of sour room
Concentration is 25-50%, and sodium gluconate reaction completely, significantly exceeds the gluconic acid concentration of conventional resins method output.
In described membrane stack, effective membrane area of single film is 0.25.
The beneficial effects of the present invention is:
1st, the present invention, by carrying out pretreatment to gluconic acid sodium raw materials, prepares the production work of gluconic acid to Bipolar Membrane method
Each parameter of skill is optimized, and the mass fraction controlling the sodium gluconate entering membrane stack is 10%-40%, and temperature is 15-50 DEG C,
Hardness 30mg/l, float 0.5mg/l, electrical conductivity is 22-30ms/cm, remaining sugar concentration 0.8%.Optimum by technique
Change, the conversion ratio obtaining gluconic acid is more than 98%, and energy consumption is 200-300 degree electricity/ton product.First mate improve current efficiency,
Effectively reduce production cost and energy consumption, improve product quality.
2nd, the present invention adopts the technique of prefilter-micro-filter-bipolar membrane electrodialysis to gluconic acid sodium raw materials, passes through
Technology controlling and process to prefilter in pretreatment and micro-filter, the index satisfaction obtaining sodium gluconate permeate is subsequently bipolar
The requirement that EDBM is processed, can preferably carry out electrodialysis, effective reducing energy consumption, improve osmotic efficiency, obtain gluconic acid
Purity high and stable.
3rd, the present invention is also strictly controlled to the technological parameter in electrodialytic process, by conducting medium na2so4Quality
Concentration is limited in 5%, and magnitude of voltage is 100-150v, and current value realizes current efficiency for 80-120a it is ensured that electric current density is little
Maximize.
4th, during bipolar membrane electrodialysis, the initial concentration of alkali liquor is 20g/l, and after electrodialysis terminate, alkali liquor quality is dense
Spend for 5-8%, the gluconic acid mass concentration of sour room is 25-50%, and sodium gluconate reaction completely, significantly exceeds conventional resins method
The gluconic acid concentration of output, is that current efficiency highest is further ensured that, electrodialysis efficiency maximizes.
5th, the present invention controls the pressure drop that sodium gluconate passes through microfilter filter element to be more than 0.08mpa, that is, to filter element
It is carried out, because the cellulose in sodium gluconate easily blocks filter element, should slightly carry out in advance, when pressure drop is more than 0.08mpa
When, just should clean filter element, otherwise filter element is difficult to clean up, filtrate can be made if things go on like this to produce caking.
6th, the present invention selects fibrous nodules as the filtrate of prefilter, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing
Dacron thread.Organic substance ability in absorption sodium gluconate is strong, especially for the cellulose family Organic substance in sodium gluconate
Adsorption effect is especially good.Filtering velocity is fast, retaining power is big, good filtration effect, and filtering velocity ratio tradition sand filtering material is high 3.5 times, and filtrate can be anti-
Wash regeneration.
7th, the present invention controls the sphere diameter 25 ~ 30mm, ball density 1.2 ~ 1.3kg/m of fibrous nodules3, packing density is 75 ~ 80kg/
m3, contribute to realizing the component target of sodium gluconate after pretreatment of the present invention.
Specific embodiment
With reference to specific embodiment, the essentiality content of the present invention is described in further detail.
Embodiment 1
A kind of bipolar membrane electrodialysis method production technology of gluconic acid, gluconic acid sodium raw materials first pass through prefilter and remove
Oarse-grained float, then the pollutant of macromolecule are retained by the method for microfilter, the sodium gluconate of gained is saturating
Cross liquid and enter bipolar membrane electrodialysis membrane stack and be circulated, reclaim the gluconic acid that the naoh that obtains of alkali room and sour room obtain；Described
The mass fraction of sodium gluconate permeate is 10%%, and temperature is 15 DEG C, hardness 30mg/l, float 0.5mg/l, conductance
Rate is 22ms/cm, remaining sugar concentration 0.8%.
Embodiment 2
A kind of bipolar membrane electrodialysis method production technology of gluconic acid, gluconic acid sodium raw materials first pass through prefilter and remove
Oarse-grained float, then the pollutant of macromolecule are retained by the method for microfilter, the sodium gluconate of gained is saturating
Cross liquid and enter bipolar membrane electrodialysis membrane stack and be circulated, reclaim the gluconic acid that the naoh that obtains of alkali room and sour room obtain；Described
The mass fraction of sodium gluconate permeate is 40%, and temperature is 50 DEG C, hardness 30mg/l, float 0.5mg/l, conductance
Rate is 30ms/cm, remaining sugar concentration 0.8%.
When the salt room electrical conductivity of solution of described bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate is tied
Shu Xunhuan.
Embodiment 3
A kind of bipolar membrane electrodialysis method production technology of gluconic acid, gluconic acid sodium raw materials first pass through prefilter and remove
Oarse-grained float, then the pollutant of macromolecule are retained by the method for microfilter, the sodium gluconate of gained is saturating
Cross liquid and enter bipolar membrane electrodialysis membrane stack and be circulated, reclaim the gluconic acid that the naoh that obtains of alkali room and sour room obtain；Described
The mass fraction of sodium gluconate permeate is 30%, and temperature is 30 DEG C, hardness 30mg/l, float 0.5mg/l, conductance
Rate is 25ms/cm, remaining sugar concentration 0.8%.
When the salt room electrical conductivity of solution of described bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate is tied
Shu Xunhuan.
Embodiment 4
A kind of bipolar membrane electrodialysis method production technology of gluconic acid, gluconic acid sodium raw materials first pass through prefilter and remove
Oarse-grained float, then the pollutant of macromolecule are retained by the method for microfilter, the sodium gluconate of gained is saturating
Cross liquid and enter bipolar membrane electrodialysis membrane stack and be circulated, reclaim the gluconic acid that the naoh that obtains of alkali room and sour room obtain；Described
The mass fraction of sodium gluconate permeate is 35%, and temperature is 25 DEG C, hardness 30mg/l, float 0.5mg/l, conductance
Rate is 23ms/cm, remaining sugar concentration 0.8%.
When the salt room electrical conductivity of solution of described bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate is tied
Shu Xunhuan.
Embodiment 5
A kind of bipolar membrane electrodialysis method production technology of gluconic acid, gluconic acid sodium raw materials first pass through prefilter and remove
Oarse-grained float, then the pollutant of macromolecule are retained by the method for microfilter, the sodium gluconate of gained is saturating
Cross liquid and enter bipolar membrane electrodialysis membrane stack and be circulated, reclaim the gluconic acid that the naoh that obtains of alkali room and sour room obtain；Described
The mass fraction of sodium gluconate permeate is 20%, and temperature is 32 DEG C, hardness 30mg/l, float 0.5mg/l, conductance
Rate is 26ms/cm, remaining sugar concentration 0.8%.
When the salt room electrical conductivity of solution of described bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate is tied
Shu Xunhuan.
Embodiment 6
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
Embodiment 7
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 50l/h.
Embodiment 8
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 200l/h.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 150v, and current value is 120a.
Embodiment 9
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 100l/h.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 100v, and current value is 80a.
The alkali room of described bipolar membrane electrodialysis, the initial concentration of alkali liquor is 20g/l.
Embodiment 10
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 60l/h.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 120v, and current value is 90a.
The alkali room of described bipolar membrane electrodialysis, the initial concentration of alkali liquor is 20g/l.
After described bipolar membrane electrodialysis terminate, the alkali liquor mass concentration of alkali room is 5%, and the gluconic acid quality of sour room is dense
Spend for 25%.
Embodiment 11
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 150l/h.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 135v, and current value is 115a.
The alkali room of described bipolar membrane electrodialysis, the initial concentration of alkali liquor is 20g/l.
After described bipolar membrane electrodialysis terminate, the alkali liquor mass concentration of alkali room is 8%, and the gluconic acid quality of sour room is dense
Spend for 50%.
Embodiment 12
The present embodiment is substantially the same manner as Example 4, on this basis:
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of described Bipolar Membrane is na2so4Solution, matter
Amount concentration is 5%.
During described bipolar membrane electrodialysis, the flow of sodium gluconate is 120l/h.
Described bipolar membrane electrodialysis impressed DC voltage, magnitude of voltage is 120v, and current value is 95a.
The alkali room of described bipolar membrane electrodialysis, the initial concentration of alkali liquor is 20g/l.
After described bipolar membrane electrodialysis terminate, the alkali liquor mass concentration of alkali room is 6%, and the gluconic acid quality of sour room is dense
Spend for 35%.
In described membrane stack, effective membrane area of single film is 0.25.
Embodiment 13
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Embodiment 14
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
Embodiment 15
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 25mm of described fibrous nodules, ball density 1.2kg/m3, packing density 75kg/ m3.
Embodiment 16
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 30mm of described fibrous nodules, ball density 1.3kg/m3, packing density 80kg/ m3.
The flow velocity of described prefilter is 8m/h.
Embodiment 17
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 26mm of described fibrous nodules, ball density 1.25kg/m3, packing density 76kg/ m3.
The flow velocity of described prefilter is 10m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
Embodiment 18
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 27mm of described fibrous nodules, ball density 1.22kg/m3, packing density 78kg/ m3.
The flow velocity of described prefilter is 9m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
The operation temperature of described microfilter is 20 DEG C, and pressure is 0.1mpa.
Embodiment 19
The present embodiment is substantially the same manner as Example 5, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 28mm of described fibrous nodules, ball density 1.26kg/m3, packing density 76kg/ m3.
The flow velocity of described prefilter is 8.5m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
The operation temperature of described microfilter is 40 DEG C, and pressure is 0.5mpa.
The membrane aperture of described microfilter is 0.1 μm.
Embodiment 20
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Embodiment 21
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
Embodiment 22
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 29mm of described fibrous nodules, ball density 1.26kg/m3, packing density 75kg/ m3.
Embodiment 23
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 27mm of described fibrous nodules, ball density 1.2kg/m3, packing density 80kg/ m3.
The flow velocity of described prefilter is 8m/h.
Embodiment 24
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 25mm of described fibrous nodules, ball density 1.25kg/m3, packing density 78kg/ m3.
The flow velocity of described prefilter is 10m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out to filter element
Cleaning.
Embodiment 25
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 25mm of described fibrous nodules, ball density 1.26kg/m3, packing density 78kg/ m3.
The flow velocity of described prefilter is 9.5m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
The operation temperature of described microfilter is 25 DEG C, and pressure is 0.3mpa.
Embodiment 26
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 30mm of described fibrous nodules, ball density 1.28kg/m3, packing density 79kg/ m3.
The flow velocity of described prefilter is 8.6m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
The operation temperature of described microfilter is 30 DEG C, and pressure is 0.4mpa.
The membrane aperture of described microfilter is 0.2 μm.
Embodiment 27
The present embodiment is substantially the same manner as Example 12, on this basis:
The aperture of described prefilter is 20 μm.
Filtrate in described prefilter is fibrous nodules, and the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and sizing terylene
Silk.
The sphere diameter 27mm of described fibrous nodules, ball density 1.25kg/m3, packing density 75kg/ m3.
The flow velocity of described prefilter is 8m/h.
Described prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, is carried out clearly to filter element
Wash.
The operation temperature of described microfilter is 25 DEG C, and pressure is 0.25mpa.
The membrane aperture of described microfilter is 0.16 μm.
Claims (15)
1. a kind of gluconic acid bipolar membrane electrodialysis method production technology it is characterised in that: gluconic acid sodium raw materials first pass through pre-
Filter removes oarse-grained float, then the pollutant by the method retention macromolecule of microfilter, the Portugal of gained
Grape sodium saccharate permeate enters bipolar membrane electrodialysis membrane stack and is circulated, and reclaims the Fructus Vitis viniferae that the naoh that obtains of alkali room and sour room obtain
Saccharic acid；The mass fraction of described sodium gluconate permeate is 40%, and temperature is 50 DEG C, hardness 30mg/l, float
0.5mg/l, electrical conductivity is 30ms/cm, remaining sugar concentration 0.8%.
2. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
When the salt room electrical conductivity of solution of bipolar membrane electrodialysis membrane stack is less than 300ms/cm, sodium gluconate permeate end loop.
3. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
The conducting medium being used for connecting between film group device and membrane electrode in the pole room of Bipolar Membrane is na2so4Solution, mass concentration is 5%.
4. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
Prefilter aperture be 20 μm.
5. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
Prefilter in filtrate be fibrous nodules, the raw material of fibrous nodules is high hydroformylation dimension synthetic fibre and set polyester fibre.
6. a kind of gluconic acid according to claim 5 bipolar membrane electrodialysis method production technology it is characterised in that: described
Fibrous nodules sphere diameter 25-30mm, ball density 1.2-1.3kg/m3, packing density 75-80kg/m3.
7. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
The flow velocity of prefilter is 8-10m/h.
8. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
Prefilter, when sodium gluconate is more than 0.08mpa by the pressure drop of filter element, filter element is carried out.
9. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: described
The operation temperature of microfilter is 20-40 DEG C, and pressure is 0.1-0.5mpa.
10. a kind of gluconic acid according to claim 1 bipolar membrane electrodialysis method production technology it is characterised in that: institute
The membrane aperture of the microfilter stated is 0.1-0.2 μm.
A kind of bipolar membrane electrodialysis method production technology of 11. gluconic acids according to claim 1 it is characterised in that: institute
During the bipolar membrane electrodialysis stated, the flow of sodium gluconate is 50-200l/h.
A kind of bipolar membrane electrodialysis method production technology of 12. gluconic acids according to claim 1 it is characterised in that: institute
The bipolar membrane electrodialysis impressed DC voltage stated, magnitude of voltage is 100-150v, and current value is 80-120a.
A kind of bipolar membrane electrodialysis method production technology of 13. gluconic acids according to claim 1 it is characterised in that: institute
The alkali room of the bipolar membrane electrodialysis stated, the initial concentration of alkali liquor is 20g/l.
A kind of bipolar membrane electrodialysis method production technology of 14. gluconic acids according to claim 1 it is characterised in that: institute
After the bipolar membrane electrodialysis stated terminate, the alkali liquor mass concentration of alkali room is 5-8%, and the gluconic acid mass concentration of sour room is 25-
50%.
A kind of bipolar membrane electrodialysis method production technology of 15. gluconic acids according to claim 1 it is characterised in that: institute
In the membrane stack stated, effective membrane area of single film is 0.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349384.8A CN104328452B (en) | 2014-07-22 | 2014-07-22 | Producing technology of gluconic acid through bipolar membrane electrodialysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349384.8A CN104328452B (en) | 2014-07-22 | 2014-07-22 | Producing technology of gluconic acid through bipolar membrane electrodialysis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104328452A CN104328452A (en) | 2015-02-04 |
| CN104328452B true CN104328452B (en) | 2017-02-01 |
Family
ID=52403256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410349384.8A Active CN104328452B (en) | 2014-07-22 | 2014-07-22 | Producing technology of gluconic acid through bipolar membrane electrodialysis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104328452B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385129B (en) * | 2018-03-29 | 2020-04-10 | 碳能科技（北京）有限公司 | Preparation method of formic acid |
| CN110407688A (en) * | 2019-08-20 | 2019-11-05 | 安徽省兴宙医药食品有限公司 | A kind of method that fermentation liquid directly processes gluconic acid |
| CN110698439B (en) * | 2019-10-08 | 2021-08-17 | 浙江新和成股份有限公司 | Process for preparing D-pantolactone by bipolar membrane method |
| CN110904465A (en) * | 2019-10-22 | 2020-03-24 | 新疆中泰创新技术研究院有限责任公司 | Device and method for treating byproduct mirabilite of viscose factory |
| CN111172205A (en) * | 2019-12-31 | 2020-05-19 | 浙江赛蓝膜科技股份有限公司 | Method for producing gluconolactone by using bipolar membrane electrodialysis device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904829A (en) * | 1997-08-18 | 1999-05-18 | Ppg Industries, Inc. | Method of converting amine hydrohalide into free amine |
| JP2002309391A (en) * | 2001-04-11 | 2002-10-23 | Tokuyama Corp | Cysteine and method of preparing cysteine mineral acid salt |
| CN102002725A (en) * | 2010-09-30 | 2011-04-06 | 杭州水处理技术研究开发中心有限公司 | Bipolar membrane device for producing gluconic acid |
-
2014
- 2014-07-22 CN CN201410349384.8A patent/CN104328452B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904829A (en) * | 1997-08-18 | 1999-05-18 | Ppg Industries, Inc. | Method of converting amine hydrohalide into free amine |
| JP2002309391A (en) * | 2001-04-11 | 2002-10-23 | Tokuyama Corp | Cysteine and method of preparing cysteine mineral acid salt |
| CN102002725A (en) * | 2010-09-30 | 2011-04-06 | 杭州水处理技术研究开发中心有限公司 | Bipolar membrane device for producing gluconic acid |
Non-Patent Citations (3)
| Title |
|---|
| BPM2型双极膜装置在葡萄糖酸生产中的应用研究;金可勇 等;《水处理技术》;20101031;第36卷(第10期);第105-108页 * |
| 双极膜法制备葡萄糖酸工业化生产研究;金可勇 等;《水处理技术》;20111130;第37卷(第11期);第60-62页 * |
| 发酵法乳酸精制技术研究进展;李卫星 等;《化工进展》;20091231;第28卷(第3期);第491-495页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104328452A (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104328452B (en) | Producing technology of gluconic acid through bipolar membrane electrodialysis method | |
| Pal et al. | Process intensification in lactic acid production: A review of membrane based processes | |
| Waszak et al. | The ultrafiltration ceramic membrane used for broth separation in membrane bioreactor | |
| CN101774707A (en) | Recovery processing method of protein waste water | |
| CN102978250B (en) | Method for producing Gamma-aminobutyric acid through centrifugal mother liquid of glutamic acid | |
| CN102597253A (en) | Process for economically manufacturing xylose from hydrolysate using electrodialysis and direct recovery method | |
| CN101265179B (en) | Technique for purifying lactate | |
| Mancinelli et al. | Nano-filtration and ultra-filtration ceramic membranes for food processing: A mini review | |
| CN101195652A (en) | Method for recycling protein and lactose from milk product wastewater | |
| CN107484934A (en) | A kind of orange juice preparation method and system based on membrane technology | |
| CN102659612A (en) | Process for purifying L-phenylalanine | |
| CN102001763A (en) | Production method for desalting seawater by de-hardening preprocessing | |
| CN109052796A (en) | A kind of high-COD waste water treatment zero draining technique with high salt and device | |
| CN106282419A (en) | A kind of Caulis Sacchari sinensis juice purification process in Closed Circulation in Sugar Production | |
| CN110078241A (en) | The processing system and method for biogas slurry after a kind of vinasse anaerobic fermentation | |
| CN104773882A (en) | Process for recycling acrylic wastewater | |
| CN103130664A (en) | Process method of extracting gamma-aminobutyric acid through membrane separation technique | |
| CN101870639A (en) | Method for producing kelp mannitol with low energy consumption | |
| Gryta et al. | Microfiltration of post-fermentation broth with backflushing membrane cleaning | |
| CN105439347B (en) | A kind of mother liquor treatment process and system for the concentration of clopyralid feed separation | |
| CN104313633B (en) | A kind of Bipolar Membrane method prepares the production technology of gluconic acid | |
| CN108409050B (en) | Zero-emission treatment process for high-salinity wastewater | |
| CN206051730U (en) | A kind of system using various membrane technology recycling treatment kelp processing waste water | |
| CN104086409A (en) | Process for producing gluconic acid by use of bipolar membrane electrodialysis method | |
| CN106676931B (en) | A kind of fully separating method of black liquid component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |