CN110437060A - The method of lactic acid is recycled in a kind of production of phytic acid - Google Patents
The method of lactic acid is recycled in a kind of production of phytic acid Download PDFInfo
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- CN110437060A CN110437060A CN201910681698.0A CN201910681698A CN110437060A CN 110437060 A CN110437060 A CN 110437060A CN 201910681698 A CN201910681698 A CN 201910681698A CN 110437060 A CN110437060 A CN 110437060A
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- Prior art keywords
- lactic acid
- ultrafiltration
- ultrafiltration membrane
- membrane
- temperature
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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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
Abstract
The present invention relates to the methods that lactic acid is recycled in a kind of production of phytic acid, it is characterized by: (1) lactic acid leaching liquor obtains ultrafiltration membrane permeate A with macromolecular ultrafiltration membrance filter, molecular cut off 3000 ~ 20000 Dalton, 0.1 ~ 0.5MPa of pressure, 1 ~ 70 DEG C of temperature, speed 30 ~ 100L/(㎡ * h)；(2) ultrafiltration membrane permeate A is obtained into ultrafiltration membrane permeate B, molecular cut off 800 ~ 2000 Dalton, 0.3 ~ 1.0MPa of pressure, 1 ~ 70 DEG C of temperature, speed 10 ~ 30L/(㎡ * h with small molecule ultrafiltration membrance filter)；(3) ultrafiltration membrane permeate B is obtained into nanofiltration membrane permeate C with nanofiltration membrane, as recycling lactic acid, 150 ~ 500Dalton of molecular cut off, 0.5 ~ 3.0MPa of pressure, 1 ~ 70 DEG C of temperature, speed 10 ~ 30L/(㎡ * h).The invention has the advantages that filtering to lactic acid leaching liquor high temperature membrane, purification and recovery, there is economic benefit, while reducing sewage treatment load, there is environmental benefit；For the membrane separation technique of use without adding medicament, pollution-free, noresidue is a kind of green environmental protection technique.
Description
Technical field
The invention belongs to biomedicine field, it is related to extracting the technical field of phytic acid in a kind of grain, and in particular to a plant
The method of lactic acid is recycled in acid production.
Technical background
Phytic acid is that one kind is widely present in organic phosphorus compound in grain kind skin, and chemical name is six phosphate of cyclohexanol, is planted
The unique physiology of acid, pharmacological function make its medicine, chemical industry, daily-use chemical industry, light industry, food, health care, metallurgy, weaving, plastics,
The fields such as printing, Treatment of Metal Surface, lipid-antioxidant activity are extremely widely applied.
Phytic acid has several different preparation methods: one kind is formed using inositol and Phos as raw material chemistry, but industry at present
Upper common extraction method is to extract phytic acid from grain by-product, by extraction, separation, neutralization, precipitating, acidification, purifying, bipolar
Film, electrodialysis, separating-purifying removal of impurities, obtain High-purity Phytic Acid.And the lactic acid leaching liquor used in phytic acid extraction process, then it is more
The great wasting of resources as liquid waste processing, is on the one hand caused, the load of sewage treatment has on the other hand also been aggravated.
Summary of the invention
The purpose of the present invention is to solve the problem of the waste of lactic acid leaching liquor, provide a kind of phytic acid in the production of existing phytic acid
The method of lactic acid is recycled in production.
To achieve the goals above, The technical solution adopted by the invention is as follows:
The method of lactic acid is recycled in a kind of production of phytic acid, it is characterised in that include the following steps:
(1) ultrafiltration membrane removal of impurities clarification
The lactic acid leaching liquor generated in extracting from phytic acid uses the ultrafiltration membrance filter of macromolecular, and the ultrafiltration membrane is ceramic membrane
Or periosteum, molecular cut off are 3000 ~ 20000 Dalton, operating pressure is 0.1 ~ 0.5MPa, temperature is 1 ~ 70 DEG C, crosses filtering velocity
Degree is 30 ~ 100L/(㎡ * h), high molecular weight protein, cellulose and the insoluble substance in lactic acid leaching liquor are intercepted in ultrafiltration membrane
In concentrate, lactic acid, water and salinity etc. enter in ultrafiltration membrane permeate A；
(2) ultrafiltration membrane decolourizes
The ultrafiltration membrane permeate A obtained in step (1) is used to the ultrafiltration membrance filter of small molecule, the ultrafiltration retaining molecular weight
For 800 ~ 2000 Dalton, operating pressure is 0.3 ~ 1.0MPa, temperature is 1 ~ 70 DEG C, the rate of filtration is 10 ~ 30L/(㎡ * h),
Will transmit through the lesser albumen of molecular weight in liquid A, polysaccharide and most of pigment to intercept in ultrafiltration membrane concentrate, lactic acid, water and
Part salinity etc. enters in ultrafiltration membrane permeate B；
(3) nanofiltration membrane is decolourized
The ultrafiltration membrane permeate B obtained in step (2) is used into nanofiltration membrane, the nanofiltration retaining molecular weight is 150 ~
500Dalton, operating pressure is 0.5 ~ 3.0MPa, temperature is that 1 ~ 70 DEG C of rate of filtration is 10 ~ 30L/(㎡ * h), it will transmit through liquid B
In pigment and most of salt intercept in ultrafiltration membrane concentrate, lactic acid, water and fraction salinity etc. enter nanofiltration membrane permeate C
In, gained nanofiltration membrane permeate C is lactic acid recovered liquid, can be back to the extraction workshop section of phytic acid extraction.
Further, the ultrafiltration retaining molecular weight is preferably the ultrafiltration membrane retention of 3000 ~ 5000 Dalton, small molecule
Molecular weight is 800 ~ 1200Dalton, the nanofiltration retaining molecular weight is 300 ~ 500Dalton.
Further, step (1) the ultrafiltration membrane removal of impurities clarification preferred operations pressure is 0.3 ~ 0.5 MPa, temperature is 30 ~ 50
DEG C, the rate of filtration be 20 ~ 30L/(㎡ * h), step (2) ultrafiltration membrane decolourize preferred operations pressure be 0.5 ~ 0.8MPa, temperature 30
~ 50 DEG C, the rate of filtration be 10 ~ 20L/(㎡ * h), step (3) nanofiltration membrane decolourize preferred operations pressure be 1.0 ~ 2.0MPa, temperature
It is 10 ~ 20L/(㎡ * h for 30 ~ 50 DEG C, the rate of filtration).
Advantages of the present invention: the present invention to the previous lactic acid leaching liquor as liquid waste processing use high temperature (1 ~ 70 DEG C) film into
Row filtering (high temperature can be improved the rate of filtration and can be cleaned with high temperature pure water when cleaning, and recovery effects are more preferably), purification and recovery,
With economic benefit, while the load of sewage treatment is reduced, there is apparent environmental benefit；The UF membrane used in the present invention
For technology without adding medicament, pollution-free, noresidue is a kind of green environmental protection technique.
Detailed description of the invention
Fig. 1 is the process diagram that lactic acid is recycled in a kind of production of phytic acid.
Specific embodiment
In conjunction with Fig. 1, the present invention is further described, the method that lactic acid is recycled in a kind of production of phytic acid, specific implementation
Steps are as follows:
Embodiment 1
1, the lactic acid leaching liquor 20t(generated in extracting from phytic acid contains 40% lactic acid) it (is cut using ceramic membrane or periosteum filtering
Staying molecular weight is 5000 Dalton), operating pressure 0.4MPa, operation temperature be 30 DEG C, rate of filtration 3.2t/h, filtering
Ultrafiltration membrane permeate A 19.2t is obtained after the completion；
2, the 19.2t ultrafiltration membrane permeate A obtained in step 1 is filtered into (molecular cut off using the rolling ultrafiltration membrane of small molecule
For 800 Dalton), operating pressure 0.8MPa, operation temperature be 32 DEG C, rate of filtration 3.0t/h, is obtained after the completion of filtering
Ultrafiltration membrane permeate B 18.4t；
3, the 18.4t ultrafiltration membrane permeate B obtained in step 2 is used into nanofiltration membrane (molecular cut off 300
Dalton), operating pressure 1.5MPa, operation temperature be 35 DEG C, rate of filtration 3.0t/h, obtain nanofiltration membrane after the completion of filtering
Permeate C, that is, lactic acid recovered liquid 17.6t, lactic acid concn 37%.
Delicatessen food grade lactic acid price is about 10000 yuan/ton (contents 80%), the lactic acid of 1 ton of 37% concentration of every recycling, quite
In 4625 yuan of costs of recycling.
Embodiment 2
1, the lactic acid leaching liquor 15t(generated in extracting from phytic acid contains 40% lactic acid) it (is cut using ceramic membrane or periosteum filtering
Staying molecular weight is 5000 Dalton), operating pressure 0.4MPa, operation temperature be 32 DEG C, rate of filtration 3.4t/h, filtering
Ultrafiltration membrane permeate A 14.2t is obtained after the completion；
2, the 14.2t ultrafiltration membrane permeate A obtained in step 1 is filtered into (molecular cut off using the rolling ultrafiltration membrane of small molecule
For 800 Dalton), operating pressure 0.8MPa, operation temperature be 35 DEG C, rate of filtration 3.3t/h, is obtained after the completion of filtering
Ultrafiltration membrane permeate B 13.3t；
3, the 13.3t ultrafiltration membrane permeate B obtained in step 2 is used into nanofiltration membrane (molecular cut off 300
Dalton), operating pressure 1.5MPa, operation temperature be 36 DEG C, rate of filtration 3.2t/h, obtain nanofiltration membrane after the completion of filtering
Permeate C, that is, lactic acid recovered liquid 12.6t, lactic acid concn 37%.
Claims (3)
1. recycling the method for lactic acid in a kind of phytic acid production, it is characterised in that include the following steps:
(1) ultrafiltration membrane removal of impurities clarification
The lactic acid leaching liquor generated in extracting from phytic acid uses the ultrafiltration membrance filter of macromolecular, and the ultrafiltration membrane is ceramic membrane
Or periosteum, molecular cut off are 3000 ~ 20000 Dalton, operating pressure is 0.1 ~ 0.5MPa, temperature is 1 ~ 70 DEG C, crosses filtering velocity
Degree is 30 ~ 100L/(㎡ * h), high molecular weight protein, cellulose and the insoluble substance in lactic acid leaching liquor are intercepted in ultrafiltration membrane
In concentrate, lactic acid, water and salinity etc. enter in ultrafiltration membrane permeate A；
(2) ultrafiltration membrane decolourizes
The ultrafiltration membrane permeate A obtained in step (1) is used to the ultrafiltration membrance filter of small molecule, the ultrafiltration retaining molecular weight
For 800 ~ 2000 Dalton, operating pressure is 0.3 ~ 1.0MPa, temperature is 1 ~ 70 DEG C, the rate of filtration is 10 ~ 30L/(㎡ * h),
Will transmit through the lesser albumen of molecular weight in liquid A, polysaccharide and most of pigment to intercept in ultrafiltration membrane concentrate, lactic acid, water and
Part salinity etc. enters in ultrafiltration membrane permeate B；
(3) nanofiltration membrane is decolourized
The ultrafiltration membrane permeate B obtained in step (2) is used into nanofiltration membrane, the nanofiltration retaining molecular weight is 150 ~
500Dalton, operating pressure is 0.5 ~ 3.0MPa, temperature is that 1 ~ 70 DEG C of rate of filtration is 10 ~ 30L/(㎡ * h), it will transmit through liquid B
In pigment and most of salt intercept in ultrafiltration membrane concentrate, lactic acid, water and fraction salinity etc. enter nanofiltration membrane permeate C
In, gained nanofiltration membrane permeate C is lactic acid recovered liquid, can be back to the extraction workshop section of phytic acid extraction.
2. the method for lactic acid is recycled in a kind of phytic acid production according to claim 1, it is characterised in that: the ultrafiltration membrane retention
Molecular weight be preferably 3000 ~ 5000 Dalton, small molecule ultrafiltration retaining molecular weight be 800 ~ 1200 Dalton, described receive
Membrane retention molecular weight is 300 ~ 500 Dalton.
3. the method for lactic acid is recycled in a kind of phytic acid production according to claim 1, it is characterised in that: the step (1) is super
Filter membrane removal of impurities clarification preferred operations pressure is 0.3 ~ 0.5MPa, temperature is 30 ~ 50 DEG C, the rate of filtration is 20 ~ 30L/(㎡ * h), step
Suddenly (2) ultrafiltration membrane decoloration preferred operations pressure is 0.5 ~ 0.8MPa, temperature is 30 ~ 50 DEG C, the rate of filtration is 10 ~ 20L/(㎡ *
H), step (3) nanofiltration membrane decoloration preferred operations pressure is 1.0 ~ 2.0MPa, temperature is 30 ~ 50 DEG C, the rate of filtration is 10 ~ 20L/
(㎡ * h).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681698.0A CN110437060A (en) | 2019-07-26 | 2019-07-26 | The method of lactic acid is recycled in a kind of production of phytic acid |
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| CN201910681698.0A CN110437060A (en) | 2019-07-26 | 2019-07-26 | The method of lactic acid is recycled in a kind of production of phytic acid |
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| CN201910681698.0A Withdrawn CN110437060A (en) | 2019-07-26 | 2019-07-26 | The method of lactic acid is recycled in a kind of production of phytic acid |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999744A (en) * | 2006-12-25 | 2007-07-18 | 刘津平 | Process of mfg. lactic acid or poly lactic acid by industry and agriculture waste or by-products containing sugar |
| CN101838287A (en) * | 2010-05-27 | 2010-09-22 | 合肥工业大学 | Method for circularly extracting phytic acid from lactic acid assisted by ultrasonic waves |
| CN205865827U (en) * | 2016-06-15 | 2017-01-11 | 赛普特环保技术(厦门)有限公司 | Concentrated retrieval and utilization device of whey liquid desalination |
| CN108275791A (en) * | 2018-01-09 | 2018-07-13 | 惠州市合新科技有限公司 | A kind of milk product waste recovery method |
-
2019
- 2019-07-26 CN CN201910681698.0A patent/CN110437060A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999744A (en) * | 2006-12-25 | 2007-07-18 | 刘津平 | Process of mfg. lactic acid or poly lactic acid by industry and agriculture waste or by-products containing sugar |
| CN101838287A (en) * | 2010-05-27 | 2010-09-22 | 合肥工业大学 | Method for circularly extracting phytic acid from lactic acid assisted by ultrasonic waves |
| CN205865827U (en) * | 2016-06-15 | 2017-01-11 | 赛普特环保技术(厦门)有限公司 | Concentrated retrieval and utilization device of whey liquid desalination |
| CN108275791A (en) * | 2018-01-09 | 2018-07-13 | 惠州市合新科技有限公司 | A kind of milk product waste recovery method |
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Application publication date: 20191112 |
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