CN101613302B - Method for separating acrylamide prepared by microbial method from impurities - Google Patents
Method for separating acrylamide prepared by microbial method from impurities Download PDFInfo
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- CN101613302B CN101613302B CN2009101157409A CN200910115740A CN101613302B CN 101613302 B CN101613302 B CN 101613302B CN 2009101157409 A CN2009101157409 A CN 2009101157409A CN 200910115740 A CN200910115740 A CN 200910115740A CN 101613302 B CN101613302 B CN 101613302B
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- acrylamide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to a method for separating acrylamide prepared by microbial method and impurities. The technical proposal is as follows: acrylamide solution mixed with impurities enters an inner chamber of a discharge auger through a liquor inlet, the inner chamber of the discharge auger is communicated with a cavity by a liquor outlet, and the cavity is arranged between a rotor drum and the discharge auger; a motor drives the discharge auger to rotate, the acrylamide solution mixed with impurities is discharged from the liquor outlet, the impurities are discharged to an inner wall of the rotor drum for accumulation, a scraper is arranged on an outer wall of the discharge auger, and the scraper which rotates with the discharge auger gathers and scraps the impurities accumulated on the inner wall of the rotor drum to a heaver phase outlet for discharge; and light acrylamide liquid separated from the impurities is discharged from a light phase outlet. The process for producing acrylamide can help solve the disadvantages of membrane irresistibility to pressure, easy filth blockage, easy loss and high cost during membrane separation, and prevent environmental pollution from most bacteria, thus achieving goals of energy saving and emission reduction, and energy saving and consumption reduction.
Description
Technical field
The present invention relates to the separation method of a kind of acrylamide and impurity.The particularly acrylamide produced of microbial method and the separation method of impurity.
Background technology
Acrylamide has multiple production method.It is the best way of present suitability for industrialized production acrylamide that microbial method generates acrylamide, utilize this technique Main Problems to be: adopting at present membrane separation technique separation of acrylamide and thalline is main impurity, but because mould material is not withstand voltage, easily dirty stifled when separating thallus and acrylamide, thereby reduced the flux of film, increased disengaging time.While is also easily broken, thereby can't guarantee the quality of acrylamide product.In addition, in the post-processed to thalline, membrane technique also can't separate thalline effectively, causes most of microorganism that environment is produced and pollutes, and has increased the pressure of environmental protection.
Summary of the invention
The object of the present invention is to provide a kind of acrylamide of microbial method production and the separation method of impurity.
Technical scheme of the present invention is: the acrylamide that microbial method is produced and the separation method of impurity, wherein: the acrylamide soln that is mixed with impurity enters the inner chamber of discharge auger by liquor inlet, the inner chamber of discharge auger communicates with cavity by material liquid outlet, and cavity is between rotary drum and discharge auger; The rotation of driven by motor discharge auger, the acrylamide soln that is mixed with impurity throws away from material liquid outlet, impurity is thrown on the inwall of rotary drum to be piled up, on the outer wall of discharge auger, scraper is installed, the impurity of piling up on the inwall of scraper with rotary drum with discharge auger rotation is gathered to collect to scrape to the heavy out place and is discharged; Acrylamide light liquid after separating impurity phase exit is on the lenient side discharged.
Separation factor is 2500-5000.
Adopt process for producing acrylamide of the present invention to solve to utilize in membrane sepn that film is not withstand voltage, easy defectives such as dirty stifled, easily loss, expense height, can prevent most of microorganism to the pollution problem of environment simultaneously, reach energy-saving and emission-reduction, energy-saving and cost-reducing purpose.
The invention has the advantages that: omitted membrane filtration step, simplified production unit and technique, reduced production cost.Improved working efficiency.Centrifugal by bundled tube, thalline can be separated effectively, reduced the pollution of microorganism to environment.
Relevant contrast effect is as follows:
| Separate mode | Infiltration type | Centrifugal |
| Separating effect | Membrane sepn | The present invention |
| The impurity of coliform mycelial solid state is after processing | Greater than 1% | Less than 0.1% |
| Residual quantity in solution by weight |
| Rotating speed | The present invention program 1 3000rpm | The present invention program 2 6000rpm |
| Thalline residual treatment packed moisture | General 80-95% | Good 5-10% |
| Equipment does not need duration of service of cleaning | 6-12 month | 60 months |
| Separation factor | The present invention program 3 3000 | The present invention program 4 5000 |
| The acrylamide treatment effect: foreign matter content is | General 0.04% | 0.01% |
Description of drawings
Accompanying drawing 1 is process structure schematic diagram of the present invention.
Reference numeral: liquor inlet 1, scraper 2, motor 3, material liquid outlet 4, rotary drum 5, discharge auger 6, overflow plate 7, light phase export 8, heavy out 9.
Embodiment
The acrylamide that embodiment 1, microbial method are produced and the separation method of impurity, wherein: the acrylamide soln that is mixed with impurity enters the inner chamber of discharge auger 6 by liquor inlet 1, the inner chamber of discharge auger 6 communicates with cavity by material liquid outlet 6, and cavity is between rotary drum 5 and discharge auger 6; Motor 5 drives discharge auger 6 rotations, the acrylamide soln that is mixed with impurity throws away from material liquid outlet 4, impurity is thrown on the inwall of rotary drum 5 to be piled up, scraper 2 is installed on the outer wall of discharge auger 6, and the impurity of piling up on the inwall of scraper 2 with rotary drum 5 with discharge auger 6 rotation is gathered to collect to scrape to heavy out 9 places and is discharged; Acrylamide light liquid after separating impurity is discharged from light phase export 8.
The impurity that wherein is mixed with is the impurity of solid state as leading take similar coliform mycelia, and the general concentration of the acrylamide soln of the impurity that is mixed with is at 20-35%, and remaining is water and 10% following mycelium impurity.The mycelia impurity of piling up on the inwall of scraper 2 with rotary drum 5 with discharge auger 6 rotation is gathered to collect to scrape to heavy out 9 places and is discharged; Acrylamide light liquid after separating impurity is discharged from light phase export 8.
The acrylamide that embodiment 2, microbial method are produced and the separation method of impurity, wherein: at the front installation overflow plate 7 of light phase export 8.All the other are with embodiment 1.The effect of overflow plate 7 is the time lengthening that can allow material separate in rotary drum 5, to reach better separating effect.
The acrylamide that embodiment 3, microbial method are produced and the separation method of impurity, wherein: the radius of overflow plate 7 is 10 millimeters.All the other are with embodiment 2.
The acrylamide that embodiment 4, microbial method are produced and the separation method of impurity, wherein: the radius of overflow plate 7 is 70 millimeters.All the other are with embodiment 2.
The acrylamide that embodiment 5, microbial method are produced and the separation method of impurity, wherein: the radius of overflow plate 7 is 30 millimeters.All the other are with embodiment 2.
The acrylamide that embodiment 6, microbial method are produced and the separation method of impurity, wherein: rotary drum 5 rotating speeds are at 3000rpm.All the other are with embodiment 1.
The acrylamide that embodiment 7, microbial method are produced and the separation method of impurity, wherein: rotary drum 5 rotating speeds are at 20000rpm.All the other are with embodiment 1.
The acrylamide that embodiment 8, microbial method are produced and the separation method of impurity, wherein: rotary drum 5 rotating speeds are at 6000rpm.All the other are with embodiment 1.
The acrylamide that embodiment 9, microbial method are produced and the separation method of impurity, wherein: separation factor is greater than 2500.All the other are with embodiment 1.
The acrylamide that embodiment 10, microbial method are produced and the separation method of impurity, wherein: separation factor is 2500.All the other are with embodiment 1.
The acrylamide that embodiment 11, microbial method are produced and the separation method of impurity, wherein: separation factor is 3000.All the other are with embodiment 1.
The acrylamide that embodiment 12, microbial method are produced and the separation method of impurity, wherein: separation factor is 5000.All the other are with embodiment 1.
Principle of work: thalline carries out as biological catalyst the acrylamide solution that the hydration of catalyzing propone nitrile generates, and squeezes in a storage tank by pump, and the acrylamide soln slave unit liquor inlet 1 of the impurity that is mixed with enters in discharge auger 6, under running up.Feed liquid throws away from material liquid outlet 4.By the viscosity characteristics different with difference in specific gravity of thalline and acrylamide, thalline directly is thrown on rotary drum 5 walls to be piled up.Shifting thalline onto heavy out 9 by the scraper 2 on discharge auger 6 discharges automatically.Then acrylamide soln discharges from light phase export 8 by being blocked in of overflow plate 7 is fully centrifugal in rotary drum 5.
Thalline after separation can be recycled to and again participates in reaction in reactor, perhaps can do harmless treatment.Acrylamide soln after purification can be used for subsequent processing, perhaps is used as to reclaim.
Claims (1)
1. the acrylamide produced of microbial method and the separation method of impurity, wherein: the acrylamide soln that is mixed with impurity enters the inner chamber of discharge auger (6) by liquor inlet (1), the inner chamber of discharge auger (6) communicates with cavity by material liquid outlet (4), and cavity is positioned between rotary drum (5) and discharge auger (6); Motor (3) drives discharge auger (6) rotation, the acrylamide soln that is mixed with impurity throws away from material liquid outlet (4), impurity is thrown on the inwall of rotary drum (5) to be piled up, scraper (2) is installed on the outer wall of discharge auger (6), and the impurity of piling up on the inwall of scraper (2) with rotary drum (5) with discharge auger (6) rotation is gathered to collect to scrape to heavy out (9) and is located to discharge; Acrylamide light liquid after separating impurity is discharged from light phase export (8); The impurity that wherein is mixed with is the impurity of solid state as leading take similar coliform mycelia, and the general concentration of the acrylamide soln of the impurity that is mixed with is at 20-35%, and remaining is water and 10% following mycelium impurity; The mycelia impurity of piling up on the inwall of scraper (2) with rotary drum (5) with discharge auger (6) rotation is gathered to collect to scrape to heavy out (9) and is located to discharge; Acrylamide light liquid after separating impurity is discharged from light phase export (8); At the front installation overflow plate of light phase export (8) (7); The radius of overflow plate (7) is 30 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101157409A CN101613302B (en) | 2009-07-22 | 2009-07-22 | Method for separating acrylamide prepared by microbial method from impurities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101157409A CN101613302B (en) | 2009-07-22 | 2009-07-22 | Method for separating acrylamide prepared by microbial method from impurities |
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| Publication Number | Publication Date |
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| CN101613302A CN101613302A (en) | 2009-12-30 |
| CN101613302B true CN101613302B (en) | 2013-06-12 |
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| CN2009101157409A Expired - Fee Related CN101613302B (en) | 2009-07-22 | 2009-07-22 | Method for separating acrylamide prepared by microbial method from impurities |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586730A (en) * | 2004-10-13 | 2005-03-02 | 吴培钧 | Horizontal screw centrifugal machine |
| CN200981023Y (en) * | 2006-12-01 | 2007-11-28 | 谢合钧 | Spiral material-pushing decanter type centrifugal machine |
-
2009
- 2009-07-22 CN CN2009101157409A patent/CN101613302B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586730A (en) * | 2004-10-13 | 2005-03-02 | 吴培钧 | Horizontal screw centrifugal machine |
| CN200981023Y (en) * | 2006-12-01 | 2007-11-28 | 谢合钧 | Spiral material-pushing decanter type centrifugal machine |
Non-Patent Citations (3)
| Title |
|---|
| 李志东 等.微生物法生产丙烯酰胺的研究进展.《长春理工大学学报》.2006,第29卷(第3期),91-95. * |
| 郭振友 等."双膜分离提纯法"在微生物法丙烯酰胺生产中的应用.《现代化工》.2008,第28卷(第2（增刊）期),174-176. |
| 郭振友 等."双膜分离提纯法"在微生物法丙烯酰胺生产中的应用.《现代化工》.2008,第28卷(第2(增刊)期),174-176. * |
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| CN101613302A (en) | 2009-12-30 |
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