WO2004087580A1 - Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems - Google Patents
Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems Download PDFInfo
- Publication number
- WO2004087580A1 WO2004087580A1 PCT/IN2003/000116 IN0300116W WO2004087580A1 WO 2004087580 A1 WO2004087580 A1 WO 2004087580A1 IN 0300116 W IN0300116 W IN 0300116W WO 2004087580 A1 WO2004087580 A1 WO 2004087580A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- peg
- phase
- recovery
- rich
- separation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/02—Polyalkylene oxides
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to the process for the separation and recovery of polyethylene glycol (PEG) from spent aqueous two-phase systems (ATPSs).
- PEG polyethylene glycol
- the present invention more particularly relates to the recovery of PEG from SPENT aqueous two-phase systems by the application of microwave energy.
- Background of the invention Extraction using aqueous two-phase systems (ATPS) is finding widespread application in separation, concentration, and purification of biological products such as proteins/enzymes, viruses, cells and other biomaterials from fermentation broth and cell culture media.
- Use of ATPE quite essentially reduces the water load, removal of cell debris, polysaccharides, nucleic acids etc. and reduces the number of subsequent processing steps.
- the main object of the present invention is to provide a process for the separation and recovery of PEG from spent ATPSs.
- Another object of the present invention is to exploit the application of microwave field coupled with hot air drying for PEG recovery from ATPSs.
- Still another object of the present invention is to provide a faster economic method for the separation and recovery of PEG from ATPSs completely. Yet another object of the present invention is to facilitate the easier separation of industrially important biomolecules. Summary of the invention
- the present invention provides a process for the separation and recovery of PEG from spent aqueous two-phase systems, which comprises (as shown in Figure 1) a) Separation of PEG-rich top phase from spent ATPS . b) The separated PEG-rich phase is subjected to microwave field in an microwave oven (4) consisting of frequency 900-2450 MHz with an power out put of 175-800 watts. c) The PEG-rich phase is exposed to microwave field for time duration of varying from 1.5-3 minutes, or until the dispersion forms two phases leaving out water to form the bottom phase and the top phase rich in PEG. d) The PEG- rich phase is separated and then dried in hot air oven for a duration of
- FIG. 1 is a schematic representation of the experimental set of the invention. Detailed description of the invention
- the PEG rich top phase is separated from the salt or other polymer rich phase (1) is taken in a separating funnel (2) which is placed over a stand (3) inside an microwave oven (4) which transmits the microwave field from the magnetron (5) at a specified frequency and power intensity to the PEG rich phase (1).
- the PEG rich top phase forms two-phase, wherein only the top PEG-rich phase is separated taken in a petridish and dried in an hot air oven at an temperature of 105°C (6) to obtain dry PEG.
- the process of the invention comprises the separation and recovery of PEG from spent aqueous two-phase systems, which comprises (as shown in Figure 1)
- the separated top PEG rich phase is taken in a separating funnel which is placed over a stand inside a microwave oven.
- the microwave field is applied from the magnetron, till vigorous movement is observed in the PEG rich phase.
- the microwave field is withdrawn and the PEG-rich top phase is allowed to cool at room temperature.
- PEG-rich phase upon cooling separates into two distinct phases, which are then separated and are weighed initially.
- the separated top phase and bottom phase are then dried in hot air oven at 105 C to remove the remaining water. Weights of dried top phase and bottom are noted and compared with initial weights before drying to account for the recovery of PEG.
- the physical properties such as density, viscosity, moisture content of the recovered PEG were estimated as shown in Table 1.
- partition coefficient remained unaffected for the partitioning studies carried out from the phase systems prepared from fresh PEG and recovered PEG. Table 1 Recovery of PEG using microwave field.
- the novelty of the present invention is that the application of microwave field results in dipole rotation of free water molecules present along with the PEG, associated with temperature rise. This increase in temperature makes PEG more hydrophobic, driving the water out from PEG-rich phase. This forms a separate bottom phase along with some amounts of salt getting stripped out from PEG- rich phase. Removal of water from PEG-rich phase enables in the faster recovery of PEG by hot air drying at an comparably less time duration with less energy consumption.
- Example 1 are given by way of illustration of the present invention and therefore should not be constructed to limit the scope of the present invention.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Hydrology & Water Resources (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Sustainable Development (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Polyethers (AREA)
- Epoxy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB038264099A CN100418897C (en) | 2003-03-31 | 2003-03-31 | Process for separation and recovery of polyethylene glycol (PEG) from spent aqueous two-phase systems |
BR0318257A BR0318257B1 (en) | 2003-03-31 | 2003-03-31 | process for the separation and recovery of polyethylene glycol from an aqueous biphasic waste system. |
PCT/IN2003/000116 WO2004087580A1 (en) | 2003-03-31 | 2003-03-31 | Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems |
JP2004570085A JP4611032B2 (en) | 2003-03-31 | 2003-03-31 | Method for separating and recovering polyethylene glycol (PEG) from spent aqueous two-phase systems |
AU2003226636A AU2003226636A1 (en) | 2003-03-31 | 2003-03-31 | Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems |
DE10394224T DE10394224B4 (en) | 2003-03-31 | 2003-03-31 | Process for the separation and recovery of polyethylene glycol (PEG) from spent aqueous two-phase systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2003/000116 WO2004087580A1 (en) | 2003-03-31 | 2003-03-31 | Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004087580A1 true WO2004087580A1 (en) | 2004-10-14 |
Family
ID=33104965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2003/000116 WO2004087580A1 (en) | 2003-03-31 | 2003-03-31 | Process for separation and recovery of polyethylene glycol (peg) from spent aqueous two-phase systems |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP4611032B2 (en) |
CN (1) | CN100418897C (en) |
AU (1) | AU2003226636A1 (en) |
BR (1) | BR0318257B1 (en) |
DE (1) | DE10394224B4 (en) |
WO (1) | WO2004087580A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113056319A (en) * | 2018-11-19 | 2021-06-29 | 浦项工科大学校产学协力团 | Aqueous solution two-phase system nano-filter and separation method using same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101367955B (en) * | 2008-09-05 | 2011-04-27 | 河北科技大学 | Method for recycling polyglycol from dual-aqueous phase abstraction waste liquor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313786A (en) * | 1979-07-23 | 1982-02-02 | Smith Jerold B | Magnetron solvent recovery system |
US4853507A (en) * | 1988-04-28 | 1989-08-01 | E. I. Dupont De Nemours & Company | Apparatus for microwave separation of emulsions |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61197003A (en) * | 1984-11-26 | 1986-09-01 | カリフオルニア ニツケル コ−ポレ−シヨン | Separation and extraction of non-compatible liquid |
JPH01207101A (en) * | 1988-02-15 | 1989-08-21 | Agency Of Ind Science & Technol | Process and apparatus for producing concentrated liquid |
JPH04231869A (en) * | 1990-06-28 | 1992-08-20 | Nippon Parkerizing Co Ltd | Method for quickly measuring oil and fat component of aqueous emulsion type rolling oil |
JPH06142407A (en) * | 1992-11-13 | 1994-05-24 | Sumitomo Light Metal Ind Ltd | Treatment of emulsion waste liquid |
JPH0810509A (en) * | 1994-06-30 | 1996-01-16 | Mitsubishi Kakoki Kaisha Ltd | Vessel waste oil treatment |
JP2000354704A (en) * | 1999-06-15 | 2000-12-26 | Mitsubishi Heavy Ind Ltd | Treatment of contaminated cleaning liquid and device therefor |
US6623643B2 (en) * | 1999-11-19 | 2003-09-23 | Microtek Medical Holdings, Inc. | Process for treatment of aqueous environments containing a water soluble polymer |
JP2001300206A (en) * | 2000-04-20 | 2001-10-30 | Nippon Zeon Co Ltd | Method and apparatus for removing moisture in organic solvent |
-
2003
- 2003-03-31 WO PCT/IN2003/000116 patent/WO2004087580A1/en active Application Filing
- 2003-03-31 DE DE10394224T patent/DE10394224B4/en not_active Expired - Fee Related
- 2003-03-31 BR BR0318257A patent/BR0318257B1/en active IP Right Grant
- 2003-03-31 CN CNB038264099A patent/CN100418897C/en not_active Expired - Lifetime
- 2003-03-31 AU AU2003226636A patent/AU2003226636A1/en not_active Abandoned
- 2003-03-31 JP JP2004570085A patent/JP4611032B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313786A (en) * | 1979-07-23 | 1982-02-02 | Smith Jerold B | Magnetron solvent recovery system |
US4853507A (en) * | 1988-04-28 | 1989-08-01 | E. I. Dupont De Nemours & Company | Apparatus for microwave separation of emulsions |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113056319A (en) * | 2018-11-19 | 2021-06-29 | 浦项工科大学校产学协力团 | Aqueous solution two-phase system nano-filter and separation method using same |
CN113056319B (en) * | 2018-11-19 | 2022-11-22 | 浦项工科大学校产学协力团 | Aqueous solution two-phase system nano-filter and separation method using same |
Also Published As
Publication number | Publication date |
---|---|
CN100418897C (en) | 2008-09-17 |
BR0318257B1 (en) | 2011-11-29 |
JP4611032B2 (en) | 2011-01-12 |
JP2006521912A (en) | 2006-09-28 |
AU2003226636A1 (en) | 2004-10-25 |
BR0318257A (en) | 2006-05-23 |
CN1771200A (en) | 2006-05-10 |
DE10394224B4 (en) | 2007-08-30 |
DE10394224T5 (en) | 2007-04-12 |
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