WO2007129724A1 - 結晶スラリーの処理方法 - Google Patents
結晶スラリーの処理方法 Download PDFInfo
- Publication number
- WO2007129724A1 WO2007129724A1 PCT/JP2007/059573 JP2007059573W WO2007129724A1 WO 2007129724 A1 WO2007129724 A1 WO 2007129724A1 JP 2007059573 W JP2007059573 W JP 2007059573W WO 2007129724 A1 WO2007129724 A1 WO 2007129724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crystal
- slurry
- organic solvent
- cake
- washing
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
- B01D9/0045—Washing of crystals, e.g. in wash columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/56—Ring systems containing bridged rings
- C07C2603/58—Ring systems containing bridged rings containing three rings
- C07C2603/70—Ring systems containing bridged rings containing three rings containing only six-membered rings
- C07C2603/74—Adamantanes
Definitions
- the present invention relates to a solid-liquid separation of a slurry obtained by crystallizing a target product from a liquid containing an organic component.
- a cake is produced by centrifugation, and then the produced cake is washed with an organic solvent.
- the present invention relates to a method for treating crystal slurry by centrifugal washing. More specifically, in a centrifugal separation process in which a slurry obtained by crystallizing a target product from a liquid containing an organic component is subjected to solid-liquid separation of the crystal and the mother liquor, the mother liquor encapsulated in the adhering mother liquor and crystals using an organic solvent is removed.
- the present invention relates to a method for treating a crystal slurry by centrifugal washing that can reduce the residual amount of solvent in crystals obtained by efficient washing and separation to 1% by mass or less.
- the crystal slurry is crystallized using a drum filter, a centrifuge, a horizontal belt filter or the like. Separated from the mother liquor and dried in the drying step.
- Patent Document 1 adamantanes obtained by isomerizing trimethylene norbornane are precipitated by crystallization operation, and the obtained crystallization liquid is filtered by a general method using sintered metal or the like,
- a method for producing high-purity adamantanes is disclosed, in which the obtained crude adamantanes are washed with a washing solvent after being subjected to solid-liquid separation treatment by vacuum filtration, centrifugation, or the like.
- the cleaning liquid is supplied to the back of the filter medium to fill it, and the crystals deposited on the back of the filter medium are dissolved and recovered.
- a cleaning method in a filtering machine is disclosed.
- the residual amount of organic solvent in the resulting crystal is less than 1% by mass by efficiently washing and separating the attached mother liquor and the mother liquor contained in the crystal using an organic solvent. Therefore, the result of centrifugal cleaning that eliminates the need for a drying process There is no known method for treating crystal slurry.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2004-59510
- Patent Document 2 JP-A-7-47209
- the present invention has been made in order to solve the problems under the circumstances as described above, and in a centrifugal separation process for solid-liquid separation of a slurry obtained by crystallizing a target product from a liquid containing an organic component, To provide a method for treating a crystal slurry that can produce a cake by centrifugation and then wash the produced cake with an organic solvent to reduce the residual amount of the organic solvent in the crystal to 1% by mass or less. With the goal.
- the present invention provides:
- the organic solvent is selected from methanol, ethanol, propanol, butanol, acetone, ethyl methyl ketone, and petroleum hydrocarbon compounds having a boiling point of 55 to 100 ° C.
- the residual amount of the organic solvent in the treated crystal is 0.05 to:!% By mass of any one of the above (1) to (4), the method for treating a crystal slurry according to item 1,
- the present invention in a centrifugal separation process in which a slurry obtained by crystallization of a target product from a liquid containing an organic component is solid-liquid separated, a cake is produced by centrifugation, and then the produced cake is converted into organic It is possible to provide a crystal slurry treatment method in which the residual amount of the organic solvent in the crystals can be reduced to 1% by mass or less by centrifugal washing using a solvent.
- the method for treating a crystal slurry by centrifugal cleaning according to the present invention is a method in which a cake is first formed by centrifugation in a centrifugal separation process in which a slurry obtained by crystallizing a target product from a liquid containing organic components is solid-liquid separated. Then, the produced cake is washed with an organic solvent.
- the crystal obtained by crystallization has a hardness that is not crushed by the centrifugal force of the centrifugal separator and has a low porosity.
- the organic crystal is not particularly limited as long as it is an organic crystal that does not swell or hardly swells with an organic solvent, and an adamantane crystal can be preferably mentioned.
- the crystal grain size is not particularly limited, but is preferably an average grain size of 100 ⁇ or more.
- the centrifugal cleaning device used for centrifugal cleaning of the crystal slurry of the present invention is not particularly limited as long as it has a structure capable of cleaning a cake centrifuged with an organic solvent, and is obtained by crystallization first.
- the resulting slurry is subjected to solid-liquid separation by centrifugation, and then an organic solvent is sprayed on the flowing crystal cake to wash away the mother liquor and the mother liquor and impurities incorporated in the crystal aggregates. , Remove the solvent and remove the crystal cake
- the slurry is centrifuged at the first stage to produce a cake, and the two-stage centrifugal washing apparatus for washing the cake produced at the second stage with an organic solvent can be preferably used.
- This is a horizontal continuous centrifuge that can perform continuous processing, has high solid-liquid separation efficiency, is excellent in processing capacity, and has a small installation space, and has a cleaning organic solvent inlet.
- a rotary type having a screw conveyor inside or a decanter having a structure in which the diameter is reduced on the discharge side of the crystal cake is connected in two stages (the second stage is for cleaning) is preferable.
- the CR type decanter manufactured by Tanabe Wiltech Co., Ltd. can be cited as a good example.
- organic solvent used for washing an organic compound having a boiling point of 100 ° C or lower is preferred.
- organic compounds having a boiling point of 30 to 100 ° C are preferred, such as methanol, ethanol, propanol, butanol, acetone, ethylmethylketone, and petroleum hydrocarbons having a boiling point of 0 to 100 ° C.
- examples thereof include one or more organic compounds selected from compounds, for example, ibusol-L (IP-L) (trade name, manufactured by Idemitsu Kosan Co., Ltd.).
- the amount of the organic solvent used for washing is not particularly limited, but about 0.5 to 10 liters per kg of crystal cake fed to the centrifugal washing apparatus is used.
- the crystal cake After washing, the crystal cake is discharged at a high centrifugal force and high speed, which is unique to a centrifuge, so that the crystal cake is dispersed by resistance to gas and the surface area is greatly increased.
- the residual amount of the organic solvent in the crystal cake is 1% by mass or less, particularly 0.05 to 1% by mass, and the liquid has been drained to such an extent that drying in the drying process is substantially unnecessary. It is obtained by.
- the residual amount of the organic solvent in the crystal cake is measured by the following method.
- W1 is the mass of the crystal cake immediately after being discharged (g)
- W2 is the crystal cake immediately after being discharged at a temperature of 40 ° C and pressure lOkPa (absolute pressure) for 24 hours. It is the mass (g) of the crystal cake after being made to stand.
- a part of the separated mother liquor is generally removed from the system in order to suppress the concentration of impurities.
- the remaining part or all of the remaining part can be recycled to the crystallization process.
- NaY Y-zeolite
- This calcined powder was again stirred and suspended in 2000 kg of pure water. 228 kg of ammonium sulfate was added to the slurry, stirred at 95 ° C. for 30 minutes, and then washed by filtration. The obtained washed cake was suspended again in 2000 kg of water, and the same ion exchange operation was continued twice.
- trimethylene norbornane (TMN) at 20 kg / hr, decalin as a diluent solvent at 30 kg / hr, and hydrogen at a hydrogen / TMN molar ratio of 2.5 was started at 300 ° C and 5 MPa. so The isomerization reaction was continuously performed.
- TBN trimethylene norbornane
- the reaction product liquid was concentrated by a 15-stage atmospheric distillation at a tower bottom temperature of 180 ° C. until the adamantane concentration became 30% by mass.
- the concentrated liquid obtained in (2) above was used as a crystallization raw material, 100 kg of which was dissolved, charged into a crystallization tank, and stirred and dissolved at 120 ° C. While continuing to stir, the mixture was cooled to 10 ° C and crystallized to obtain a slurry in which adamantane was precipitated. Next, this slurry was supplied to a horizontal continuous centrifugal washing / cleaning apparatus at 244 kg / hr, and then Ivsol_L (IP_L) (trade name, manufactured by Idemitsu Kosan Co., Ltd.) was supplied at 54 kgZhr as an organic solvent for washing. Solid-liquid separation and washing were performed. The amount of residual solvent in the obtained crystal was 0.1% by mass, and it was a powdery crystal that did not need to be dried substantially.
- Solid-liquid separation was performed according to Example 1 except that a horizontal belt filter was used as the solid-liquid separator. As a result, the amount of residual solvent in the obtained crystals was 5 to 10% by mass, and it was necessary to dry in the drying step.
- a slurry obtained by crystallizing a target product from a liquid containing an organic component is subjected to solid-liquid separation.
- a cake is formed by centrifugation, and then the generated cake is washed with an organic solvent.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07743008A EP2017001A4 (en) | 2006-05-10 | 2007-05-09 | METHOD FOR TREATING A CRYSTAL CLEANING |
| JP2008514504A JPWO2007129724A1 (ja) | 2006-05-10 | 2007-05-09 | 結晶スラリーの処理方法 |
| US12/300,028 US20090194488A1 (en) | 2006-05-10 | 2007-05-09 | Method for treatment of crystal slurry |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-131274 | 2006-05-10 | ||
| JP2006131274 | 2006-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007129724A1 true WO2007129724A1 (ja) | 2007-11-15 |
Family
ID=38667832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/059573 Ceased WO2007129724A1 (ja) | 2006-05-10 | 2007-05-09 | 結晶スラリーの処理方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090194488A1 (ja) |
| EP (1) | EP2017001A4 (ja) |
| JP (1) | JPWO2007129724A1 (ja) |
| KR (1) | KR20090017503A (ja) |
| CN (1) | CN101443112A (ja) |
| TW (1) | TW200803969A (ja) |
| WO (1) | WO2007129724A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015152127A1 (ja) * | 2014-03-31 | 2015-10-08 | 東レ株式会社 | 乳酸の製造方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152342A (zh) * | 2019-05-10 | 2019-08-23 | 苏州星烁纳米科技有限公司 | 一种制备纳米晶的系统及方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6176427A (ja) * | 1984-09-20 | 1986-04-18 | Nippon Steel Chem Co Ltd | アセナフテンの製造方法 |
| JPS626527B2 (ja) * | 1978-12-04 | 1987-02-12 | Idemitsu Kosan Co | |
| JPH0747209A (ja) | 1993-08-06 | 1995-02-21 | Tsukishima Kikai Co Ltd | 濾過機における洗浄方法 |
| JP2004059510A (ja) | 2002-07-30 | 2004-02-26 | Idemitsu Petrochem Co Ltd | 高純度アダマンタン類の製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2724007A (en) * | 1952-07-30 | 1955-11-15 | Exxon Research Engineering Co | Para xylene separation process |
| GB1381724A (en) * | 1971-04-30 | 1975-01-29 | Ici Ltd | Separation process |
| JP4319747B2 (ja) * | 1999-11-26 | 2009-08-26 | 三菱化工機株式会社 | リンス機能付きデカンタ型遠心分離機 |
| EP1538139A4 (en) * | 2002-07-29 | 2007-07-11 | Idemitsu Kosan Co | PROCESS FOR THE PREPARATION OF ADAMANTANES |
| JP2005139105A (ja) * | 2003-11-05 | 2005-06-02 | Idemitsu Kosan Co Ltd | アダマンタン類の製造方法 |
-
2007
- 2007-05-09 WO PCT/JP2007/059573 patent/WO2007129724A1/ja not_active Ceased
- 2007-05-09 EP EP07743008A patent/EP2017001A4/en not_active Withdrawn
- 2007-05-09 KR KR1020087027219A patent/KR20090017503A/ko not_active Withdrawn
- 2007-05-09 US US12/300,028 patent/US20090194488A1/en not_active Abandoned
- 2007-05-09 JP JP2008514504A patent/JPWO2007129724A1/ja active Pending
- 2007-05-09 CN CNA2007800167629A patent/CN101443112A/zh active Pending
- 2007-05-10 TW TW096116664A patent/TW200803969A/zh unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626527B2 (ja) * | 1978-12-04 | 1987-02-12 | Idemitsu Kosan Co | |
| JPS6176427A (ja) * | 1984-09-20 | 1986-04-18 | Nippon Steel Chem Co Ltd | アセナフテンの製造方法 |
| JPH0747209A (ja) | 1993-08-06 | 1995-02-21 | Tsukishima Kikai Co Ltd | 濾過機における洗浄方法 |
| JP2004059510A (ja) | 2002-07-30 | 2004-02-26 | Idemitsu Petrochem Co Ltd | 高純度アダマンタン類の製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2017001A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015152127A1 (ja) * | 2014-03-31 | 2015-10-08 | 東レ株式会社 | 乳酸の製造方法 |
| JPWO2015152127A1 (ja) * | 2014-03-31 | 2017-04-13 | 東レ株式会社 | 乳酸の製造方法 |
| US10501399B2 (en) | 2014-03-31 | 2019-12-10 | Toray Industries, Inc. | Lactic acid manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007129724A1 (ja) | 2009-09-17 |
| KR20090017503A (ko) | 2009-02-18 |
| EP2017001A1 (en) | 2009-01-21 |
| TW200803969A (en) | 2008-01-16 |
| EP2017001A4 (en) | 2010-09-15 |
| CN101443112A (zh) | 2009-05-27 |
| US20090194488A1 (en) | 2009-08-06 |
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