Title:
DISTILLATION PURIFICATION METHOD AND DEVICE FOR HIGH-MELTING ORGANIC MATERIALS
Document Type and Number:
WIPO Patent Application WO/2002/053250
Kind Code:
A1
Abstract:
A method of distilling and purifying high-melting materials while preventing corrosion of the device, contamination of the distillate and degeneration; and a device used therefor. The distillation purification device comprises an evaporating section (A) for evaporating high-melting organic materials subsequently to melting thereof, and collecting sections (B, C) for condensing and collecting the evaporated gas, the temperature of the collecting sections being substantially stepwise or continuously decreasing toward the downstream side, at least the evaporating section and part of the collecting section being made of a material that can be heated through electromagnetic induction by an dielectric coil, the inner surface of the device contacting high-melting organic materials being made of a material that is inert to such high-melting organic materials. Effecting distillation using this distillation purification device makes it possible to selectively collect only the intended substance in the collecting sections held at a specific temperature by electromagnetic induction; thus, a product of high purity can be obtained at a high yield.
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Inventors:
MATSUO SHINJI (JP)
ISHII KAZUO (JP)
MIYAZAKI HIROSHI (JP)
ISHII KAZUO (JP)
MIYAZAKI HIROSHI (JP)
Application Number:
PCT/JP2001/011191
Publication Date:
July 11, 2002
Filing Date:
December 20, 2001
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL CO (JP)
MATSUO SHINJI (JP)
ISHII KAZUO (JP)
MIYAZAKI HIROSHI (JP)
MATSUO SHINJI (JP)
ISHII KAZUO (JP)
MIYAZAKI HIROSHI (JP)
International Classes:
H05B6/10; B01D1/00; B01D1/30; B01D3/00; C07B63/00; C07C209/84; C07C211/58; H05B6/26; (IPC1-7): B01D3/00; C07B63/00; C07C209/84; C07C211/58
Foreign References:
| JPH09103602A | 1997-04-22 | |||
| JP2000093701A | 2000-04-04 | |||
| JPS6017337A | 1985-01-29 | |||
| JPH10273741A | 1998-10-13 | |||
| US5338518A | 1994-08-16 |
Attorney, Agent or Firm:
Naruse, Katsuo (Central Shinbashi Bldg. 11-5, Nishi-shinbashi 2-chom, Minato-ku Tokyo, JP)
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