Title:
METHOD FOR PRODUCING N-VINYLFORMAMIDE
Document Type and Number:
WIPO Patent Application WO/2018/084177
Kind Code:
A1
Abstract:
A method for producing N-vinylformamide through a vapor-phase thermal decomposition reaction using an evaporator (10) for evaporating a raw material, a thermal decomposition reactor (20) for thermally decomposing a raw material gas generated by the evaporator (10) and a condenser (30) for condensing a thermally decomposed gas generated by the thermal decomposition reactor (20), wherein the evaporation of the raw material is started in the evaporator (10) while the temperature of a tube wall of a first connection tube (40) that connects the evaporator (10) to the thermal decomposition reactor (20) satisfies a requirement represented by formula (1): (temperature of tube wall (°C)) ≥ 0.37 × (pressure of evaporator (mmHg)) + 205.
Inventors:
OOISHI NORITSUGU (JP)
TERAMOTO KOUJI (JP)
MORI YASUHARU (JP)
TERAMOTO KOUJI (JP)
MORI YASUHARU (JP)
Application Number:
PCT/JP2017/039532
Publication Date:
May 11, 2018
Filing Date:
November 01, 2017
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07C231/12; C07C233/03
Foreign References:
| JPH05301851A | 1993-11-16 | |||
| JPH03181451A | 1991-08-07 | |||
| JPH03181452A | 1991-08-07 | |||
| JP2012140392A | 2012-07-26 |
Other References:
See also references of EP 3536682A4
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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