n-Butyl allophanate → Dibutyl carbonate

HRID 278526

반응식

HRID 278526 반응식
[C:1]([O:7][CH2:8][CH2:9][CH2:10][CH3:11])(=[O:6])NC(N)=O>C(O)CCC>[C:1](=[O:6])([O:7][CH2:8][CH2:9][CH2:10][CH3:11])[O:7][CH2:8][CH2:9][CH2:10][CH3:11]

참가 물질

3

반응물 1

HCID 5315565n-Butyl allophanate

생성물 1

HCID 68333Dibutyl carbonate

시약·촉매·용매 1

HCID 2631-Butanol용매

반응 조건

온도
5 °C

실험 절차

The operation was performed for 80 hours in the same apparatuses and procedure as in Example 1 except that butyl allophanate was cooled to 5° C. to deposit in a settling vessel equipped in a lower portion of condenser of distillation column 18 and only butanol was returned to reactor 1 via conduit pipe 22. But, in order to remove butyl allophanate, procedures to withdraw butyl allophanate from the settling vessel every one hour and filter out it from butanol became necessary. The feed rate of urea in a steady state was 73.3 mol/hr, whereas the production rate of dibutyl carbonate to be obtained via reaction liquid withdrawing pipe 14 was 71.1 mol/hr (97.0 mol % to fed urea).

후처리

  1. customwas returned to reactor
  2. customBut, in order to remove butyl allophanate, procedures
  3. customto withdraw butyl allophanate from the settling vessel every one hour
  4. filtrationfilter out it from butanol

출처 및 근거

ORD 기록
ord-8f18f770af6a4ed885989ede7beb133e
출처 데이터셋
uspto-grants-2002_03
특허 번호
US06359163B2

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