Methanol → 2-Methyl-2-butene

HRID 464154Notes

Reaction equation

HRID 464154 reaction equation
[CH3:1][CH:2]=[C:3]([CH3:5])[CH3:4].[CH3:6][OH:7]>>[CH3:1][CH:2]=[C:3]([CH3:5])[CH3:4].[CH3:6][O:7][C:3]([CH2:2][CH3:1])([CH3:5])[CH3:4]

Participants

4

Reactant 2

HCID 887MethanolHCID 105532-Methyl-2-butene

Product 2

HCID 105532-Methyl-2-buteneHCID 61247tert-Amyl methyl ether

Procedure

In the described apparatus runs were carried out using a C5 -cut containing 8.5 w% iso-amylene (2-methyl-butene-1 and 2-methyl-butene-2), 4.250 g/h of C5 -cut were charged through line 10 into reactor stage 13, and 205 g/h of methanol (methanol/isoamylene mole ratio 1.24:1) were charged through line 14, 15, 16, LHSV approx. 2.5 g/h. Using the pumps 20 and 27 the recycle stream was maintained, as before, at 20 1/h each. The reaction pressure was 10 bar, the temperature was 60° C. Under these conditions a 90% conversion of iso-amylene into tert. amyl methyl ether (TAME) was obtained. In the reactor effluent a DME content of 200 ppm was observed.

Workup

  1. additionwere charged through line 14, 15, 16, LHSV approx. 2.5 g/h
  2. temperaturewas maintained
  3. customThe reaction pressure
  4. customwas 60° C

Sources & evidence

ORD record
ord-21125bbaf74f476699ecda03416ac570
Source dataset
uspto-grants-1985_10
Patent number
US04546206

Reaction notes

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