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Table 4 Results of 2,6-DMP synthesis from mixture phenol:methanol:water in molar ratio 1:5:1

From: Selective phenol methylation to 2,6-dimethylphenol in a fluidized bed of iron-chromium mixed oxide catalyst with o-cresol circulation

Temperature of bed

Conversion of phenol [%]

Selectivity of 2,6-DMP [%]

Selectivity of o-krezol [%]

Yield of 2,6-DMP [%]

310°C

63.50

25.56

73.05

15.62

320°C

76.06

38.57

60.49

29.84

330°C

86.19

54.72

44.23

48.03

340°C

90.18

64.08

34.42

60.39

350°C

92.17

65.58

31.63

62.90

360°C

93.63

64.08

31.19

56.62

370°C

92.83

56.69

36.79

49.05

  1. Feed flows: 64.1 mmol/h of phenol, 320.5 mmol/h of methanol and 64.1 mmol/h of water, Pressure: 1 atm.