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Table 1 Basic strength and basicity of KCC-n catalysts

From: Preparation of diethylene glycol monomethyl ether monolaurate catalyzed by active carbon supported KF/CaO

Catalyst

Basic strength (H-)

Basicity (mmol/g)

Yield (%)a

KCC-0.5

7.2 < H  < 9.8

0.32

23.0

KCC-1.0

7.2 < H  < 9.8

1.36

68.2

KCC-1.5

9.8 < H  < 15.0

1.82

85.6

KCC-2.0

9.8 < H  < 15.0

2.24

96.3

KCC-2.5

9.8 < H  < 15.0

2.28

97.0

KCC-3.0

9.8 < H  < 15.0

2.30

97.3

  1. aReaction condition: the amount of catalyst 5.0 %,reaction time 30 min, molar ratio of DGME/ML of 4.0, reaction temperature of 75 °C