Alkyl phenol is produced by the alkylation of phenol by reacting with olefin, aliphatic alcohol, or chloro-hydrocarbon. They are important intermediates for fine chemical synthesis, widely applied in the manufacture of surface active agent, anti-oxidation agent, paint and coating
Alkyl phenol is produced by the alkylation of phenol by reacting with olefin, aliphatic alcohol, or chloro-hydrocarbon. They are important intermediates for fine chemical synthesis, widely applied in the manufacture of surface active agent, anti-oxidation agent, paint and coating. SL TEC offers the technology of phenol’s alkylation into o-cresol, and cresol’s alkylation into 2-t-butyl-p-cresol, 6-t-butyl-m-cresol, 2,6-di-t-butyl-p-cresol, 2,3,6-trimethylphenol (2,3,6-TMP) and etc.
Also SL TEC supplies the technology of producing m-cresol/p-cresol by the isomerization of o-cresol.
Technical Features:
He+reinafter 2,3,6-TMP production technology will be introduced as an example. 2,3,6-TMP is mainly used in pharmaceutical industry to synthesize vitamin E; it is the monomer for the production of thermoresitant PPE engineering plastic and the feedstock for plastic alloy production; also 2,3,6-TMP is the necessary intermediates for the manufacture of some pesticides, disinfectants and etc.
Compared to the process starting from phenol and methanol, SL Tec offers the one-step process starting from m-cresol and methanol under gas phase catalysis. The catalyst is based on Fe2O3, with the conversion of m-cresol reaching 98% and the yield reaching 98%.
Performance:
1. Product Specification of 2,3,6-TMP
|
S/N
|
Item
|
index
|
|
1
|
Appearance
|
Colorless or light yellow solid
|
|
2
|
Purity, % wt
|
99.5
|
|
3
|
Moisture, ≤% wt
|
0.3
|
|
4
|
Density(20/4℃) , kg/L
|
169
|
|
5
|
Melting Point, ℃
|
62.5~64.0
|
2. Specific Consumption
|
S/N
|
Item
|
Specification
|
Unit
|
Consumption Rate
|
|
1
|
RM & Auxiliaries
|
|
|
|
|
1.1
|
m-cresol
|
≥99.5%
|
kg/mt of 2,3,6-TMP
|
840
|
|
1.2
|
Methanol
|
First Grade
|
kg/mt of 2,3,6-TMP
|
980
|
|
1.3
|
Catalyst
|
|
kg/mt of 2,3,6-TMP
|
2.86
|