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

 

Hubei Sanli Fengxiang Technology Co., Ltd

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Main Products:Methyl Acetate Plant, Phenol Alkylation Technology, Phenol Purification Technology, Distillation Technology, MMA Plant, MEG Plant, Hydrogen Peroxide Plant

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