Product Main

Specifications

Technology Introduction:

 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,  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

2

Fuel and Power

 

 

 

2.1

Industrial Water

 

M3/mt of 2,3,6-TMP

3.2

2.2

Circulating Water

Delta t= 8oC

Mt/mt of 2,3,6-TMP

400

2.3

Electricity

380/220V,50HZ

Kwh/mt of 2,3,6-TMP

720

2.4

Steam

Low pressure, saturated steam

Mt/mt of 2,3,6-TMP

2.88

2.5

Instrumental Air

0.7Mpa, dew point -25℃

Nm3/mt of 2,3,6-TMP

3

2.6

Nitrogen

0.7MPa

Nm3/mt of 2,3,6-TMP

3


Phenol Alkylation Technology