1 Metric Ton	FOB Price:USD 3670.0000 -3690.0000

Min.Order :1 Metric Ton
Purity: 99.0%min
Payment Terms : L/C,T/T

Keywords

2-methylbenzoic acid exporter competitive price CAS 118-90-1 2-Toluic acid 118-90-1

Quick Details

Appearance:white powder or flake
Application:mainly used as pharmaceutical and agrochemical intermediate,also used for other organic synthesis
PackAge:25kg/bag
ProductionCapacity:250|Metric Ton|Month
Storage:under normal temperature,dry and cool place
Transportation:

Superiority:

2-methylbenzoic acid exporter competitive price CAS 118-90-1 2-Toluic acid

The preparation methods

[Method 1]

The preparation method is to prepare the finished product by continuous oxidation of o-xylene with air in the presence of cobalt naphthenate catalyst in the oxidation tower under the reaction temperature of 120 ~ 125℃ and pressure of 196 ~ 392kPa.

[Method 2]

It is obtained by catalytic oxidation of o-xylene. Using o-xylene as raw material and cobalt naphthenate as catalyst, o-xylene continuously enters the oxidation tower for air oxidation under the temperature of 120℃ and pressure of 0.245MPa, and the oxidation liquid enters the stripper for concentration, crystallization and centrifuge to get the finished product. The mother liquor was distilled, and the recovery of o-xylene and part of o-methyl benzoic acid was followed by slag discharge. The yield was 74%. It consumes 1300kg of o-xylene (95%) per ton of product.

Details:

Production methods

It is obtained by catalytic oxidation of o-xylene. Using o-xylene as raw material and cobalt naphthenate as catalyst, o-xylene continuously enters the oxidation tower for air oxidation under the temperature of 120℃ and pressure of 0.245MPa, and the oxidation liquid enters the stripper for concentration, crystallization and centrifuge to get the finished product. The mother liquor was distilled, and the recovery of o-xylene and part of o-methyl benzoic acid was followed by slag discharge. The yield was 74%. It consumes 1300kg of o-xylene (95%) per ton of product.

Production method The preparation method

Under the condition of reaction temperature 120 ~ 125℃ and pressure 196 ~ 392kPa, o-xylene was continuously oxidized with air in the presence of cobalt naphthenate catalyst in the oxidation tower, and the finished product could be prepared.