ChemicalBook CAS DataBase List 2,6-DIMETHYLNAPHTHALENE

2,6-DIMETHYLNAPHTHALENE synthesis

8synthesis methods

Product Name:2,6-DIMETHYLNAPHTHALENE
CAS Number:581-42-0
Molecular formula:C12H12
Molecular Weight:156.22

67-56-1 Synthesis

67-56-1
757 suppliers
$7.29/5ml-f

91-57-6
252 suppliers
$13.00/5g

581-42-0
164 suppliers
$50.00/1 g

Yield:581-42-0 99%

Reaction Conditions:

at 395; under 45004.5 Torr;Heating;Temperature;Pressure;

Steps:

1 Embodiment 1
The methanol and methyl naphthalene respectively in entering the device by the tank farm, methanol in the tank with the naphthalene are respectively composed of two multi-stage centrifugal pump after being drawn out pressurized mixed, pressure control in the 6 mpa, after sent to the heating furnace.Access gas mixed material heating, heating to the 395 °C after, mixing material enters into the reaction in the reactor, the reaction temperature is controlled in the 395 °C, reaction pressure is controlled at 6 mpa, reaction space velocity control in the 0.5h -¹.Reaction of 2, 6 - dimethylnaphthalene (2,6 - DMN) discharged from the bottom of the reactor, the feed methanol and methylnaphthalene mixed material to carry out heat exchanging, after the heat exchange the temperature of the 2, 6 - dimethylnaphthalene 280 °C, mixed raw material temperature 85 °C, exchanging the heat of the product in the high-pressure air cooler temperature, and then enters the cold high pressure separator, and then enters the cold low-pressure separator, to obtain 2, 6 - dimethylnaphthalene. 2. 6 - dimethylnaphthalene yield is 99%, purity is 99%.

References:

Hainan Handi Sunshine Petrochemical Co., Ltd.;Wang, Hao;Zhu, Haiyi;Cao, Tong;Hou, Lishan;Huang, Songyun;Wang, Dongsheng;Lin, Tianhong;Wu, Huijie;Lin, Yunshan;Liu, Chao CN106359371, 2017, A Location in patent:Paragraph 0043-0054

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