Top Purity Fluorene

Details:

Used as raw materials for organic synthesis. It can be made into trinitrofluorenone for electrostatic copying; Synthetic aryl transparent nylon; It can replace anthraquinone to synthesize indanthrine dye. Used for the manufacture of anti-spasmodic drugs, sedative Chemicalbook drugs, analgesics, lowering blood pressure drugs; Synthetic insecticides, herbicides; Preparation of impact resistant plexiglass and fluorenal resin; Can also be used as wetting agent, detergent, liquid flash agent, disinfectant, etc.

Used for making medicine and dyes; Synthetic insecticides and herbicides; Preparation of impact resistant plexiglass and fluorenal resin; Used as wetting agent, detergent, liquid flash agent, disinfectant, etc

Production methodprocess:Fluorene in high temperature tar contains about 1.0-2.0%. The fluorene fraction at 290-310℃ was cut from the oil washing fraction, and a distillation column equivalent to 115 theoretical trays was used for precise fractionation. The reflux ratio was 15:1, and the narrow fraction at 292-302℃ was cut. By cooling, Chemicalbook crystallization, centrifugal separation, get crude fluorene, and then with 1:25 benzene or xylene recrystallization, get industrial fluorene. The industrial fluorene was dissolved in benzene, washed with 40% sulfuric acid, then neutralized with water, dissolubized, the fluorene was redistilled, and the distillate was recrystallized with gasoline and ethanol to obtain pure fluorene with a purity of 95%.