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Triethyl Phosphate|Flame Retardant TEP|78-40-0

信息来源: 张家港雅瑞化工有限公司  时间:2017/6/29 14:51:37 

Triethyl Phosphate|Flame Retardant TEP|78-40-0

First, The Product Basic Information

Triethylphosphate; Triethyl Phosphate; Triethoxy Phosphate; Triethyl Phosphate, 98 +%; Triethyl Phosphate, 99 +%; Triethyl Phosphate; Flammable TEP

Chinese Name: 磷酸三乙酯,阻燃剂TEP

CAS No.: 78-40-0

Molecular Formula: C6H15O4P

Molecular Weight: 182.15

EINECS Number: 201-114-5

Traits: Colorless Transparent Liquid

Water%: ≤0.20

Color (APHA): ≤ 20

Content (GC%): ≥99.5%

Acid Value (MgKOH / G): ≤0.05

Specific Gravity (20 ° C / 4 ° C): 1.069-1.073

Refractive Index (ND20): 1.4050-1.4070

Raw Materials: To Phosphorus Oxychloride And Ethanol-Based, Two-Step Esterification Synthesis.

Triethyl Phosphate Packaging: Net Weight 200KG / Galvanized Iron Drum (A Small Cabinet To Play With 16 Tons), 1000KG / IB Barrel (A Small Cabinet 18 Tons) or 23 Tons ISOTANK.


Second, Product Use

Triethyl Phosphate Is A High Boiling Solvent, Rubber And Plastic Plasticizer, But Also A Catalyst. It Is Also Used As A Raw Material For The Preparation Of Pesticide Insecticides For Use As An Ethylating Agent For The Production Of Ketene.

(1) Catalyst: Xylene Isomer Catalyst; Polymerization Catalyst For Olefin; Catalyst For Producing Tetraethyl Lead; Catalyst For Making Carbodiimide; Substitution Reaction Catalyst For Trialkyl Boron And Olefin; Dehydrogenation Of Acetic Acid To Produce Ethylene Ketone; A Catalyst For The Polymerization Of Styrene With Conjugated Dienes; If Used In The Polymerization Of Terephthalic Acid And Ethylene Glycol, There Is A Role In Preventing Discoloration Of The Fibers.

(2) Solvent: Solvent Of Nitrocellulose And Cellulose Acetate; Solvent Used To Maintain The Life Of The organic Peroxide Catalyst; Solvent For Dispersing Ethylene Fluoride; Peroxide Agent For Curing Resin Of Polyester Resin And Epoxy Resin And Thinner.

(3) Stabilizer: Chlorine-Based Insecticide And Stabilizer; Stabilizer Of Phenolic Resin; Solid Agent Of Sugar Alcohol Resin.

(4) Synthetic Resin: Curing Agent For Xylenol Formaldehyde Resin; Softener For Phenolic Resin Used In Shell Mold; Softener For Vinyl Chloride; Plasticizer For Vinyl Acetate Polymer; Flame Retardant Of Polyester Resin Agent.

(5) Triethyl Phosphate (Flame Retardant TEP) Is A High Boiling Point Solvent, Rubber And Plastic Plasticizer, But Also For The Preparation Of Pesticide Pesticide Raw Materials For Ethylation Reagents And Ketene Production. In Japan, 70% Of The Product Is Used For The Catalyst.


Third, The Production Process

(1) From Phosphorus Trichloride, Ethanol And Sodium Acetate Role In The Preparation

(1) The Preparation Of Diethyl Phosphonium Chloride, Phosphorus Trichloride Mixed With Toluene, Stirring By Adding Anhydrous Ethanol, Humidity Control At 30-40 ℃ After Adding To Continue Stirring For 0.5h, The Reaction To Produce Diethyl Phosphite. Followed By Further Dropping Of Dichlorosulfonyl, The Humidity Control Is Carried Out At 30-40 ° C Under Reduced Pressure To Remove Excess Dichloroacyl Chloride, And The Residue Is Diethyl Chlorophosphate.

② Preparation Of Triethyl Phosphate, The Ethanol Solution Of Sodium Ethoxide Was Added To The Reaction Kettle, And Diethyl Chlorophosphate Was Added Dropwise Under Stirring. The Humidity Was Controlled Below 70 ℃, The PH Was Adjusted To 7-8 With Sodium Ethoxide And Acetic Acid, Add After Stirring 4h. Then Add Cold Water, Stir Evenly And Then Add Toluene, Continue Stirring For Some Time, Standing Stratification, Extraction Of The Upper Oil, Dried With Anhydrous Carbonic Acid, Filtered And Recovered Toluene, And Then Vacuum Distillation, Collecting 72-88 ℃ / 0.4 -0.667MPa Of The Product, That Was Finished.

(2) 100 ML (1.07 Mol) Of Phosphorus Oxychloride Was Charged Into A 250 ML Four-Necked Flask Equipped With A Stirrer And Cooled With Ice Brine To Less Than 15 ° C Then, 92 ML (1.60 Mol) Of Ethanol Was Added Dropwise Under Vacuum. To Another 1000 ML Four-Necked Flask Equipped With A Stirrer, 550 ML (9.63 Mol) Of Ethanol Was Added And The Product Was Added Dropwise Under Normal Pressure. The Reaction Mixture Was Cooled With Ice-Salt Water To Ensure That The Reaction Humidity Was Less Than 15 ° C. The Reaction Mixture Was Heated At 0.098 MPa Ethanol Recovery. Control The Distillation Humidity Less Than 55 ° C The Recovered Ethanol Was Applied To Esterification 2, And The Remaining Product Was Neutralized With A Liquid Base To Give A PH Of 6-7, Extracted And Distilled To Obtain 165.05 G Of Finished Product. Process Parameters: Phosphorus Oxychloride: Ethanol = 1: 9 (Mol), Reaction Humidity 15 ℃ Reaction Time 1.5h; Product Yield Of About 82%.

(3) Preparation Of Diethyl Chlorophosphate Phosphorus Trichloride Mixed With Toluene, Stirring By Adding Anhydrous Ethanol, The Temperature Control At 30 ~ 40 ℃, After Adding To Continue Stirring For 0.5h, The Reaction Of The Formation Of Diethyl Phosphite Ester. Followed By Further Dropping Of Dichlorosulfonyl, The Temperature Control At 35 ° C, After Adding Added Ethanol And Stirring 1h, To Maintain The Temperature At 30 ~ 40 ℃, Under Reduced Pressure To Remove Excess Dichloroyl Chloride, The Residue That Is Chlorophosphate Diethyl Ester.

(4) Preparation Of Triethyl Phosphate Tep Ethanolate Solution Was Added To The Reaction Kettle, And Diethyl Chlorophosphate Was Added Dropwise Under Stirring. The Temperature Was Controlled At 70 ° C or Lower, And The PH Was Adjusted To 7 ° C With Sodium Ethoxide And Acetic Acid. 8, Add After Mixing 4h. And Then Adding Cold Water, Stirring Evenly After Adding Toluene, Stirring For Some Time, Standing Stratification, Extraction Of The Upper Oil, Dried With Anhydrous Potassium Carbonate, Filtered And Recovered Toluene, And Then Vacuum Distillation, Collecting 72 ~ 88 ℃ / 0.4 ~ 0.0667MPa Of The Product, That Was Finished.


Export Essential Information

Chinese Name: Triethyl Phosphate

English Name: Triethyl Phosphate

Traits: Colorless Transparent Liquid

The Most Important Indicators Of The Product:

Chroma ≤20

Moisture ≤0.20

Acid Value ≤0.05

Content ≥99.5%

Cas Number: 78-40-0

Customs Code HS: 29199000

Tax Rebate: The Current Triethyl Phosphate Flame Retardant TEP Tax Rebate Of 9%

Raw Materials: To Phosphorus Oxychloride And Ethanol-Based, Two-Step Esterification Synthesis.

Belong To Several Types Of Dangerous Goods: The Current Triethyl Phosphate TEP Is A General Cargo Exports, Not Dangerous Goods.

Packing: Net Weight 200KG / Galvanized Iron Drum (A Small Counter To Play With 16 Tons), 1000KG / IB Barrel (A Small Cabinet Installed 18 Tons) or 23 Tons ISOTANK.

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