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Mixed Fuel DME Dimethyl Ether Liquid Solvent methylating agent for pharmaceutical

Product Details

Place of Origin: Shandong China

Brand Name: JIURUNFA

Certification: ISO9001

Model Number: DEM

Payment & Shipping Terms

Minimum Order Quantity: 1T

Price: Negotiable

Packaging Details: 50kg/100kg cylinders or ISO tanks

Delivery Time: 7-15 Days

Payment Terms: L/C,D/A,D/P,T/T

Supply Ability: 100000T

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Product Details

Product Description

Product Details

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                                                                                                                                                                                                                                                                                                                DME Dimethyl Ether methylating agent, pharmaceutical DME Dimethyl Ether, dimethyl ether solvent methylating agent
                              

Density:	0.664 G/cm3	Molecular Weight:	46.07 G/mol
Vapor Pressure:	5.5 Bar At 20 °C	Autoignition Temperature:	200 °C
Melting Point:	-141.5 °C	Chemical Formula:	C2H6O
Flammability:	Highly Flammable	Boiling Point:	-24.8 °C

Density:	0.664 G/cm3
Molecular Weight:	46.07 G/mol
Vapor Pressure:	5.5 Bar At 20 °C
Autoignition Temperature:	200 °C
Melting Point:	-141.5 °C
Chemical Formula:	C2H6O
Flammability:	Highly Flammable
Boiling Point:	-24.8 °C

Product Description

Mixed Fuel DME Dimethyl Ether Liquid Solvent Methylating Agent for Pharmaceutical

Product Overview

Dimethyl Ether (DME) is a flammable gas that forms explosive mixtures with air. It poses significant fire and explosion risks when exposed to heat, sparks, flames, or oxidants. With density greater than air, it can spread considerable distances at lower levels and may ignite upon contact with fire sources.

Safety Notice: DME can generate explosive peroxides when exposed to air or light. High heat may increase container pressure, risking rupture and explosion.

Key Applications

Primary use as methylating agent for dimethyl sulfate production
Synthesis of N,N-dimethylaniline, methyl acetate, acetic anhydride, and ethylene derivatives
Versatile applications as alkylating agent, refrigerant, foaming agent, and solvent
Used in pharmaceutical, dye, and pesticide industries
Aerosol propellant for personal care products and coatings
Alternative fuel additive and Freon substitute

Chemical Properties

Colorless, easily liquefied gas producing bright flame when burned. Soluble in water, gasoline, carbon tetrachloride, benzene, chlorobenzene, and methyl acetate.

Production Methods

By-Product Method

Primarily obtained as by-product in synthetic methanol production. Modern low-pressure methanol technology yields minimal DME content in crude methanol.

Catalytic Dehydration Methods

Small-scale production utilizes methanol catalytic dehydration:

Liquid Phase: Heating methanol-sulfuric acid mixture
Gas Phase: Methanol vapor passed over alumina or ZSM-5 molecular sieve catalysts

Synthesis Methods

One-Step Synthesis

Direct conversion of syngas to DME in single reactor:

Parameter	Specification
Reaction Principle	Simultaneous methanol synthesis and dehydration
Catalyst	Bifunctional Cu-Zn-Al(O) + alumina/SiO₂-Al₂O₃/zeolite
Temperature	280-340°C
Pressure	0.5-4.2 MPa
Selectivity	>98% DME

Process Advantages: Short flow, reduced equipment investment, high product quality
Representative Processes: Topsøe (Denmark), Air Products LPDME™ (USA), NKK (Japan)

Two-Step Synthesis

Sequential methanol synthesis followed by dehydration:

Stage	Process Characteristics
Methanol Synthesis	Standard syngas conversion using Cu-based catalysts
Dehydration	Gas-phase (zeolite catalysts) or liquid-phase (sulfuric acid) methods

Note: Sulfuric acid method is being phased out due to environmental concerns.

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Contacts: Mr. Sales

Tel: 86-531-88978007

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