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Dichloromethane/Dimethyl carbonate (DMC) production plant
Chemical Industry Turnkey Project
Dimethyl carbonate (DMC) plants.jpg

Dichloromethane/Dimethyl carbonate (DMC) production plant

Dimethyl carbonate (DMC) plants based on the PO process mainly produce DMC with 1,2-propanediol (PG) as a byproduct. DMC plants using the urea process mainly produce DMC with liquid ammonia as a byproduct. As an eco-friendly raw material, DMC can be used to produce various high-value-added fine chemicals, widely applied in pharmaceuticals, pesticides, synthetic materials, dyes, lubricant additives, flavor enhancers and electronic chemicals.

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Manufacturing capability

  1. A green chemical process with 100% atomic utilization rate,Effectively reducing the discharge of three wastes, with low investment and high output.
  2. Effectively recycling carbon dioxide for reuse, in line with international trends
  3. The process reaction conditions are mild, the equipment requirements are simple, and the chemical process is relatively safe
  4. The product is green, non-toxic, and has a wide range of applications
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3
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01

Production application

Propylene Carbonate

Electrolyte solvents for lithium batteries, Oil solvents, spinning solvents, olefin and aromatic hydrocarbon extractants, carbon dioxide absorbents,Dispersants for water-soluble dyes and pigments,Used for the production of DMC by ester exchange method.

Dimethyl carbonate (DMC)

Electrolyte solvents for lithium batteries,Raw materials for polycarbonate,Raw materials for developing solution,Intermediate of pesticides and pharmaceuticals,Solvent for paints, coatings, and adhesives,Used for oil additives and solid phosgene industry.

Propylene Glycol:

Food industry(Raw materials for the production of food emulsifiers, solvents for spices and food coloring, and also used in the preparation of seasonings and coloring,Industry(An important raw material for producing unsaturated polyester, epoxy resin, polyurethane resin, and also used for manufacturing glass paper, plasticizers, and antifreeze agents),Pharmaceutical industry(The solvents, softeners, and excipients used in the manufacture of ointments and ointments. Production of injection solutions, eye drops, oral liquids, etc),Others(Widely used as a wetting agent, lubricant, mold inhibitor, preservative, antifreeze, and heat carrier).

Technical Parameter

No.

Item

Index

Electronic grade

Premium grade

First grade

1

Dimethyl carbonate(DMC)，w/%  ≥

99.99

99.9

99.5

2

Methanol，w/%       ≤

0.002

0.020

0.050

3

Water，w/%          ≤

0.003

0.020

0.10

4

Density（20℃）/(g/cm3)

1.071±0.005

5

Sodium/(μ g/ml)   ≤

1

 

 

6

Potassium/(μ g/ml) ≤

1

 

 

7

Copper/(μ g/ml)   ≤

1

 

 

8

Iron/(μ g/ml)      ≤

1

 

 

9

Lead/(μ g/ml)     ≤

1

 

 

10

Zinc/(μ g/ml)      ≤

1

 

 

11

Chromium/(μ g/ml) ≤

1

 

 

12

Nickel/(μ g/ml)    ≤

1

 

 

Product method

  • Propylene carbonate (PC) production by propylene oxide (PO) method 
    The raw material carbon dioxide and propylene oxide are pressurized to synthesize propylene carbonate;
  • Production of propylene carbonate (PC) by urea process
     Urea reacts with propylene glycol to produce propylene carbonate and ammonia.
  • Production of dimethyl carbonate (DMC) by ester exchange
    Under the action of catalyst, methanol and propylene carbonate are generated to form dimethyl carbonate and 1,2-propanediol.

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