10,000-ton coal-based acetic acid production MMA project successfully started

Recently, the industrial demonstration plant of the 10,000-ton coal-based methanol-acetic acid to methyl methacrylate (MMA) project independently developed by the Institute of Process Engineering of the Chinese Academy of Sciences was successfully put into operation in Hami, Xinjiang.
-The industrial demonstration device for producing MMA from acetic acid, which is also the third effective route to produce MMA with independent intellectual property rights after the isobutylene oxidation method and the ethylene-syngas method independently developed by the team of Zhang Suojiang, an academician of the Chinese Academy of Sciences and a researcher from the Institute of Process Engineering
.

Methyl methacrylate (MMA) is an important organic chemical raw material, mainly used in the synthesis of plexiglass (PMMA), surface coatings, polyvinyl chloride (PVC) modifiers, acrylic fibers and medical functional polymer materials, etc.
The plexiglass it manufactures is widely used in liquid crystal display light guide plates, LED lamps and automotive lenses
.
In addition, high-quality MMA is also an indispensable polymer monomer for the production of aerospace glass, optical fibers, high-performance optical lenses, electronic information devices and other major national strategic materials
.

The coal-based methanol-acetic acid green technology for MMA production developed by the Process Engineering Institute uses methanol and acetic acid as raw materials to obtain MMA products through aldol condensation, hydrogenation and other processes
.
The ionic liquid team of the Institute of Process Engineering designed and developed a uniformly supported aldol condensation hierarchical porous catalyst and large-scale preparation technology, breaking through the problems of low catalyst selectivity and short life; overcame key technologies such as simulated moving bed reaction-regeneration to achieve The long-term stable operation of the aldol condensation reaction was achieved; a new extraction separation technology was developed to solve the separation problem of complex azeotropic systems such as formaldehyde-MMA-water
.
The complete set of technology passed the first set of process safety demonstration in October 2020, with completely independent intellectual property rights, obvious economic advantages, clean process, and green environmental protection
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The successful application of this route has realized the transformation of domestic MMA production from completely relying on petroleum raw materials to coal-based raw materials
.

Construction of the project will begin in 2020.
The first phase of construction of a 10,000-ton/year industrial demonstration plant will be completed in March 2022.
In July, the product was successfully launched.
The next step will be to develop and build a 100,000-ton/year industrial demonstration plant
.
The successful commissioning of this project shows that the coal-based methanol-acetic acid-to-MMA technology developed by Process Engineering is reliable, provides strong technical support for the high-end, differentiated and green development of China's modern coal chemical industry, and will promote the development of new coal chemical materials , to drive the relevant industrial chain and form an industrial cluster
.

10,000-ton coal-based methanol-acetic acid to methyl methacrylate (MMA) project device