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Methylal is an important chemical intermediate for the preparation of high-concentration formaldehyde and acetal resin.
It is widely used in cosmetics, medicines, pesticides, leather polishes, detergents, rubber industry, paints, inks and other products
.
At the same time, because of its good degreasing ability and volatility, it can replace F11 and F113 and chlorine-containing solvents as a cleaning agent, and can replace Freon, and is recommended as a new environmentally friendly solvent by the National Environmental Protection Agency
.
? Methanol one-step selective oxidation synthesis of methylal technology breaks through the traditional methanol-formaldehyde condensation process, develops a new type of fixed bed process route that uses cheap coal-based methanol as raw material to directly oxidize methylal in one step, and uses environmentally friendly acidic zeolites And V/Ti-based catalyst, air is used as oxidant to directly convert methanol into methylal with high selectivity
.
? Previously, the traditional synthesis process mainly used methanol and formaldehyde as raw materials for homogeneous synthesis under the action of acidic inorganic salt (such as sulfuric acid, sulfate) catalysts, cation exchange resins or aluminosilicates and other solid acid catalysts
.
Due to the limitations of raw materials, catalyst corrosion and activity, and synthesis process, its production costs and social costs remain high, making it difficult to achieve large-scale applications
.
This technology innovatively develops methanol direct air oxidation one-step method to obtain methylal with high selectivity.
The product separation process is simple and the production cost is low.
It is an energy-saving and environmentally-friendly new process, which is important for the expansion and improvement of China's methanol downstream industrial chain technology.
The socio-economic significance of
.
It is widely used in cosmetics, medicines, pesticides, leather polishes, detergents, rubber industry, paints, inks and other products
.
At the same time, because of its good degreasing ability and volatility, it can replace F11 and F113 and chlorine-containing solvents as a cleaning agent, and can replace Freon, and is recommended as a new environmentally friendly solvent by the National Environmental Protection Agency
.
? Methanol one-step selective oxidation synthesis of methylal technology breaks through the traditional methanol-formaldehyde condensation process, develops a new type of fixed bed process route that uses cheap coal-based methanol as raw material to directly oxidize methylal in one step, and uses environmentally friendly acidic zeolites And V/Ti-based catalyst, air is used as oxidant to directly convert methanol into methylal with high selectivity
.
? Previously, the traditional synthesis process mainly used methanol and formaldehyde as raw materials for homogeneous synthesis under the action of acidic inorganic salt (such as sulfuric acid, sulfate) catalysts, cation exchange resins or aluminosilicates and other solid acid catalysts
.
Due to the limitations of raw materials, catalyst corrosion and activity, and synthesis process, its production costs and social costs remain high, making it difficult to achieve large-scale applications
.
This technology innovatively develops methanol direct air oxidation one-step method to obtain methylal with high selectivity.
The product separation process is simple and the production cost is low.
It is an energy-saving and environmentally-friendly new process, which is important for the expansion and improvement of China's methanol downstream industrial chain technology.
The socio-economic significance of
.
