Palladium on alumina
Cas No: 7440-05-3
Molecular formula: Pd/Al2O3
Appearance: black ball
Carrier: Al2O3
Application scope：
Widely used in pharmaceutical and military industries, chemical synthesis, textile, paper, environmental protection, food and agriculture.
Hydrogen peroxide is a kind of green chemical products, its production and use process almost no pollution, it is called "clean" chemical products, application prospects are very good. Initially, hydrogen peroxide was only used in the pharmaceutical and military industries. Later, it was gradually applied in chemical synthesis, textile, paper making, environmental protection, food and agriculture, and the market demand was expanding day by day.
In 2000, shaanxi kaida started to study on palladium catalyst and its preparation method for producing hydrogen peroxide by anthraquinone method, which solved the problems and technical defects in the technology, including the balance of catalyst activity and sample selection, low strength of catalyst carrier, easy pulverization and crushing, service life and regeneration period of catalyst, etc. The final preparation of palladium catalyst for the production of anthraquinone hydrogen peroxide has a very balanced surface area, pore volume and pore diameter distribution match, and ensures that the overall particle compressive strength of the catalyst is greatly improved, the abrasion value is greatly reduced, the catalyst is not easy to powder, broken, greatly extend the service life and regeneration cycle.
Active alumina is used as catalyst carrier in kaida, shaanxi province. The spherical alumina is formed by adding pore expanding agent asymmetrically. The surface longitudinal distribution of the spherical alumina carrier is asymmetrically distributed along the radial direction of the carrier. It not only ensures the large surface hole and low specific surface area of the catalyst carrier, but also achieves the characteristics of high compressive strength of the catalyst as a whole. The main active component of the catalyst is all-metal palladium. In the process of maintaining the catalysis, the impregnation effect of the active component can be achieved with controllable depth by adjusting the type and amount of the active component positioner before the carrier is sprayed.
In the process of research and development, the company has optimized the preparation of carrier, the impregnation depth of active components and the control of metal dispersion, so that the pore size nonlinear distribution catalyst prepared by the company shows good activity and selectivity in industrial applications, and overcomes various defects of existing technologies.
Before this, palladium catalyst is price is too high to hydrogen peroxide, the main reasons for the application in the field of environmental protection is less palladium catalyst products with high technical content, high barriers to entry, the characteristics of high industry monopoly I can research and development of the project's success, makes the book in the company through the JV project (coal for oil project ") and the implementation of the trial of shaanxi province with palladium catalyst products of the company, not only improves the product yield, and has produced high quality and low price of hydrogen peroxide products, thus effectively break the anthraquinone method of producing hydrogen peroxide with palladium catalyst industry monopoly, greatly reduces the production cost, also can promote more other enterprise production of hydrogen peroxide, Has made the contribution for our country's environmental protection.
In 2000, shaanxi kaida started to study on palladium catalyst and its preparation method for producing hydrogen peroxide by anthraquinone method, which solved the problems and technical defects in the technology, including the balance of catalyst activity and sample selection, low strength of catalyst carrier, easy pulverization and crushing, service life and regeneration period of catalyst, etc. The final preparation of palladium catalyst for the production of anthraquinone hydrogen peroxide has a very balanced surface area, pore volume and pore diameter distribution match, and ensures that the overall particle compressive strength of the catalyst is greatly improved, the abrasion value is greatly reduced, the catalyst is not easy to powder, broken, greatly extend the service life and regeneration cycle.
Active alumina is used as catalyst carrier in kaida, shaanxi province. The spherical alumina is formed by adding pore expanding agent asymmetrically. The surface longitudinal distribution of the spherical alumina carrier is asymmetrically distributed along the radial direction of the carrier. It not only ensures the large surface hole and low specific surface area of the catalyst carrier, but also achieves the characteristics of high compressive strength of the catalyst as a whole. The main active component of the catalyst is all-metal palladium. In the process of maintaining the catalysis, the impregnation effect of the active component can be achieved with controllable depth by adjusting the type and amount of the active component positioner before the carrier is sprayed.
In the process of research and development, the company has optimized the preparation of carrier, the impregnation depth of active components and the control of metal dispersion, so that the pore size nonlinear distribution catalyst prepared by the company shows good activity and selectivity in industrial applications, and overcomes various defects of existing technologies.
Before this, palladium catalyst is price is too high to hydrogen peroxide, the main reasons for the application in the field of environmental protection is less palladium catalyst products with high technical content, high barriers to entry, the characteristics of high industry monopoly I can research and development of the project's success, makes the book in the company through the JV project (coal for oil project ") and the implementation of the trial of shaanxi province with palladium catalyst products of the company, not only improves the product yield, and has produced high quality and low price of hydrogen peroxide products, thus effectively break the anthraquinone method of producing hydrogen peroxide with palladium catalyst industry monopoly, greatly reduces the production cost, also can promote more other enterprise production of hydrogen peroxide, Has made the contribution for our country's environmental protection.
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