High-performance adsorbents based on activated carbon having high meso- and macropososity

a technology of activated carbon and adsorption medium, which is applied in the field of high-performance adsorption medium based on activated carbon, can solve the problems of preventing many applications, reducing the application range, and mainly producing spherocarbon through multi-stage and expensive and inconvenient processes, and achieves high meso- and macroporosity, high stability to abrasion and bursting, and large total pore volume
US20120172216A1Inactive Publication Date: 2012-07-05BLUCHER GMBH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BLUCHER GMBH
Publication Date
2012-07-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention concerns high-performance adsorbents based on activated carbon of high meso- and macroporosity which are present in the form of discrete grains of activated carbon, whereinat least 55% of the total pore volume of the high-performance adsorbents are formed by pores (i.e. meso- and macropores) having pore diameters of more than 20 Å,the high-performance adsorbents have a measure of central tendency pore diameter of more than 25 Å, andthe high-performance adsorbents have a BET surface area of at least 1250 m2 / g.These high-performance adsorbents are obtainable by a novel process comprising specific two-stage activation, and have, in addition to the aforementioned properties, an excellent abrasion and bursting resistance, so that they are useful for a multiplicity of different applications.
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Description

CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This application is a National Stage filing of International Application PCT / EP2008 / 000606, filed Jan. 25, 2008, claiming priority to German Application Nos. DE 10 2007 012 963.9 filed Mar. 14, 2007 and DE 10 2007 050 971.7, filed Oct. 25, 2007. The subject application claims priority to PCT / EP2008 / 000606, to German Application Nos. DE 10 2007 012 963.9 and DE 10 2007 050 971.7 and incorporates all by reference herein, in their entirety.BACKGROUND OF THE INVENTION

[0002] The present invention concerns the adsorption arts. More particularly, the present invention concerns high-performance adsorbents based on activated carbon of high meso- and macroporosity and a process for production thereof and also the use of these high-performance adsorbents, particularly for adsorptive filtering materials, for the food industry (for example for preparing and / or decolorizing food products, for the adsorption of toxins, noxiants and odors, particularly f...

Claims

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