B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/28 (2006.01) B01J 20/12 (2006.01) C11B 3/10 (2006.01)
Patent
CA 2668729
The invention relates to a method for producing an adsorbent, in particular a bleaching earth, wherein a clay material having: a surface area of 180 to 300 m2/g; a total pore volume of 0.5 to 0.7 ml/1; wherein at least 60 % of the total pore volume are provided by pores having a pore diameter of at least 140 A, at least 40 % of the total pore volume is provided by pores having a pore diameter of less than 250 A and at least 15 % of the total pore volume are provided by pores having a pore diameter of 140 to 250 A; and said clay material having an amorphous structure according to XRD data; is activated by an activation procedure. Further, the invention relates to an adsorbent as obtained by the method and a method for purification of oils, fats and biofuels.
La présente invention concerne un procédé de production d'un adsorbant, notamment, une terre décolorante, dans lequel un matériau à base d'argile ayant : une aire de surface de 180 à 300 m2/g ; un volume de pore total de 0,5 à 0,7 ml/1 ; dans lequel au moins 60 % du volume total de pore est fourni par des pores ayant un diamètre de pore d'au moins 140 A, au moins 40 % du volume total de pore est fourni par des pores ayant un diamètre de pore inférieur à 250 A et au moins 15 % du volume de pore total est fourni par des pores ayant un diamètre de pore allant de 140 à 250 A ; ledit matériau à base d'argile ayant une structure amorphe selon des données XRD est activé par une procédure d'activation. En outre, l'invention concerne un adsorbant, comme obtenu selon le procédé, et un procédé de purification de matières grasses, d'huiles et de biocombustibles.
Ortiz Niembro Jose Antonio
Ruf Friedrich
Solis Santamaria German
Thomassiny Villaurrutia Erik
Sued-Chemie Ag
Zsigmond Otto
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