Amorphous adsorbent, method of obtaining the same and its use in the bleaching of fats and/or oils
US8394975B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2007 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
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/l; 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.