Preservation of organic liquids
US8241687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2007 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 6, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B3/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is provided for treating cooking oil during frying operations, which comprises in situ treatment of the oil with a source of calcium or magnesium combined with silicate such that the calcium or magnesium substantially does not leach into the oil. The filter treatment materials may be cement clinker, OPC, calcium silicate and combinations or mixtures thereof e.g. a combination of white OPC clinker and white OPC. The filter treatment materials may be in the form of a free briquette or block immersed in the oil. In other embodiments a decontaminating or filter cartridge is provided for fitting to a deep oil or fat cooker or a frying basket and comprises a foraminous housing containing filtering or decontaminant material. The cartridge may be used in association with a deep oil or fat fryer having a base formed with a depression defining a cool spot, the cartridge fitting in or on said cool spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.