Cooking oil treating system and composition therefor
AssigneeJohns Manville
InventorsWillard John Duensing, Christian John Miga
Life of this patent
Estimating the term…
Abstract
A composition is disclosed which is useful for reduction (by as much as 50% or more) of the rate of free fatty acid buildup and color degradation in cooking oils in fast food outlets and other eating establishments. The composition consists essentially of three specifically defined components: 47 to 59 parts by weight diatomite, 28 to 36 parts by weight synthetic calcium silicate hydrate, and 12 to 24 parts by weight synthetic magnesium silicate hydrate. Also disclosed is a process for achieving such reduction by treating the oil (as by filtering) with the composition.
Claims8
A composition useful for the control of free fatty acids and color in cooking oils, which consists essentially of, in parts by weight:
- diatomite:
- 47 to 59 parts
- synthetic calcium silicate hydrate:
- 28 to 36 parts
- synthetic magnesium silicate hydrate:
- 12 to 24 parts
- wherein;
- (a) said diatomite is a flux-calcined diatomite having a particle size distribution of approximately 20% to 30% less than 20 .mu.m and 40% to 60% less than 30 .mu.m with a dry bulk density of 10 to 14 lb/ft.sup.3 ;
- (b) said synthetic calcium silicate hydrate is formed by the hydrothermal reaction of calcium oxide and silica, having a CaO:SiO.sub.2 weight ratio in the range of approximately 1:1.5 to 1:2.5, a dry bulk density of 6 to 10 lb/ft.sup.3, a particle size distribution of at least about 95% -35 mesh and 8% +325 mesh and a permeability in the range of about 0.35 to 0.70 darcies;
- and
- (c) said synthetic magnesium silicate hydrate is formed by the hydrothermal reaction of magnesium oxide and silica, with an MgO:SiO.sub.2 weight ratio on the order of 1:3.5 to 1:5.5;
- a dry bulk density of about 12 to 15 lb/ft .sup.3, particle size distribution of at least 95% -325 mesh, and a surface area of about 150 to 200 m.sup.2 /g.
Dependencies are inferred from the claim text.