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 Title: |
EP0234221A2:
Method for refining glyceride oils using acid-treated amorphous silica[German][French]
[ Derwent Title ]
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Country:
Kind: |
EP European Patent Office (EPO)
A2 APPLICATION PUBLISHED WITHOUT SEARCH REPORT i
(See also:
EP0234221A3,
EP0234221B1,
EP0234221B2 )
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| Inventor: |
Welsh, William Alan;
Parker, Perry Michael;
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| Assignee: |
W.R. GRACE & CO.
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| Published / Filed: |
1987-09-02
/ 1987-01-14
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| Application Number: |
EP1987000100406
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| IPC Code: |
Advanced:
C11B 3/10;
Core:
C11B 3/00;
IPC-7:
C11B 3/10;
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| Priority Number: |
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| Abstract: |
Adsorbents comprising organic acid-treated amorphous silicas with effective average pore diameters of about 60 to about 5000 Angstroms are useful in processes for the removal of trace contaminants, specifically phospholipids and associated metal ions, from glyceride oils.
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Designated Country: |
AT BE CH DE ES FR GB GR IT LI NL SE
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| Family: |
Show 51 known family members
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Description
Expand description |
[From equivalent
EP0234221B2]
+ Background of the invention
This invention relates to a method for refining glyceride oils by contacting the oils with an adsorbent capable of selectively removing trace contaminants. More specifically, it has been found that novel organic acid-treated amorphous silicas of suitable porosity have superior properties for the adsorption of phospholipids and associated metal containing species from glyceride oils. This facilitates the production of oil products with substantially lowered concentrations of these trace contaminants. The term "glyceride oils" as used herein is intended to encompass all lipid compositions, including vegetable oils and animal fats and tallows. This term is primarily intended to describe the so-called edible oils, i.e., oils derived from fruits or seeds of plants and used chiefly in foodstuffs, but it is understood that oils whose end use is as non-edibles are to be included as well. It should be recognized that the method of this invention also can be used to treat fractionated streams derived from these sources.
+ Summary of the invention
+ Detailed description of the invention
+ Example I
+ (Adsorbents and oils used)
+ Example II
+ (Preparation of acid-treated adsorbents)
+ Example III
+ (Oil treatment procedures)
+ Example IV
+ (Treatment of rapeseed oil)
+ Example V
+ (Varying treatments and adsorbents)
+ Example VI
+ (Organic vs. inorganic acids)
+ Example VI
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