Patent EP0269173A2 successfully refreshed from Google Patents.
EP0269173A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Metal-oxide-silica adsorbent and process for refining oil using the same
Assignee: Ineos Silicas Ltd
•
Filing: 1987-11-16
•
Granted: —
•
Expires: 2007-11-16
Abstract
Abstract The invention provides a synthetic, calcined metal-oxide-silica adsorbent of which at least 40% of its surface area is contained in pores with radius of at least 2 nm. The invention further provides a process for refining oil, wherein the oil is treated with the adsorbent as a bleaching solid. The adsorbent can be regenerated by calcination without substantial loss of activity.
Inventors
- 👤 Leendert Hendrik Staal
- 👤 Jan Cornelis Vis
- 👤 Jan Willem Groeneweg
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 15:36
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/10; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
33 words
A synthetic metal-oxide-silica adsorbent, characterised in that the adsorbent is a calcined metal-oxide-silica, of which at least 40% of its surface area is contained in pores with radius of at least 2 nm.
Claim 2
Dependent Claim
33 words
A synthetic metal-oxide-silica adsorbent, characterised in that the adsorbent is a calcined metal-oxide-silica, of which at least 40% of its surface area is contained in pores with radius of at least 2 nm.
Claim 3
Dependent Claim
30 words
An adsorbent according to claim 1, wherein at least 50 mole% of the metal contained in the metal-oxide-silica is a metal that can have an oxidation state higher than 2.
Claim 4
Dependent Claim
29 words
An adsorbent according to claim 2, wherein the balance of the metal contained in the metal-oxide-silica consists essentially of a metal selected from the group of alkaline earth metals.
Claim 5
Dependent Claim
35 words
An adsorbent according to claim 2 or 3, wherein the metal that can have an oxidation state higher than 2 is selected from the group consisting of aluminium, iron, zirconium, cobalt, manganese and mixtures thereof.
Claim 6
Dependent Claim
20 words
An adsorbent according to claim 4, wherein the metal that can have an oxidation state higher than 2 is aluminium.
Claim 7
Dependent Claim
29 words
An adsorbent according to any one of the preceding claims, wherein at least 60% of the surface area is contained in pores with radius of at least 2 nm.
Claim 8
Dependent Claim
19 words
An adsorbent according to any one of the preceding claims, having a total specific surface area of 250-550 m²/g.
Claim 9
Dependent Claim
25 words
An adsorbent according to any one of the preceding claims, having a specific surface area in pores with radius of 2.0-4.0 nm of 100-500 m²/g.
Claim 10
Dependent Claim
27 words
An adsorbent according to any one of the preceding claims, having a specific pore volume in pores with radius of up to 200 nm of 1.4-4 ml/g.
Claim 11
Dependent Claim
25 words
An adsorbent according to any one of the preceding claims, having a specific pore volume in pores with radius of 100-2000 nm of 0.7-3 ml/g.
Claim 12
Dependent Claim
16 words
An adsorbent according to any one of the preceding claims, wherein the metal-oxide-silica is X-ray amorphous.
Claim 13
Dependent Claim
18 words
An adsorbent according to any one of the preceding claims, having a volume-weighted mean diameter of 5-50 micrometres.
Claim 14
Dependent Claim
27 words
An adsorbent according to any one of the preceding claims, having a metal content, calculated as mole fraction of the total metal plus silicon content, of 0.1-0.3.
Claim 15
Dependent Claim
20 words
An adsorbent according to any one of the preceding claims, having a sodium content of less than 0.5% by weight.
Claim 16
Dependent Claim
33 words
A process for refining oil by treatment of the oil with a bleaching solid, characterised in that as the bleaching solid the adsorbent according to any one of the preceding claims is used.
Claim 17
Dependent Claim
31 words
A process according to claim 15, wherein the treatment comprises contacting the oil and the bleaching solid, and maintaining the contact for an adequate period of time at an elevated temperature.
Claim 18
Dependent Claim
14 words
A process according to claim 16, wherein the elevated temperature is at least 40°C.
Claim 19
Dependent Claim
14 words
A process according to claim 16 or 17, wherein the elevated temperature is 50-200°C.
Claim 20
Dependent Claim
29 words
A process according to any one of the preceding claims 15 to 18, wherein the bleaching solid is used in an amount of 0.1-5% by weight of the oil.
Claim 21
Dependent Claim
20 words
A procvess according to any one of the preceding claims 15 to 19, wherein the oil is a fatty oil.
Claim 22
Dependent Claim
14 words
A process according to claim 20, wherein the fatty oil is a triglyceride oil.
Claim 23
Dependent Claim
16 words
A process according to claim 20 or 21, wherein the fatty oil is an edible oil.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.