CA1102346A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Process for producing a functionalized silica by reacting silica with a silane and a polyamine
Assignee: BP PLC
•
Filing: 1977-07-05
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Granted: 1981-06-02
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Expires: 1997-07-05
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A functionalised silica is prepared by reacting silica with a silane and a polyamine. The product is useful for removing metals from solution, e.g., Cu from ATX, or in the extraction of U from its ores.
Inventors
- 👤 Ian V. Howell
- 👤 Ronald D. Hancock
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-05 14:58
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/103; B01J20/30; B01J20/3078; B01J20/3085; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3257; C02; C02F; C02F1/00; C02F1/28; C02F1/285; C10G25/02; C10G25/03; C10G25/05
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
160 words
A product, suitable for the removal of heavy metals, transition metals and actinide metals from solution, obtained by reacting an inorganic solid containing surface hydroxyl groups in a first stage with a compound of formula (I) (I) wherein R is a divalent organic group containing up to 20 carbon atoms, R1 and R2 are halogen atoms or organic radicals, Y is a halogen atom or an - OR3 group in which R3 represents a H atom or an alkyl, aryl, or acyl group containing up to 20 carbon atoms and X is a halogen atom; and reacting the product of the first stage with a polyamine of formula (II) (II) wherein R4, R5, R6 and R7 represent H atoms, alkyl or aryl groups containing up to 20 carbon atoms and may be the same or different, n is an integer between 1 and 5, and m is an integer between 1 and 5, or a polyamine of formula (III). (III)
Claim 2
Dependent Claim
160 words
A product, suitable for the removal of heavy metals, transition metals and actinide metals from solution, obtained by reacting an inorganic solid containing surface hydroxyl groups in a first stage with a compound of formula (I) (I) wherein R is a divalent organic group containing up to 20 carbon atoms, R1 and R2 are halogen atoms or organic radicals, Y is a halogen atom or an - OR3 group in which R3 represents a H atom or an alkyl, aryl, or acyl group containing up to 20 carbon atoms and X is a halogen atom; and reacting the product of the first stage with a polyamine of formula (II) (II) wherein R4, R5, R6 and R7 represent H atoms, alkyl or aryl groups containing up to 20 carbon atoms and may be the same or different, n is an integer between 1 and 5, and m is an integer between 1 and 5, or a polyamine of formula (III). (III)
Claim 3
Dependent Claim
26 words
2, A product according to claim 1 wherein the inorganic solid containing surface hydroxyl groups is alumina, titania, zirconia, glass/ sepiolite or a zeolitic molecular sieve.
Claim 4
Dependent Claim
16 words
A product according to claim 1 wherein the inorganic solid containing surface hydroxyl groups is silica.
Claim 5
Dependent Claim
18 words
A product according to claims 1, 2 or 3 wherein R1 and R2 are alkoxy or aryloxy groups.
Claim 6
Dependent Claim
15 words
A product according to claims 1, 2 or 3 wherein Y is an alkoxy group.
Claim 7
Dependent Claim
21 words
A product according to claims 1, 2 or 3 wherein R is an alkylene group containing up to 6 carbon atoms.
Claim 8
Dependent Claim
18 words
A product according to claims 1, 2 or 3 wherein R4, R5, R6 and R7 are H atoms.
Claim 9
Dependent Claim
20 words
A product according to claims 1, 2 or 3 wherein n is 2 and m is 1, 2 or 3.
Claim 10
Dependent Claim
29 words
A process for the removal of heavy metals, transition metals and actinide metals from solution by contacting the solution with a product according to claims 1, 2 or 3.
References Cited (Backward Citations)
No citation records indexed.
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