Patent US2834228A successfully refreshed from Google Patents.
EP0057016A2
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Process for preparing crystalline aluminosilicate zeolites
Assignee: Toray Industries Inc
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Filing: 1982-01-26
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Granted: —
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Expires: 2002-01-26
Abstract
Abstract A crystalline aluminosilicate zeolite is obtained by stirring under heating an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and an organic carboxylic acid.
Inventors
- 👤 Kazuyoshi Iwayama
- 👤 Takao Kamano
- 👤 Kuniyuku Tada
- 👤 Takehisa Inoue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 12:24
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2861; Y; Y10; Y10S; Y10S423/00; Y10S423/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
36 words
A process for preparing a crystalline aluminosilicate zeolite, which process comprises reacting an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and an organic compound having at least one carboxyl group.
Claim 2
Dependent Claim
36 words
A process for preparing a crystalline aluminosilicate zeolite, which process comprises reacting an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and an organic compound having at least one carboxyl group.
Claim 3
Dependent Claim
24 words
A process according to claim 1, in which said organic compound is a compound an alkali metal salt of which is soluble in water.
Claim 4
Dependent Claim
31 words
A process according to claim 1 or claim 2, in which said organic compound is an organic carboxylic acid having not more than 18 carbon atoms, or a functional derivative thereof.
Claim 5
Dependent Claim
38 words
A process according to any one of claims 1 through 3, in which said organic compound is a compound having not more than 12 carbon atoms, having 1 to 3 carboxyl groups and not containing an aromatic ring.
Claim 6
Dependent Claim
43 words
A process according to any one of claims 1 through 4, in which said organic compound is an aliphatic carboxylic acid having not more than 12 carbon atoms and optionally containing a hydroxyl group or an amino group, or a functional derivative thereof.
Claim 7
Dependent Claim
56 words
A process according to any one of claims 1 through 5, in which said organic compound is a member selected from the group consisting of glycolic, lactic, hydracrylic, hydroxybutyric, tartronic, malic, tartaric, citric, formic, acetic, propionic, butyric, valeic, caproic, acrylic, crotonic, methacrylic, oxalic, malonic, succinic, glutaric, adipic, maleic and fumaric acids, as well as derivatives thereof.
Claim 8
Dependent Claim
32 words
A process according to any one of- claims 1 through 3, in which said organic compound contains 1 or. 2 aromatic rings and has 1 to 3 carboxyl groups in one molecule.
Claim 9
Dependent Claim
40 words
A process according to any one of claims 1 through 3 and 7, in which said organic compound is a member selected from the group consisting of benzoic, phthalic, terephthalic, salicylic, para-hydroxybenzoic and toluic acids, as well as derivatives thereof.
Claim 10
Dependent Claim
35 words
A process according to any one of claims 1 through 8, in which the composition, in terms of mole ratios, of said reaction mixture is as follows: wherein A represents said carboxyl group-containing organic compound.
Claim 11
Dependent Claim
35 words
A process according to any one of claims 1 through 8, in which the composition, in terms of mole ratios, of said reaction mixture is as follows: wherein A represents said carboxyl group-containing organic compound.
Claim 12
Dependent Claim
34 words
A process according to any one of claims 1 through 10, in which said reaction is carried out at a temperature in the range of 80° to 250°C for 5 hours to 30 days.
References Cited (Backward Citations)
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