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US 4,853,203 AGranted
Ferrierites; their process of manufacture
AssigneeInstitut Francais du Petrole
InventorsJean-Louis Guth, Anne-Catherine Faust, Francis Raatz, Jean-Marc Lamblin
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Abstract
New ferrierites are disclosed as well as their process of manufacture. According to the invention, these new ferrierites are characterized by: (a) The following approximate formula: M.sub.x/n (T.sup.III O.sub.2).sub.x (Si.sup.IV O.sub.2).sub.36-x wherein T.sup.III is at least one element selected from the group formed of boron (B.sup.III),aluminum (Al.sup.III),gallium (Ga.sup.III) and iron (Fe.sup.III) x ranges from 0.05 and 6.6 M is a compensation cation n is the valence of M. (b) A particular X-ray diagram, (c) A fluorine content after synthesis ranging from about 0.01 to 1.6% by weight, and (d) A Si.sup.IV /T.sup.III molar ratio of at least 4.75.
Claims22
A crystalline synthetic ferrierite characterized by:
- a) the following approximate formula:
- M.sub.x/n (T.sup.III O.sub.2).sub.x (Si.sup.IV O.sub.2).sub.36-x
- where T.sup.III represents at least one element selected from the group of boron (B.sup.III), aluminum (Al.sup.III), gallium (Ga.sup.III) and iron (Fe.sup.III)
- x ranges from 0.05 to 6.6
- M is a compensation cation
- n is the valence of M.
- b) an X-ray diffraction diagram shown in Table 1B of the specification,
- c) a fluorine content after synthesis ranging from 0.2 to 1.6% by weight, and
- d) a Si.sup.IV /T.sup.III molar ratio of at least about 4.75.
6 more elements
A ferrierite produced by a process consisting essentially of:
- (a) preparing a reaction mixture in aqueous solution at a pH lower than about 10, comprising at least one source of silicon oxide, one source of at least one oxide of trivalent metal T selected from the group consisting of boron, gallium, aluminum and iron, one source of fluorine ion F.sup.- and at least one organic structurizing agent supplying nitrogen-containing organic cations, selected from the group consisting of primary and secondary aliphatic monoamines, diamines, triamines and ammonium cations deriving by protonation from said mono-, di-, triamines, said agent having a total number of carbon and nitrogen atoms from 3 to 8, said mixture having a composition, in terms of molar ratios, ranging within the following intervals:
- ______________________________________ Si.sup.IV /.SIGMA.T.sup.III 2-400 (T.sup.III = B,Al,Ga,Fe) F.sup.- /Si.sup.IV 0.1-3 Organic structurizing agent/Si.sup.IV 0.1-4 H.sub.2 O/Si.sup.IV 4-200 ______________________________________
- (b) maintaining said mixture at a heating temperature of at most 270.degree. C., so as to obtain crystals, and
- (c) roasting said crystals at a temperature higher than 400.degree. C., whereby the resultant zeolite has:
- (1) the following approximate formula:
- M.sub.x/n (T.sup.III O.sub.2).sub.x (Si.sup.Iv O.sub.2)36-x
- where T.sup.III represents at least one element selected from the group of boron (B.sup.III), aluminum (Al.sup.III), gallium (Ga.sup.III) and iron (Fe.sup.III)
- x ranges from 0.05 to 6.6
- M is a compensation cation
- n is the valence of M;
- (2) an X-ray diffraction diagram shown in Table 1B;
- (3) a fluorine content after synthesis ranging from 0.2 to 1.6% by weight;
- and
- (4) a Si.sup.IV /T.sup.III molar ratio of at least about 4.75.
11 more elements
A crystalline synthetic ferrierite having:
- (a) the following approximate formula:
- M.sub.x/n (T.sup.III O.sub.2).sub.x (Si.sup.IV O.sub.2).sub.36-x
- where T.sup.III represents at least one of boron (B.sup.III), aluminum (Al.sup.III), gallium (Ga.sup.III) and iron (Fe.sup.III)
- x ranges from 0.05 to 6.6
- M is a compensation cation
- n is the valence of M;
- (b) an X-ray diffraction diagram shown in Table 1B of the specification;
- (c) a fluorine content after synthesis ranging from about 0.01 to 1.6% by weight;
- and
- (d) a Si.sup.IV /T.sup.III molar ratio of at least about 32.
7 more elements
A process for manufacturing a crystalline synthetic ferrierite consisting essentially of the steps of:
- (a) preparing a reaction mixture in aqueous solution at a pH lower than about 10, comprising at least one source of silicon oxide, one source of at least one oxide of trivalent metal T selected from the group consisting of boron, gallium, aluminum and iron, one source of fluorine ion F.sup.- and at least one organic structurizing agent supplying nitrogen-containing organic cations, selected from the group consisting of primary and secondary aliphatic monoamines, diamines, triamines and ammonium cations deriving by protonation from said mono-, di-, triamines, said agent having a total number of carbon and nitrogen atoms from 3 to 8, said mixture having a composition, in terms of molar ratios, ranging within the following intervals:
- ______________________________________ Si.sup.IV /.SIGMA.T.sup.III 2-400 (T.sup.III = B,Al,Ga,Fe) F.sup.- /Si.sup.IV 0.1-3 Organic structurizing agent/Si.sup.IV 0.1-4 H.sub.2 O/Si.sup.IV 4-200 ______________________________________
- (b) maintaining said mixture at a heating temperature of at most 270.degree. C., so as to obtain crystals, and
- (c) roasting said crystals at a temperature higher than 400.degree. C., whereby the resultant zeolite has:
- (1) the following approximate formula:
- M.sub.x/n (T.sup.III O.sub.2).sub.x (Si.sup.IV O.sub.2).sub.36-x
- where T.sup.III represents at least one element selected from the group of boron (B.sup.III), aluminum (Al.sup.III), gallium (Ga.sup.III) and iron (Fe.sup.III).
- x ranges from 0.05 to 6.6
- M is a compensation cation
- n is the valence of M;
- (2) an X-ray diffraction diagram shown in Table 1B of the specification;
- (3) A fluorine content after synthesis ranging from about 0.01 to 1.6% by weight;
- and
- (4) a Si.sup.IV /T.sup.III molar ratio of at least about 32.
11 more elements
Dependencies are inferred from the claim text.