SCM-10 molecular sieve, process for producing same and use thereof
The present invention relates to an SCM-10 molecular sieve, a process for producing same and use thereof. The molecular sieve has an empirical chemical composition as illustrated by the formula “the first oxide·the second oxide”, wherein the ratio by molar of the first oxide to the second oxide is less than 40, the first oxide is at least one selected from the group consisting of silica and germanium dioxide, the second oxide is at least one selected from the group consisting of alumina, boron oxide, iron oxide, gallium oxide, titanium oxide, rare earth oxides, indium oxide and vanadium oxide. The molecular sieve has specific XRD pattern and can be used as an adsorbent or a catalyst for converting an organic compound.
1. An SCM-10 molecular sieve, having an empirical chemical composition of “first oxide second oxide”, wherein a ratio by molar of the first oxide to the second oxide is less than 40, the first oxide is at least one compound selected from the group consisting of silica and germanium dioxide, the second oxide is at least one selected from the group consisting of alumina, boron oxide, iron oxide, gallium oxide, titanium oxide, rare earth oxides, indium oxide, and vanadium oxide, and the SCM-10 molecular sieve in a calcined form has an X ray diffraction pattern as substantially illustrated in the following table,
2θ (°) (a)
d-spacing (Å) (b)
Relative intensity (I/I 0 × 100)
6.50
13.59
w-s
7.98
11.07
s-vs
9.36
9.45
m
11.27
7.85
w-m
20.02
4.43
s
22.65
3.92
vs
24.13
3.69
vs
26.45
3.37
w-m
27.92
3.19
w-m
35.95
2.50
m
(a) ±0.3°,
(b) changed with 2θ.
2. The SCM-10 molecular sieve according to claim 1 , wherein the X-ray diffraction pattern further includes X-ray diffraction peaks as substantially illustrated in the following table,
2θ (°) (a)
d-spacing (Å) (b)
Relative intensity (I/I 0 × 100)
14.12
6.27
w
16.12
5.49
w
18.82
4.71
w
37.52
2.40
w
(a) ±0.3°,
(b) changed with 2θ.
3. The SCM-10 molecular sieve of claim 1 , wherein the ratio by molar of the first oxide to the second oxide is 3 or more and less than 40.
4. The SCM-10 molecular sieve of claim 1 , wherein the ratio by molar of the first oxide to the second oxide is in the range of from 5 to 30.
5. An SCM-10 molecular sieve composition, comprising the SCM-10 molecular sieve according to claim 1 and a binder.
6. A method for converting an organic compound, comprising contacting the organic compound with a catalyst comprising the SCM-10 molecular sieve composition according to claim 5 .
7. The method according to claim 6 , wherein the catalyst is at least one selected from the group consisting of an alkane isomerization catalyst, a catalyst for the alkylation between olefins and aromatics, an olefin isomerization catalyst, a naphtha cracking catalyst, a catalyst for the alkylation between alcohols and aromatics, an olefin hydration catalyst, and an aromatic disproportionation catalyst.
8. The method for separating a component from a mixture, comprising contacting the mixture with an adsorbent comprising the SCM-10 molecular sieve composition according to claim 5 .
9. A method for converting an organic compound, comprising contacting the organic compound with a catalyst comprising the SCM-10 molecular sieve according to claim 1 .
10. The method according to claim 9 , wherein the catalyst is at least one selected from the group consisting of an alkane isomerization catalyst, a catalyst for the alkylation between olefins and aromatics, an olefin isomerization catalyst, a naphtha cracking catalyst, a catalyst for the alkylation between alcohols and aromatics, an olefin hydration catalyst, and an aromatic disproportionation catalyst.
11. The method for separating a component from a mixture, comprising contacting the mixture with an adsorbent comprising the SCM-10 molecular sieve according to claim 1 .
12. A process for producing the SCM-10 molecular sieve of claim 1 , comprising a step of crystallizing a mixture comprising a first oxide source for the first oxide, a second oxide source for the second oxide, an organic template and water to obtain the molecular sieve, and optionally, a step of calcining the obtained molecular sieve, wherein the organic template is selected from a compound represented by the following formula (A), a quaternary ammonium salt thereof and a quaternary ammonium hydroxide thereof.
13. The process according to claim 12 , wherein the mixture does not contain an alkaline source.
14. The process according to claim 12 , wherein the mixture does not contain a fluorine source.
15. The process according to claim 12 , wherein the mixture has a pH=6-14.
16. The process according to claim 12 , wherein the first oxide source is at least one selected from the group consisting of a silicon source and a germanium source, the second oxide source is at least one selected from the group consisting of an aluminum source, a boron source, an iron source, a gallium source, a titanium source, a rare earth source, an indium source and, a vanadium source, the ratio by molar between the first oxide source (calculated as the first oxide), the second oxide source (calculated as the second oxide), the organic template and water is 1:(0.025-1/3):(0.01-1.0):(4-50), with the proviso that the ratio by molar of the first oxide source (calculated as the first oxide) to the second oxide source (calculated as the second oxide) is less than 40.
17. The process of claim 12 , wherein the organic template is 4-dimethylamino pyridine,
wherein R 1 and R 2 is identical to or different from each other, each independently representing a C 1-8 alkyl.
18. An SCM-10 molecular sieve composition, comprising a SCM-10 molecular sieve produced in line with the process according to claim 12 and a binder.
19. A method for converting an organic compound, comprising contacting the organic compound with a catalyst comprising the SCM-10 molecular sieve produced with the process according to claim 12 .
20. The method according to claim 19 , wherein the catalyst is at least one selected from the group consisting of an alkane isomerization catalyst, a catalyst for the alkylation between olefins and aromatics, an olefin isomerization catalyst, a naphtha cracking catalyst, a catalyst for the alkylation between alcohols and aromatics, an olefin hydration catalyst, and an aromatic disproportionation catalyst.
21. The method for separating a component from a mixture, comprising contacting the mixture with an adsorbent comprising the SCM-10 molecular sieve produced with the process according to claim 12 .