SCM-11 molecular sieve, process for producing same and use thereof

Patent metadata

Field	Value
Publication number	US-10213771-B2
Application number	US-201615347117-A
Country	US
Kind code	B2
Filing date	Nov 9, 2016
Priority date	Nov 9, 2015
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

The present invention relates to an SCM-11 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 more than 2, the first oxide is silica, the second oxide is at least one selected from the group consisting of germanium dioxide, 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.

First claim

We claim:

1. An SCM-11 molecular sieve, having an empirical chemical composition as illustrated by the formula “the first oxide·the second oxide”, wherein the first oxide is silica, the second oxide is a combination of germanium dioxide and 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, a molar ratio of the first oxide to the second oxide is 3-1000, and the molecular sieve has X-ray diffraction pattern as substantially illustrated in the following table,

Relative intensity

2θ (°) (a)
d-spacing (Å)
(I/I 0 × 100)

6.31
13.99
vs

7.20
12.27
w-m

7.97
11.09
m-s

9.43
9.37
w

12.63
7.00
w-m

18.05
4.91
m

22.98
3.87
m-s

(a) ±0.30°.

2. The 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,

Relative intensity

2θ (°) (a)
d-spacing (Å)
(I/I 0 × 100)

12.86
6.88
w-m

18.27
4.85
w

19.01
4.67
s

19.91
4.46
w

21.03
4.22
m-s

22.06
4.03
w

23.33
3.81
w

24.60
3.62
m

25.39
3.51
m

25.89
3.44
w-m

26.65
3.34
m-s

27.96
3.19
w

(a) ±0.30°.

3. The molecular sieve according to claim 1 , wherein the molecular sieve has a specific surface area of 300-650 m 2 /g and a micropore volume of 0.08-0.26 cm 3 /g.

4. The molecular sieve according to claim 1 , wherein the molecular sieve has a ring channel in the range of from 8-membered ring to 14-membered ring, and a pore size (measured by the Argon adsorption method) of 0.54-0.80 nm.

5. The molecular sieve according to claim 1 , having signal peaks at the wave number of 384±10 and at the wave number of 487±10 in the UV Raman spectroscopy thereof.

6. A molecular sieve composition, comprising the molecular sieve according to claim 1 and a binder.

7. A method of converting an organic compound, comprising contacting the organic compound with a catalyst comprising the molecular sieve according to claim 1 .

8. The method of claim 7 , wherein the catalyst is 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, or an aromatic disproportionation catalyst.

9. A method of separating a component from a mixture, comprising contacting the mixture with an adsorbent comprising the molecular sieve of claim 1 .

10. The molecular sieve according to claim 1 , wherein the second oxide is a combination of germanium dioxide and alumina and the molar ratio of the first oxide to the second oxide satisfies SiO 2 /GeO 2 >3 and (SiO 2 +GeO 2 )/Al 2 O 3 >5.

11. An SCM-11 molecular sieve, in the synthesized form having an empirical chemical composition as illustrated by the formula “the first oxide·the second oxide·the organic template·water”, wherein the first oxide is silica, the second oxide is a combination of germanium dioxide and 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, a molar ratio of the first oxide to the second oxide is 3-1000, a ratio by weight of the organic template to the first oxide is 0.05-0.33, a ratio by weight of water to the first oxide is 0-0.15,
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,

wherein R 1 and R 2 are identical to or different from each other, each independently representing a C 1-2 alkyl,
and the mole

Assignees

• China Petroleum & Chem Corp
• Shanghai Res Inst Petrochemical Tech Sinopec

Inventors

• Yang Weimin
• Wang Zhendong
• Sun Hongmin
• Zhang Bin
• Luo Yi

Classifications

• C01B39/48 Primary

  using at least one organic template directing agent · CPC title

• C01P2002/84

  by UV- or VIS- data · CPC title

• C01B39/06

  Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements {, i.e. by direct or secondary synthesis} · CPC title

• B01J29/86

  Borosilicates; Aluminoborosilicates {(B01J29/005 takes precedence)} · CPC title

• C07C6/12

  of exclusively hydrocarbons containing a six-membered aromatic ring · CPC title