Molecular sieve SCM-15, synthesis method therefor and use thereof

Patent metadata

Field	Value
Publication number	US-10974967-B2
Application number	US-201716622795-A
Country	US
Kind code	B2
Filing date	Oct 31, 2017
Priority date	Jun 13, 2017
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

The invention relates to a molecular sieve SCM-15, a preparation process and use thereof. The molecular sieve comprises a schematic chemical composition of a formula of “SiO 2 .GeO 2 ”, wherein the molar ratio of silicon and germanium satisfies SiO 2 /GeO 2 ≥1. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.

First claim

The invention claimed is:

1. A molecular sieve SCM 15 in its prepared form or calcined form, has an X-ray diffraction spectrum substantially as shown in Table A-1 or Table A-2 below,

TABLE A-1

2θ (°) (a)
d-distance (Å) (b)
Relative intensity (I/I 0 × 100)

4.811
18.353
w

6.571
13.441
m-vs

6.888
12.823
m-s

9.675
9.134
m-vs

9.894
8.933
m-vs

19.888
4.461
w-m

(a) = ±0.3°,

(b) is a function of 2θ,

TABLE A-2

2θ (°) (a)
d-distance (Å)
Relative intensity (I/I 0 × 100)

4.811
18.424 ± 1.148
w

6.571
13.468 ± 0.614
m-vs

6.888
12.847 ± 0.559
m-s

9.675
 9.143 ± 0.283
m-vs

9.894
 8.941 ± 0.270
m-vs

19.888
 4.462 ± 0.067
w-m

(a)= ±0.3°.

2. The molecular sieve SCM-15 according to claim 1 , wherein the X-ray diffraction spectrum further comprises X-ray diffraction peaks substantially as shown in Table B-1 or Table B-2 below,

TABLE B-1

2θ (°) (a)
d-distance (Å) (b)
Relative intensity (I/I 0 × 100)

8.225
10.741
W

15.592
5.679
W

22.031
4.031
w-m

22.435
3.960
w-m

25.330
3.513
W

(a) = ±0.3°,

(b) is a function of 2θ,

TABLE B-2

2θ (°) (a)
d-distance (Å)
Relative intensity (I/I 0 × 100)

8.225
10.755 ± 0.392 
W

15.592
5.681 ± 0.109
W

22.031
4.032 ± 0.054
w-m

22.435
3.960 ± 0.052
w-m

25.330
3.514 ± 0.041
W

(a) = ±0.3°,

said X-ray diffraction spectrum optionally further comprising X-ray diffraction peaks substantially as shown in the table below,

2θ (°) (a)
d-distance (Å)
Relative intensity (I/I 0 × 100)

14.294
6.194 ± 0.129  
W

16.909

Assignees

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

Inventors

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

Classifications

• C07C15/04

  Benzene · CPC title

• C07C11/06

  Propene · CPC title

• C07C4/18

  Catalytic processes · CPC title

• C01P2006/14

  Pore volume · CPC title

• C01P2006/12

  Surface area · CPC title