US 12,145,137 B2
DLM-1 molecular sieve, process for preparing the same, and use thereof
Zhaoji Tang, Liaoning (CN); and Hongfei Fan, Liaoning (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd., Liaoning (CN)
Appl. No. 17/757,998
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and SINOPEC DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS CO., LTD., Liaoning (CN)
PCT Filed Dec. 24, 2020, PCT No. PCT/CN2020/139112
§ 371(c)(1), (2) Date Jun. 24, 2022,
PCT Pub. No. WO2021/129760, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 201911355108.1 (CN), filed on Dec. 25, 2019.
Prior Publication US 2023/0025198 A1, Jan. 26, 2023
Int. Cl. B01J 29/00 (2006.01); B01J 29/04 (2006.01); B01J 35/64 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); C10G 45/08 (2006.01); C10G 45/12 (2006.01); C10G 47/20 (2006.01)
CPC B01J 29/044 (2013.01) [B01J 29/045 (2013.01); B01J 35/647 (2024.01); B01J 37/0009 (2013.01); B01J 37/0203 (2013.01); C10G 45/08 (2013.01); C10G 45/12 (2013.01); C10G 47/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A process for preparing a DLM-1 molecular sieve, which comprises a step of contacting an amorphous silica alumina, a P123 triblock copolymer and water under a crystallization condition to obtain a molecular sieve; and optionally, a step of calcining said obtained molecular sieve,
step 1) mixing an amorphous silica alumina and water to form a slurry;
step 2) formulating an acidic solution containing a P123 triblock copolymer; and
step 3) mixing the slurry and the acidic solution containing a P123 triblock copolymer under crystallization conditions to obtain the DLM-1 molecular sieve,
wherein in a mass ratio of the amorphous silica alumina, on a dry basis, to water is 10:90 to 30:70, in step 2), the acidic solution has a pH value of 1-5, a mass content of the P123 triblock copolymer in the acidic solution is 0.5% to 5.0%, and in step 3), a mass ratio of the slurry, on the dry basis of the amorphous silica alumina, to the acidic solution, based on said P123 triblock copolymer, is 0.5:1 to 5:1.