Improved Ti species distribution and hierarchical pores in TS-1: towards regeneration of TS-1 deactivated due to alkali corrosion

Abstract

TS-1 deactivated in industrial cyclohexanone ammoximation can be effectively regenerated by hydrothermal treatment with TPABr and ethanolamine solution.

Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization

“…Doelle et al have reported similar results of the diffusion process of hydrocarbon molecules on the ZSM-5 zeolite. 59 After supporting HPMo or HPMo-H 2 O 2 on Nano-TS-1, the conclusion is consistent with the result of the parent. For larger BT and DBT, the number of saturated organic sulfur molecules slightly increases.…”

“…The aggregation of nanoparticles that emerge in the SEM images of HPMo-Nano-TS-1 and HPMo-H 2 O 2 -Nano-TS-1 is consistent with the FT-IR and XRD results. 58,59 The TEM images of Nano-TS-1, HPMo-Nano-TS-1, and HPMo-H 2 O 2 -Nano-TS-1 catalysts are shown in Fig. 7.…”

Clean Synthesis of Ti-MWW by Utilizing the Recycled Mother Liquor

“…The formation of mesopores may be attributed to the polyethylene glycol in the precipitated silica. The increase in the surface area and mesopores in zeolite can improve the mass transfer performance of reaction species in the channel. − …”

Review and perspectives on TS-1 catalyzed propylene epoxidation

“…Another approach is to post-treatment the final TS-1 with organic alkalis. 106 , 207 , 246 , 247 , 248 , 249 , 250 , 251 Alkalis dissolve the zeolite and remove the Si matrix from the framework, resulting in the formation of micro- and mesoporous composite layers. Recently, TPAOH has been applied as a hot spot etchant to create hierarchical TS-1 zeolites by desilication.…”