Synthesis of titanium silicalite‐1 with high titanium content and its catalytic performance of propylene epoxidation

2020 ◽  
Author(s):  
Jiang Gao ◽  
Gao Lin ◽  
Baoqiang Zhang ◽  
Haoyu Wang ◽  
Weihua Ma
Keyword(s):  
Catalytic Performance ◽  
Titanium Content ◽  
Titanium Silicalite ◽  
Propylene Epoxidation ◽  
High Titanium Content

Enhanced Catalytic Activity on Post-Synthesized Hollow Titanium Silicalite-1 with High Titanium Content on the External Surface

2016 ◽  
Vol 1 (19) ◽  
pp. 6160-6166 ◽  
Author(s):  
Yi Zuo ◽  
Min Liu ◽  
Mengtong Ma ◽  
Yanli Wang ◽  
Xinwen Guo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
External Surface ◽  
Titanium Content ◽  
Titanium Silicalite ◽  
High Titanium Content

Synthesis of pure and uniform nano-sized TS-1 crystal with high titanium content and high space-time yield

2021 ◽  
Author(s):  
Lejian Zhang ◽  
Xiaoxiao Zhu ◽  
Xinping Wang ◽  
Chuan Shi
Keyword(s):  
Selective Oxidation ◽  
Cost Efficiency ◽  
Environmental Issues ◽  
Titanium Content ◽  
Space Time ◽  
Titanium Silicalite ◽  
Oxidation Reactions ◽  
High Space ◽  
Space Time Yield ◽  
Selective Oxidation Reactions

Anatase-free titanium silicalite-1 (TS-1) zeolite with high framework titanium content is highly required for catalysing selective oxidation reactions, while its synthesis generally suffers from cost, efficiency and environmental issues. Herein,...

scholarly journals Hydrothermal synthesis and catalytic performance of bulky titanium silicalite-1 aggregates assembled by bridged organosilane

2018 ◽  
Vol 39 (2) ◽  
pp. 275-282 ◽  
Author(s):  
Li Chen ◽  
Teng Xue ◽  
Jian Ding ◽  
Hai Hong Wu ◽  
Kun Zhang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Catalytic Performance ◽  
Titanium Silicalite

Titanium silicalite-1 zeolite encapsulating Au particles as a catalyst for vapor phase propylene epoxidation with H2/O2: a matter of Au–Ti synergic interaction

2020 ◽  
Vol 8 (8) ◽  
pp. 4428-4436 ◽  
Author(s):  
Lu Wang ◽  
Jiajun Dai ◽  
Yan Xu ◽  
Yingling Hong ◽  
Jiale Huang ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Solvent Free ◽  
Titanium Silicalite ◽  
Propylene Epoxidation

Seed-directed solvent-free crystallization combined with bio-extract integration is used to encapsulate Au into TS-1, enhancing Au–Ti synergic interaction. The resulted Au–Ti@MFI exhibits excellent performances for vapor phase propylene epoxidation.

Kinetics of propylene epoxidation with hydrogen peroxide catalyzed by extruded titanium silicalite in methanol

2016 ◽  
Vol 57 (4) ◽  
pp. 466-473 ◽  
Author(s):  
A. V. Sulimov ◽  
S. M. Danov ◽  
A. V. Ovcharova ◽  
A. A. Ovcharov ◽  
V. R. Flid
Keyword(s):  
Hydrogen Peroxide ◽  
Titanium Silicalite ◽  
Propylene Epoxidation ◽  
Kinetics Of

scholarly journals Synthesis of Low Cost Titanium Silicalite-1 Zeolite for Highly Efficient Propylene Epoxidation

2021 ◽  
Vol 9 ◽  
Author(s):  
Meng Liu ◽  
Zihan Huang ◽  
Wei Wei ◽  
Xiangyu Wang ◽  
Yiqiang Wen
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Reaction ◽  
Low Cost ◽  
Synthesis Method ◽  
Industrial Applications ◽  
Synthesis Process ◽  
Titanium Silicalite ◽  
High Turnover ◽  
Propylene Epoxidation ◽  
Widespread Application

Developing an effective and low-cost system to synthesize titanium silicalite-1 (TS-1) zeolite is desirable for a range of industrial applications. To date, the poor catalytic activity of the synthesized zeolite due to the low amount of framework titanium and large crystal size is the main obstacle limiting the widespread application of this material. Moreover, a large amount of wastewater is often produced by the existing synthesis process. Herein, a green and sustainable route for synthesizing small-crystal TS-1 with a high fraction of framework Ti was demonstrated via a seed-assisted method using a tetrapropylammonium bromide (TPABr)-ethanolamine hydrothermal system. The influence of the synthesis conditions on the physicochemical properties and catalytic activities of TS-1 was investigated. With the assistance of nanosized S-1 seeds, the incorporation of Ti into the framework of TS-1 was promoted, and the crystallization rate was effectively accelerated. After alkaline etching, the obtained hierarchical TS-1 had higher catalytic activity towards propylene epoxidation with an extremely high turnover frequency of 1,650 h−1. Furthermore, the mother liquid during the hydrothermal reaction could be reused for the next synthesis procedure. Consequently, utilization ratios of both ethanolamine and TPABr exceeding 95% were achieved by recycling the mother liquid. This low-cost approach for reducing wastewater could be easily scaled up to provide a promising synthesis method for the industrial production of TS-1 and other topological zeolites.

Study of Comprehensive Utilization on Ti-Bearing Blast Furnace Slag

2014 ◽  
Vol 488-489 ◽  
pp. 141-144 ◽  
Author(s):  
Qian Qian Ren ◽  
Su Ju Hao ◽  
Wu Feng Jiang ◽  
Yu Zhu Zhang ◽  
Wei Pan Zhang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Titanium Content ◽  
Application Field ◽  
Comprehensive Utilization ◽  
Furnace Slag ◽  
Application Prospects ◽  
High Titanium Content

With the increase of Ti-bearing blast furnace slag, its harm is growing. It contains high titanium content. How to make good use of Ti-bearing blast furnace slag is currently a hot problem. In this paper, the conditions of comprehensive utilization on Ti-bearing blast furnace slag were described firstly. Then the features, application field and problems of extraction and non-extraction titanium from Ti-bearing blast furnace slag were introduced. The advantages, disadvantages and problems of comprehensive utilization of Ti-bearing blast furnace slag were analyzed. Finally the application prospects were forecasted.

Synthesis of Hierarchical Titanium‐Rich Titanium Silicalite‐1 Zeolites and the Highly Efficient Catalytic Performance for Hydroxylation of Phenol

2019 ◽  
Vol 4 (5) ◽  
pp. 1618-1626
Author(s):  
Zongzhuang Han ◽  
Yun Shen ◽  
Xiaofei Qin ◽  
Fumin Wang ◽  
Xubin Zhang ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Titanium Silicalite ◽  
Hydroxylation Of Phenol ◽  
Highly Efficient
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