Method for preparing epoxide

An epoxide and organic peroxide technology, applied in chemical instruments and methods, chemical/physical processes, organic chemistry, etc., can solve the problems of poor mass transfer effect, low catalyst activity, high production cost, and reduce manufacturing costs. , The effect of high catalyst activity and high production efficiency

Active Publication Date: 2009-01-21
5 Cites 54 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the problem of low catalyst activity, poor mass transfe...
View more


The invention relates to a method for preparing an epoxide and mainly resolves the problems in the prior art such as the low activity of catalysts for production of the epoxide, poor effect of mass transference, and high cost of production. The invention well resolves the problems through adopting the technical proposal which selects cheap organic amine as a template with shorter crystallization time, carries titanium through posterior synthesis in the presence of inertia gas, grafts inorganic titanium to silicon dioxide framework with a hexagonal mesoporous structure to form a substance of active titanium with four coordinating structure, and carries out alkylation treatment to produce a catalyst of the epoxide. The method provided by the invention can be applied to the industrialized production of the epoxide.

Application Domain

Organic chemistryMolecular sieve catalysts

Technology Topic

EpoxideLow activity +8


  • Method for preparing epoxide
  • Method for preparing epoxide
  • Method for preparing epoxide


  • Experimental program(13)
  • Comparison scheme(2)

Example Embodiment

[0020] [Example 1]
[0021] Add 10 g of hexadecylamine, 5 g of dodecylamine to 80 ml of H at room temperature with stirring 2 O, 60 mL of ethanol and 5 mL of (1M) hydrochloric acid, and stirred until the solution was one-phase. 65.0 g of ethyl orthosilicate dissolved in 30 ml of ethanol was added to the above mixed solution, stirred for 30 minutes, and then crystallized for 24 hours. The resulting solid was filtered and washed with water to remove residual Cl -. The washed solid was dried at 110°C for 12 hours, and then calcined at 600°C for 4 hours to obtain HMS with hexagonal mesoporous structure.
[0022] After crushing and sieving the powdery sample prepared above (forming pressure is 20MPa), take 10.0 grams of 20-40 mesh particles and put them in a quartz tubular reactor, and dry them at 120°C for 2 hours under a nitrogen atmosphere. Raise the temperature to 300 °C and replace 1.2 g of TiCl with nitrogen 4Saturated steam was brought in, followed by raising the temperature to 700°C for 2 hours calcination. After lowering the temperature to 220°C, 1.5 g of saturated steam was introduced, followed by a nitrogen purge for 2 hours. Then, at this temperature, nitrogen gas was used to carry out silanization treatment with saturated steam of 4.0 g of hexamethyldisilazane, and then purged with nitrogen gas for 2 hours to obtain a silanized Ti-HMS catalyst with a ratio of The surface area is 820 meters 2 /g, pore volume is 0.87 cm 3 /g, the average pore size is

Example Embodiment

[0023] [Example 2]
[0024] Except for TiCl 4 The remaining conditions are the same as [Example 1] except that the amount of 1.5 grams. The specific surface area of ​​the prepared Ti-HMS catalyst is 800 m 2 /g, the hole volume is 0.85 cm 3 /g, the average pore size is

Example Embodiment

[0025] [Example 3]
[0026] Except for TiCl 4 The remaining conditions are the same as [Example 1] except that the amount of 0.9 g. The specific surface area of ​​the prepared Ti-HMS catalyst is 850 m 2 /g, pore volume is 0.9 cm 3 /g, the average pore size is


no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Automatic glue-dispersion chip mounting machine


Multi-scale greenhouse environment control system based on crop information fusion

InactiveCN102736596ABeneficial to crop physiology and growth needsIncrease productivity

Classification and recommendation of technical efficacy words

Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products