Method for preparing phenylcyclohexane from cyclohexene and benzene alkylation
A technology for alkylation of cyclohexylbenzene and benzene, which is applied in chemical instruments and methods, organic chemistry, hydrocarbons, etc., can solve the problems of high price of ionic liquids, unfavorable industrial applications, and increased product separation costs.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Synthesis of MCM-56 molecular sieves with MWW topology.
[0025] Get 600 grams of 40wt% silica sol, add 700 grams of water, 38.9 grams of sodium metaaluminate (Al 2 o 3 42wt%) and 2 grams of sodium hydroxide, after stirring evenly, add 125 grams of hexamethyleneimine (HMI). The above mixture was aged at room temperature for 100 hours, then raised to 138° C. for crystallization, and after crystallization for 40 hours, washed with distilled water until neutral, and then dried. X-ray powder diffraction (XRD) results show that the synthesized product is MCM-56. Wherein the above reaction mixture is in molar ratio: SiO 2 / Al 2 o 3 25,OH - / SiO 2 is 0.093, H 2 O / SiO 2 14.72, HMI / SiO 2 is 0.32. The obtained MCM-56 molecular sieve silicon aluminum molar ratio SiO 2 / Al 2 o 3 The crystallinity of MCM-56 molecular sieve is 99.8%.
[0026] Take 50 g of the dried powder sample, exchange it with 1M ammonium nitrate 4 times, filter and dry. Then it was fully mixed wi...
Embodiment 2
[0028] Synthesis of MCM-22 molecular sieves with MWW topology.
[0029] Sodium aluminate (Al 2 o 3 35.21wt%, Na 2 O 31.12wt%) 14.5 grams are dissolved in 990 grams of water, add 6.18 grams of sodium hydroxide and make it dissolve, then add 49.5 grams of organic amine template agent hexamethyleneimine under the situation of stirring, then add silica sol (SiO 2 40wt%) 150 grams, after being stirred uniformly, the material ratio (molar ratio) of reactant is: SiO 2 / Al 2 o 3 =20,OH - / SiO 2 =0.3, R / SiO 2 =0.5,H 2 O / SiO 2 =60. After stirring for 30 minutes, put it into a stainless steel reaction kettle, and crystallize at 150° C. for 30 hours while stirring. It is then cooled, the crystallized solid product is filtered, and the mother liquor of crystallization is recovered. The above solid crystalline product was filtered, washed and dried. The obtained crystals were determined to be MCM-22 by X-ray diffractometer. SiO was obtained by chemical analysis 2 / Al 2 o ...
Embodiment 3
[0032] Synthesis of Beta molecular sieves with BEA topology.
[0033]600g 40wt.% silica sol, 38.9g sodium aluminate (alumina content 42wt.%), 70.6g 25wt.% tetraethylammonium hydroxide (TEAOH), 5.0g diethylamine (DEA), 168.0g tetraethyl Ammonium bromide (TEABr), 16.0g of sodium hydroxide, 136.0g of 25wt.% ammonium hydroxide, and 925.1g of water were mixed and stirred evenly at room temperature. Then transferred to a stainless steel autoclave, the crystallization temperature was 155°C, and reacted for 50 hours. After the reaction, the crystalline product was filtered, washed and dried. Among them, SiO in molar ratio in the reaction mixture 2 / A1 2 o 3 =35, TEAOH / SiO 2 =0.05, DEA / SiO 2 =0.01, TEABr / SiO 2 =0.3, NaOH / SiO 2 =0.05, NH 4 OH / SiO 2 =0.2,H 2 O / SiO 2 = 25, R1 / R2 = 0.2. The crystalline product obtained by XRD powder diffraction analysis of the product is Beta zeolite, and the crystal grain diameter is 10-40nm as analyzed by transmission electron microscope and...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More