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The Synthesis of Ethylene Carbonate Using Tetraethylammonium Bromide(TEAB) as the Catalyst(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2007年01期
Page:
59-62
Research Field:
Publishing date:

Info

Title:
The Synthesis of Ethylene Carbonate Using Tetraethylammonium Bromide(TEAB) as the Catalyst
Author(s):
Li Yang; Zhu Peiyu; Wang Yanru
School of Chemistry and Chemical,Nanjing University of Technology,Nanjing 210009,China
Keywords:
ca rbon diox ide;  ethy lene ox ide;  e thy lene carbonate;  TEAB;  synthesis
PACS:
TQ225.52
DOI:
-
Abstract:
In orde r to exp lore a va luab le pro cess fo r comm ercia l production o f Ethy lene Carbonate ( EC ), carbon d-i ox ide ( CO2 ) and E thy lene Ox ide ( EO) as raw m ater ia ,l and TEAB as the cata ly st w ere utilized. TEAB has the adv antages o f high availab ility, low price and h igh activ ity. The influences o f reaction param ete rs on the EC y ield, such as tem pera ture, pressure, ca talyst concentration, residence tim e as w ell as the ra tio o f EC /EO in the initial feed, w ere exp lo red by m eans o f sing le-var iable param eter and or thogona lm ethod. It was indicated that 98% o f EC y ie ld cou ld be reached at the optima l conditions o f 5.5MPa of reaction pressure, 180℃ o f reaction tem pera ture, 0. 3% of TEAB /EO ( quality ratio), 1.0 of EC /EO in the initial feed( qua lity ratio ) and 120m in o f reaction tim e. It w as a lso verified that the activ ity of the cata ly st rem ained stab leafter 11 times of recycle.

References:

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Last Update: 2013-04-29