²é¿´: 383  |  »Ø¸´: 4
¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û2´Î£¬×÷ÕßGreenSundayÔö¼Ó½ð±Ò 2 ¸ö
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

GreenSunday

Ìú¸Ëľ³æ (ÕýʽдÊÖ)


[×ÊÔ´] Novel Brønsted acidic ionic liquid as efficient and reusable

һƪÓйØÁòËáÇâ¸ùÀë×ÓÒºÖÆ±¸¼°ÔÚõ¥»¯·´Ó¦Ó¦ÓõÄÎÄÏ×£¬ºÜ²»´í¡£
Novel Brønsted acidic ionic liquid as efficient and reusable catalyst system for esterification

Abstract
Under mild conditions and without any additional organicsolvent,esterification of alcohols by carboxylic acids could be carriedout in three new halogen-free Brønsted acidic ionic liquids, 1-(4-sulfonic acid) butyl-3-methylimidazolium hydrogen sulfate, 1-(4-sulfonic acid) butylpyridinium hydrogen sulfate and N-(4-sulfonic acid)butyl triethylammonium hydrogen sulfate. Especially for esterification of ethanol by acetic acid, good conversion rate and high selectivity were obtained, and the liquid esters formed a separate phase that was decanted. The ionic liquid could be reused after removal of water under vacuum.

[ Last edited by wxwdoctor on 2007-3-25 at 20:04 ]
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

berlin

ÈÙÓþ°æÖ÷ (Ö°Òµ×÷¼Ò)


¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶,ÓÅÐãÍÆ¼ö

×îºÃͬʱ¸ø³ö³ö´¦£¬ÒÔ¼°ÄúÔĶÁºóµÄ¸ÐÊÜ£¬Ð»Ð»ºÏ×÷...

ÌâÄ¿ÖбȽÏÎüÒýÈ˵ľÍÊǹØÓÚionic liquid µÄreuse£¬Õâ·½Ãæ»¹ÊǺÜÎüÒýÈ˵Ä...˵˵ÄúµÄ¿´·¨ÁË...

[ Last edited by berlin on 2006-11-26 at 14:51 ]
2Â¥2006-11-26 11:51:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¼òµ¥»Ø¸´
nanohp3Â¥
2006-11-26 14:46   »Ø¸´  
[ Last edited by nanohp on 2006-11-26 at 18:41 ]
berlin4Â¥
2006-11-26 14:53   »Ø¸´  
 
vutzisen5Â¥
2006-11-26 18:04   »Ø¸´  
 
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ GreenSunday µÄÖ÷Ìâ¸üÐÂ
¡î ÎÞÐǼ¶ ¡ï Ò»ÐǼ¶ ¡ï¡ï¡ï ÈýÐǼ¶ ¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ±±¿Æ281ѧ˶²ÄÁÏÇóµ÷¼Á +14 tcxiaoxx 2026-03-20 16/800 2026-03-25 23:14 by peike
[¿¼ÑÐ] 333Çóµ÷¼Á +6 87639 2026-03-21 11/550 2026-03-25 16:17 by 87639
[¿¼ÑÐ] ²ÄÁÏ277Çóµ÷¼Á +4 min3 2026-03-24 4/200 2026-03-25 15:29 by fch1983
[¿¼ÑÐ] 286Çóµ÷¼Á +11 Faune 2026-03-21 11/550 2026-03-25 10:11 by ÎíÉ¢ºóÏàÓölc
[¿¼ÑÐ] ²ÄÁÏѧÇóµ÷¼Á +6 Stella_Yao 2026-03-20 6/300 2026-03-25 00:37 by baoball
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-24 4/200 2026-03-24 16:41 by peike
[¿¼ÑÐ] Ò»Ö¾Ô¸211 ³õÊÔ270·Ö Çóµ÷¼Á +5 ¹ÈÓêÉϰ¶ 2026-03-23 6/300 2026-03-24 16:32 by laoshidan
[¿¼ÑÐ] 307Çóµ÷¼Á +5 ³¬¼¶ÒÁ°º´óÍõ 2026-03-24 5/250 2026-03-24 15:46 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 085404µç×ÓÐÅÏ¢284·ÖÇóµ÷¼Á +4 13659058978 2026-03-24 4/200 2026-03-24 12:15 by syl20081243
[¿¼ÑÐ] 276Çóµ÷¼Á¡£ÓаëÄêµç³ØºÍ°ëÄê¸ß·Ö×Óʵϰ¾­Àú +9 ²ÄÁÏѧ257Çóµ÷¼Á 2026-03-23 10/500 2026-03-24 07:36 by wangy0907
[¿¼ÑÐ] 291Çóµ÷¼Á +8 hhhhxn.. 2026-03-23 8/400 2026-03-23 23:15 by peike
[¿¼ÑÐ] 284Çóµ÷¼Á +3 yanzhixue111 2026-03-23 6/300 2026-03-23 22:58 by pswait
[¿¼ÑÐ] 327Çóµ÷¼Á +5 prayer13 2026-03-23 5/250 2026-03-23 22:11 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 269Çóµ÷¼Á +4 ÎÒÏë¶ÁÑÐ11 2026-03-23 4/200 2026-03-23 21:25 by pswait
[¿¼ÑÐ] ÉúÎïѧһ־Ը985£¬·ÖÊý349Çóµ÷¼Á +6 zxts12 2026-03-21 9/450 2026-03-23 18:37 by macy2011
[¿¼ÑÐ] 328Çóµ÷¼Á +4 LHHL66 2026-03-23 4/200 2026-03-23 14:55 by lbsjt
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +5 Surekei 2026-03-21 5/250 2026-03-22 14:39 by tcx007
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏ´ó£¬0703»¯Ñ§£¬·ÖÊý336£¬Çóµ÷¼Á +3 ÊÕµ½VS 2026-03-21 3/150 2026-03-21 18:42 by ѧԱ8dgXkO
[¿¼ÑÐ] Çóµ÷¼Á +3 .m.. 2026-03-21 4/200 2026-03-21 16:25 by barlinike
[¿¼ÑÐ] Çóµ÷¼Á +3 eation27 2026-03-20 3/150 2026-03-20 19:32 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û