²é¿´: 555  |  »Ø¸´: 3
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

·ÉÌ쳬ÈË

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] Çó·­ÒëÒ»¶Î»°¡£3¾ä

ÒòΪ¶ÔÎÒÀ´ËµÕâ¶Î»°ºÜÖØÒª£¬ÎÒÅÂ×Ô¼ºÀí½âÆ«ÁË Çë´ó¼Ò°ïÎÒ¿´¿´ лл
Transesterification, being commonly acid-catalyzed, might be thought a function of the catalyst support and indeed our earlier work (5) showed this can be so. However, copper alone was also a catalyst under conditions similar to those used here,and, indeed, considerable conversion tookplace in an empty tube. Hence we are pessimistic about avoiding transesterification except at such low pressures that the overall course of dehydrogenation might also differ.
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

·ÉÌ쳬ÈË

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by myIDname at 2013-03-15 10:59:54
hanches·­ÒëµÃºÜºÃ£¬Ð¡²¹³äÒ»ÏÂÏ£º

copper alone was also a catalyst under conditions similar to those used here
ÔÚÀàËÆÓÚ±¾ÎÄ£¨±¾½Ì²ÄµÈ£©ËùʹÓõÄÌõ¼þÏ£¬Í­±¾ÉíÒ²ÊÇ´ß»¯¼Á¡£

ÒªµÄ¾ÍÊÇÕâ¾ä»° ¡£Ð»Ð»£¡
4Â¥2013-03-15 12:51:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

hanches

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

obscure nacissus

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
·ÉÌ쳬ÈË: ½ð±Ò+6, ¡ï¡ï¡ïºÜÓаïÖú 2013-03-15 12:50:25
Ï£ÍûûÀí½â´í~FYR

ͨ³£ÐèÒªËá´ß»¯µÄõ¥½»»»·´Ó¦Ò»°ãÈÏΪÊÇø´Ù·´Ó¦£¬¶øÇÒʵ¼ÊÉÏÎÒÃÇÔçÆÚµÄÑо¿Ò²Ö¤ÊµÓ¦¸Ã¾ÍÊÇÈç´Ë¡£µ«ÊÇ£¬ÔÚһЩÌõ¼þÏ£¬Í­±¾Éí¾ÍÊÇ´ß»¯¼Á£¬ÕâºÍÕâÀïʹÓõĴ߻¯¼Á£¨Ëᣩ£¬¶øÇÒ£¬¾ÍËãÔÚ¿ÕÊÔ¹ÜÀïÒ²ÓдóÁ¿·´Ó¦·¢Éú¡£Òò´Ë£¬ÎÒÃÇÈÏΪõ¥½»»»·´Ó¦ÄÑÒÔ±ÜÃ⣬³ýÁ˵ÍѹÏ£¬ÒòΪÔÚ¸ÃÌõ¼þÏÂÕûÌåµÄÍÑÇâ¹ý³Ì¿ÉÄÜÒ²»á·¢Éú±ä»¯¡£

ÕûÌåµÄÒâ˼¾ÍÊÇ£¬°´ÕÕÒ»°ãÈÏʶõ¥½»»»·´Ó¦ÊDz»·¢ÉúµÄ£¬µ«ÊÇÒòΪËùÊöÔ­Òò£¬Ëü»á·¢Éú£¬Òò´ËÖ»ÄÜ¿¿µÍѹÀ´±ÜÃâ¡£
Life-Has-Killed-The-Dream-I-Dreamed.
2Â¥2013-03-14 21:56:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

myIDname

ľ³æ (ÖøÃûдÊÖ)

ÈËÃñ´ó»áÌÃÊ×ϯÇå½à¹¤

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
·ÉÌ쳬ÈË: ½ð±Ò+4, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-03-15 12:50:42
hanches: ½ð±Ò+2, ллÐÞ¸Ä~~½±ÀøBB~~~ 2013-03-19 22:14:06
hanches·­ÒëµÃºÜºÃ£¬Ð¡²¹³äÒ»ÏÂÏ£º

copper alone was also a catalyst under conditions similar to those used here
ÔÚÀàËÆÓÚ±¾ÎÄ£¨±¾½Ì²ÄµÈ£©ËùʹÓõÄÌõ¼þÏ£¬Í­±¾ÉíÒ²ÊÇ´ß»¯¼Á¡£
ÎÒÃÇÕâÀïÓÐÓ¸ҵÄÈËÃñ/Üê·À¶ÂÆÒÔÆôɽÁÖ/ÎÒÃÇÕâÀïÓÐÎÞÇîµÄÉúÃü/ˮţµ¾Ã×Ïã½¶ÓñÀ¼»¨
3Â¥2013-03-15 10:59:54
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 288Çóµ÷¼Á +15 ÓÚº£º£º£º£ 2026-03-19 15/750 2026-03-19 22:41 by ѧԱ8dgXkO
[¿¼ÑÐ] ÕÐÊÕµ÷¼Á˶ʿ +4 lidianxing 2026-03-19 10/500 2026-03-19 16:05 by Óà÷ëÓà
[¿¼ÑÐ] Ò»Ö¾Ô¸Ìì½ò´óѧ»¯Ñ§¹¤ÒÕרҵ£¨081702£©315·ÖÇóµ÷¼Á +11 yangfz 2026-03-17 11/550 2026-03-19 15:06 by houyaoxu
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤Çóµ÷¼Á +7 Ϊѧ666 2026-03-16 7/350 2026-03-19 14:48 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] 286Çóµ÷¼Á +6 lemonzzn 2026-03-16 10/500 2026-03-19 14:31 by lemonzzn
[¿¼ÑÐ] »¯Ñ§Çóµ÷¼Á +3 ÁÙÔó¾³llllll 2026-03-17 4/200 2026-03-19 13:59 by houyaoxu
[½Ìʦ֮¼Ò] ½¹ÂÇ +9 Ë®±ùÔÂÔÂÒ°Íà 2026-03-13 13/650 2026-03-19 09:50 by otani
[¿¼ÑÐ] 274Çóµ÷¼Á +6 S.H1 2026-03-18 6/300 2026-03-19 09:34 by »¨µêÏà¼û
[¿¼ÑÐ] ±¾¿ÆÖ£ÖÝ´óѧÎïÀíѧԺ£¬Ò»Ö¾Ô¸»ª¿Æ070200ѧ˶£¬346Çóµ÷¼Á +4 ÎÒ²»ÊÇÒ»¸ù´Ð 2026-03-18 4/200 2026-03-19 09:11 by ¸¡ÔÆ166
[¿¼ÑÐ] 0703»¯Ñ§ 305Çóµ÷¼Á +4 FY_yy 2026-03-14 4/200 2026-03-19 05:54 by anny19840123
[¿¼ÑÐ] 297Çóµ÷¼Á +8 Ï·¾«µ¤µ¤µ¤ 2026-03-17 8/400 2026-03-18 14:30 by laoshidan
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄϽ»´ó£¬Çóµ÷¼Á +4 ²Ä»¯ÖðÃÎÈË 2026-03-18 4/200 2026-03-18 14:22 by 007_lilei
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +10 z1z2z3879 2026-03-16 13/650 2026-03-18 14:20 by 007_lilei
[¿¼ÑÐ] 0854£¬¼ÆËã»úÀàÕÐÊÕµ÷¼Á +3 ºúÀ±ÌÀ·ÅÌÇ 2026-03-15 6/300 2026-03-18 12:09 by Éϰ¶Éϰ¶¡­¡­..
[¿¼²©] »·¾³ÁìÓòÈ«¹úÖØµãʵÑéÊÒÕÐÊÕ²©Ê¿1-2Ãû +3 QGZDSYS 2026-03-13 5/250 2026-03-18 11:13 by QGZDSYS
[¿¼ÑÐ] ÉúÎïѧ071000 329·ÖÇóµ÷¼Á +3 ÎÒ°®ÉúÎïÉúÎﰮΠ2026-03-17 3/150 2026-03-18 10:12 by macy2011
[¿¼ÑÐ] 293Çóµ÷¼Á +11 zjlµÄºÅ 2026-03-16 16/800 2026-03-18 08:10 by zhukairuo
[¿¼ÑÐ] 085601Çóµ÷¼Á +4 Du.11 2026-03-16 4/200 2026-03-17 17:08 by ruiyingmiao
[¿¼ÑÐ] Ò»Ö¾Ô¸£¬¸£ÖÝ´óѧ²ÄÁÏר˶339·ÖÇóµ÷¼Á +3 ľ×ÓmomoÇàÕù 2026-03-15 3/150 2026-03-17 07:52 by laoshidan
[¿¼ÑÐ] Öпƴó²ÄÁÏר˶319Çóµ÷¼Á +3 ÃÏöβÄÁÏ 2026-03-13 3/150 2026-03-14 18:10 by houyaoxu
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û