24小时热门版块排行榜    

Znn3bq.jpeg
查看: 933  |  回复: 3

poseidon_

金虫 (小有名气)

[交流] 求英文高手翻译一段话

三乙醇胺水溶液浓度对HNBR胶液中铑催化剂脱除的影响
(RhCl(PPh3)3中的铑为三配位、一价,外层16个电子,得2个电子达到18电子的稳定结构,HNBR分子结构中含丙烯腈,由于—CN上的N原子可提供孤对电子正好与铑催化剂形成配位化合物,(RhCl(PPh3)3中的铑与HNBR分子链上的—CN有一定的配位作用而不易被脱除。三乙醇胺中的N在氧气的作用下与铑空轨道的配位能力强于HNBR中的—CN,可以将铑从HNBR夺取过来,三乙醇胺与铑配位形成的络合物具有极性,极性决定了这种络合物在水中要比在二甲苯中有更好的溶解性,因此极易溶于水,从而可以将(RhCl(PPh3)3从HNBR胶液中脱除到水相。脱除作用化学反应式:

三乙醇胺同时作为络合剂、萃取剂,其浓度对铑催化剂的脱除意义重大。

» 猜你喜欢

姿态
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

yanghongmei

木虫 (正式写手)


wypward(金币+1):谢谢参与 2010-10-20 10:38:26
HNBR triethanolamine aqueous solution by concentration on the removal of rhodium catalyst (RhCl (PPh3) 3 in the three coordinate rhodium, a price of 16 outer electrons have two E-stable structure up to 18 e, HNBR with the molecular structure of PAN, as the N-CN atoms can provide the lone pair electrons coincides with the formation of coordination compounds rhodium catalyst, (RhCl (PPh3) 3 in the Rh and HNBR molecular chain-CN coordination to a certain extent role not easily removed. triethanolamine N in the role of oxygen and rhodium coordination empty orbital is stronger than in the HNBR-CN, can win over rhodium from HNBR, triethanolamine and rhodium coordination network formed polar compounds, polar determine that this complex in water than in a better solubility in xylene, so easily soluble in water, which can be (RhCl (PPh3) 3 glue from HNBR the removal of the aqueous phase. Removal of the role of chemical reaction: triethanolamine as a complexing agent at the same time, extraction solvent, its concentration on the removal of rhodium catalyst is significant.
每一天都是崭新的!
2楼2010-10-18 08:58:54
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

sunfleur

禁虫 (小有名气)

本帖内容被屏蔽

3楼2010-10-18 09:18:58
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

poseidon_

金虫 (小有名气)

太糊弄人了啊

太糊弄人了啊啊啊啊啊啊啊
姿态
4楼2010-10-18 15:22:24
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 poseidon_ 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 087100初试311求调剂 +3 任雅琴 2026-04-09 3/150 2026-04-09 22:42 by lbsjt
[考研] 一志愿华工085600 331分 +6 天下ww 2026-04-09 6/300 2026-04-09 18:59 by l_paradox
[考研] 材料专硕初试分332一志愿西北工业大学, +12 故人?? 2026-04-09 12/600 2026-04-09 18:34 by Ccclqqq
[考研] 332,085601求调剂 +12 ydfyh 2026-04-09 14/700 2026-04-09 17:28 by wp06
[考研] 一志愿电子科技大学085600材料与化工 329分求调剂 +14 Naiko 2026-04-04 14/700 2026-04-09 16:56 by luoyongfeng
[考研] 085501机械专硕 302分 不挑专业求调剂 +5 汪某. 2026-04-09 5/250 2026-04-09 15:38 by 蒋皓禹
[考研] 334求调剂 +16 Riot2025 2026-04-08 17/850 2026-04-09 09:28 by wdyheheeh
[考研] 生物学328分求调剂 +9 闪电kkl 2026-04-08 10/500 2026-04-08 21:42 by liuhuiying09
[考研] 材料专硕 调剂 +17 CXN123456 2026-04-03 17/850 2026-04-08 11:10 by lijunpoly
[考研] 277求调剂 +4 考研调剂lxh 2026-04-06 6/300 2026-04-08 10:40 by 逆水乘风
[考研] 277、学硕,求调剂 数一104, +11 瓶子PZ 2026-04-07 12/600 2026-04-07 23:30 by 一只好果子?
[考研] 085602调剂 初试总分335 +3 19123253302 2026-04-06 3/150 2026-04-07 18:00 by jp9609
[考研] 考研调剂 +7 15615482637 2026-04-04 7/350 2026-04-06 22:56 by chenzhimin
[考研] 生物学学硕求调剂:351分一志愿南京师范大学生物学专业 +6 …~、王…~ 2026-04-06 7/350 2026-04-06 18:54 by macy2011
[考研] 材料调剂 +5 小刘同学吖吖 2026-04-06 5/250 2026-04-06 18:34 by sherry_1901
[考研] 362求调剂一志愿中国石油大学 +4 我要考大 2026-04-06 6/300 2026-04-06 14:11 by 无际的草原
[考研] 一志愿武汉理工大学080200机械工程308分,求调剂 +4 终不似从前 2026-04-05 4/200 2026-04-06 11:46 by 考研学校招点人
[考研] 材料专硕(0856) 339分求调剂 +10 哈哈哈鹅哈哈哈 2026-04-04 10/500 2026-04-05 18:51 by 蓝云思雨
[考研] 313求调剂 +5 海日海日 2026-04-04 5/250 2026-04-05 15:52 by jndximd
[考研] 机械专硕297 +3 Afksy 2026-04-03 3/150 2026-04-03 14:24 by 1753564080
信息提示
请填处理意见