| 查看: 1665 | 回复: 9 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[交流]
求高手翻译下面这段话
|
|||
| 造纸黑液中30%-35%左右为无机物，主要为NaOH、Na2SO4、Na2S、Na2SiO3、Na2CO3等，65%-70%为有机物，主要为木质素，以及残留的纤维素、半纤维素等。利用造纸黑液制备活性炭国内外研究比较多，但都是利用造纸黑液经酸析提取木质素后，再制备活性炭。但是其制备工艺复杂，收率低，所制备的活性炭灰分高，应用困难。从资源利用和黑液处理来说，最好是将黑液直接用于制备活性炭。本实验直接将造纸黑液与椰壳渣混合，以造纸黑液中残碱为活化剂，再补充一定量的活化剂KOH，制备活性炭。 |
回复此楼» 猜你喜欢
085500求调剂材料
已经有9人回复
-
工科273调剂
已经有7人回复
-
求助调剂，跨调
已经有4人回复
-
生物学调剂
已经有9人回复
-
一志愿哈工大 085600 277 12材科基求调剂
已经有22人回复
-
268分085602化学工程调剂
已经有25人回复
-
机械专硕270求调剂，接受跨专业
已经有14人回复
-
275求调剂
已经有10人回复
-
电气工程专硕320求调剂
已经有4人回复
-
农业管理302分求调剂
已经有3人回复
3楼2010-06-30 00:05:02
May2010
木虫 (著名写手)
- 翻译EPI: 3
- 应助: 9 (幼儿园)
- 金币: 3638.6
- 散金: 747
- 红花: 5
- 帖子: 1684
- 在线: 246.1小时
- 虫号: 824000
- 注册: 2009-08-07
- 性别: MM
- 专业: 化学环境污染与健康
★
wypward(金币+1):谢谢参与 2010-06-30 07:57:07
wypward(金币+1):谢谢参与 2010-06-30 07:57:07
| 30% -35% of the black liquor paper producing are inorganic compound, mainly containing NaOH, Na2SO4, Na2S, Na2SiO3, Na2CO3, etc.. 65% -70% are organic compound, mainly containing lignin and residual cellulose, hemicellulose, and so on. Black liquor is always used to prepare activated carbon at home and abroad. However, the preparation of activated carbon is based on the extraction of lignin after acid separation out of black liquor. The preparation process is complex with low yield and high ash content of activated carbon, which is difficult in application. For better resource use and handling of black liquor, black liquor is directly used to prepare activated carbon. In this study, black liquor was directly mixed with the coconut residue, using the alkali black liquor residual as an activator and certain amount of KOH as additional activator, to prepare activated carbon. |
2楼2010-06-29 23:06:27
4楼2010-06-30 00:07:26
googlesea
木虫 (著名写手)
- 翻译EPI: 1
- 应助: 3 (幼儿园)
- 金币: 4132.2
- 散金: 283
- 帖子: 1768
- 在线: 64小时
- 虫号: 592892
- 注册: 2008-09-05
- 性别: GG
- 专业: 资源化工
★ ★
zehuac(金币+1):谢谢参与了，呵呵 2010-06-30 14:38:19
发芽土豆(金币+1):谢谢参与 2010-06-30 14:48:32
fangjh(金币+5, 翻译EPI+1): 2010-07-02 09:13:43
zehuac(金币+1):谢谢参与了，呵呵 2010-06-30 14:38:19
发芽土豆(金币+1):谢谢参与 2010-06-30 14:48:32
fangjh(金币+5, 翻译EPI+1): 2010-07-02 09:13:43
| 30% -35% of the black liquor in papermaking(or pulping) is inorganic compounds, mainly containing NaOH, Na2SO4, Na2S, Na2SiO3, Na2CO3, etc.. 65% -70% are organic compounds, mainly containing lignin and residual cellulose, hemicellulose, and so on. Black liquor is always used to prepare activated carbon at home and abroad. However, the preparation of activated carbon is based on the extraction of lignin after acid separation out of black liquor. The preparation process is complex with low yield and high ash content of activated carbon, which is difficult in application. For better resource use and handling of black liquor, black liquor is directly used to prepare activated carbon. In this study, black liquor was directly mixed with the coconut residue, using the alkali black liquor residual as an activator and certain amount of KOH as additional activator, to prepare activated carbon. |
6楼2010-06-30 05:17:01
