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[热点] 小论文投稿 必上岸168 2025-12-14 刚刚
[工艺设计] [关贴]【求助】海绵的成分 (1/341) taojia7560 2010-09-21 2010-09-22 01:49:21 by wstalent
[工艺设计] [关贴]【求助】重铬酸钾基准试剂的制备 (3/403) tanchaowen 2010-08-25 2010-09-21 22:38:10 by 梓轩
[工艺设计] [关贴]【求助】碘量法测臭氧的有关问题 (0/211) wang19860311 2010-09-21 2010-09-21 15:55:42 by wang19860311
[工艺设计] [关贴]【求助】求助三羟基苯乙酮生产工艺 (1/232) 冰玉嫣儿 2010-09-19 2010-09-21 11:43:24 by huilizhang
[工艺设计] [关贴]【求助】有关大孔树脂 (7/977) wy0822 2010-09-15 2010-09-20 19:36:18 by wy0822
[工艺设计] [关贴]【讨论】有做过CPVC的吗?有时间一起讨论一下啊……………… (2/274) aiqiang5858 2010-09-16 2010-09-20 15:41:45 by aiqiang5858
[工艺设计] [关贴]【求助】谁了解颜料生产过程中的污染物主要有哪些? (1/698) yfw008 2010-09-20 2010-09-20 12:00:06 by li221918
[工艺设计] [关贴]【求助】盐酸脱色 (0/1154) zc736 2010-09-20 2010-09-20 11:56:00 by zc736
[工艺设计] [关贴]【求助】液硫的热容 (0/337) 降灵 2010-09-19 2010-09-19 17:28:44 by 降灵
[工艺设计] [关贴]【求助】mtbe直接和酸反应制取叔丁酯 (6/1084) nicolasjing 2010-08-18 2010-09-19 14:09:44 by nicolasjing
[工艺设计] [关贴]【求助】关于精制棉废水治理工艺 (0/211) 198762 2010-09-18 2010-09-18 21:40:03 by 198762
[工艺设计] [关贴]【求助】哪里可以弄到油田示踪剂软件? (金币≥20)(0/13) luanming 2010-09-18 2010-09-18 19:17:42 by luanming
[工艺设计] [关贴]【求助】中空纤维膜封端口请教 (1/292) guopeng19873 2010-09-07 2010-09-18 14:20:42 by kingrain0101
[工艺设计] [关贴]【其他】51自学网-专业培训老师录制的视频教程,让学习变得很轻松 (0/635) 七品大员 2010-09-18 2010-09-18 09:13:55 by 七品大员
[工艺设计] [关贴]【求助】乙烯裂解装置碱洗 (0/284) jila322 2010-09-18 2010-09-18 08:43:12 by jila322
[工艺设计] [关贴]【求助】离子交换树脂的填充高度的要求 (3/1124) Howard12 2010-04-29 2010-09-17 15:48:56 by hg30717580
[工艺设计] [关贴]【求助】求助 (0/206) bamboodo 2010-09-17 2010-09-17 13:38:52 by bamboodo
[工艺设计] [关贴]【求助】共浸渍,是个怎样的浸渍方法哦?、 (0/1126) bamboodo 2010-09-17 2010-09-17 13:28:13 by bamboodo
[工艺设计] [关贴]【求助】请问砂芯漏斗怎么进行抽滤?    ( 1 2 ) (11/3596) sunshine605 2010-09-16 2010-09-17 11:45:08 by leafwu
[工艺设计] [关贴]【求助】N,N-二甲基甲酰胺蒸馏后变色 (7/1955) classic_b 2010-08-21 2010-09-17 11:31:41 by lccl
[工艺设计] [关贴]【求助】产品发粘 (8/610) 深思冰蓝 2010-09-14 2010-09-16 20:25:33 by 深思冰蓝
[工艺设计] [关贴]【求助】请教氧化镁问题 (7/1290) yafa520 2010-08-18 2010-09-16 16:48:06 by yanan0210
[工艺设计] [关贴]【求助】哪位知道工业纯H2的氧分压大概为多少? (0/326) lyxlxl 2010-09-16 2010-09-16 15:29:45 by lyxlxl
[工艺设计] [关贴]【求助】如何除去盐酸中的石蜡油 (5/802) zhyanhobby 2010-09-13 2010-09-16 10:01:55 by 0523asia
[工艺设计] [关贴]【求助】搅拌 结晶    ( 1 2 ) (17/1983) adong473 2010-09-03 2010-09-15 18:26:02 by yansheng6375
[工艺设计] [关贴]【求助】请教游离酸的问题 (5/993) wg0301050510 2010-09-14 2010-09-15 11:49:31 by wg0301050510
[工艺设计] [关贴]【求助】金属表面催化液替代化学电镀技术是否可以用于实际生产? (0/250) yinjinchao 2010-09-15 2010-09-15 09:22:28 by yinjinchao
[工艺设计] [关贴]【求助】求氧芴提纯精制的方法 (0/191) wandersolo 2010-09-14 2010-09-14 20:51:58 by wandersolo
[工艺设计] [关贴]【求助】求助CdO(氧化镉)与CdCO3(碳酸镉)的熔点、沸点。 (1/815) zhanshi011 2010-09-14 2010-09-14 15:59:17 by kkyx001
[工艺设计] [关贴]【求助】如何从硫酸和硫酸铝的混合溶液中提取硫酸 (3/595) joy78 2010-08-16 2010-09-14 12:29:07 by 溶溶月淡淡风
[工艺设计] [关贴]【求助】化学反应中pH的控制 (1/269) tbzhupy 2010-09-14 2010-09-14 11:24:03 by 0523asia
[工艺设计] [关贴]【资源】购买丙烯酸与聚氨酯合成乳液 (0/215) charezhou 2010-09-14 2010-09-14 10:37:44 by charezhou
[工艺设计] [关贴]【求助】请问那里了解美国SHANGSTON变温变压分子筛吸附脱水工艺 (1/284) xxqm 2010-09-13 2010-09-14 10:16:20 by xxqm
[工艺设计] [关贴]【求助】90-120℃的石油醚做溶剂的反应能用空压压滤吗? (3/524) huanshou 2010-09-13 2010-09-14 08:32:38 by sqz920
[工艺设计] [关贴]【求助】三甘醇脱水 (6/687) qieziqi 2010-09-10 2010-09-13 19:50:58 by liaow86
[工艺设计] [关贴]【求助】液相和气相 (0/217) alan_fang 2010-09-13 2010-09-13 18:53:09 by alan_fang
[工艺设计] [关贴]【求助】什么是polish filtration? (3/1764) wangwei51669 2010-09-09 2010-09-13 18:19:12 by wangwei51669
[工艺设计] [关贴]【求助】如何除去DMF中少量的水分    ( 1 2 ) (金币≥100)(13/107) s7145815 2010-09-06 2010-09-12 13:51:56 by s7145815
[工艺设计] [关贴]【求助】关于制备负载型催化剂 (3/432) bamboodo 2010-09-09 2010-09-11 11:54:38 by mdandqq
[工艺设计] [关贴]【求助】NRTL求解活度系数展开式 (0/453) muzili2008 2010-09-11 2010-09-11 10:48:52 by muzili2008
[工艺设计] [关贴]【求助】钻井液技术 (1/243) 寒水依痕 2010-09-03 2010-09-10 18:18:51 by 寒水依痕
[工艺设计] [关贴]【求助】反应产品颗粒细,结晶时拿不出东西    ( 1 2 3 ) (21/1324) gxh2148 2010-08-27 2010-09-10 16:22:08 by tbzhupy
[工艺设计] [关贴]【求助】10金币求助一道热量计算题目    ( 1 2 ) (14/1156) guyue_692 2010-08-06 2010-09-10 09:45:54 by pavilion123
[工艺设计] [关贴]【讨论】化工生产过程中影响颜色的因素 (0/375) Sky2N78 2010-09-09 2010-09-09 11:48:52 by Sky2N78
[工艺设计] [关贴]【求助】造纸工艺的探求 (0/227) fangjianmirror 2010-09-09 2010-09-09 11:44:03 by fangjianmirror
[工艺设计] [关贴]【求助】sol-gel 制膜问题 (6/826) wdzhou 2010-07-14 2010-09-08 22:32:25 by wdzhou
[工艺设计] [关贴]【求助】制备LaCl3 (2/329) ludan3998 2010-09-08 2010-09-08 13:23:03 by hanjinzhu
[工艺设计] [关贴]【求助】屋顶防潮涂料中的问题 (0/190) sltmac 2010-09-07 2010-09-07 15:06:00 by sltmac
[工艺设计] [关贴]【求助】阴离子型聚丙烯酰胺和硫酸铝 (0/445) kaavie68 2010-09-06 2010-09-06 21:38:51 by kaavie68
[工艺设计] [关贴]【求助】钢铁快速发黑剂配方 (0/360) guolianshun 2010-09-06 2010-09-06 17:44:03 by guolianshun
[工艺设计] [关贴]【讨论】苯环上硝化能否用硝酸钾和盐酸 (4/1370) libaoling 2010-08-30 2010-09-06 14:45:06 by libaoling
[工艺设计] [关贴]【求助】絮凝物如何分离    ( 1 2 3 ) (23/1650) pananjun 2010-08-15 2010-09-06 12:22:15 by hanjinzhu
[工艺设计] [关贴]【求助】哪里有免费的电镀表面处理相关文献啊? (0/318) 白色乌鸦 2010-09-06 2010-09-06 11:31:18 by 白色乌鸦
[工艺设计] [关贴]【求助】氯沙坦钾合成路线 (4/1292) Tycloss 2010-09-01 2010-09-06 09:34:52 by Tycloss
[工艺设计] [关贴]【求助】求研发流程图 (0/249) 107278161713 2010-09-05 2010-09-05 12:49:49 by 107278161713
[工艺设计] [关贴]【求助】癸二酸与氢氧化钠的反应(纯化) (1/840) xiangli-chen 2010-08-31 2010-09-05 11:34:21 by xiangli-chen
[工艺设计] [关贴]【求助】实验室里黄酮合成方法 (2/441) jianglian 2010-06-29 2010-09-05 11:33:13 by 888654
[工艺设计] [关贴]【求助】氯化钙含量国标做法 (2/265) haiming0506 2010-09-02 2010-09-04 14:21:39 by haiming0506
[工艺设计] [关贴]【求助】N-乙酰丝氨酸和苯胺接肽产率底,怎么提高产率? (0/179) h99910 2010-09-03 2010-09-03 19:50:59 by h99910
[工艺设计] [关贴]【求助】如何用筛子筛分 (3/358) ody2004 2010-09-03 2010-09-03 14:29:36 by cocol
[工艺设计] [关贴]【求助】最近导师让做负压精馏的中式实验,高手指点下用什么物系比较理想 (6/1062) tucp 2010-08-31 2010-09-03 11:00:19 by liulytd
[工艺设计] [关贴]【求助】生产上如何使用叠氮化钠! (2/326) zhjzhong 2010-08-30 2010-09-02 13:02:21 by zhjzhong
[工艺设计] [关贴]【求助】去除工业氯化钠中泥土类杂质    ( 1 2 ) (13/1370) guangyu5985 2010-07-23 2010-09-02 11:57:03 by libaoling
[工艺设计] [关贴]【求助】煤焦油中的游离碳和灰分 (2/1005) evaeva1028 2010-08-26 2010-09-02 11:26:20 by leafwu
[工艺设计] [关贴]【讨论】羧酸酯碱性条件下水解能彻底不? (1/669) fww6699621 2010-09-01 2010-09-01 19:41:13 by jzhh1970
[工艺设计] [关贴]【求助】关于碱金属如何测定的问题 (0/281) taoding 2010-09-01 2010-09-01 16:43:41 by taoding
[工艺设计] [关贴]【求助】厄贝沙坦的合成 (2/705) 450123676 2010-04-06 2010-09-01 15:50:40 by xinhu
[工艺设计] [关贴]【求助】求助关于MEA吸收CO2及其解吸的工艺设计 (0/190) ylj007 2010-09-01 2010-09-01 12:40:23 by ylj007
[工艺设计] [关贴]【讨论】关于一种胶水的化学成分检测 (0/157) 林木中 2010-09-01 2010-09-01 10:52:34 by 林木中
[工艺设计] [关贴]【交流】EDI水处理电阻率的问题 (5/1278) guohuanyu 2010-08-25 2010-09-01 08:47:14 by hg30717580
[工艺设计] [关贴]【交流】二甲醚合成? (0/286) eszhan 2010-09-01 2010-09-01 06:34:03 by eszhan
[工艺设计] [关贴]【求助】煤头尿素生产工艺课件 (0/266) dachun 2010-08-31 2010-08-31 20:22:48 by dachun
[工艺设计] [关贴]【求助】求助:兰炭 (1/389) mqy0502 2010-08-31 2010-08-31 18:26:34 by 良兴尹
[工艺设计] [关贴]【求助】硫化钠燃烧 (0/576) leafwu 2010-08-31 2010-08-31 16:48:30 by leafwu
[工艺设计] [关贴]【求助】尼龙66盐提取问题(工业) (0/406) 我很笨 2010-08-31 2010-08-31 14:18:23 by 我很笨
[工艺设计] [关贴]【求助】如何提高二次蒸汽的温度以用来再次利用 (8/1570) ckr1988 2010-08-05 2010-08-31 08:01:46 by mingyanliu
[工艺设计] [关贴]【求助】求助 (0/212) zhyanqi 2010-08-30 2010-08-30 22:01:09 by zhyanqi
[工艺设计] [关贴]【求助】请教管线探伤能否对管线中的丙烯产生受激辐射 (0/191) 清水深渊 2010-08-30 2010-08-30 14:56:26 by 清水深渊
[工艺设计] [关贴]【求助】关于铸造自硬呋喃树脂用磺酸固化剂 (1/643) 290150668 2010-08-18 2010-08-30 11:12:03 by 290150668
[工艺设计] [关贴]【求助】反应后产生氢氰酸,如何工艺设计? (0/526) zhjzhong 2010-08-30 2010-08-30 11:10:58 by zhjzhong
[工艺设计] [关贴]【求助】请问:环氧氯丙烷水解反应使用的固体酸催化剂 (0/435) momoddd 2010-08-30 2010-08-30 10:44:26 by momoddd
[工艺设计] [关贴]【交流】想请教一下下布洛芬粗品精制的问题。 (2/701) 高学顺 2010-08-24 2010-08-30 07:31:18 by lijixiang7709
[工艺设计] [关贴]【求助】哪位达人能告诉我这是工艺叫什么?    ( 1 2 3 ) (20/1120) xiachong2004 2010-06-18 2010-08-29 21:38:01 by oneheart
[工艺设计] [关贴]【求助】油脂制取 (5/659) 悠悠我心7503 2010-07-13 2010-08-29 21:08:12 by oneheart
[工艺设计] [关贴]【求助】喷雾干燥    ( 1 2 ) (金币≥50)(17/106) powerkai6153 2010-08-22 2010-08-29 18:52:37 by lazyboy
[工艺设计] [关贴]【求助】由穿透曲线怎样求吸附量 (2/4410) yuzhoushizhe111 2010-08-25 2010-08-29 10:58:38 by yuyanfeiwu
[工艺设计] [关贴]【求助】化工过程中产生氢气的排除    ( 1 2 ) (10/862) kxl625 2010-08-22 2010-08-28 10:01:51 by oneheart
[工艺设计] [关贴]【求助】急求玉米生产淀粉浸泡中间过程检测问题 (3/648) 莹莹2031 2010-08-05 2010-08-28 09:54:59 by oneheart
[工艺设计] [关贴]【求助】聚乙二醇相关性质    ( 1 2 ) (10/1511) 小拉塔 2010-08-10 2010-08-28 09:45:14 by oneheart
[工艺设计] [关贴]【求助】在甲胺基阿维菌素苯甲酸盐生产中有用乙酸乙酯的没啊,含量稳定么 (1/368) wqlx456123 2010-01-07 2010-08-27 14:38:07 by 苍狼一笑
[工艺设计] [关贴]【求助】现代有机合成试剂:性质、制备和反应 (2/779) 1963hyy 2010-08-27 2010-08-27 13:17:04 by 1963hyy
[工艺设计] [关贴]【求助】求电解槽结构图 (8/1926) xiuling27 2010-06-18 2010-08-27 10:52:00 by 再现优灵
[工艺设计] [关贴]【求助】请教:溶液的PH值 (9/688) chenlink 2010-07-21 2010-08-27 10:33:40 by fangwei323
[工艺设计] [关贴]【求助】电解锰的存储问题 (1/295) 252944767 2010-08-20 2010-08-27 10:25:00 by 再现优灵
[工艺设计] [关贴]【求助】关于精馏塔操作    ( 1 2 ) (15/2581) waxs79 2010-05-06 2010-08-27 10:21:52 by luohong757
[工艺设计] [关贴]【求助】丁二烯尾气处理 (1/378) linxing442 2010-08-08 2010-08-25 19:27:07 by hg30717580
[工艺设计] [关贴]【求助】大孔树脂的洗脱机理 (5/1470) wy0822 2010-07-22 2010-08-25 19:10:23 by hg30717580
[工艺设计] [关贴]【求助】工艺方案 (1/309) 随叶而飘 2010-08-24 2010-08-25 11:36:53 by houhou1986
[工艺设计] [关贴]【求助】在光纤上镀银 (3/493) b20414038 2010-07-15 2010-08-25 10:55:29 by b20414038
[工艺设计] [关贴]【求助】乙二醛的工业生产方法 (2/319) 瘦男人 2010-08-24 2010-08-25 08:41:25 by 瘦男人
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