共查询到16条相似文献,搜索用时 78 毫秒
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国产J103H型甲烷化催化剂在抚顺乙烯装置上的应用 总被引:1,自引:0,他引:1
介绍了抚顺乙烯甲烷化系统工艺及运行状态,比较了美国的C13-4-04催化剂与国产J103H催化剂,结果显示:J103H催化剂性能指标达到生产要求。 相似文献
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介绍昌邑凯特新材料有限公司KC-103S型预硫化耐硫变换催化剂在中煤陕西榆林能源化工有限公司1.8 Mt·a~(-1)合成甲醇装置上的工业应用情况。KC-103S型预硫化耐硫变换催化剂在轴径向变换炉上的应用结果表明,其强度稳定性、变换活性和活性稳定性优良,并能大大缩短开车时间和节约开车费用,降低开车过程床层超温的风险,而且催化剂储存、运输和装填等过程中无需氮气保护。 相似文献
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针对回转窑的轮带与托轮及大齿圈与传动齿轮之间倾斜度的动态检测需要,设计一种旋转体倾斜度无线测量仪。该仪器主要包括以倾角传感器SCA103T-D04、A/D芯片ADS7606和单片机MSP43F149为核心的硬件电路和PC笔记本电脑。其中通过C语言和Lab VIEW软件编写下位机和上位机的程序。SCA103T-D04有内部温度传感器,通过温度补偿算法提高测量精度。实验结果显示,该仪器倾角测量精度为0.02°。 相似文献
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通过温度试验、盐雾试验、交变湿热试验和耐腐蚀试验考察了4种带锈底漆分别与S04-60面漆组成的涂层体系在简单处理后的铁锈板和铝锈板上的性能。试验结果表明,H53-32环氧带锈防锈底漆和S04-60丙烯酸聚氨酯面漆配套性良好,其涂层体系在两种基材上的初始附着力均为2级,高温贮存、低温贮存、温度冲击、盐雾试验后外观及附着力均无明显变化,交变湿热试验后外观完好,铁板附着力3级,铝板附着力2级,耐腐蚀试验时间均超过720 h,综合性能最佳,可以用作装备维修时的铁基材和铝基材的防护底漆。 相似文献
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《精细与专用化学品》2006,(Z1)
编号报告名称(英文/中文)发表时间页数02/03-1Acetic Acid/醋酸09/0316097/98-1Acetic Acid/Acetic Anhydride/醋酸和醋酸酐01/9914694/95S9Acetic Acid Directly from Ethylene/由乙烯直接制醋酸12/967499/00S5Acetic Acid via Ethane Oxidation/乙烷氧化制醋酸01/019503/04S1 相似文献
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对于制造硫化蓝染料的中间体,磷-甲基靛苯胺Ⅰ的合成过程,研究了应用光度计的控制方法.经确定试样以多量82%硫酸稀释后,反应实际上立刻停止进行,而Ⅰ在82%的硫酸中又非常稳定.随后测定了Ⅰ在82%硫酸溶液中对波长574和428毫微米的克分子消光系数分别为2.44×10~4和2.27×10~3(公升-克分子~(-1)-厘米~(-1)),而对亚硝基苯酚的则分别为0和5.40×10~3;并证明可以利用光度计法来分析两者在混合溶液中的各别含量.应用本法测定的反应速率常数与文献上发表过的数字相符,因此肯定在控制Ⅰ的合成过程上就用光度计法的可靠性.试用本法观察实际生产情况的结果,发现靛苯胺在反应混合物中的存在量往往随着反应时间而上升至一个最高值,接着再下降.由此推测,采用本法来控制生产是具有实际意义的. 相似文献
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On account of the high toxicity of nitrobenzene, 1,2‐dichloroethane was used as solvent. A novel water‐compatible hyper‐cross‐linked resin functionalized with amino‐group (denoted as GQ‐04) was synthesized to remove salicylic acid (SA) in aqueous solution. The maximum adsorption capacity of SA onto GQ‐04 was observed at pH of 1.88. The adsorption capacity increased with the increasing salt concentration. The adsorption kinetic data obeyed the pseudo‐second‐order rate equation and the adsorption isotherms can be characterized by Freundlich model. The intraparticle diffusion was the main rate‐controlling step. The saturated adsorption quantity of SA was up to 119.9 mg·mL‐1 according to the dynamic adsorption at 293 K. The resin could be regenerated by the 6 BV mixed solution of 80% ethanol and 0.5 mol/L NaOH. The size matching and hydrogen bonding between GQ‐04 and SA and the micropore structure resulted in the larger adsorption capacity in comparison with XAD‐4 and H103 resin. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013 相似文献
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Eriko Koide Mikaela L. Mohardt Zainab M. Doctor Annan Yang Mingfeng Hao Katherine A. Donovan Christina C. Kuismi Alissa J. Nelson Kathryn Abell Mike Aguiar Jianwei Che Matthew P. Stokes Tinghu Zhang Andrew J. Aguirre Eric S. Fischer Nathanael S. Gray Baishan Jiang Behnam Nabet 《Chembiochem : a European journal of chemical biology》2023,24(19):e202300535
Focal adhesion kinase (FAK) is an attractive drug target due to its overexpression in cancer. FAK functions as a non-receptor tyrosine kinase and scaffolding protein, coordinating several downstream signaling effectors and cellular processes. While drug discovery efforts have largely focused on targeting FAK kinase activity, FAK inhibitors have failed to show efficacy as single agents in clinical trials. Here, using structure-guided design, we report the development of a selective FAK inhibitor (BSJ-04-175) and degrader (BSJ-04-146) to evaluate the consequences and advantages of abolishing all FAK activity in cancer models. BSJ-04-146 achieves rapid and potent FAK degradation with high proteome-wide specificity in cancer cells and induces durable degradation in mice. Compared to kinase inhibition, targeted degradation of FAK exhibits pronounced improved activity on downstream signaling and cancer cell viability and migration. Together, BSJ-04-175 and BSJ-04-146 are valuable chemical tools to dissect the specific consequences of targeting FAK through small-molecule inhibition or degradation. 相似文献
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Xia Wu Jingjing Zhang Shan Liu Qinghe Gao Anxin Wu 《Advanced Synthesis \u0026amp; Catalysis》2016,358(2):218-225
An expedient cleavage of the C S bond of dimethyl sulfoxide (DMSO) has been developed for the preparation of substituted pyridines from ketones. In this transformation, the co‐product formic acid was formed from ammonium formate, which acted as an important catalyst for the reaction. Notably, this transformation exhibited a broad substrate scope towards a wide variety of different ketones to give the corresponding substituted pyridines in high yields. Mechanistic studies suggested that dimethyl sulfoxide delivered a methylene fragment, which was subsequently captured in situ to give a pyridine.