采用纤维素与过量的氯乙烷及氢氧化钠反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。
Ethyl cellulose was synthesized successfully in one-step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.
阐述了一步法生产聚合硫酸铁新工艺的反应原理、工艺过程、特点及其产品在废水处理中的应用。
This paper presents the reaction principle, production procedures and characteristics of an one step process for the preparation of solid PFS, and its application in wastewater treatment.
结果表明,采用一步法合成二甲醚如果存在水汽变换反应,CO2的转化率为负值,如果催化剂可以控制不发生水汽变换反应,CO2的转化率为零。
The results indicated that the conversion of CO2 is negative if the watergas shift reaction exist and it will be zero if the catalyst can control no watergas shift reaction to take place.
第二种聚 酰亚胺聚合物是芳香族四酸二酐与芳香族二异氰酸酯,在有机溶剂中,在催化剂的作用下,一步法缩合反应制备得到;
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
本文进一步选用搅拌床反应器进行甲基三氯硅烷有机铝法转化反应。
It is found that methyltrichlorosilane is more reactive in an agitated bed reactor.
为提高最后一步反应的产率,采用均匀设计法进行实验设计。
A new experiment design method homogeneous design is utilized in order to raise the final step yield.
综述了乙酸松油酯的合成研究现状,讨论了一步法和两步法合成工艺及相应的反应机理。
The present situation of terpinyl acetate synthesis has been reviewed. One-step and two-steps process for the synthesis of terpinyl acetate and relevant reaction mechanism are discussed.
在本研究中,我们提出了一种新颖的一步法:马来酸酐化和反应性掺混可以在一台双螺杆挤出机里同时进行。
In this study, we proposed a novel one step method in which maleation and reactive blending occur simultaneously in a twin screw extruder.
本论文研究了在混合双溶剂存在下一步法合成三唑酮的反应。
This paper reports the reaction of one step-synthesizing triadimefonin bi-solvents systen.
对常规重叠延伸PCR技术进行了改进,改进后的方法称之为一步法重叠延伸pcr,减少了进型PCR反应的次数,提高了效率。
The common overlap extension PCR was improved and the new methods named as one-step overlap extension PCR, which can reduce the PCR times and improve the efficiency.
采用一步法和二步法研究了聚乙烯薄膜表面的N- 乙烯基吡咯烷酮光接枝反应,并用傅立叶变换红外光谱仪定性表征了反应结果。
The photografting polymerization of Nvinyl pyrrolidone (NVP) on the surface of LDPE film with photo grafting method was studied and LDPEgNVP was characterized by FTIR qualitatively.
采用一步法和二步法研究了聚乙烯薄膜表面的N- 乙烯基吡咯烷酮光接枝反应,并用傅立叶变换红外光谱仪定性表征了反应结果。
The photografting polymerization of Nvinyl pyrrolidone (NVP) on the surface of LDPE film with photo grafting method was studied and LDPEgNVP was characterized by FTIR qualitatively.
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