any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
双语例句
1. Gas chromatography was used to analyze the residue of butene-fipronil in rice.
研究并建立丁烯氟虫腈在大米中残留分析方法。
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2. The isomerization of butene-1 occurred in kinetic region with 30 ~ 40 mesh catalyst.
当用30 ~40目催化剂时丁烯- 1异构化在动力学区域。
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3. In addition, alkaline ligands can prevent isomerization of 1 butene to 2 butene effectively.
另外，碱性配体能有效地防止1 -丁烯异构成2 -丁烯。
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4. The kinetic equations obey the L-H mechanism of triangular reaction of isomerization of butene.
动力学方程服从丁烯异构化三角反应的L - H机理。
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5. The butene-1 (co) polymers show a good balance between processability and elastomeric behavior.
该丁烯- 1(共)聚合物表现出加工性与弹性体行为之间良好的均衡。
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6. The critical parameters of 1-pentene, 3-methyl-1-butene, 1-hexene and isopropyl acetate were determined.
测定了1-戊烯、3-甲基-1-丁烯、1-己烯和乙酸异丙酯的临界参数。
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7. The mass fraction of n-butene in mixed C4 from catalytic cracking after etherized was approximately 40%.
混合c 4中含有质量分数约为40%的正丁烯，是生产丙烯的优质原料。
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8. Compositions of the present invention include a hot melt adhesives that includes a copolymer of butene-1.
本发明的组合物包括含有1 -丁烯共聚物的热熔粘合剂。
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9. Results showed that ethylene-hexene copolymer had a higher SCG resistance than ethylene-butene copolymer.
结果表明，己烯共聚聚乙烯管材料较丁烯共聚聚乙烯管材料具有更好的SCG抵抗性能；
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10. Low initial content of I butene or hight butanol content in the aqueous phase were unfavorable to the reaction.
原料中低异丁烯含量或水相中高叔丁醇含量均对反应过程有不利影响。
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11. The results show that top ethylene contains only 1% butene, and bottom liquid phase contains less than 1% ethylene.
结果表明，塔顶乙烯中只含小于1％的1-丁烯；塔底液相中乙烯含量也小于1％。
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12. MCM-22 zeolite was synthesized under stirring by hydrothermal method and used as the catalyst for butene oligomerization.
采用水热法合成了新型多孔材料MCM - 22分子筛，并将其用于丁烯齐聚反应。
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13. The selectivity of C8 was increased with raising of weight hourly space velocity, but the conversion of butene was reduced.
进料空速增大C8产物选择性增大，但丁烯转化率降低；
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14. The reduction step of catalyst with butene-2 and reoxidation step of reduced catalyst with oxygen were investigated by the pulse method.
用脉冲法研究了催化剂用丁烯- 2还原及还原催化剂用氧再氧化步骤。
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15. This paper elucidates the present situation of research and development of solid acid catalysts for the alkylation of isobutane with butene.
综述了异丁烷与丁烯烷基化反应用固体酸催化剂的研究现状及发展趋势。
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16. Many of the raw materials used in the petrochemical industry are unsaturated hydrocarbons, such as ethylene, propylene, butene and butadiene.
在石油化学工业中所用的许多原料是不饱和烃类，如乙烯、丙烯、丁烯和丁二烯。
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17. The condensation compound was synthesized by 2 butene 1, 4 diol and iso butyric aldehyde, and was characterized by elemental analysis and IR.
将异丁醛与1,4丁烯二醇缩合得到产物二氧七环，对产物进行了元素分析和IR分析。
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18. The oligomerization of 1-butene and 2-butene catalyzed by large pore sulfonated polystyrene resins was conducted in a 200ml stainless steel autoclave.
本文以大孔聚苯乙烯磺酸树脂为催化剂进行1-丁烯、2-丁烯齐聚反应；
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19. Therefore the first step is a process that controls reaction velocity decided by iso-butene concentration , having nothing with methanol concentration.
所以，反应的第一步为速率控制步骤，反应速率只取决于异丁烯的浓度，而与甲醇浓度无关。
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20. METHODS The title compound was synthesized from 2-butene-1,4-diol, via esterification, epoxidation, amination, then amidation with tetraiodoterebenzoyl chloride.
方法以1，4-丁烯二醇为原料，经过酯化、环氧化、氨解开环，再与四碘对苯二甲酰氯反应合成目标产物。
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21. The reaction processes for propane, i-butene, and hexane cracking under oxidative conditions are Studied, together with the function of gaseous oxygen on cracking reaction.
本文报道了轻烃临氧条件下催化裂化转化成乙烯和丙烯的反应途径，并探讨了气相氧在裂化反应中的作用。
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22. The preparation of polypropylene alloy by 2-stage heterophase catalytic copolymerization of ethylene, propylene and 1-butene on spheric Ziegler-Natta catalyst had been studied.
采用球形Z-N催化剂，使用乙烯、丙烯和1-丁烯作为共聚单体，分步聚合催化合成了三元多相共聚聚丙烯。
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23. The reaction mixture then undergo esterification and rearrangement reaction to prepare 1-chloro-2-methyl-4-(acetyloxy)-2-butene, which is a important intermediate of vitamin A.
反应混合物可以进一步酯化重排制备维生素A的中间体1-氯-2-甲基-4-乙酰氧基-2-丁烯。
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24. The structures, principles, and characteristic of three-dimensional mass transfer tray (LLC-Tray) was introduced and applied to chloroprene-dichloro-butene distillation process.
介绍了立体连续传质塔板的结构、原理、特性，并经设计后应用于氯丁二烯-二氯丁烯精馏过程中。
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25. The results showed that the import PE100 pipe materials were mainly butene-copolymerized HDPE, their Izods were two times higher than domestic materials and their OITs were longer.
26. This paper reported the results of laboratory study and industrial development of the new type non chrome ferrite W-201 catalyst for n-butene oxidative dehydrogenation to butadiene.
本文报导了丁烯氧化脱氢制丁二烯新型无铬铁系w- 201催化剂的实验室研究和工业生产结果。
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27. Through side-stream test, the result of butadiene removal by DD-1, service life, butene loss, and the influences of reaction velocity and reaction temperature on the catalyst are analyzed.
28. The process and importance of extractant regeneration of butene enrichment vacuum system is briefly described and problems occurred during extractant regeneration are analyzed and summarized.
29. The oxidative dehydrogenation of butane to butene and butadiene was studied by using conventional fixed bed reactor (FBR), inert membrane reactor (IMR) and mixed inert membrane reactor (MIMR).
30. The oxidative dehydrogenation of butane to butene and butadiene was studied by using conventional fixed bed reactor (FBR), inert membrane reactor (IMR) and mixed inert membrane reactor (MIMR).
In addition, the reaction mechanism of double bond isomerization of butene catalyzed by HF has been investigated. 此外，对氟化氢催化丁烯的反应机理进行了探索研究，为研究水滑石催化反应机理打下基础。
