烷烯 的英文怎麼說
中文拼音 [wánxī]-
Abstract : the reaction conditions, catalysts of selective oxidation of propane to acrolein and the mechanism of acrolein formation were reviewed
文摘:論述了丙烷選擇氧化制丙烯醛催化反應的反應條件、催化劑和丙烯醛生成機理等方面的研究進展。The technical character of two kinds of chemical synthesis process from ethylene oxide and acrolein as raw material to produce 1, 3 - propanedi - ol as well as compared with the production process which using glycerol and glucose biological produce 1, 3 - propane - diol is analyzed
重點分析了以丙烯醛和環氧乙烷為主要原料的兩種化學合成工藝的技術特徵,並與以葡萄糖甘油為原料、生物法和一1 , 3 -丙二醇的生產工藝進行了對比。A hydrocarbon was known to be either an alkene or alkane.
某碳氫化合物已知可能是烯烴或是烷烴。Advances in the conversion of light alkanes to light alkenes
低碳烷烴催化轉化制取低碳烯烴反應工藝的研究進展Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.
非離子型表面活性劑有聚氧乙烯縮合物糖酯和烷基胺氧化物。Nonionic surface-active agents include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.
非離子型表面活性劑有聚氧乙烯縮合物,糖酯和烷基胺氧化物。Isobutane alkylation with butene on s o24 - zro2 superacid catalysts
2固體超強酸催化劑上異丁烷與丁烯烷基化的研究Studies on the so24 - zro2 solid superacid catalysts - alkylation of o - xylene with styrene
鄰二甲苯與苯乙烯的烷基化反應Eighteen compounds in the oil were identified by g c / ms. they are : seven ketone compounds : 2 - undecanone, 6, 10 - dimethy, 1 - cyclohexanol - l - butanone, 2, 5 - hexanedione, 2 ( 4h ) - benzofuranone, 5, 6, 7, 7, a - tetrahydro - 4, 4, 7a - trimethyl, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 1 - cyclohex en - 1 - yl ) -, ( e ), 6 - dodecanone, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 7 - oxabicycl o4. 1. 0hept - l - yl ) ; three alcoholic compounds : a - terpineol. benzyl alcoho 1, phytol ; two alkyl and acyl amine components : undecane, tetradecane and hydrazinecarboxamide, n, n - diphenyl -, acetamidobenzene ; one ester, a idehyde, alkyne and acid : butanoic acid : 2 - propenyl ester, 1 - octadecyne, 1 - octadecyne, palmitic acid
三甲基一7一氧雙環p , l , 0庚烷基什丁烯酮上;醇3種:苯甲醇、 a松油醇、 3 , 7 , 11 , 15十六烯2醇1 ;烷2種:十一烷、十四烷;酚胺2種:姘基甲酚h苯胺、乙酞苯胺;酯、醛、炔、和酸備是1種:丁酸烯丙酯、十八碳醛、十八炔、十六碳酸。Synthesis and characterization of n - alkyl - ferrocenylacryloyl amides
烷基二茂鐵丙烯酰胺的合成與表徵This product had strong property of separation and recovery of organic dissolvent and vapour, such as ether, ketone, alcohol, thf, dichlorotetra, chlorolform, narkosid, carbon disulfide disulphide, carbon, benzol, gasoline oil, etc
對醚類、酮類、醇類、四氫呋喃、二氯四烷、三氯甲烷、三氯乙烯、二硫化碳、苯、甲苯、甲酰、汽油及含汞、含氟烴類有機溶劑和有機蒸氣有很強的分離、回收性能。Butanes and butenes can be maintained in the liquid states at ambient temperature under quite moderate pressure.
在適當的大氣壓力及常溫下,丁烷和丁烯均可保持液體狀態。05. 01 test methods for traces of volatile chlorides in butane - butene mixtures
丁烷-丁烯混合物中揮發性氯化物痕量測試方法Standard test methods for traces of volatile chlorides in butane - butene mixtures
丁烷丁烯混合物中揮發性氯化物的痕量測試方法Liquefied petroleum gases ; propane, propene, butane, butene and their mixtures ; requirements
液化石油氣.丙烷丙烯丁烷丁烯及其混合物.要求Synthesis with carbocyclic compounds, such cyclodienylsilane, quinic acid and norbornene, etc, as starting materials is discussed in detail
重點介紹了以環二烯基硅烷、奎寧酸、降冰片烯等碳環化合物為原料合成碳環糖的進展。Best concentration of ions is 1. 5mol / l and dispersant pvp monomer 0. 8mol / l. spin - coating speed, which affected the quality of limn2o4 film greatly, was also studied. it demonstrated that smooth limn2o4 film without cracks could formed under 2000 rotates / min with the solution cion = 1. 5mol / l, cpvp = 0. 8mol / l, what ’ s more, fewest spin - coating times were needed at that speed
實驗結果表明:採用離子總濃度溶液為1 . 5mol / l ,聚乙烯吡咯烷酮單元濃度為0 . 8mol / l的溶液旋轉塗覆時,轉速在2000轉/分鐘時最佳,所得到的濕limn204薄膜平整光滑均勻,加熱后無龜裂現象。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含量;利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水率的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;利用核磁共振對新型硅烷單體結構進行了證實;研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。Using bf3 - et2o as a catalyst, the title compound was synthesized from allyl alcohol and epichlorohydrin by a series reaction included addition and cyclization
烯丙醇和環氧氯丙烷在三氟化硼乙醚絡合物的催化作用下進行加成和環化反應制得標題化合物。Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp. by gas chromatography - mass spectrometry ( gc - ms ) analysis
摘要採用氣相色譜質譜聯用分析技術從中新世水杉葉片和白堊紀松型球果兩種裸子植物化石中分別鑒定了51個和19個揮發性成分,類型涉及烷烴、烷烯、烷醇、長鏈脂肪酸及其酯、鄰苯二甲酸酯、菇類和芳香族化合物。分享友人