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- The silica based DNA came from the Pleiades and Orion Star Systems. 硅基DNA来自昴宿星及猎户星系。
- Etherification of propylene oxide with methanol using MAF solid base catalyst had been investigated. 研究了甲醇与环氧丙烷在固体碱催化剂MAF存在下非均相合成丙二醇甲醚的过程。
- Irone was obtained through three steps reactions with citral and acetone.Citral reacted with acetone in the base catalyst to give pseudoionone. 采用山苍子油提取得到的柠檬醛和丙酮等为主要原料合成鸢尾酮。
- HTs can be successfully applied to a broad spectrum of organic reactions,such as base catalyst,redox catalyst and catalyst support material. 本文就水滑石类阴离子黏土的合成现状进行了概述,对其各种不同的合成方法进行了比较。
- Carbon nanofiber (CNF) is a novel carbon based catalyst support. 纳米碳纤维(CNF)是一种新型的碳基催化剂载体。
- The obtained solid base catalyst, which possessed huge specific surface area and good antiacid and waterproof performance, had excellent application prospect. 所制固体碱生物柴油催化剂比表面积大,抗酸、抗水性能好,应用前景良好。
- The variety and characteristics of solid base catalyst were summarized.And the application of solid base catalyst in the transesterification of lipid was discussed. 综述了固体碱催化剂的种类及其特点,讨论了固体碱催化剂在油脂酯交换反应中的应用。
- In this paper, we bring forward a proposition that we can obtained new solid base catalyst through calcined hydrotalcite which contain Ca、Cu、Co in layer and interstitial anions. 本文根据层板组成的可调变性和整体结构与组成均匀性的结构优势,提出合成层板上具有碱性(Ca、Cu、Co)及层间具有不同阴离子的层状前体,并通过焙烧此种前体最终得到具有不同碱性特征的新型固体碱催化材料的构想。
- Therefore it is really unwise to attempt to ascend beyond 1800 if one's ancestry is primarily silica based. 因此,如果你的祖先主要是硅基的话,超越1800股而提升确实是非常不明智的。
- Your current scientists are in confusion about this, as carbon as a toxin would only be so for those with a primarily silica based system. 你们当前的科学家对此很迷惑,因为碳只是对那些主要是硅基系统的人们才成为毒素。
- In this paper, the synthesis methods in actual life are summarized, and the examples in practice, such as base catalyst, catalyst with cation cooperating and catalyst with anion exchanging ability, and their application to pollution control are reviewed. 本文就水滑石类材料的合成现状进行了概述,并就水滑石类材料的碱性,阳离子的可搭配性,层间阴离子的可交换性等几个方面以及在污染控制中应用进行论述。
- Interestingly enough, half silica-based humans became enamored in recent centuries with harvesting the remains of another prehistoric silica based animal. 够有趣的是,半硅基的人们在最近数个世纪里变得倾心于采集另一种史前硅基动物的残骸。
- A new method was developed for the determination of reactive silica based on the system of methylene blue (MB)-molybdosilicate (SiMo)-polyglycol octylphenyl ether(OP). 本文建立了亚甲基蓝(MB)-硅钼杂多酸(SiMo)-聚乙二醇辛基苯基醚(OP)显色体系测定痕量活性二氧化硅的新方法。
- It was shown that the hydrocracking index in the reaction over water-soluble base catalyst could be improved by adding small amount of oil-soluble dispersed catalyst as inducing catalyst. 试验结果表明,在水溶性催化剂为基体的反应中,加入少量油溶性催化剂作为"诱导剂"可以改善反应状况,实现较高的裂化指标,转化率相对较高,生焦量相对较少,同时催化剂加入量较少。
- Study on the precursor phase composition of iron catalyst and discovery of FeO based catalyst for ammonia synthesis. 铁催化剂母体相组成的研究和FeO基合成催化剂的发现。
- The reaction mechanism of NBC-1 non_chromium iron based catalyst is studied through TPD,TPSR and PSR. 通过TPD、TPSR、PSR等手段 ,对NBC -1型铁系无铬CO高温变换催化剂进行了变换反应机理的研究。
- The M41S, HMS, MSU, and SBA silica based crystalline mesoporous molecular sieves are of great academic and practical importance in catalysis, absorptive separation technology, and materials science. M41S、HMS、MSU和SBA等具有规则孔道结构的介孔硅基分子筛及其杂原子衍生物在多相催化、吸附分离及材料科学领域有重要的学术研究与工程应用价值。
- Drainage Sand is used in the bottom of ladle.The main specifications of this kind of productions are silica based,magnesia based,chromium based and magnesia olivine based,which can be chosen by the clients. 引流砂是钢包底部水口填充散状料,主要品种有硅质、镁质、铬质和镁橄榄石质等可供客户选用。
- A kind of CrF 3 based catalyst for HHFC 134a preparation by reacting HFC 133a with AHF via vapor phase fluorination is reported. 报道了一种由HCFC 133a与AHF经气相催化氟化制备HFC 134a的CrF3 基催化剂。
- The process of acetic acid production by direct oxidation of ethylene was studied using Pd-SiW 12 /SiO 2 based catalyst. 采用Pd-SiW12 /SiO2 系列催化剂 ,对乙烯直接氧化制乙酸工艺进行了研究。