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十六烷

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The results showed that clean diesel fuel with sulfur content less than 10 g/g and cetane number more than 51 could be produced by MHUG technology with good feedstock adoptability.

结果表明,采用MHUG技术可以生产得到硫含量小于10gg-1、实测十六烷值51以上清洁柴油产品,且对各种原料构成方案均有良好的适应性。

Results Two compounds were isolated from D. diandra. Theirs structures were identified as 6-carboxymethy1-5,7,4'-trihydroxyflavone and l-O-β-D-glucopyranosyl-(2S,3R,4E,8E)-Z-N-(2'-hydroxypalmitoyl) octadecasphinga-4,8-dienine(soya cerebroside Ⅰ,Ⅱ).

结果分离并鉴定了2个化合物:6-羧甲基-5,7,4'-三羟基黄酮和4,8-N-[2'-D-羟基-十六烷酰基]-1-O-D-吡喃葡萄糖基-4,8-二烯-十八鞘氨醇。

High performance diesel engines operate best with cetane values of 50 or higher.

高性能柴油发动机的运作十六烷值50或更高价值的最佳。

As expected, the largest beneficial effects of higher cetane occurred at -10°C.

译: 如同所预期的,高十六烷值在-10°C 展现出大量的好处。

Its high cetane number, more than 49 (petrochemical diesel to 45), is an alternative to ordinary diesel fuel used in environmental protection.

它的十六烷值高,大于49(石化柴油为45),是一种可以替代普通柴油使用的环保燃油。

The cetane number can be increased by more than one time as compared with hydrorefining process.

与加氢精制相比,在相类似的操作条件下达到同等脱硫脱氮深度时,本发明的方法可提高十六烷值的幅度约是加氢精制工艺的一倍以上。

.(Although high concentrations of biodiesel decrease the benefits of AMSOIL Cetane Boost).

高浓度虽然生物柴油的十六烷值减少AMSOIL的好处升压)。

The titled compound as an intermediate for preparing muscone is obtained by reacting a tetradecanedioic acid as the starting material with a chlorinating agent——chlorosulfoxide,followed by reacting the resultant reaction product on halogenomethylzinc .

采用直链十四碳二元酸为起始原料,先以氯化亚砜进行酰化,所得酰氯直接与甲基锌试剂反应进行甲基化,从而制得了合成麝香酮的重要中间体2,15-十六烷二酮,产物结构经1HNMRI、R确认。

The physicochemical properties, fatty acid composition and mineral elements of Viburnum cylindricum seed oil were determined. The results showed that 20 kinds of fatty acids in the Viburnum cylindricum seed oil were identified, in which the main components were oleic acid (33.34%), 8,11-octadecadienoic acid (28.24%) and palmitic acid (22.55%); the seed oil contained 6 kinds of essential mineral elements including Ca, P, Mg, Fe, K and Mn, and their contents were in the reasonable range of body requirement.

测定了水红木油的理化指标;用GC/MS法测定了脂肪酸组成及含量,共检出20种脂肪酸,主要成分9-十八碳烯酸占33.34%,8,11-十八碳二烯酸占28.24%,十六烷酸占22.55%,3种脂肪酸共占84.13%;用ICP-OES法测定了矿质元素的种类和含量,检出的Ca、P、Mg、Fe、K、Mn 6种矿质元素均为人体必需元素,含量均在人体所需合理范围内。

One route was that the amino-groups on the silica gel were transformed to tertiary amines by Eschweiler-clarke reaction that amine-groups react with formaldehyde and methanoic acid to prepare tertiary amines; the silica gel intermediates with tertiary amine groups reacted with chorohydrocarbons to prepare insoluble silica gel quaternary ammonium salt bactericides. Another route was that the amino-groups on the silica gel reacted with excessive chlorohexadecane; the preparing intermediates were quaternized with iodomethane to obtain insoluble silica gel quaternary ammonium salt bactericides.

一条路线是根据埃施韦勒-克拉克(Eschweiler-clarke)胺甲基化反应,进行胺基叔胺化反应,制成带有叔胺官能团的硅胶中间体,此中间体上的叔胺与卤代烷反应生成杀菌活性官能团季铵盐,制成硅胶类水不溶性季铵盐杀菌剂;另一条路线是带有胺反应活性中心的硅胶与过量正氯代十六烷反应,得到的中间体再用碘甲烷季铵化,得到最终产品——水不溶性季铵盐杀菌剂。

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