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Sulphonated carbon materials made from glucose were used as the solid acid and the support of Fe(superscript 2+) in the Fenton reaction, and the effects of the structure of carbon materials prepared by different methods on the Fe(superscript 2+) loading and the degradation efficiency of methyl orange were measured.

以葡萄糖为原料制备的磺化材料作为Fenton反应过程中固体酸及载体,研究了磺化材料结构对Fe(上标 2+)的负载能力及其对甲基橙降解反应的催化性能。

The general plot of the program is: The challenge of energy crisis and climate change is like a surfy ocean, while the human being is a group of passengers in a boat travelling across the ocean; the fancy first-class cabins are occupied by belly grown-ups (representing developed countries whose carbon footprints have far exceeded the world's per capita level), and on the contrary, hurdled in the tourist-class cabins are the youngsters without money in their pocket (representing developing countries whose carbon footprints are small but will enlarge with the growth of their body).

节目的大意是:能源和气候变化的挑战如同波涛汹涌的大海,而人类如同海上航行的一条船的一群乘客;享用高等级舱位的是大腹便便的成人(代表发达国家,其足迹远超世界人均水平),而拥挤在普通舱中的是囊中羞涩的少年(代表发展中国家,其足迹小,但随着身体的发育会有所增加)。

In optimal condition, the biosurfactant concentration can reach 2.2g/L in 150h with 20g/L tetradecane as sole carbon source, the biosurfactant concentration was stable at 165~220mg/L with 20g/L crude oil as sole carbon source.

4在优化条件下,以20g/L十四烷为源,培养150小时,糖脂表面活性剂浓度可达到2.2g/L,以20g/L石油为唯一源,糖脂浓度稳定在165~220mg/L。

Inoptimal condition, the biosurfactant concentration can reach 2.2g/L in 150h with 20g/L tetradecane as sole carbon source, the biosurfactant concentration was stable at 165~220mg/L with 20g/L crude oil as sole carbon source.

4在优化条件下,以20g/L十四烷为源,培养150小时,糖脂表面活性剂浓度可达到2.2g/L,以20g/L石油为唯一源,糖脂浓度稳定在165~220mg/L。

Itis main raw material of tetradecane,others applications include:liquid mosquito-repellent incense,hydraulic oil of large-scale punch,paraffin chloride,anticorrosive paint.powder paint,and top-grade melt adhesive,its derivative is chainpoly-anhydride of 14c binary acid,it is very useful chenical and medical intermediate,it can be used ad curing agent of epoxy and propylene resin,polyester improved additive etc.

外观与性状无色液体,溶解性不溶于水,可混溶于乙醇、乙醚是生产十四烷烃的主要原料,其它应用包括:液体蚊香、大型冲压机的液压油、氯化石蜡、防腐涂料、粉末涂料也可用作高档热熔胶,其衍生产品十四二元酸的直链聚酐,是一种非常有用的化工及医药中间体,可用于环氧及丙烯树脂固化剂、聚酯改性添加剂等等。

Simultaneously we prepared benzimidazolines with two methods by the reducton of benzimidazolium salts with NaBH_4 and Grignard addition with benzimidazolium salts. Thus we provided a new biomimic synthetic method for 9 kind of tetrahydro-β-carboline starting from carboxylic aicd and halid. A convenient synthetic method for preparing tetrahydro-β-carboline was provided.

本文以1,3-二甲基苯并咪唑碘盐和2-取代的1,3-二甲基苯并咪唑碘盐为原料,采用了NaBH_4还原和Grignard试剂加成两种方法,制备了9种1,3-二甲基苯并咪唑烷和2-取代的1,3-二甲基苯并咪唑烷作为四氢叶酸辅酶一单元转移新模型,在酸性条件下,以色胺作为接受一转移的亲核试剂,完成9种四氢-β-咔啉类化合物的新合成方法研究。

The physical and chemistry simulation on TSA process was established, and the mechanism of thaumasite formation was taken on further discussion.

摘 要:研究水泥砂浆试件在硫硅酸钙型硫酸盐侵蚀过程中的物理化学性能变化,对TSA过程进行模拟,进一步探讨硫硅酸钙的形成机理。

This proves that concrete can produce thaumasite in a sulfate environment over 15 ℃, and the existence of Mg2+ can accelerate the formation of thaumasite.

证明水泥混凝土在>15 ℃的硫酸盐侵蚀环境下亦可生成硫硅酸钙,而Mg2+的存在对硫硅酸钙的形成过程具有加速催化作用。

Results Eleven compounds were obtained and identified as sarcodonin A, scabronine B, 3β-hydroxy-5α, 8a-epidioxyergosta-6, 22-dien,(22E, 24R)-ergosta-7, 22-diene-3β, 5α, 6β-triol,(22E, 24R)-ergosta-7, 22-diene-3β-ol, benzoic acid, 4-hydroxylben-zaldehyde, 4-monopropanoylbenzenediol, ethy1-β-D-glucopyranoside, thioacetic anhydride,(2S, 2'R, 3S, 4R)-2-(2-hydroxyoctadecanoylamino) docosane-1, 3, 4-triol.

结果共分离鉴定了11个化合物,分别是:sarcodonin A、scabronine B、3β羟-5α,5α-过氧麦角甾-6,22-二烯-3β-醇、(22E,24R)-麦角甾-7,22-二烯-3β,5α,6β三醇、(22E,24R)-麦角甾-7,22-二烯-3β-醇、苯甲酸、对羟基苯甲醛、对羟基苯甲酸乙酯、乙基-β-D-吡喃葡萄糖苷、硫代乙酸酐、(25,2'R,3S,4R)-2-(2-羟基-十八酰胺)二十二烷-l,3,4-三醇。

Decolorization of MB by heterogeneous Fenton reaction using titanomagnetite was studied using UV-Vis spectra, Fourier transform infrared spectroscopy, 13C nuclear magnetic resonance spectra (13C NMR), dissolved organic carbon and element C analyses.

本研究运用紫外可见光谱、傅立叶转换红外光谱和13C核磁共振谱以及水相中溶解性有机和固相上元素分析等技术对钛磁铁矿异相Fenton法脱色亚甲基蓝的过程进行了研究。

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