硅

It introduces the technology of producing clean high-silicon silicomanganese .

介绍了纯净高硅锰硅合金的生产工艺，即要有优质的原料、较高的炉温、合适的炉渣碱度和正确的冶炼操作方法。

It introduces the production control of low phosphorus and low carbon high silicon silicomanganese and the measures and crafts requirement of decreasing phosphorus and carbon.

论述了低磷低碳高硅锰硅合金的生产控制和降磷降碳措施以及工艺要求。

Due to the technical reformation and enlarging the smelting intensity, the set of 30MVA silicon-manganese submerged arc furnace and the dry gas cleaning system has increased the output of silicomanganese , thus, the gas maximum temperature has risen from 650℃to 950℃, and the gas volume has increased by 80%.

MVA 锰硅矿热炉及其煤气干式净化系统由于技术改造增大冶炼强度提高了锰硅合金的产量，导致煤气最高温度从原设计的650℃提高到950℃，煤气量增加了80％。

The low-phosphorus and low-carbon Al-Si-Mn ferroalloy is produced with aluminium and common silicomanganese in certain proportion and through adding proper amount of Ca-Ba dephosphorizing agent for high temperature dephosphorizing and decarbonizing and adding proper amount of pure aluminum and clean waste steel.

本发明按一定比例的铝、普通硅锰合金，加适量的钙、钡系脱磷剂进行高温脱磷脱碳，再根据产品成份的要求补加金属锰，加入所需的纯铝及纯净废钢，获得的低磷低碳铝硅锰铁合金的组成为：Al 5～20％，Mn 50～70％，Si 8～20％，C≤1.0％，P≤0.1％，S≤0.03％，余量为Fe。

At present, a win is a global market Chlorosilane leader in the field, but also the global silyl product, one of the major manufacturers.

目前赢创是全球的氯硅烷市场领域中的佼佼者，同时也是全球甲硅烷产品的主要生产商之一。

The Si content in the silyl cellulosecould be controlled by adjustment of the molar ratio of silane and cellulose.

衍生物中硅的含量可通过有机硅与纤维素的摩尔比调节。

STUDY ON THE APPROACH AND THE MEDCHINE FOR THE DEPROTECTION OF SILYL ETHER BY SODIUM PERIODATE Abstract Silyl ethers are the most widely used hydroxyl protecting groups in organic synthesis.

第二部分：过碘酸钠去硅醚保护基方法及机理的研究硅醚保护基种类多，稳定性较好，且反应简单，作为羟基的保护基在有机合成中得到广泛应用。

The preferred organometallic compounds of the present invention are of the formula (R1)m M(PR23)x, where M is a metal selected from the group consisting of manganese, technetium, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium iridium and platinum wherein m is 0, 1, 2, 3 or 4; x is 2, 3, 4 or 5 and m+x are 2, 3, 4, 5, 6, 7 or 8, m and x selected according to each metals appropriate valence; each R1 is independently selected from the group consisting of hydrogen, deuterium, N2, H2, D2 and a variety of substituted alkyl groups; each R2 is independently selected from the group consisting of lower alkyl, aryl, arylalkyl, and alkyl-Z, aryl-Z and arylalkyl-Z where Z is selected from the group consisting of oxy, silyl, siloxy, oxysilyl, siloxy, oxysiloxy, silyalkyl, oxysilylalkyl, siloxyalkyl, oxysiloxyalkyl, silylalkoxy, silylalkoxy, siloxyalkoxy and oxysiloxyalkoxy; and wherein when M is cobalt and one group R1 is selected to be N2, then m is 2 and the second group R1 is hydrogen or deuterium.

有机化合物的首选本发明的配方是米(R1代)米×(pr23)、那里是一米的金属挑选出来，第一组由锰、锝、铼、铁、钴、镍、钌、铑、钯、锇、铱铂其中M是0、1、2、3或4； X是2，3， 4或5米×+有2，3，4，5，6，7或8 米和X挑选合适的价按每个金属； R1的是每一组由独立选自氢、氘、氮、氢气、 D2和各种烷基取代群体； R2中的每个组由独立选自烷基低、芳、芳基烷基、烷基的Z、芳基、芳基烷基的Z-那里的ZZ是选自组风、含硅、氧、oxysilyl、硅、oxysiloxy，silyalkyl， oxysilylalkyl，siloxyalkyl，oxysiloxyalkyl，silylalkoxy，silylalkoxy，siloxyalkoxy和oxysiloxyalkoxy；其中，M是当钴一派R1的选择是氮气、然后是2米，第二组R1的氘是氢或者。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

β-Cyclodextrin with the 6-hydroxyls protected by dimethyl-tert- butylsilyl was selectively oxidized by lead tetraacetate. After the silyl groups were removed off by boron fluoride-etherate, mono-2,3- dialdehydro-β-cyclodextrin as a cuniform molecule could be constructed.

用四醋酸铅将七元（6-O-二甲基叔丁基硅基）-β-环糊精选择氧化、并用三氟化硼乙醚脱硅基保护基后，再经分离、纯化，可获得具有&楔筒状&空腔的单-2， 3-二醛基-β-环糊精。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。