Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

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Carbon disulfide, dialkylamine, antimony trioxide have been used to synthesize the other organic antimony compounds-dialkyldithiocarbamate. The optimal technological conditions and purificating method have been studied in detail.

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A pentacarbonyl complex (3) isolatedfrom the same reaction from which the complex (1) is obtained, whose accuratestructure is yet known, is preliminarily studied.

對從含吡啶基團的二硫醇三齒配體與Fe_3_(12)的反應中得到的另一個準確結(jié)構(gòu)有待確定的五羰基化合物(3)進行了初步的性質(zhì)研究及表征。

The literature about the synthesis of the ion exchange and chelating adsorbents used in the off-line separation and preconcentration of the noble metals and the development of the on-line microcolumn separation and preconcentration of the noble metals were reviewed. Four silica gel-based adsorbents with rhodanine, 2-mercaptopyrimidine, 2-mercaptothiazoline and isophenylthiourea as the functional groups were first synthesized and applied to the on-line separation and preconcentration of silver, gold, palladium and platinum for their FAAS determination.

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The experiment result show that desulfurization efficiency declined with the increase of flue gas flux and SO_2 inlet concentration; desulfurization efficiency added with the enhance of Ca/S molar ratio, flue gas humidity, the moisture content of calcium sorbent, desulfurization efficiency also increased after adding activated vapor, superinducing additive, inflicting applied voltage.

試驗表明：隨著煙氣流量，SO_2進口濃度的增加国产精品自拍视频,国产精品自拍，脫硫效率降低97超碰中文在线；隨著鈣硫比，煙氣含濕量嗯黄色视频在线观看公司，石灰含水率的增加黄色三级日本，脫硫效率增加：隨著活化蒸氣的通入，外加添加劑的加入h动漫一区二区，外加電壓的施加骚逼人人操人人玩，系統(tǒng)的脫硫效率增加。