The adsorption of urea nitrogen onto dialdehyde cellulose under catalysis of immobilized urease in gelatin was studied in batch system.

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The weight ratio of catalysis system and ammonium lactate being 0.005-5％, and the magnetism solid acid catalyst and tin dichloride being 20∶1-1∶20; c.

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Some of the complexes withβ-diketone derive ligands, which potential applicated in optical, electricity, magnetism, absorption, catalysis, ion exchange, gas storage and so forth.

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Catalysis of sulfuric acid has been investigated in the preparation of dibromoalkane by epoxy compound and aliphatic diol .

結(jié)果表明：濃硫酸的用量對環(huán)氧化合物以及脂肪二元醇合成二溴代烷的收率有很大的影響

The transition metal catalysis reduction, hydride reagents reduction, sodium dithionite reduction and bioreduction ware discussed.

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In order to obtain high catalysis effect, dolomite with bigger specific surface area should be chosen.

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In thes subject, I have analyzed the developing conditions of esculen packing inland and overseas, according to ourselves level, adopting cheap bean dregs as material, using biological zymolysis technology, biological protease and lipase as catalyzer and through the catalysis of enzyme tO make soybean fibre of bean dregs and then form new esculent packing.

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After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

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Expectedly, catalysis by a proper microbial consortium at the MFC anode was also critical to this study.

MFC在適合的管徑條件下可以高效去除苯酚的同時，能有較高的產(chǎn)電效率东京热入口；MFC的陽極反應(yīng)需要微生物的催化99热思思在线国产。

Nano ferric oxide is a kind of materials of many functions, and have wide applications in such fields as catalysis, magnet, and medicine etc.

納米氧化鐵是一種多功能材料，在催化日韩妓女精品影院视频在线、磁介質(zhì)欧美少妇熟女性爱视频、醫(yī)藥等方面具有廣泛的應(yīng)用。