活性炭

The bamboo chars were obtained by carbonizing bamboos at different temperatures under conditions without air.

以竹节为原料，在隔绝空气的条件下，经不同温度炭化处理后与KOH混合，制取竹炭基高比表面积活性炭。

Through the test, the better technology conditions are as follows: carbonizing temperature 500~550℃, activating temperature 800～850℃, activating time 40～60min, and the amount of water 100～120mL/70g carbon.

银杏木材制备活性炭的优化工艺条件为：炭化温度500～550℃、活化温度800～850℃、活化时间40～60min、水蒸气用量100～120ml／70g银杏木炭。

1H NMR spectra of benzene, cyclohexane and n -hexane and 2H NMR spectra of benzene -d6 absorbed on four charcoals with different pore structures were measured at various temperatures in the range from 297 to 195 K.

本文观察了吸附在四种孔结构活性炭中苯，环已烷和正已烷的~1H NMR和笊代苯的~2H NMR谱线在297～195 κ温度范围内的变化。

Compared with bamboo culm, hemp stem didn't have the bamboo node-shaped structure, resulting in lower compressive strength than bamboo and higher shrinkage ratio of hemp stem-based charcoals than that of bamboo charcoals.

与毛竹相比，汉麻秆结构中不具有竹节结构，因而其抗压强度远低于毛竹的抗压强度，其炭化产物的收缩率也高于竹炭的，汉麻秆中的木质素含量低于毛竹中的木质素含量，磷酸活化后所得到的汉麻秆活性炭孔道结构发展更充分。

The effect of both nitrogen doping and heat treatment on the surface chemistries is significant.

结果表明： 1、渗氮和热处理对活性炭表面化学性质的影响明显。

Because the reduction of NO by carbon is a heterogeneous reaction, the effect of surface chemistries on the reaction is very important, but there some few related studies, so it is necessary to do more basic research.

由于该过程是一个气-固相反应，所以活性炭的表面化学性质对NOx的还原有重要影响，但有关此方面的研究较缺乏，还需要进行更多基础研究，为此工艺的工业化应用奠定基础。

By comparted the cathode and anode with high polymer solid electrolyte Nafion,a novel system of gas phase-photoelectrocatalysis is formed.

将TiO2光催化剂负载在活性炭/石墨载体上，通过高聚物固体电解质Nafion分隔阴、阳极，构成新型气相光电催化反应系统。

The process may involve the use of molten sodium cyanide mixtures; pack carburizing with activated solid material such as charcoal or coke , gas or oil carburizing , and dry cyaniding .

工艺可能涉及到熔化的氰化钠混合物，带有活性固体物质如活性炭、焦炭等的固体渗碳，气体或油性渗碳剂，还有干法氰化。

The ratio of polygonatum sibiricum Red polysaccharide extracting is the best condition in the conditions of temperature 80℃,ratio of solid-liquid 1:15,the duration of time 4h and pH 7;Having removed protein by the method of enzyme + Sevag and having decolored by adding 15％ active carbon power and boiling 15min,the purity of polygonatum sibiricum red polysaccharide will be better.

在温度为80℃、固液比为1∶15、时间为4h、pH=7.0时，黄精多糖的提取率最高；通过酶+SEVAG试剂法除蛋白质，并且在粉末状活性炭用量为15%，煮沸时间为15min时脱色后可以得到较纯的黄精多糖。

Through a variety of resin filter, adsorption and elution conditions for the optimization, as well as decolorization, crystallization methods of research, this article eventually determine the strong acid cation resin HZ-001 which is at pH 3, 3BV / h, having the largest adsorption to the tryptophan; the fermentation broth were centrifuged to remove sediment,then treated with activated carbon to be decolored and then treated with strong acid cation resin HZ-001. After that,2mol/l amino acid were passed through the HZ-001 ion exchanging column,kept almost constants when the flow rate stayed 6 BV / h. At 60℃,it was condensed into the saturated state and then added Ethanol until its percentage reaching 30%. At 4 ℃ under 100rpm placed in the shaker 20h, the collection of L-tryptophan was dried up in vacuo.

本文通过对种树脂的筛选、吸附和洗脱条件的优化，以及对脱色、结晶方法的研究与摸索，最终确定强酸型阳离子树脂HZ-001在pH=3，3倍床体积流速，温度室温，对色氨酸有最大的吸附作用；将发酵液离心去沉淀并用活性炭脱色后通过HZ-001强酸型阳离子交换树脂柱，再用2mol/L的氨水6倍床体积流速在室温下进行洗脱，收集洗脱液，60℃浓缩为过饱和状态后加入30%无水乙醇，4℃下100rpm摇起晶20h，过滤搜集结晶并真空干燥得白色粉片状L-色氨酸晶体。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐