再制备

Etchants are high consumption and high pollution of the printed circuit board industry; therefore this research uses the etchant for the acid copper chloride amount the high copper content in the printed circuit board industry, using the neutralization for acids and bases to prepare of the copper salt by the acid wasted etching liquid.

中文摘要在印刷电路板业中蚀刻液属於高用量及高污染性质的液体；因此本研究主要使用印刷电路板业中含铜量较高之酸性氯化铜蚀刻液，使用酸碱中和法从酸性蚀刻废液制备出铜盐，以达到废弃物资源化再利用之永续经营。

The invention provides a compound for preventing foetus neural tube abnormality and pregnant woman iron deficiency anemia and its manufacturing method, it includes active ingredients and carrier, the active component is mainly made up of 1:25 weight ratio of folacin and hemin, the dosage is: folacin 0.2-0.6mg, hemin 5-15mg, the carrier is 150-300g of mannitol, the product can be produced through following steps and order: the hemin and mannitol are put into the mixer to be mixed for 0.5-1.5 hours according to same-size scale-up method, and they are crashed and filtered with 100 items sift and they are diluted, then they are blended with folacin, and carries pelleting or making capsule, pill and so on, it can prevent the foetus neural tube abnormality and it can prevent the pregnant woman iron deficiency anemia.

本发明提供一种预防胎儿神经管畸形和孕妇缺铁性贫血病的组合物及其制备方法，它包括活性成分和载体，其中活性成分主要由重量比为1∶25的叶酸与氯高铁血红素组成，用量为：叶酸0.2～0.6mg、氯高铁血红素5～15mg，载体为甘露醇150～300g，并按以下步骤和次序配制而成：氯高铁血红素与甘露醇按等量递加法放置在混合机中混合0.5～1.5小时，一起粉碎过100目筛制成稀释散后，再与叶酸混合均匀，直接压片或者制成胶囊、丸剂等剂型，不仅预防胎儿神经管畸形，而且能够同时预防孕妇缺铁性贫血。

NaBH4 reduction of the iodides in DMSOfollowed by deprotection of Boc gave theα-methylamine in 61.5% yield.

得到的碘化物再用NaBH4还原，并且脱除Boc保护基可制备出α-甲基胺。

Composites of hollow glass bead /ultramicro iron/ EP with three-layer structure were prepared by coating EP on the surface of composites of ultramicro iron-coated hollow glass bead.

通过在超微铁包裹中空玻珠复合粒子表面再包裹一层EP，制备出了中空玻珠/超微铁/EP三层结构复合粒子。

Methods: Modified Longas method was used to make ratsmodels with reversible middle cerebral artery occlusion.

用改良的Longa氏法制备大鼠可再灌注大脑中动脉闭塞模型。

The preparation method is that: the natural bauxite is dried after being washed and cleaned, is put into a muffle furnace to preserve heat and then taken out after being cooled down to room temperature.

制备方法是将天然铝矾土清洗干净后烘干，再放入马弗炉中保温，然后随炉冷却至室温取出。

The approaches taken to prepare NO releasing polymers are classified into three catogories:(1)doping discrete NO nonors within polymer matrix;(2)covalent attachment of NO resealing moieties on the filler particles of the polymer to provide NO releasing properties and then dispersion them into the polymer backbone;(3) covalent linkage of NO donors to polymer molecules.

制备可释放NO聚合物材料的方法主要有3种：（1）通过物理掺杂的方式将小分子的NO供体分散到聚合物材料中；（2）对聚合物材料的填料微粒进行化学改性，得到可释放NO的填料粒子，再将其填充到聚合物材料中；（3）通过共价键将可释放NO的基团连接到聚合物主链及侧链上。

Production of epsilon-glycolylnium is carried out by Beckman rearrangement reacting for cyclohexanone-oxime under the existence of solvent to obtain epsilon-glycolylnium contained mixture, crystalline separating for the mixture to obtain crude epsilon-glycolylnium crystal, dissolving by arene, extracting by water, adsorbing by resin hydrogenation catalyzing to obtain the final product. The value of potassium permanganate is less than 5, extinction value is less 0.05, volatile alkali is less than 0.5meq/kg and alkalinity is less than 0.05meq/kg.

本发明涉及一种ε―己内酰胺制备方法，其特征为：在溶剂存在下，环己酮肟经贝克曼重排反应，得到含有ε―己内酰胺的混合物，该混合物结晶分离后，得到粗ε―己内酰胺晶体用芳烃溶解，然后用水萃取，再经树脂吸附、催化加氢后，得到99.995％以上的高纯度的ε―己内酰胺，其质量指标为高锰酸钾值小于5，消光值小于0.05，挥发性碱小于0.5meq/kg，碱度小于0.05meq/kg。

Tin dioxide (SnO2) nano-particles were prepared on high silica TON, MFI and FAU type zeolites by impregnation of SnCl2 solution and subsequent calcination at 873 K.

将高硅TON， MFI和FAU沸石分别浸渍于SnCl2溶液，再于873 K温度下焙烧，在高硅TON，MFI和FAU沸石外表面制备出二氧化锡纳米粒子。

The Tatun Coal Electricity Company Gangue Thermal power plant boiler supplies aqueous system used traditional the preparation craft, the processing water source was the ground water ahead of time, namely carries on the pretreatment elimination water through the mechanical filter the suspension, the colloid, the organic matter and so on, through the ionic exchange technology except the dehydration in salty ion, its craft approximately is again as follows

大屯煤电公司矸石热电厂锅炉补给水系统先期采用传统的制备工艺，处理水源为地下水，即通过机械过滤器进行预处理去除水中的悬浮物、胶体、有机物等，再通过离子交换技术除去水中的盐离子，其工艺大致如下

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