再制备

With intermediates 1,ω-hexadecanediol and ω-bromo pentadecanol as starting materials,ω-bromo hexadecanoic acid and ω-bromo octadecanoic acid were prepared in four and seven steps of reactions separately.

分别以1，ω-十五烷二酸和1，ω-十六烷二酸为原料，各经过四步有机反应，制备了ω-碘代十六烷酸及含十四、十五、十六碳原子的ω-溴代直链脂肪酸；再以中间产物15-溴代十五烷醇、1，ω-十六烷二醇为原料，各经过四步、七步有机反应，制备了ω-溴代十六烷酸及ω-溴代十八烷酸。

Aminonocyclobutanecarboxylic acid is prepared according to above route, starting from 1-bromocyclobutanecarboxylic acid, which uses hexamethylenamine as catalyst in isopropyl alcohol.

再以1-溴代环丁甲酸为原料，以异丙醇作溶剂，乌洛托品为催化剂，与氨气反应，制备出1-氨基环丁甲酸，并优化了中间产物及最终产品的制备工艺。

The present invention uses isocyanuric acid as main raw material, and adopts the following main steps: adding alkali to make solvation, chlorization, bromation, secondary chlorization, filtering and drying to prepare bromochloro-isocyanuric acid.

本发明公开了一种溴氯异氰尿酸消毒灭菌剂的制备方法。该方法以异氰尿酸为主要原料，通过加碱溶解、氯化、溴化、再氯化、过滤、干燥主要步骤制备溴氯异氰尿酸。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

The high velocity arc spraying technology and powder-cored metal threads were bi-used to repair the waste components, and the integration between coating preparation and materials formation to Fe-Al base intermetallic compounds came true. A new supersonic ion spraying technique, named bi-channel, bi-temperature, was invented to solve successfully the issues of over-melting, half-cooked and burned materials. The high-energy mechanical and chemical method with own property right was explored to solve successfully the issue, which the nano particles dispersed evenly and suspended stably in the solution. After perfecting the techniques the high-performance co-electrodeposition between the conductive matrixes metal Ni and the nonconductive nano particles carried out. The excellent nano anti-friction self-repairing additives was prepared to achieve elementarily the self-repairing on the worn surface during the equipment worked.

首次将高速电弧喷涂技术与粉芯丝材相结合的方法应用于再制造零部件的表面修复，实现了Fe-Al金属间化合物的制备与涂层成形一体化；发明了一种&双通道、双温区&的高效能超音速等离子喷涂新工艺，解决了过熔、夹生及烧损问题；开发了具有自主知识产权的高能机械化学法，解决了纳米电刷镀时纳米颗粒在多离子溶液体系中的均匀分散与悬浮稳定的难题，通过工艺优化实现了非导电的纳米颗粒与导电的基质金属镍的高效共沉积；发明并制备了性能优异的纳米减摩自修复添加剂，初步实现了在装备运行过程中对磨损部位的原位动态自修复。

Tetra-O-benzyl-D-glucose reacted with bromine to give glucosylbromide. It reacted with hydroxyl phenyl acetonitrile or hydroxyl benzaldehyde to give substituted ph- enylacetonitrile or substituted benzaldehyde.11 New stilbenes were synthesized possessing 2,3,4,6-tetra-O-benzyl-D-glucoside by condensation reaction with pheny lacetonitrile or benzaldehyde, which had potential biological activity and would be sieved in the future.

由2，3，4，6-四芐氧基葡萄糖作为中间体，首先制备出的溴代糖和含有羟基的苯甲醛和苯乙反应制备出含有糖的取代苯甲醛和取代苯乙，再和简单的苯乙或苯甲醛缩合反应生成11种具有潜在的生物活性且含有2，3，4，6-四芐氧基葡萄糖的类化合物，这些新化合物有待于进一步进行药理活性筛选。

The synthetic route starts from penicillin G, peroxyacetic acid(8.5%) as Oxidizing Agent to get penicillin G sulfoxide; esterifided with p-nitrobenzyl bromine to synthesize penicillin G sulfoxide ester; we synthesize 3-exomethylenecepham sulfoxide ester with phthalimide potassium and 4A molecular sieve as acid scavenger to open the ring, SnCl_4 as catalyzation to close the ring. The yield is over 60%.

本研究采用的合成路线为：以青霉素G钾盐为原料，选用工业过氧化氢制备的过氧乙酸(22.3%)稀释至8.5%为氧化剂，氧化得青霉素亚砜；采用对硝基溴苄为酯化试剂，制备青霉素亚砜酯；以NCP(N-氯代邻苯二甲酰亚胺)为开环试剂，酞酰亚胺钾和4A型分子筛为酸清除剂，顺利开环；再经无水SnCl_4催化闭环得3-环外亚甲基头孢亚砜酯，最终产率在60%以上。

Reparation of PBO was begun with the polymerization process in which composite salts that contained 4,6-diaminoresorcinol and terephthalic acid were dissolved in polyphosphoric acid and phosphorus pentoxide.

BO纤维制备：以4，6-二氨基间苯二酚的盐酸盐为单体原料，与对苯二甲酸混合，经过中和反应、脱色处理、干燥后制成复合盐；再以多聚磷酸为溶剂，添加五氧化二磷和抗氧化剂，经过预聚合反应制备出PBO聚合物；聚合物通过双螺杆挤出机进一步进行聚合，然后通过喷丝板挤出，在磷酸水溶液中凝固成型，经过洗涤、干燥等过程，最终卷绕成型。

In order to modify the dense of the hydrophilic groups of the superabsorbents, as well as reutilize wast polymer , a rigid and hydrophobic polystyrene chain have been introduced into the superabsorbent, and novel superabsorbent nanocomposites based on partially neutralized acrylic acid, waste polystyrene foam and sodium type montmorillonite powder have been synthesized. The properties of the superabsorbents, effects of various main factors on water absorbency have been systemically investigated. The structure, surface morphology and thermal stability of the composites were characterized by FTIR, XRD, SEM and thermo gravimetric analysis.

为了改善高吸水性树脂亲水基团的密度，同时以废塑料资源化再利用为目的，将刚性、疏水的聚苯乙烯引入到高吸水性树脂中，成功制备了废旧聚苯乙烯泡沫/丙烯酸/蒙脱土高吸水性树脂，并对所制备的高吸水性树脂的各项性能、吸水倍率的诸影响因素进行了系统讨论研究，同时也通过FTIR、XRD、SEM、热重分析等物理手段来表征复合高吸水性树脂的结构、表面形貌、热力学稳定性等性能。

The phosphotungstic acid and the silicotungstic acid are prepared firstly, and the Keggin structure of them is also confirmed by IR spectrum. Then the HPWA/SiO2 and HSiWA/SiO2 are prepared by impregnation, and IR spectrum and UV spectrum are used to characterize the Keggin structure of them.

通过经典酸化－乙醚萃取法制备了钨磷酸和钨硅酸，并用红外光谱证明其具有Keggin结构；再用传统浸渍法对制备的钨磷酸和钨硅酸进行SiO2固载化，然后重点对杂多酸在固载化后Keggin结构是否依然保持进行了研究。

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