产速太慢，底层再次氧化，如镍层在金槽氧化(或金还原)，剥锡。
Production speed too slow, the bottom again, such as nickel oxide layer in gold slot oxidation (or gold reduction), peel tin.
本文采用凝胶前驱体纤维热分解还原法制备了镍、镍-钴、铁、镍-铁四种磁性金属纤维。
In this paper, the Ni, Ni-Co, Fe and Ni-Fe magnetic fibers were prepared by thermal decomposition reducing method of gel precursor fibers.
化学镀镍废液的处理方法主要有化学沉淀法、催化还原法、电解法、离子交换法等。
The main treatment methods of spent electroless nickel plating solution include chemical deposition, catalytic reduction, electrolysis, ionic exchange, etc.
镍的还原在提供了主要的金属催化功能的同时产生了大量的质子酸。
Reduction of nickel ions provides both metal with catalytic function and Bronsted acid.
在此基础上，对焙烧红土镍矿进行还原熔炼实验研究。
On this basis, reducing smelting of nickel-laterite ores roasted was investigated.
采用液相还原法制得铁镍纳米合金，TEM测试结果表明该合金粒径小。
Fe-Ni nano-alloy was synthesized by chemical reduction, and the result of transmission electron microscopy(TEM) shows that the diameter of particles is very small.
以负载型铜、镍催化剂为加氢催化剂，液相加氢还原粗仲辛醇中的2辛酮制备高纯度仲辛醇。
The supported copper and nickel catalysts are applied to preparation of purified octanol 2 by using hydrogenation reduction.
本文首先研究了液相还原法制备超细镍粉。
This thesis investigated firstly the synthesis of ultrafine nickel powders by liquidphase reduction method.
试验结果表明，还原剂焦炭用量对金属钴镍收率影响最大，用量过大或过少都不利于钴镍的回收，而对铜的回收率影响不明显；
The experiment results showed that the dosage of coke had the largest effect on the recovery of cobalt and nickel, but no obvious influence on the recovery of copper.
以次亚磷酸钠为还原剂，在压电陶瓷表面进行酸性化学镀镍磷。
Acid electroless nickel phosphorus plating on PZT ceramic was studied with hypophosphite as a reducing agent.
采用光还原、化学和电化学技术，分别研究了纳米银和纳米镍以及纳米水合二氧化硅纳米材料的制备和影响因素。
By adopting photo-reduction, chemical and electrochemistry technology, the preparations and influencing factors of nano-silver, nano- nickel and hydration silica were researched respectively.
介绍了一种利用台车连续炉，以红土镍矿为原料，煤粉为还原剂，生产镍铁金属化球团的方法。
This paper introduces a method of producing metallization pellet with laterite nickel ore as raw material and coal as a reductant in car bottom continuous furnace.
实验研究了改性骨架镍催化剂在间硝基苯磺酸（3-NBSA）加氢还原制备间氨基苯磺酸（3-ABSA）中的应用。
In this experiment, 3-Aminobenzenesulfonic acid(3-ABSA) was synthesized by catalyzing the hydrogenation of 3-nitrobenzenesulfonic acid(3-NBSA)with modified raney Ni catalyst.
与NM2相比，NM1具有较大的比表面和较小的镍镁固溶体晶粒度，还原后的NM1催化剂中镍晶粒也相对较小。
Compared with NM2, NM1 had higher specific surface area and smaller crystallites size of nickel-magnesian solid solution, and after reduction NM1 also had smaller size of nickel crystallites.
提出了化学镀镍溶液中的还原剂对PT C陶瓷的晶界产生还原从而影响PTC效应的观点。
It was proposed that the reducing agent of electroless plating solution could have some reducing reaction to the grain boundary of PTC ceramics and thus had influence on PTC effect.
研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。
Study is made on the process for recovering ni and co from the ni and co containing solution prepared from low grade manganese oxide ore by reductive roasting and sulfuric acid leaching.
本发明涉及一种不需要进行预还原处理就能表现活性的蒸汽烃转化镍基催化剂。
The present invention relates to a steam hydrocarbon reforming nickel-based catalyst requiring no pre-reduction treatment for the activity thereof.
二氧化硫作还原剂，用碳酸铵溶液可实现从钴壳中选择性浸出镍、钴和铜。
Selective leaching of nickel, cobalt and copper from cobalt crusts was attained by using ammonium carbonate solution and sulfur dioxide gas as a reductant.
研究了采用可溶性钙盐对以乳酸为络合剂，次磷酸盐为还原剂的失效化学镀镍溶液的再生。
The method using soluble calcium salt for regeneration of waste electroless nickel plating liquor, in which the lactic acid used as complexing agent and hypophosphite used as redcing agent is studied.
以次磷酸盐为还原剂的化学镀镍因具有优良的耐蚀性、耐磨性和镀层厚度均匀性而得到广泛应用。
The electroless nickel planting had application very widely for its corrosion -resistant and fretting-resistant and homogeneous nickel-plate.
采用溶液还原法，以硫酸镍为原料，水合肼为还原剂制备了超细和纳米镍粉。
Synthesis of ultrafine nickel powder by solution reduction technique and effect of the dispersant;
研究表明硝酸镍分解-氢还原法对二硫化钼粉末而言是一种方便和有效的粉末包覆方法。
The research shows that Ni(NO3)2 decomposition-hydrogen reduction is a convenient and effective powder coating method for MoS2 powders.
以金川镍闪速炉渣为原料，在高温熔融态下加入碳质还原剂以及钙质熔剂，还原渣中的铁及其它有价金属，并对还原过程进行了系统研究。
A new process for recovering iron and other valuable metals with carbonaceous reducing agent and calcic flux at high temperature from Jinchuan nickel slag has been investigated.
化学镀液中的镍离子在催化中心的作用下，被还原成金属镍原子而沉积下来。
Nickel coating is deposited through REDOX reaction in the presence of catalytic centers.
本文研究了强碱性条件下，以乙二胺为络合剂，用水合肼把二价镍离子还原为单质镍的方法。
Under the condition that the strong basic is medium and ethylene diamine is complex reagent, the method that Ni2 + of wastewater is deoxidized by hydrazine hydrate is studied.
研究了零价铁、镍-铁和铜-铁双金属对四氯乙烯（PCE）的还原性脱氯性能。
The capabilities of Fe0, Ni-Fe bimetal and Cu-Fe bimetal for reductive dechlorination of tetrachloroethylene(PCE)were studied.
本文利用具有配位、溶解和还原能力的乙二胺-乙二醇二元混合溶剂体系制备了近似单分散的二硫化镍微球。
In this thesis, an ethylenediamine-glycol mixed solution system which has good abilities of coordination, dissolution and reductivity has been used to synthesize near monodispersed NiS2 microspheres.
本文首先研究了液相还原法制备超细镍粉。
Research progress in preparation of ultrafine nickel powders;
本文首先研究了液相还原法制备超细镍粉。
Research progress in preparation of ultrafine nickel powders;
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