氢氧化钠

回收氢氧化钠的另一好处，是降低了处理厂的铝盐消耗量。

An additional benefit resulting out of sodium hydroxide recovery is the decrease in consumption of alum at the treatment plant .

NOx在氢氧化钠溶液中吸收速率的研究

NOx Absorption Rate Studies in Sodium Hydroxide Solution

在用盐酸或氢氧化钠调整的pH值范围（2.9～11.5）其表面均荷负电，表面荷负电的原因可能是由黑钨矿结晶构造特征所决定的。

The negative surface charge of wolframite may possibly arise from the crystalline structural characteristics .

树脂采用10%氢氧化钠溶液脱附，效果良好，对COD的脱附率达98.5%以上。

The desorption efficiency is about 98.5 % with 10 % NaOH as desorption solvent .

对钼产品（多钼酸铵）中高含量的钼，则采用氢氧化钠溶液溶解样品，以EDTA容量法测定。

Mo in molybdenum product can be determined by EDTA volumetry .

甲醛、氢氧化钠可作为较好的SSS的造模药物。

Formaldehyde , sodium hydroxide can be used to establish the SSS model .

不同pH调节剂，在高温下调节pH值的能力不同，其中氨调节高温水溶液pH值的能力较弱，可通过添加氢氧化钠来改善。

In the practical high temperature water the ability of ammonia to regulate pH is weaker , so the NaOH should be adding to regulate practical pH to avoid acid attack .

采用微波辐射技术，以对硝基苯酚、氢氧化钠和氯化苄为原料，在N，N-二甲基甲酰胺（DMF）溶剂存在下直接合成对硝基苯苄醚；

4-Nitrophenyl benzyl ether was synthesized from p-nitrophenol and benzyl chloride under microwave radiation , using N , N-dimethyl formamide ( DMF ) as solvent .

铌酸纳（8Na2O·6Nb2O5·33H2O）的制备及其在氢氧化钠溶液中溶解度的研究

Preparation of pure sodium niobate ( 8na_2o · 6 Nb _2o_5.33h_2o ) and study of its solubility in sodium hydroxide solution

煤在吸附醋酸，氢氧化钠时，其吸附符合弗罗因德利希吸附等温式（Freundlichisotherm）。

Coal in the adsorption of acetic acid , sodium hydroxide , its absorption in line with Freundlich adsorption isotherm .

对氢氧化钠和甲基丙烯酸（MAA）发生中和反应原位生成甲基丙烯酸钠补强乙烯乙酸乙烯酯橡胶（EVA）进行了研究。

The reinforcement of EVA by the sodium methacrylate prepared in situ from the neutral reaction of sodium hydroxide with MAA was investigated .

用模式识别PLS算法总结铝酸钠、氢氧化钠溶液水蒸气平衡压实验数据，求得水活度与Na2O、Al2O3浓度和温度的线性关系式。

PLS method was used to find the mathematical models of water activity in sodium aluminate solution and NaOH solution .

本文论述了N，N二（2苯并咪唑亚甲基）胺与二硫化碳在氢氧化钠的存在下合成新型多齿配体N，N二（2苯并咪唑亚甲基）二硫代氨基甲酸钠的方法。

The paper discusses the synthesis method of a new polydentate ligand , sodium N , N-bis ( 2-benzimidazolylmethylene ) dithiocarbamate , using N , N-bis ( 2-benzimidazylomethyl ) amine with carbon disulfide in the presence of sodium hydroxide .

用1mol/L氢氧化钠溶液调待检尿液pH为9~10，上GDX-403柱，以氯仿洗脱。

Adjust pH of urine 9 to 10 by NaOH solution , extraction ketamine by GDX-403 , samples diluted in chloroform .

用microsoftexcel研究了电位滴定法测定壳聚糖的脱乙酰度的滴定曲线，利用两个突跃之间的氢氧化钠的用量计算了脱乙酰度。

Potential titration curve of deacetylation degree of chitosan was studied by Microsoft Excel software . The deacetylation degree can be calculated through the volume of sodium hydroxide used between two abrupt change .

表面活性剂和氢氧化钠溶液预先在管道搅拌器内混合，再与质量分数为0.5%的PAM溶液和清水在静态混合器内混合。

The surfactant and sodium hydroxide solutions was premixed in online dynamic mixer then mixed with 0.5 % ( wt ) PAM and water in static mixer .

综合碱性中和法和缓冲法的优点，优化了云母钛珠光颜料的制备工艺，并分别以尿素和氢氧化钠作为pH值稳定剂进行实验。

Combined the advantages of basic neutralizing method and buffer method , the preparation technology of titanium-mica pearlescent pigments was improved , and the experiments were carried out using ( NH_2 ) _2CO and NaOH as neutralization matter .

最佳皂化条件为：氢氧化钠用量26mL/（g单体），100℃水浴，皂化3h。

The best saponification conditions are that the quantity of NaOH , the saponifying temperature , the saponifying time are 26 mL / ( g monomer ), 100 ℃, 3 h , respectively .

同时，以硅溶胶为硅源，硫酸铝为铝源，氢氧化钠作碱源和去离子水，采用水热合成法合成了NaY沸石分子筛。

At the same time , zeolite NaY was synthesized by hydrothermal method using silica sol , aluminium sulfate , sodium hydroxide and deioned water .

形成的氧化副产物小部分随产物进到蒸馏系统形成轻质油和X油，大部分通过氢氧化钠碱洗形成环己烷氧化废碱液排出装置。

Most of the by-products that formed are discharged from the reactor in the form of waste water after caustic washing , while the other small part comes to the distillation system as the light weight oil and X oil .

生物活性研究表明，具有TiO2纳米管阵列的钛片经氢氧化钠溶液活化后具有良好的生物活性，能在模拟体液中诱导生成磷灰石。

The study of bioactivity shows that Ti plate forming TiO2 nanotube arrays on its surface has bioactivity after activation by NaOH solution , which can induced the formation of the apatite in simulate body fluid .

本文介绍了在银坩埚中用氢氧化钠分解氟化铝，以高氯酸驱除氟，EDTA容量法测定铝含量的分析方法。

This paper presents a method determining aluminium by EDTA volumetric analysis . In silver crucible , the aluminium fluoride is decomposed with sodium hydroxide and fluorine is drived out with perchloric acid .

EPT往炉水中只添加Na3PO4，且允许有少量游离的氢氧化钠存在，炉水碱度由Na3PO4和NaOH共同控制。

Only Na_3PO_4 is injected into boiler water in EPT , and a few free NaOH is permited to exist , so the value of pH is master of Na_3PO_4 and NaOH together .

目前，RD的生产方法是采用苯胺和丙酮为原料，苯磺酸为催化剂，在150～165℃下进行缩合反应，然后在盐酸介质中聚合而成聚合物，在氢氧化钠溶液中析出。

At present , aniline and acetone are used as raw materials in the production of RD , condensed at 150-165 ℃ in the presence of sulfinic acids , polymerized in hydrochloric acid solutions .

分别选取硫酸、氯化钕、氢氧化钠和乙醇等溶剂作为凝固浴，在不同凝固温度和凝固时间下凝固制备HEC膜。

Sulfuric acid , ammonium chloride , sodium hydroxide and ethanol were selected as coagulation bath under different coagulation temperature and coagulation time to manufacture HEC membranes .

用碳酸钠溶液作为沉淀剂和氢氧化钠有同样的效果，最佳碳酸钠加量对应的终点pH值为6.75，循环沉淀使用沉淀反应生成的CO2和偏铝酸钠溶液进行双水解反应，沉淀率可达94.54%。

The final pH value is 6.75 corresponds to the best dosage of sodium carbonate . Recycling reaction of precipitation used CO2 and the sodium aluminate solution for dual partial hydrolysis , the precipitation rate of Li + is up to 94.54 % .

在硅酸钠和氢氧化钠电解液中利用微弧氧化技术在LY12铝合金表面生成陶瓷膜层。

Ceramic coating was obtained by micro-arc oxidation on LY12 aluminum alloy in sodium silicate and sodium hydroxide electrolyte , and examined by SEM and TEM .

另外，又以四氯化锡为锡源、氢氧化钠为碱源，通过水热过程制备出直径在2.5微米左右的球形SnO2晶体，并对形成过程进行了初步的探讨。

The spherical SnO_2 crystals with micrometer scale were synthesized by a simple hydrothermal process . The possible growth mechanism of spherical structures was also discussed in this paper .

介绍了以二氧化硫烟气和稀氢氧化钠为原料，制备焦亚硫酸钠的实验方法和条件，产品经化学分析和X射线分析，Na2S2O5含量大于96%。

The experimental method and conditions of manufacturing Na2S2O5 from SO2 and diluted NaOH were described . The product was analysed by chemical method and X-ray , and result indicated that the composition of Na2S2O5 was more than 96 percent .

该反应采用聚乙二醇400作相转移催化剂（PTC），加入了一定的溶剂和氢氧化钠，在50℃下反应5h，N，N-二甲氨基-1,3-二氯丙烷的产率可达到40～50%

The reaction uses phase transfer catalyst with polyethylene glycol 400 , Adds spelled solvent and Sodium hydroxide . The reaction lasts five hours at 50 ℃ . Yield of N , N-Dimethylamino-1,3-dichloropropane arrives 40 ~ 50 % .