whiteness

The experiment results in the paper show that quantitative additive putting in the hydration water can check the iron ion content of the monohydrate sodium carbonate,to attain the goal of improving the whiteness of dense soda ash,in the solid hydrated technological process.在固相水合法生产重质纯碱工艺中 ,在水合水内加入一定量的添加剂 ,可抑制一水碱中Fe份对重灰白度的影响 ,从而达到提高重灰白度的目的。bus汉语字典

Synthesis of Thermal Stable Anion Exchange Resin and its Using in EO Catalytic Hydration;耐高温阴离子交换树脂的合成及在环氧乙烷催化水合反应中的应用bus汉语字典

Preparation and hydration of tiny silica;超细SiO_2的制备及水合特性实验分析bus汉语字典

Running analysis of preparing methyl ethyl ketone from n-butylene hydration;正丁烯水合法制甲乙酮装置运行分析bus汉语字典

Effect of lanthanum dopant Ni/γ-Al_2O_3 catalyst prepared by hydrazine reduction on hydrogenation activity;镧助剂对水合肼还原的Ni/γ-Al_2O_3催化剂加氢性能影响bus汉语字典

Electroless nickel plating bath in which hydrazine was used as reaction initiator,hydrazine and sodium hypophosphite were used as the reducing agent,was studied.铜上化学镀Ni-P合金通常需要用钯催化剂或其它无钯催化剂催化后才能施镀,研究了利用水合肼为引发剂,以水合肼和次磷酸钠为还原剂的化学镀Ni-P合金液,在铜箔上直接施镀,铜箔无须镀前催化。bus汉语字典

Cu-Ag bimetallic powders whose grain size was similar to the copper powders,were prepared by reduction reaction with hydrazine as the reducing agent by means of inhibiting substitution reaction.反应体系中引入强还原剂水合肼,通过反应条件的控制抑制置换反应,使银氨溶液优先发生液相还原反应,制备了与原铜粉粒径和形貌大致相同的铜-银双金属粉;采用XRD、EDX、激光粒度分析仪等检测方法对包覆双金属粉的晶相组成及含量、表面包覆层相组成及含量以及粒径分布等加以研究。bus汉语字典

The effects of temperature and hydrate quantity on the dissociation kinetics of methane hydrate were studied in a 10 L quiescent reactor.在体积10L的静态反应器中研究了水合物分解动力学,考察了储存温度和水合物量等因素对水合物分解的影响。bus汉语字典

Prevention and cure of gas hydrate in Yaoyingtai Gasfield;腰英台气田天然气水合物防治bus汉语字典

Experimental study on optimized synthesis for natural gas hydrate;天然气水合物优化合成实验研究bus汉语字典

A Simple Prediction Model for Hydrate Formation Conditions;简易水合物生成条件预测模型bus汉语字典

Preparation of ultrafine copper powder with hydrazine hydrate as reducing agent;水合肼为还原剂制备超细铜粉的研究bus汉语字典

Improvement on units of crude hydrazine hydrate refining procedure;粗水合肼精制工序的装置改进bus汉语字典

Research on expansion examination of ammonia removal by heat method of hydrazine hydrate by-product salt slag;热法除水合肼副产盐渣中氨的扩试研究