Cost of production是什么意思

用法例句

Thermodynamics on the reaction of carbochlorination of titania for getting titanium tetrachloride;

制备四氯化钛过程中加碳氯化反应热力学

The dethiolative coupling of thioamides promoted by the samarium and titanium tetrachloride mixed reagent;

钐/四氯化钛试剂促进下硫代酰胺的脱硫偶联反应的研究

During the reaction,TiCl4 was added into TEOS-MMT solution system so that Ti cation can offer the reaction drive to assure that the process of TEOS hydrolysis-condensation could occur in the layers of MMT.

用十六烷基三甲基溴化铵改性蒙脱土,制得有机蒙脱土,再以正硅酸乙酯为硅源,采用溶胶-凝胶法,在正硅酸乙酯-蒙脱土水溶液中加入四氯化钛,以四氯化钛作为硅柱前驱体进入粘土片层间反应的驱动力,在钛阳离子的驱动下,使正硅酸乙酯在蒙脱土的片层之间发生水解缩合反应,制备了硅钛柱撑蒙脱土微孔复合材料。

L-ribose was synthesized using D-gluose as starting material by nine step reactions,including acetone protection,PDC oxidation-NaBH4 reduction,acid selective hydrolysis,NaIO4 oxidative degradation,aldehyde group protection with methoxyl amime,resin thorough hydrolysis- NaBH4 reduction and deoximation with titanium trichloride.

以D-葡萄糖为原料经过丙酮保护、PDC氧化-硼氢化钠还原、酸选择性水解、高碘酸钠氧化降解、甲氧胺醛基保护、树脂完全水解-硼氢化钠还原及三氯化钛脱肟等九步反应合成了L-核糖,并用1HNMR对各步产物进行了表征。

Ultimately,using titanium trichloride as reducing agent,tungsten and isothiocyanate are formed green yellow chelate at the presence of hydrochloric acid,which is detected with colorimetry at the wave length of 430 .

方法基于在pH8~9的溶液中,使钨和Fe(OH)3共沉淀与钼分离,然后以盐酸溶解沉淀,再以NaOH沉淀Fe(OH)3,此时钨留在溶液中与Fe3+分离,最后以三氯化钛为还原剂,在盐酸介质中,钨与硫氰酸盐生成黄绿色络合物,于波长430 nm处比色测定。

Oxalic acid content in beer was measured by titanium trichloride photometric method and the relative indexes were as follows: pH value as 1.

建立了三氯化钛光度法测定啤酒中草酸含量的方法,测定条件为pH1。

In the preparation of spherical catalyst by ethylene polymerization, the effects of titanating temperature, titanating time, adding amount of titanic chloride, second titanating and carrier adducts of magnesium alkox-ide on the properties of catalyst were investigated.

在球型聚乙烯催化剂制备过程中,研究了载钛温度、载钛时间、四氯化钛加入量、二次载钛及醇镁加 合物载体组成对催化剂性能的影响。