氢氧化锆

工艺条件对氢氧化锆凝胶性能的影响

Effect of processing conditions on the properties of zirconium hydroxide gels

超细氢氧化锆颗粒制备试验研究

Investigation on Preparation of Ultrafine Zirconium Hydroxide Particles

并以水热改性和未经水热改性氢氧化锆制备SO42-/ZrO2固体超强酸做了对比实验，采用XRD、BET对催化剂进行了表征。

Compared experiments were made with SO ~ ( 2 - ) _4 / ZrO_2 solid acid catalyst prepared by normal method . The catalysts were characterized with XRD and BET .

氢氧化锆前身粉末煅烧以后，可以得到亚微米级白色的Y-PSZ微粉。

The submicron white Y_2O_3-PSZ pow - ders are obtained after calcination of the precursor zirconium hydroxide .

本文通过水热改性氢氧化锆制备SO4~（2-）／ZrO2固体酸催化剂，以冰乙酸和正丁醇的酯化反应为探针反应来确定固体超强酸的最佳制备条件。

SO_4 ~ ( 2 - ) / ZrO_2 solid acid catalyst was prepared from hydrothermally modified zirconium hydroxide . The liquid phase esterification of acetic acid with 1-butanol was preformed to confirm the optimal conditions of preparation .

首先采用共沉淀法制备氢氧化锆前驱体，然后以水或0.5MK2CO3/KOH水溶液作为反应介质，水热制备分散性好的ZrO2（3Y）纳米粉体。

Zirconium hydrate precursor fabricated by coprecipitation was synthesized into ZrO2 ( 3Y ) nanocrystalline powder by hydrothermal process in pure aqueous solution or 0.5MK2CO3/KOH aqueous solution .

蒸煮处理水合氢氧化锆制备了ZrO2A；

ZrO 2 A was prepared by digesting hydrous zirconia ;

氢氧化锆干凝胶团聚结构及氧化锆超细粉末表面粗糙度的分形研究

Study on Fractal Aspects of Aggregate Structure of Zirconium Hydroxide Dried Gels and Surface Roughness of Ultrafine Zirconia Powders

通过水热改性氢氧化锆制备了SO42-/ZrO2固体酸催化剂。

SO ~ ( 2 - ) _4 / ZrO_2 solid acid catalyst was prepared from hydrothermally modified zirconium hydroxide .

过氧化锆酸前驱体在加热过程中开始晶化的温度要比氢氧化锆晶化温度高。

The starting temperature of crystallization for the peroxidation zirconic acid precursor during the heating process is higher than that of zirconium hydroxide .

研究了采用氢氧化锆为吸附剂对洗盐水中的SO42-进行快速和低成本的脱除工艺。

The ZrO ( OH ) 2 as a selective adsorbent was used to quickly and low cost adsorb and remove SO42-from washing brine .

结果表明，锆原子在胶体中是以氢氧化锆四聚物的形式存在的，纳米氧化锆是四聚物脱去质子进一步缩聚的结果。

The results show that the zirconium atom exist as tetramer in sol and the nano zirconia is the product of deprotonation and polymerization of the tetramer .

首先制备氢氧化锆前驱体，然后对前驱体进行低温煅烧得到非晶态氧化锆纳米颗粒。

Firstly , amorphous zirconium hydroxide precursor is synthesized by heating of alcohol-aqueous salt solution , and then the precursor is calcined under low temperature in air to obtain amorphous nanoparticles .