HPW

When the HPW loading was in the range of 20%-40%, acidic unsaturated phosphotungstate was formed;

中等负载量（20%～40%）时形成酸性较强的不饱和磷钨酸盐；

When HPW loading was less than 35%, HPW was finely dispersed on the support surface.

当负载量小于35%时，HPW在活性炭和硅胶载体表面呈高度分散。

Fusel oil and acetic acid were used as raw materials in this experiment with heteropoly acid HPW/ MxOy as catalyzer.

本实验以杂醇油和乙酸为原料，杂多酸HPW/MxOy为催化剂。

Heteropoly acid, especially phosphorus tungsten acid ( HPW), as a kind of catalyst, with no pollution, multifunction and high activity, has gradually shown a good prospect in organic synthesis and other fields.

杂多酸，尤其是磷钨酸，作为一种对环境无污染，多功能，高活性的催化剂，在有机合成，石油化工等行业中逐渐显示出较好的应用前景。

When the HPW loading was over 40%, HPW crystal was formed on the surface of unsaturated phosphotungstate and covered some of the acid sites.

负载量大于40%时，在不饱和磷钨酸盐表面形成磷钨酸晶体。

Study on SiO_2 Aerogel Supported HPW Catalyst for THF Polymerization

SiO2气凝胶负载磷钨杂多酸催化THF聚合研究

NEW CATALYTIC MATERIALS AND CHEMICAL PROCESS INTENSIFICATION& Amorphous Alloy/ MSB Reactor and HPW ( s) Particulate/ SCD Process

新催化材料和化工过程强化&非晶态合金/磁稳定床反应器和负载型杂多酸/悬浮床催化蒸馏