采用碳化法制备磷改性氢氧化铝及其性能研究  

Preparation of Phosphorus Modified Aluminum Hydroxide by Carbonization Method and Its Performance Research

作　　者：侯俊琦 燕京 高步良 

机构地区：[1]山东齐鲁科力化工研究院有限公司,山东淄博255086

出　　处：《当代化工》2015年第4期695-698,共4页Contemporary Chemical Industry

摘　　要：研究了碳化法制备磷改性氢氧化铝干胶的性质及其影响因素,分别用XRD、N2吸附、NH3-TPD表征样品的结构、晶体形貌、孔分布及酸性质。在碳化成胶过程中引入磷制备的磷改性氢氧化铝,磷的分散度较高;随磷含量增加,产物晶粒变小、结晶度降低、晶型变得不完整,孔径变大、孔容随之增大,表面酸性分布也发生相应变化。Aluminium hydroxide was firstly synthesized by using carbonization method, and then phosphorus modified aluminum hydroxide samples were obtained through introduction of phosphorus compounds. The samples were characterized by XRD, N2 adsorption and desorption and NH3-TPD analysis in order to examine its structure, crystal morphology, pore distribution and acidic properties. The results show that the phosphorus of phosphorus modified aluminum hydroxide with high dispersion exists in the product system; with the increase of phosphorus content, product grain decreases and crystallinity reduces, crystal becomes incomplete. In addition, phosphorus also makes the pore diameter of the sample largen and pore volume increase. NH3-TPD tests indicate that surface acidity distribution also change accordinglv.

关 键 词：氢氧化铝干胶 碳化法 磷改性 结晶度 孔径分布 酸性质 

分 类 号：TQ028[化学工程]