XRD,XPS,EXAFS,IR TPD,NH 3 TPD and pulse microreactor were used to study the differences in metal dispersion and active constituents on the supports made by mixing γ Al 2O 3 with two different US SSY zeolites,obtained by quick and slow cooling method respectively.

XRD, 29Si, 27AI MAS NMR, the adsorption of nitrogen at low temperature,129Xe NMR, XPS, IR-TPD, NH3-TPD, the high vacuum volumetric analysis and pulse flow microreaction were used to study the difference in structure and property between the US-SSY zeolites obtained by quick and slow cooling after treating SSY zeolite with steam at high temperature.

In this paper,a producing technology of the self-cooling orange beverage has been introduced,the physical cooling principle and system structure are presented,the ingredients of the self-cooling orange beverage technical process and operation key points have been analysed as well.

This article briefs the basic performance,design,new manufacturing technique and technology of self-cooling enclosed isolated phase bus new products applicable to 1 000 MW generating units,as well as the situations of its passing the inspection,measuring,testing of the relevant national quality inspection center.

Preliminary treatment of bromamine acid aqueous solution by natural cold energy;

The change of organic matter in freezing field was researched utilizing the separation of organic matter in bromamine acid aqueous solution by natural cold energy in winter.

Based on the bittern from Yuncheng lake as raw material,this paper discusses the production process of industrial magnesium sulphate product with natural freezing on the rigid pond floor and the experiments proved the feasibility of this process.

The natural freezing method is a kind of treatment which is in low temperature, based on the phases’separation principle in physics chemistry.

Preliminary study on technology for ice-making using natural cold resource based on heat pipe;