At present, the industrial production of cold oil, without refining it is hard to reach the standard consumption;And give priority to the traditional refining technology is based on chemical refining, exist problem of high energy consumption, the consumption of smelting high and low quality, does not apply to the moderate refining.Aiming at the problems above, this study with Cold pressed rapeseed oil (Cold - pressed rapeseed oils, CROs) as the research object, and plans to study to develop a suitable for CROs is moderately low temperature clean refining technology, through the study of Phospholipids was prepared (Phospholipids, PLS) adsorbent and Free fatty acid (FFA) Free fattyacids, adsorbent, adsorption removal PLS and FFA respectively;And analyzes the key features of CROs, in order to further improve the quality of CROs and development with cold oil provide theoretical basis for the deep processing products and support.The palm oil mill (http://www.palmmill.com) research results are as follows: 1, with calcium base montmorillonite as raw material, sodium preparation to turn it into a Solid dephosphorization agent (Solid dephosphorization agent, SDPA), scanning electron microscopy are used, such as X-ray diffraction (XRD) and thermogravimetric analysis method for microstructure analysis;Key research SDPA adsorption behavior of PLS.The results show that the SDPA belongs to the preferential adsorption of PLS, Freundlich model can better fit the static adsorption process;At the same time, proposed secondary adsorption dynamics model applicable to describe the adsorption dynamics;In addition, the adsorption process is endothermic and the hair;Adsorption mechanism is: the SDPA provides strong lewis acid sites, with the strong lewis base on the molecular groups PLS coordinate bond, forming stable lewis acid complexes.2, by the fiber element base material was prepared by Cellulose base solid acid stripping agent (Cellulose - -based deacidfication adsorbent, CDA),...