In light of theorectical analysis of the phase diagram of Na+,Mg2+∥Cl-,SO2-4—H2O system,and based on experiments of low-temperature refrigeraton and room-temperature evaporation of inter-crystal brine in Tulantai salt-saltpeter lake,Inner Mongolia,the processes and parameters for the comprehensive utilization of brine were optimized.

Study on preparation of KNO_3 from the brine in Luobupo (Ⅱ) the isothermal evaporation experiment;

Study on isothermal evaporation of salt lake brine in Lop nur region;

It is necessary to carry out an isothermal evaporation experiment at lower temperatures to understand the crystalization path of salt mnerals at ambient temperatures.

A refrigerating system for freezing fish products using two evaporating temperatures is discussed in detail by means of theoretical analysis, calculation and consideration of operating effects.

With a designed supercooled-water ice making system test-bed, carries out grouping experiments for different evaporating temperatures and water flow rates.

Some researches in an ice harvester machine are made which indicate that the evaporating temperature is the most significant factor which influence the COP (Coefficient of Performance) of a refrigeration compressor while both the evaporating temperature and the condensing temperature are two main factors.