A high vacuum composite technique for the production of salt under vacuum was designed, its unit flow, working principle, function of cooling tower and vacuum pump were introduced.

设计了一种用于真空制盐的新型高真空组合技术，介绍了该技术的装置流程、工作原理及凉水塔、真空泵等设备的功能。

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This paper introduced the study and result of the application of Mother liquid in the Vacuum salt industry on the Cleaner production technique of Co-production of salt and sodium sulfate.

介绍了盐硝联产清洁生产工艺在真空制盐企业排放的制盐母液中的研究和应用成果，并阐述了潜在的应用前景。

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