基于专利计量的汞污染治理技术态势分析

Analysis on the international development trends of mercury pollution abatement technology based on patent bibliometrics

汞污染问题已经成为全球关注的热点问题。目前,汞的污染主要来自燃煤、冶金等过程无意排放的含汞废气、废水和废渣,以及主要涉汞行业产生的含汞废物。根据污染物的最终形态,可将汞的污染治理技术分为大气、水、土壤的脱汞和回收技术。为揭示全球汞污染治理技术的发展态势,对Derwent Innovations Index中的相关库存专利进行计量分析,通过剖析主要申请国家/地区、重要专利权人和关键研发技术,研究该领域从1949年以来的专利活动特点及发展现状,其结果可为我国相关机构的研发布局和决策提供参考。

Mercury pollution has become a major global issue.At present,mercury pollution mainly comes from mercury-contained waste gas,water and residues which unintentionally emitted during coal-burning and mining process,as well as mercury-contained waste produced in mercury-related industry.According to the final forms of pollutants,the main mercury pollution abatement technologies are classified as mercury removal or recycling ones in atmosphere,water and soil.In this review,the global patents related to mercury pollution abatement technology in Derwent Innovations Index were analyzed.Information related to the main countries,important applicants,key technologies was identified,and the activity characteristic and current status of mercury-related patents have been studied since 1949.The results will provide reference for R&D layout and policy making of related institutions in China.