发明名称 |
METHOD FOR DEMERCURISATION OF FLUORESCENT LAMPS |
摘要 |
FIELD: chemistry.SUBSTANCE: method for demercurisation of fluorescent lamps includes breaking down said lamps and treating the wastes under a layer of a demercurisation solution prepared in advance, washing and sorting the wastes. The demercurisation solution is prepared through synthesis of calcium polysulphide formed in a demercurisation apparatus at 50°C from lime and sulphur in ratio of 1:2 with sulphur concentration of 51-100 g/l. An anionic surfactant in the form of alkyl sulphate is added to the solution in amount of 5% of the weight of lime and a nonionic surfactant in the form of sintanol (oxyethylated alcohol) is also added to the solution in amount of 10% of the weight of lime. After treating the wastes, the spent solution is discharged from the demercurisation apparatus, followed removal of mercury sulphide therefrom and feeding into a storage container, from which the purified solution is fed for preparing washing liquid.EFFECT: providing complete desorption of mercury from the glass surface, preventing decomposition of calcium polysulphide during preliminary storage before use, high ecological cleanness and efficiency of recycling fluorescent lamps by providing a closed recycling cycle.3 tbl |
申请公布号 |
RU2534319(C1) |
申请公布日期 |
2014.11.27 |
申请号 |
RU20130132718 |
申请日期 |
2013.07.15 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "BELGORODSKIJ GOSUDARSTVENNYJ TEKHNOLOGICHESKIJ UNIVERSITET IM. V.G. SHUKHOVA" |
发明人 |
BESSMERTNYJ VASILIJ STEPANOVICH;MIN'KO NINA IVANOVNA;TIKUNOVA INGA VIL'JAMOVNA;BONDARENKO NADEZHDA IVANOVNA;MURFAZALOVA ALEKSANDRA PETROVNA;GORODOV ANDREJ IVANOVICH |
分类号 |
C22B43/00;C22B3/04;C22B7/00 |
主分类号 |
C22B43/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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