发明名称 |
METHOD OF CONCENTRATING PYROGALLOL FROM AQUEOUS SOLUTIONS |
摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a method of concentrating pyrogallol from aqueous solutions, which can be recommended for analytical inspection of sewage coming in for biological treatment. The dislcosed method involves concentration of pyrogallol from aqueous solutions acidified to pH=1-5 at temperature of 20±2°C using an organic solvent of tributyl phosphate, said tributyl phosphate modifying crushed rigid polyurethane foam in weight ratio of polyurethane foam to tributyl phosphate equal to 1:(2.0-2.6).EFFECT: method increases the concentration factor of pyrogallol and reduces consumption of organic solvent.2 ex, 1 tbl |
申请公布号 |
RU2471764(C1) |
申请公布日期 |
2013.01.10 |
申请号 |
RU20110145558 |
申请日期 |
2011.11.09 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA VORONEZHSKAJA GOSUDARSTVENNAJA TEKHNOLOGICHESKAJA AKADEMIJA (FGBOU VPO VGTA) |
发明人 |
KHARITONOVA LJUDMILA ALEKSEEVNA;SHIRIKOVA ANZHELIKA VALENTINOVNA |
分类号 |
C07C39/10;C07C37/72 |
主分类号 |
C07C39/10 |
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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