发明名称 |
METHOD OF MANUFACTURE OF FILTERING MATERIAL AND FILTERING MATERIAL MANUFACTURED BY THIS METHOD |
摘要 |
FIELD: water treatment; production of cation-exchange filters of spatial-globular structure used for complex cleaning of water from cations of heavy metals. ^ SUBSTANCE: proposed method includes condensation of formaldehyde with sulfo-resorcine followed by hardening; resorcine is added to aqueous solution of formaldehyde and sulfo-resorcine at pH=10-12; mixture thus obtained is kept under conditions ensuring simultaneous pre-condensation of sulfo-resorcine and resorcine with formaldehyde; poly-condensation of preoligomers thus obtained and subsequent hardening are performed in acid medium. Filtering material includes product of condensation of formaldehyde with resorcine in acid medium having spatial globular structure; filtering material contains product of condensation of formaldehyde with sulfo-resorcine and resorcine and additionally it contains functional groups SO3H characterized on infrared spectrum by absorption of material specimen by bands at minima of 1040 cm-1 (clearly defined band) and 1190 cm-1 (slightly pronounced band). ^ EFFECT: enhanced efficiency of removal of heavy materials from water. ^ 6 cl, 1 dwg, 1 tbl, 4 ex
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申请公布号 |
RU2297270(C1) |
申请公布日期 |
2007.04.20 |
申请号 |
RU20050133838 |
申请日期 |
2005.11.01 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "AKVATORIJA" (OOO "AKVATORIJA") |
发明人 |
FRIDKIN ALEKSANDR MIKHAJLOVICH;GREBENSHCHIKOV NIKOLAJ ROMANOVICH;SAFIN VALERIJ MANSUROVICH;SERUSHKIN MAKSIM IL'ICH;KOCHERGIN STANISLAV MIKHAJLOVICH |
分类号 |
B01D39/16 |
主分类号 |
B01D39/16 |
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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