| 发明名称 |
METHOD FOR EXTRACTION RECOVERY OF PHENOL, NITROPHENOLS OR HALOGEN-SUBSTITUTED NITROPHENOLS OF AQUEOUS SOLUTIONS COMPRISING 4-NITROSORESORCIN |
| 摘要 |
FIELD: analytic chemistry, namely, analytic control of sewage which comprises phenol, nitrophenols and halogen-substituted nitrophenols and 4-nitrosoresorcin. SUBSTANCE: sample of water is acidified to pH 2-3. Then ammonium sulfate is added, its quantity being 38.5-40.0 % of weight of solvent. The process is followed by extraction with acetone. EFFECT: improved efficiency of the method. 2 tbl
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| 申请公布号 |
RU2114814(C1) |
申请公布日期 |
1998.07.10 |
| 申请号 |
RU19960112233 |
申请日期 |
1996.06.17 |
| 申请人 |
VORONEZHSKAJA GOSUDARSTVENNAJA TEKHNOLOGICHESKAJA;VORON G T |
发明人 |
KORENMAN JA.I.;ERMOLAEVA T.N.;MISHINA A.V. |
| 分类号 |
C07C37/72;C07C37/88;C07C39/04;C07C201/16;C07C205/06;C07C207/04;(IPC1-7):C07C37/72 |
主分类号 |
C07C37/72 |
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