| 发明名称 |
METHOD OF O-CHLOROBENZALMALONONITRILE PURIFICATION |
| 摘要 |
FIELD: chemistry.SUBSTANCE: method of o-chlorobenzalmalononitrile purification includes removal of admixtures and further processing of formed wastes to compounds, which are not ecological pollutants. Method is characterised by the fact that removal of admixtures from melt is carried out at temperature mode 120-130°C and residual vacuum 40-50 mm Hg with further processing of by-products with 20-25% steam-ammonia mixture at temperature 120-130°C. Method makes it possible to purify o-chlorobenzalmalononitrile to content of main substance not lower than 97%, which makes it suitable for further application.EFFECT: increase of purification.1 tbl, 6 ex |
| 申请公布号 |
RU2539294(C1) |
申请公布日期 |
2015.01.20 |
| 申请号 |
RU20130154382 |
申请日期 |
2013.12.06 |
| 申请人 |
FEDERAL'NOE GOSUDARSTVENNOE KAZENNOE UCHREZHDENIE"33 TSENTRAL'NYJ NAUCHNO-ISSLEDOVATEL'SKIJ ISPYTATEL'NYJ INSTITUT" MINISTERSTVA OBORONY ROSSIJSKOJ FEDERATSII |
发明人 |
KOSTJUCHENKO IGOR' VALER'EVICH;EREMIN SERGEJ ANATOL'EVICH;IVASHEV IGOR' PETROVICH;BOLGOV PETR ALEKSEEVICH;SEREBRENNIKOV BORIS VASIL'EVICH;LOSKUTOV ANATOLIJ JUR'EVICH;KUKHOTKIN SERGEJ VLADIMIROVICH |
| 分类号 |
C07C253/34;A62D101/26;C07C255/35 |
主分类号 |
C07C253/34 |
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