| 发明名称 |
METHOD OF PREPARING HUMIC DYE FOR WOOD |
| 摘要 |
FIELD: technology of natural dyes. SUBSTANCE: claimed method comprises modifying peat with aqueous solution of sodium carbonate in the presence of 1-2 wt % ammonia and 0.5-3.0 wt % nitrobenzene calculated for modifying aqueous solution at 150-200 C. EFFECT: more efficient preparation method. 1 tbl4
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| 申请公布号 |
RU2105018(C1) |
申请公布日期 |
1998.02.20 |
| 申请号 |
RU19920008304 |
申请日期 |
1992.11.25 |
| 申请人 |
MALOE PROIZVODSTVENNOE VNEDRENCHESKOE PREDPRIJATIE;TEKHPROMPROEKTEHKOLOGIJA |
发明人 |
GAVRIL'CHIK ALEKSANDR PETROVICH;BYSTRAJA ALEKSANDRA VENIAMINOVNA;MAL' SUSANNA SEMENOVNA;SOLOV'EV VITALIJ LEONIDOVICH;GAVRIL'CHIK ALEKSANDR PETROVICH;BYSTRAJA ALEKSANDRA VENIAMINOVNA;MAL' SUSANNA SEMENOVNA;SOLOV'EV VITALIJ LEONIDOVICH |
| 分类号 |
C09B61/00;(IPC1-7):C09B61/00 |
主分类号 |
C09B61/00 |
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