FIELD: chemistry.
SUBSTANCE: present invention refers to the methods for preparation of nitroso derivatives of lignosulphonates. The solution of lignosulphonates and the salts of nitrous acid undergo the electrochemical treatment during 5…20 min at voltage 2…10 V and nitrite consumption 5…30% of lignosulphonates mass.
EFFECT: claimed method allows simplifying and acceleration of the nitrosation without evolving of toxic nitrogen oxides.
18 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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RU2566503C1 |
| METHOD FOR NITROSATION OF SULPHATE LIGNIN | 2023 |
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| ORGANIC COMPONENT OF THE NUTRIENT MIXTURE FOR PLANTS | 2016 |
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| METHOD OF SYNTHESIS OF ALKALINE-SOLUBLE IRON CHELATE | 1998 |
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| METHOD OF PRODUCING MAGNETOACTIVE COMPOUND | 2011 |
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| METHOD OF DETERMINING NITRATE, REDUCING AGENT AND A METHOD OF PREPARATION THEREOF | 2001 |
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| 0 |
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SU311202A1 | |
| METHOD FOR PRODUCTION OF AROMATIC ALDEHYDES FROM LIGNIN-CONTAINING MATERIAL | 2000 |
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RU2164511C1 |
| METHOD OF PREPARING 1-NITROSO-4-METHYLPIPERAZINE | 1993 |
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RU2095355C1 |
| METHOD FOR PREPARING TRINITRORESORCINOL | 2003 |
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