FIELD: technology of water and air purification.
SUBSTANCE: invention relates to the sorption treatment of wastewater from heavy metal compounds. Method for obtaining a sorbent for extracting heavy metals from solutions based on polycondensation of S22+, which are generated by dissolving sulfur in a mixture of hydrazine hydrate monoethanolamine at a molar ratio of 10:1 and at a temperature of 60–65 °C. As organic comonomers, a mixture of trifunctional monomer – 1,2,3-trichloropropane and bifunctional chloromix monomer or dichlorodiethylformal is used at a molar ratio of 1,2,3-trichloropropane : oxygen-containing comonomer 70:30÷80:20 %. Process of polycondensation is carried out at a temperature of 75–85 °C.
EFFECT: invention provides a sorbent with high technological characteristics.
1 cl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING A SORBENT TO EXTRACT HEAVY METALS FROM WASTEWATER | 2016 |
|
RU2624319C1 |
| METHOD OF PRODUCING SORBENT FOR REMOVING HEAVY METALS FROM WASTE WATER | 2014 |
|
RU2558896C1 |
| METHOD OF PRODUCING SULPHUR-CONTAINING SORBENTS FOR REMOVING HEAVY METALS FROM WASTE WATER | 2010 |
|
RU2475299C2 |
| METHOD OF PRODUCING SORBENT FOR EXTRACTING MERCURY COMPOUNDS FROM AQUEOUS SOLUTIONS | 2012 |
|
RU2525416C2 |
| METHOD OF OBTAINING A SULFURIZED LIGNIN AND USING IT AS A SORBENT FOR HEAVY METAL COMPOUNDS | 2015 |
|
RU2624311C2 |
| METHOD OF PRODUCTION OF ADSORBENT FOR REMOVAL OF HEAVY METALS FROM WASTE WATER | 2006 |
|
RU2324536C2 |
| METHOD FOR PRODUCING ALUMINOSILICATE SORBENT FOR PURIFICATION OF NATURAL AND WASTE WATERS FROM HEAVY METAL IONS | 2020 |
|
RU2748595C1 |
| USE OF POLY(3-OXAPENTYLENEDISULPHIDE) FOR EXTRACTION OF HEAVY METALS FROM AQUEOUS SOLUTIONS | 2015 |
|
RU2590537C1 |
| SORBENT BASED ON HUMIC SUBSTANCES OF BLACK ALDER LOWLAND PEAT | 2020 |
|
RU2751657C1 |
| METHOD OF PRODUCING ION-EXCHANGE SORBENT FOR REMOVING HEAVY METALS AND ORGANIC SUBSTANCES FROM WASTE WATER | 2014 |
|
RU2564345C1 |
