FIELD: process engineering.
SUBSTANCE: invention relates to method of producing sorbent for trapping volatile types of radioactive iodine at nuclear power stations in operating and emergency conditions. Proposed method comprises impregnating silica gel, in single-stage process, with solution of silver and nickel nitrates in ammonium or with mix of solution of silver and nickel salts in ammonium. Note here that silver and nickel concentration in solutions is selected so that silver concentration in finished sorbent makes 1.0-2.0 wt % while molar ratio of Ni2+:Ag+ varies from 2:1 to 4:1. Then, drying is performed at temperature varying from room temperature to 300°C. Now, holding is performed at said temperature for four hours.
EFFECT: faster synthesis, sufficiently high properties.
| Title | Year | Author | Number |
|---|---|---|---|
| SILICA GEL-BASED SORBING AGENT FOR RADIOIODINE RECOVERY | 2007 |
|
RU2346347C1 |
| SILICA GEL-BASED SORBING AGENT FOR RADIOIODINE RECOVERY | 2007 |
|
RU2346346C2 |
| UNIT FOR CLEANING GAS STREAMS FROM VOLATILE CESIUM AND IODINE COMPOUNDS FORMED DURING HIGH-TEMPERATURE PROCESSING OF SPENT NUCLEAR FUEL | 2023 |
|
RU2808719C1 |
| GAS PURIFIER FOR CAPTURING VOLATILE FISSION PRODUCTS (OPTIONS) | 2022 |
|
RU2792406C1 |
| COMPOSITE MATERIAL FOR LOCALISING MOLECULAR FORM OF RADIOACTIVE IODINE | 2009 |
|
RU2395858C1 |
| CATALYST FOR OZONE DECOMPOSITION AND METHOD OF ITS PRODUCTION | 2024 |
|
RU2825951C1 |
| SORPTION MATERIAL LOCATING MOLECULAR RADIOIODINE FROM AQUEOUS NPP COOLANT BASED ON ION-EXCHANGE RESINS | 2007 |
|
RU2345431C2 |
| METHOD FOR TRAPPING RADIONUCLIDES FROM GASEOUS PHASE | 1993 |
|
RU2084027C1 |
| SORBENT FOR TRAPPING VOLATILE FORMS OF RADIOACTIVE OR STABLE ISOTOPES FROM GASEOUS PHASE | 2007 |
|
RU2355056C1 |
| ZEOLITE-BASED SORBENT | 1995 |
|
RU2104085C1 |
