FIELD: sewage treatment facilities.
SUBSTANCE: invention may be used in production of fluoroberyllate ammonia - initial product for production of beryllium and its compounds. Method for processing of beryllium metal wastes includes operations of flushing from foreign admixtures, chopping to size of 2-5 mm and dilution in solution of ammonia bifluoride during heating. Process of beryllium metal wastes dilution is done in presence of oxidant - nitric acid or ammonia nitrate taken in amount of 0.4-0.8 mole per mole of metal powder, at the temperature of 85-90°C. Ammonia bifluoride is taken in amount of 180-200% from stoichiometry.
EFFECT: invention makes it possible to reduce release of fire-and-explosive hazardous gaseous hydrogen and to prevent possible exhaust of highly toxic fluoride-beryllium pulp from reactor.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF AMMONIUM FLUORO-BERYLLATE | 2004 |
|
RU2265576C1 |
| METHOD OF OBTAINING BERYLLIUM FLUORIDE | 2012 |
|
RU2494964C1 |
| METHOD OF PRODUCTION OF THE AMMONIUM FLUOROBERYLLATE | 2006 |
|
RU2310605C1 |
| METHOD OF RECYCLING WASTES OF METALLIC BERYLLIUM AND SPECIAL CERAMICS BASED ON BERYLLIUM OXIDE | 2012 |
|
RU2493101C1 |
| METHOD OF OBTAINING BERYLLIUM OXIDE AND BERYLLIUM METAL | 2015 |
|
RU2624749C2 |
| METHOD OF PROCESSING BERYLLIUM METAL WASTES | 2012 |
|
RU2492144C1 |
| METHOD OF EXTRACTING BERYLLIUM BY ION EXCHANGE | 2014 |
|
RU2571763C1 |
| METHOD FOR LEACHING METALLIC COPPER | 2020 |
|
RU2749961C1 |
| REMOVAL OF NITROGEN FROM NITROGEN COMPOUNDS IN AQUEOUS PHASE | 1992 |
|
RU2104951C1 |
| UREA-CONTAINING ETCHING AGENT AND A METHOD FOR PREPARATION THEREOF | 2001 |
|
RU2259422C2 |
