FIELD: process engineering.
SUBSTANCE: invention relates to cleaning of ventilation emissions from toxic substances. To remove anhydrous hydrogen fluoride from ventilation gases, fibrous material FIBAN with moisture content of 60-100%. FIBAN A-5 and A-6N fibrous sorbent is used for removal of anhydrous hydrogen fluoride. During anhydrous hydrogen fluoride breakthrough in sorbent, its content is increased not over 2.5-4.0% of its initial magnitude. For catching uranium hexafluoride FIBAN A-5 and FIBAN AK-22 ionite materials are used.
EFFECT: reduced number of cleaning stages.
4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CHEMICAL ABSORBER OF SOUR GASES AND METHOD OF MANUFACTURE OF SORE GASES ABSORBER | 2004 |
|
RU2283175C2 |
| METHOD OF PRODUCING MIXED FLUORINE SORBENT FOR CLEANING OF HEXAFLUORIDES OF TUNGSTEN, URANIUM, MOLYBDENUM AND RHENIUM FROM HYDROGEN FLUORIDE | 2009 |
|
RU2408421C1 |
| METHOD OF NEUTRALIZATION OF THE FLUORINE-CONTAINING GASES | 2006 |
|
RU2314862C1 |
| CHEMICAL ABSORBENT FOR NEUTRALISING GAS EMISSIONS AND METHOD OF PREPARING SAID ABSORBENT FOR USE | 2009 |
|
RU2409418C2 |
| METHOD FOR SEPARATING FLUOR CONTAINING GAS MIXTURES | 2006 |
|
RU2328335C1 |
| METHOD CLEANING URANIUM HEXAFLUORIDE FROM TECHNETIUM-99 NUCLIDE | 2006 |
|
RU2326052C2 |
| METHOD FOR ISOLATION OF URANIUM HEXAFLUORIDE FORM ITS MIXTURE WITH HYDROGEN FLUORIDE | 2004 |
|
RU2273605C2 |
| CHEMICAL ABSORBING AGENT FOR FLUORINE-CONTAINING GAS CAPTURE | 1992 |
|
RU2047329C1 |
| CHEMICAL ABSORBER FOR RENDERING HALOGEN-CONTAINING AND SOUR GASES HARMLESS AND METHOD OF MAKING OF CHEMICAL ABSORBER | 2004 |
|
RU2283176C2 |
| METHOD OF PREPARING SODIUM FLUORIDE-BASED GRANULAR MIXED FLUORIDE SORBENT | 2007 |
|
RU2408420C2 |
