EP 4263470 A1 20231025 - METHOD FOR PRODUCING AN AMMONIUM-BASED SOLID, PARTICULATE COMPOSITION COMPRISING AN ADDITIVE
Title (en)
METHOD FOR PRODUCING AN AMMONIUM-BASED SOLID, PARTICULATE COMPOSITION COMPRISING AN ADDITIVE
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER FESTEN TEILCHENFÖRMIGEN ZUSAMMENSETZUNG AUF AMMONIUMBASIS MIT EINEM ADDITIV
Title (fr)
PROCÉDÉ DE PRODUCTION D'UNE COMPOSITION PARTICULAIRE SOLIDE À BASE D'AMMONIUM COMPRENANT UN ADDITIF
Publication
Application
Priority
- EP 20216179 A 20201221
- EP 2021086935 W 20211221
Abstract (en)
[origin: EP4015488A1] A method is disclosed for producing an ammonium-based solid, particulate composition comprising an additive in a plant comprising a liquid section and a solid section comprising a particulation unit and an effluent gas treatment unit comprising a scrubber, a scrubber solution storage container and optionally a scrubber evaporator, the method comprising the steps of:(a) preparing a melt comprising an ammonium salt in the liquid section of the plant;(b) particulating the melt prepared in step (a) in the particulation unit thereby obtaining an ammonium-based solid, particulate composition and an effluent gas comprising ammonia;(c) preparing an aqueous scrubbing solution;(d) treating the effluent gas comprising ammonia from the particulation unit with the aqueous scrubbing solution prepared in step (c) in the scrubber of the effluent gas treatment unit thereby producing a scrubber solution;(e) storing the scrubber solution produced in step d) in the scrubber solution storage of the effluent gas treatment unit; and(f) optionally, concentrating the scrubber solution from the scrubber solution storage container in the scrubber evaporator thereby obtaining a concentrated scrubber solution;(g) adding the scrubber solution obtained from step e) or f) to the melt comprising an ammonium salt;wherein an additive is added in solid form to any one or more of the aqueous scrubbing solution prepared in step c), the scrubber solution in the scrubber solution storage, or the scrubber concentrator.
IPC 8 full level
C05B 7/00 (2006.01); C05C 1/02 (2006.01); C05C 3/00 (2006.01); C05G 3/90 (2020.01); C05G 5/12 (2020.01); C05G 5/30 (2020.01)
CPC (source: EP)
C05B 7/00 (2013.01); C05C 1/02 (2013.01); C05C 3/005 (2013.01); C05G 3/90 (2020.02); C05G 5/12 (2020.02); C05G 5/38 (2020.02); Y02P 60/21 (2015.11)
Citation (search report)
See references of WO 2022136338A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4015488 A1 20220622; EP 4263470 A1 20231025; WO 2022136338 A1 20220630
DOCDB simple family (application)
EP 20216179 A 20201221; EP 2021086935 W 20211221; EP 21839223 A 20211221