EP 3571157 A1 20191127 - METHOD FOR FLEXIBLY CONTROLLING THE USE OF HYDROCHLORIC ACID FROM CHEMICAL PRODUCTION
Title (en)
METHOD FOR FLEXIBLY CONTROLLING THE USE OF HYDROCHLORIC ACID FROM CHEMICAL PRODUCTION
Title (de)
VERFAHREN ZUR FLEXIBLEN STEUERUNG DER VERWENDUNG VON SALZSÄURE AUS CHEMISCHER PRODUKTION
Title (fr)
PROCÉDÉ POUR LA COMMANDE FLEXIBLE DE L'UTILISATION D'ACIDE CHLORHYDRIQUE PROVENANT D'UNE PRODUCTION CHIMIQUE
Publication
Application
Priority
- EP 17152417 A 20170120
- EP 2018051088 W 20180117
Abstract (en)
[origin: WO2018134239A1] The invention relates to a method for flexibly controlling the use of hydrochloric acid having an HCl concentration of at least 10 wt%, in particular at a volume flow rate of at least 1 m³/h, obtained from a continuous chemical production process (A). In the method, purified hydrochloric acid (54) from a hydrochloric acid store (E) is optionally fed to a dispatch station (H), an HCl electrolysis station (F) and a chloralkali electrolysis station (L), which are consumption points for the hydrochloric acid, or to a neutralisation station (G) in that if one or more of said consumption points (H, F, L) is not available or if there are bottlenecks at the consumption points (H, F, L), the hydrochloric acid (54) is fed to the neutralisation station (G) and neutralised with concentrated alkali solution (55), in particular with concentrated sodium hydroxide solution, and the resulting salt solution (56) is fed either to the chloralkali process station (L) or to a disposal station (M).
IPC 8 full level
C01B 7/07 (2006.01); C02F 1/461 (2006.01); C02F 1/66 (2006.01); G06Q 10/00 (2012.01); C02F 101/12 (2006.01)
CPC (source: EP KR US)
C01B 7/04 (2013.01 - EP KR US); C01B 7/0706 (2013.01 - EP KR US); C02F 1/461 (2013.01 - KR US); C02F 1/66 (2013.01 - EP KR US); C02F 1/461 (2013.01 - EP); C02F 2101/12 (2013.01 - EP KR US); Y02W 90/00 (2015.05 - KR)
Citation (search report)
See references of WO 2018134239A1
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
DOCDB simple family (publication)
EP 3351505 A1 20180725; CN 110198914 A 20190903; EP 3571157 A1 20191127; JP 2020506859 A 20200305; KR 20190105590 A 20190917; US 11040878 B2 20210622; US 2019375635 A1 20191212; WO 2018134239 A1 20180726
DOCDB simple family (application)
EP 17152417 A 20170120; CN 201880007462 A 20180117; EP 18700374 A 20180117; EP 2018051088 W 20180117; JP 2019538621 A 20180117; KR 20197020805 A 20180117; US 201816479083 A 20180117