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1. (WO2019025276) METHOD FOR DETERMINING SCALE INHIBITOR CONCENTRATION IN SALT WATER WITH A CALCIUM/MAGNESIUM IONSELECTIVE ELECTRODE
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Pub. No.: WO/2019/025276 International Application No.: PCT/EP2018/070273
Publication Date: 07.02.2019 International Filing Date: 26.07.2018
IPC:
G01N 27/333 (2006.01) ,C02F 5/00 (2006.01) ,G01N 33/18 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26
by investigating electrochemical variables; by using electrolysis or electrophoresis
28
Electrolytic cell components
30
Electrodes, e.g. test electrodes; Half-cells
333
Ion-selective electrodes or membranes
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5
Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
18
Water
Applicants:
SCHELLBACH, Winfried [DE/DE]; DE
BASF SE [DE/DE]; Carl-Bosch-Strasse 38 67056 Ludwigshafen am Rhein, DE
Inventors:
SCHELLBACH, Winfried; DE
NIED, Stephan; DE
Agent:
BASF IP ASSOCIATION; BASF SE G-FLP - C006 67056 Ludwigshafen, DE
Priority Data:
17184861.704.08.2017EP
Title (EN) METHOD FOR DETERMINING SCALE INHIBITOR CONCENTRATION IN SALT WATER WITH A CALCIUM/MAGNESIUM IONSELECTIVE ELECTRODE
(FR) PROCÉDÉ DE DÉTERMINATION DE LA CONCENTRATION D'INHIBITEUR DE TARTRE DANS UNE EAU SALÉE À L'AIDE D'UNE ÉLECTRODE IONOSÉLECTIVE DE CALCIUM/MAGNÉSIUM
Abstract:
(EN) The present invention relates to a method for determining a concentration of a scale inhibitor in a salt water comprising an analysis with a calcium/magnesium ionselective electrode of a dialyzed first sample of the salt water, and a dialyzed second sample of the salt water which was supplemented with a known concentration of the scale inhibitor. The inventon further relates to a method for inhibiting incrustation in a plant which contains a salt water comprising the steps of adding a scale inhibitor to the salt water at a desired concentration, determining the actual concentration of the scale inhibitor in the salt water as above, and adding further scale inhibitor to the salt water to adjust the desired concentration. The invention further relates to a device for determining a concentration of a scale inhibitor in a salt water by the method above comprising a calcium/magnesium ionselective electrode, a dialyzing unit, and a dosage unit for supplementing the scale inhibitor to the second sample of the salt water.
(FR) La présente invention concerne un procédé de détermination d'une concentration d'un inhibiteur de tartre dans une eau salée, consistant à analyser, à l'aide d'une électrode ionosélective de calcium/magnésium, un premier échantillon dialysé de l'eau salée, ainsi qu'un second échantillon dialysé de l'eau salée qui a été complété d'une concentration connue de l'inhibiteur de tartre. L'invention concerne en outre un procédé d'inhibition d'incrustation dans une plante qui contient une eau salée, comprenant les étapes consistant à : ajouter un inhibiteur de tartre à l'eau salée à une concentration souhaitée, déterminer la concentration réelle de l'inhibiteur de tartre dans l'eau salée comme ci-dessus ; et ajouter un inhibiteur de tartre supplémentaire à l'eau salée pour ajuster la concentration souhaitée. De plus, l'invention concerne un dispositif qui est destiné à déterminer une concentration d'un inhibiteur de tartre dans une eau salée à l'aide du procédé ci-dessus, et comprend une électrode ionosélective de calcium/magnésium, une unité de dialyse, ainsi qu'une unité de dosage destinée à ajouter l'inhibiteur de tartre au second échantillon de l'eau salée.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)