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1. (WO2014188067) ANTISCALANT COMPOSITION AND ITS USE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/188067    International Application No.:    PCT/FI2014/050380
Publication Date: 27.11.2014 International Filing Date: 20.05.2014
IPC:
D21C 9/08 (2006.01), D21H 17/10 (2006.01), D21H 17/43 (2006.01), D21H 17/66 (2006.01), D21H 21/02 (2006.01)
Applicants: KEMIRA OYJ [FI/FI]; Porkkalankatu 3 FI-00180 Helsinki (FI)
Inventors: PUUPPONEN, Salla; (FI).
KONN, Jonas; (FI)
Agent: TURUN PATENTTITOIMISTO OY; P.O. Box 99 FI-20521 Turku (FI)
Priority Data:
20135537 20.05.2013 FI
Title (EN) ANTISCALANT COMPOSITION AND ITS USE
(FR) COMPOSITION ANTI-TARTRE ET SON UTILISATION
Abstract: front page image
(EN)The invention relates to a liquid antiscalant composition for reducing calcium oxalate scale formation. The composition comprises a polyanionic antiscalant agent having a plurality of anionic groups, which antiscalant agent is selected from the group consisting of polyphosphates, polymers comprising at least one carboxylic group and any of their mixtures. The antiscalant composition further comprises magnesium ions. The invention further relates to use of the antiscalant composition for inhibiting and/or reducing formation of calcium oxalate scale in pulp and paper industry.
(FR)L'invention concerne une composition anti-tartre liquide pour réduire la formation de tartre d'oxalate de calcium. La composition comprend un agent anti-tartre polyanionique contenant une pluralité de groupes anioniques, l'agent anti-tartre étant choisi dans le groupe constitué de polyphosphates, de polymères comprenant au moins un groupe carboxylique, et de mélanges quelconques de ceux-ci. La composition anti-tartre comprend en outre des ions magnésium. L'invention concerne en outre l'utilisation de la composition anti-tartre pour inhiber et/ou réduire la formation de tartre d'oxalate de calcium dans l'industrie de la pâte à papier et du papier.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)