(19)

(11)

EP 2 170 772 A1

(12)

(43) Date of publication: 07.04.2010 Bulletin 2010/14 (21) Application number: 07861071.4 (22) Date of filing: 29.11.2007

(51) International Patent Classification (IPC):  C02F 1/52(2006.01) C01G 23/00(2006.01) C02F 1/50(2006.01) C02F 103/04(2006.01) (86) International application number: PCT/RU2007/000669 (87) International publication number: WO 2009/005393 (08.01.2009 Gazette 2009/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 02.07.2007 RU 2007124531 (71) Applicant: Sittec Closed Joint Stock Company (Sittec CJSC) Moscow 123100 (RU)	(72) Inventors: RODAK, Vladimir Prokofievich Republic Komi Uchta 169300 (RU) MULIAK, Vladimir Vitalievich Moscow 119034 (RU) ISAEV, Georgii Michailovich Republic Komi Uchta 169347 (RU) HABIBULLIN, Azat Ravmerovich Perm 614000 (RU) SHISHKINA, Svetlana Valerianovna Republic Komi Uchta 169347 (RU) (74) Representative: Valea AB  Teknikringen 10 583 30 Linköping 583 30 Linköping (SE)