Title:
SULFATE DISPERSION CHROMATE REDUCER
Document Type and Number:
WIPO Patent Application WO2005056860
Kind Code:
A3
Abstract:
A chromium VI reducing composition comprising particles of solid material selected from the group consisting of iron (II) sulfate and tin sulfate, the particles being substantially uniformly dispersed within a liquid carrier. Methods for modifying hydratable cementitious materials using the chromium reducing composition are also disclosed and provide advantages over dry powder or dissolved forms of sulfate compositions when used in cement manufacturing.
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Inventors:
JARDINE LESLIE A (US)
CORNMAN CHARLES R (US)
GEARY DAVID T (US)
GUPTA VIJAY (US)
CHUN BYONG-WA (US)
CORNMAN CHARLES R (US)
GEARY DAVID T (US)
GUPTA VIJAY (US)
CHUN BYONG-WA (US)
Application Number:
PCT/US2004/022430
Publication Date:
August 11, 2005
Filing Date:
July 13, 2004
Export Citation:
Assignee:
GRACE W R & CO (US)
JARDINE LESLIE A (US)
CORNMAN CHARLES R (US)
GEARY DAVID T (US)
GUPTA VIJAY (US)
CHUN BYONG-WA (US)
JARDINE LESLIE A (US)
CORNMAN CHARLES R (US)
GEARY DAVID T (US)
GUPTA VIJAY (US)
CHUN BYONG-WA (US)
International Classes:
C04B7/00; C04B22/12; C04B22/14; C04B40/00; (IPC1-7): C04B7/00
Foreign References:
| US4784691A | 1988-11-15 | |||
| US4209335A | 1980-06-24 | |||
| EP0960865A1 | 1999-12-01 | |||
| EP0976695A1 | 2000-02-02 | |||
| DE29915326U1 | 2000-07-13 | |||
| JPH06117098A | 1994-04-26 | |||
| JPH06100343A | 1994-04-12 | |||
| DE20015326U1 | ||||
| US2897090A | 1959-07-28 | |||
| US6821507B2 | 2004-11-23 | |||
| US6048393A | 2000-04-11 | |||
| US5362321A | 1994-11-08 |
Other References:
DATABASE ACS [online] GMBH F.D. ET AL, accession no. STN Database accession no. (139:310988)
DATABASE ACS [online] 21 May 2003 (2003-05-21), NAKANISHI ET AL: "Hydraulic cement composotion for elution prevention of hexavalent chromium.", accession no. STN Database accession no. (138:372964)
DATABASE ACS [online] 14 August 2001 (2001-08-14), NOMURA ET AL: "Cement additive containing ferrous sulfate.", accession no. STN Database accession no. (135:156703)
DATABASE ACS [online] 5 June 2001 (2001-06-05), NOMURA ET AL: "Cement-based hydraulic composition having high hexavalent chromium fixing capability.", accession no. STN Database accession no. (135:23557)
DATABASE ACS [online] 29 January 1974 (1974-01-29), TAKAHASHI ET AL: "Treating slags containing chromium.", accession no. STN Database accession no. (81:111233)
DATABASE ACS [online] 9 November 1973 (1973-11-09), TAKAHASHI ET AL: "Treatment of waste cement solutions.", accession no. STN Database accession no. (80:40717)
DATABASE ACS [online] 4 October 1988 (1988-10-04), MIYATAKE ET AL: "Coating compositions for decorative use.", accession no. STN Database accession no. (110:175247)
DATABASE ACS [online] 19 September 1974 (1974-09-19), SAUTTER ET AL: "Electrolytic coloring of anodized aluminum.", accession no. STN Database accession no. (81:179110)
DATABASE ACS [online] 21 May 2003 (2003-05-21), NAKANISHI ET AL: "Hydraulic cement composotion for elution prevention of hexavalent chromium.", accession no. STN Database accession no. (138:372964)
DATABASE ACS [online] 14 August 2001 (2001-08-14), NOMURA ET AL: "Cement additive containing ferrous sulfate.", accession no. STN Database accession no. (135:156703)
DATABASE ACS [online] 5 June 2001 (2001-06-05), NOMURA ET AL: "Cement-based hydraulic composition having high hexavalent chromium fixing capability.", accession no. STN Database accession no. (135:23557)
DATABASE ACS [online] 29 January 1974 (1974-01-29), TAKAHASHI ET AL: "Treating slags containing chromium.", accession no. STN Database accession no. (81:111233)
DATABASE ACS [online] 9 November 1973 (1973-11-09), TAKAHASHI ET AL: "Treatment of waste cement solutions.", accession no. STN Database accession no. (80:40717)
DATABASE ACS [online] 4 October 1988 (1988-10-04), MIYATAKE ET AL: "Coating compositions for decorative use.", accession no. STN Database accession no. (110:175247)
DATABASE ACS [online] 19 September 1974 (1974-09-19), SAUTTER ET AL: "Electrolytic coloring of anodized aluminum.", accession no. STN Database accession no. (81:179110)
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