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公开(公告)号：WO1997041064A1
公开(公告)日：1997-11-06
申请号：PCT/US1997006631
申请日：1997-04-21
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： CYTEC TECHNOLOGY CORP. , AVOTINS, V., Peter , RYLES, Roderick, G. , FLIEG, Gregory
IPC: C01F07/06
CPC classification number: C01F7/0653 , B01D21/01 , B01D21/26 , B01D21/262 , C01F7/0646 , C22B21/0015 , Y02P10/234
Abstract: Processes for improving solids/liquids separation efficiency in the Bayer process are disclosed, wherein Bayer process streams are treated with calcium or magnesium salts, flocculated with carboxylic acid or salt group-containing polymers, and centrifuged.
Abstract translation: 公开了用于提高拜耳方法中固体/液体分离效率的方法，其中拜耳法处理物流用钙或镁盐处理，用羧酸或含盐基聚合物絮凝，并离心。
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公开(公告)号：WO1997048732A3
公开(公告)日：1997-12-24
申请号：PCT/US1997009788
申请日：1997-06-05
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： CYTEC TECHNOLOGY CORP. , DAVIES, William, Bloor , HEALY, John, Edward , MILLER, Gary, Kaui, Lani , KOZAKIEWICZ, Joseph, J. , RYLES, Roderick, G.
IPC: C08J03/12
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公开(公告)号：EP1297057A2
公开(公告)日：2003-04-02
申请号：EP01939539.1
申请日：2001-05-25
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： HARLUKOWICZ, John , LEWELLYN, Morris , RYLES, Roderick, G.
IPC: C08J3/05
CPC classification number: C08J3/05 , C08J2333/26
Abstract: Polymer compositions comprised of small, dry polyacrylamide particles may be dispersed into water at industrially useful rates to form aqueous compositions, by separating the particles from each other and bringing them into contact with a moving stream of water in the manner described herein. The resulting aqueous compositions may be used as a treating solution in diverse applications such as flocculants in water treating, papermaking, mining, oil field, and biotechnological separations.
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公开(公告)号：EP0906358B1
公开(公告)日：2001-08-08
申请号：EP97931055.4
申请日：1997-06-05
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： DAVIES, William, Bloor , HEALY, John, Edward , MILLER, Gary, Kaui, Lani , KOZAKIEWICZ, Joseph, J. , RYLES, Roderick, G.
IPC: C08J3/12
CPC classification number: C08J3/122 , B01D1/14 , C02F1/56 , C08J11/02 , C08J2300/14 , Y10S210/928 , Y10S524/904 , Y10S525/934
Abstract: Processes for spray-drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and microemulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using spray-dried polymer particles and agglomerates in water-treating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.
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公开(公告)号：EP1297057B1
公开(公告)日：2005-09-28
申请号：EP01939539.1
申请日：2001-05-25
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： HARLUKOWICZ, John , LEWELLYN, Morris , RYLES, Roderick, G.
IPC: C08J3/05
CPC classification number: C08J3/05 , C08J2333/26
Abstract: Polymer compositions comprised of small, dry polyacrylamide particles may be dispersed into water at industrially useful rates to form aqueous compositions, by separating the particles from each other and bringing them into contact with a moving stream of water in the manner described herein. The resulting aqueous compositions may be used as a treating solution in diverse applications such as flocculants in water treating, papermaking, mining, oil field, and biotechnological separations.
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Patent Agency Ranking
公开(公告)号：EP1068162A1
公开(公告)日：2001-01-17
申请号：EP99909717.3
申请日：1999-03-02
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： NAGARAJ, D., R. , RYLES, Roderick, G. , ROTHENBERG, Alan, S.
CPC classification number: B03D3/06 , B03B1/04 , C01P2006/60 , C01P2006/80 , C09C1/42
Abstract: An improved process for the selective flocculation of impurities from clays is disclosed. The process comprises blunging the clay in the presence of dispersing agents, conditioning the blunged clay with aliphatic or aromatic hydroxamic acids, or salts thereof, flocculating the impurities with a high molecular weight polymeric flocculant, particularly polymers containing hydroxamate groups, and removing the flocculated impurities from the unflocculated clay. The use of hydroxamic conditioning agents improves the removal of impurities from the clay, thereby providing a clay product having high brightness and low level impurities. The hydroxamic acid conditioning agents may advantageously be used in combination with other conditioning additives and with a wide variety of polymeric flocculating agents.
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公开(公告)号：EP1226183B1
公开(公告)日：2004-08-18
申请号：EP00961960.2
申请日：2000-09-18
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： CYWAR, Douglas, A. , RYLES, Roderick, G. , HOLDSWORTH, Melvyn
IPC: C08F6/00
Abstract: Methods of preparing an acrylic polymer according to the present invention comprise the steps of: forming a gelled polymer by polymerizing a mixture containing an acrylic monomer and a photoinitiator; comminuting the gelled polymer to produce gel particles; and irradiating the gel particles with light to decompose the photoinitiator, simultaneously with, or after, the step of comminuting. The gel particles may be irradiated with UV light while they are being dried in a fluid-bed dryer.
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公开(公告)号：EP1068162B1
公开(公告)日：2003-07-23
申请号：EP99909717.3
申请日：1999-03-02
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： NAGARAJ, D., R. , RYLES, Roderick, G. , ROTHENBERG, Alan, S.
CPC classification number: B03D3/06 , B03B1/04 , C01P2006/60 , C01P2006/80 , C09C1/42
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公开(公告)号：EP1226183A1
公开(公告)日：2002-07-31
申请号：EP00961960.2
申请日：2000-09-18
Applicant: CYTEC TECHNOLOGY CORP.
Inventor： CYWAR, Douglas, A. , RYLES, Roderick, G. , HOLDSWORTH, Melvyn
IPC: C08F6/00
Abstract: Methods of preparing an acrylic polymer according to the present invention comprise the steps of: forming a gelled polymer by polymerizing a mixture containing an acrylic monomer and a photoinitiator; comminuting the gelled polymer to produce gel particles; and irradiating the gel particles with light to decompose the photoinitiator, simultaneously with, or after, the step of comminuting. The gel particles may be irradiated with UV light while they are being dried in a fluid-bed dryer.
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公开(公告)号：EP0906358A2
公开(公告)日：1999-04-07
申请号：EP97931055.0
申请日：1997-06-05
Applicant: Cytec Technology Corp.
Inventor： DAVIES, William, Bloor , HEALY, John, Edward , MILLER, Gary, Kaui, Lani , KOZAKIEWICZ, Joseph, J. , RYLES, Roderick, G.
CPC classification number: C08J3/122 , B01D1/14 , C02F1/56 , C08J11/02 , C08J2300/14 , Y10S210/928 , Y10S524/904 , Y10S525/934
Abstract: Processes for spray-drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and microemulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using spray-dried polymer particles and agglomerates in water-treating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.
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