公开(公告)号：WO2010044986A1

公开(公告)日：2010-04-22

申请号：PCT/US2009/057828

申请日：2009-09-22

Applicant: CYTEC TECHNOLOGY CORP. ,  DAVIS, Matthew, J. ,  DAI, Qi ,  CHEN, Haunn-Lin, Tony ,  TAYLOR, Matthew ,  LEWELLYN, Morris

Inventor： DAVIS, Matthew, J. ,  DAI, Qi ,  CHEN, Haunn-Lin, Tony ,  TAYLOR, Matthew ,  LEWELLYN, Morris

IPC: C01F7/06 ,  B01D21/01 ,  C02F1/54

CPC classification number: C01F7/0653 ,  C02F1/545 ,  C02F1/56 ,  C02F2103/10

Abstract: The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon- containing polymers.

Abstract translation: 通过使流与含硅聚合物接触，在消化铝土矿以生产氧化铝的方法中的工艺流的悬浮固体含量被降低。

公开(公告)号：WO2009085514A3

公开(公告)日：2009-07-09

申请号：PCT/US2008/084817

申请日：2008-11-26

Applicant: CYTEC TECHNOLOGY CORP. ,  DAI, Qi ,  FOSTER, Terence

Inventor： DAI, Qi ,  FOSTER, Terence

IPC: C01F7/06

Abstract: A method to inhibit autoprecipitation of aluminum containing compounds in a Bayer process liquor includes adding an effective amount of a polysaccharide to the Bayer process liquor. Polysaccharides which are added in accordance with the present method selected from gum arahic, tamarind gum, gum ghatti and mixtures thereof. Effective addition sites for the autoprecipitation inhibitor are prior to filtering clarified process liquor and subsequent to condensation of caustic soda from spent process liquor.

公开(公告)号：WO2008130766A1

公开(公告)日：2008-10-30

申请号：PCT/US2008/057676

申请日：2008-03-20

Applicant: CYTEC TECHNOLOGY CORP. ,  DAI, Qi ,  SPITZER, Donald, Paul ,  HEITNER, Howard, I. ,  CHEN, H-L, Tony

Inventor： DAI, Qi ,  SPITZER, Donald, Paul ,  HEITNER, Howard, I. ,  CHEN, H-L, Tony

IPC: C01F7/06 ,  B01D21/01

CPC classification number: C02F1/56 ,  B03D3/06 ,  C01F7/0653 ,  C02F1/52 ,  C02F1/545 ,  C08F216/18 ,  C08F220/06 ,  C08F220/56 ,  C08F222/06 ,  C08F230/08 ,  C08G77/00 ,  C08G77/80

Abstract: The suspended solids content of a Bayer process stream is reduced by contacting the stream with silicon-containing polymers

Abstract translation: 通过使该流与含硅聚合物接触来降低拜耳法工艺流的悬浮固体含量

公开(公告)号：EP3486216A1

公开(公告)日：2019-05-22

申请号：EP18208569.6

申请日：2008-03-20

Applicant: Cytec Technology Corp.

Inventor： DAI, Qi ,  SPITZER, Donald, Paul ,  HEITNER, Howard, I. ,  CHEN, H-L, Tony

IPC: C01F7/06 ,  B01D21/01 ,  C08G73/02

Abstract: The suspended solids content of a Bayer process stream is reduced by contacting the stream with silicon-containing polymers.

公开(公告)号：EP2139812A1

公开(公告)日：2010-01-06

申请号：EP08732581.7

申请日：2008-03-20

Applicant: CYTEC TECHNOLOGY CORP.

Inventor： DAI, Qi ,  SPITZER, Donald, Paul ,  HEITNER, Howard, I. ,  CHEN, H-L, Tony

IPC: C01F7/06 ,  B01D21/01

CPC classification number: C02F1/56 ,  B03D3/06 ,  C01F7/0653 ,  C02F1/52 ,  C02F1/545 ,  C08F216/18 ,  C08F220/06 ,  C08F220/56 ,  C08F222/06 ,  C08F230/08 ,  C08G77/00 ,  C08G77/80

Abstract: The suspended solids content of a Bayer process stream is reduced by contacting the stream with silicon-containing polymers.

Abstract translation: 拜耳工艺物流中的悬浮固体含量是通过接触，含硅氧烷的聚合物的流减小。

公开(公告)号：EP2139812B1

公开(公告)日：2019-01-02

申请号：EP08732581.7

申请日：2008-03-20

Applicant: CYTEC TECHNOLOGY CORP.

Inventor： DAI, Qi ,  SPITZER, Donald, Paul ,  HEITNER, Howard, I. ,  CHEN, H-L, Tony

IPC: C01F7/06 ,  B03D3/06

公开(公告)号：EP0988401A2

公开(公告)日：2000-03-29

申请号：EP98925202.8

申请日：1998-06-01

Applicant: CYTEC TECHNOLOGY CORP.

Inventor： COVILLE, Michael, W. ,  DAI, Qi

IPC: C13D3/00

CPC classification number: C13B20/126

Abstract: Methods for the purification of sugar solutions using hydrolyzed polyacrylamides as flocculants are herein described. The hydrolyzed polyacrylamides are prepared from emulsion or microemulson polymerization of acrylamide monomer, and subsequently hydrolyzed to a degree of hydrolysis of about 10 to about 50 mole %. The hydrolyzed polyacrylamides have a molecular weight of at least about 10,000,000.