BR112015022243A2 - dihidroxipropil celulose etilsulfonada reticulada - Google Patents
dihidroxipropil celulose etilsulfonada reticuladaInfo
- Publication number
- BR112015022243A2 BR112015022243A2 BR112015022243A BR112015022243A BR112015022243A2 BR 112015022243 A2 BR112015022243 A2 BR 112015022243A2 BR 112015022243 A BR112015022243 A BR 112015022243A BR 112015022243 A BR112015022243 A BR 112015022243A BR 112015022243 A2 BR112015022243 A2 BR 112015022243A2
- Authority
- BR
- Brazil
- Prior art keywords
- cross
- linked
- ethylsulfonated
- cellulose
- polysaccharides
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/062—Digestion
- C01F7/0633—Digestion characterised by the use of additives
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/0646—Separation of the insoluble residue, e.g. of red mud
- C01F7/0653—Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
- C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
- C01F7/145—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process characterised by the use of a crystal growth modifying agent other than aluminium hydroxide seed
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/005—Crosslinking of cellulose derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0009—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
- C08B37/0021—Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
- C08B5/14—Cellulose sulfate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/16—Esters of inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/02—Dextran; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Nutrition Science (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
resumo dihidroxipropil celulose etilsulfonada reticulada a invenção fornece métodos e composições para melhorar a produção de hidrato de alumina. a invenção envolve a adição de um ou mais polissacarídeos etilsulfonados reticulados para licor ou pasta no circuito do fluido de processo de produção. os um ou mais polissacarídeos incluem dextrano reticulado ou dihidroxipropil celulose reticulada. os vários polissacarídeos podem transmitir uma série de vantagens, incluindo pelo menos algumas de: maior eficácia de floculação, aumento da dose máxima eficaz, taxa de sedimentação mais rápida. o processo de produção pode ser um processo de bayer.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/798,761 US9102995B2 (en) | 2010-08-09 | 2013-03-13 | Cross-linked ethylsulfonated dihydroxypropyl cellulose |
US13/798,761 | 2013-03-13 | ||
PCT/US2014/015538 WO2014158381A1 (en) | 2013-03-13 | 2014-02-10 | Cross-linked ethylsulfonated dihydroxypropyl cellulose |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112015022243A2 true BR112015022243A2 (pt) | 2017-07-18 |
BR112015022243B1 BR112015022243B1 (pt) | 2022-02-15 |
Family
ID=51625002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015022243-9A BR112015022243B1 (pt) | 2013-03-13 | 2014-02-10 | Método para produzir alumina utilizando um processo bayer |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2016517385A (pt) |
CN (1) | CN105073642B (pt) |
AU (1) | AU2014242325B2 (pt) |
BR (1) | BR112015022243B1 (pt) |
CA (1) | CA2904522C (pt) |
WO (1) | WO2014158381A1 (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106279453B (zh) * | 2015-05-28 | 2019-12-10 | 易媛 | 交联的高分子化合物及其制备方法、水凝胶、水基压裂液和用途 |
US10427950B2 (en) | 2015-12-04 | 2019-10-01 | Ecolab Usa Inc. | Recovery of mining processing product using boronic acid-containing polymers |
US20190381428A1 (en) * | 2017-02-07 | 2019-12-19 | Kemira Oyj | Selective Polysaccharide Flocculants for Bauxite Ore Beneficiation |
KR20220167888A (ko) * | 2021-06-15 | 2022-12-22 | 현대자동차주식회사 | 비이온성 계면활성제를 이용한 나노 셀룰로오스의 제조 방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737352A (en) * | 1987-04-09 | 1988-04-12 | Nalco Chemical Company | Use of surfactants in alumina precipitation in the bayer process |
DE3742104A1 (de) * | 1987-12-11 | 1989-06-22 | Wolff Walsrode Ag | Sulfoethylcellulose mit hervorragender loesungsqualitaet und verfahren zu ihrer herstellung |
DE4113892A1 (de) * | 1991-04-27 | 1992-10-29 | Wolff Walsrode Ag | Wasserloesliche sulfoethylcelluloseether mit sehr guter loesungsqualitaet und verfahren zu ihrer herstellung |
US5254403A (en) * | 1992-04-23 | 1993-10-19 | Xerox Corporation | Coated recording sheets |
US5601726A (en) * | 1994-06-06 | 1997-02-11 | Cytec Technology Corp. | Hydroxameted polymers in the bayer process to reduce solids |
US5478477A (en) * | 1994-11-04 | 1995-12-26 | Nalco Chemical Company | Use of alginates to treat bauxite red mud |
AUPP531498A0 (en) * | 1998-08-17 | 1998-09-10 | Comalco Aluminium Limited | Feed processing for improved alumina process performance |
US7138472B2 (en) * | 2001-01-29 | 2006-11-21 | Nalco Company | High molecular weight polymers containing pendant salicylic acid groups for clarifying bayer process liquors |
CN1594094A (zh) * | 2004-06-25 | 2005-03-16 | 中国铝业股份有限公司 | 一种拜耳法种分生产砂状氧化铝的方法 |
CN1772620B (zh) * | 2004-11-10 | 2010-12-22 | 赵中伟 | 对称拜耳法分解铝土矿的工艺 |
CN100427396C (zh) * | 2006-09-05 | 2008-10-22 | 中国铝业股份有限公司 | 一种拜耳法种分生产氧化铝的方法 |
CN101264906B (zh) * | 2008-04-25 | 2010-06-16 | 河南未来铝业(集团)有限公司 | 一种拜耳法生产氢氧化铝或氧化铝的方法 |
US8298508B2 (en) * | 2010-08-09 | 2012-10-30 | Nalco Company | Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides |
US8252266B2 (en) * | 2010-08-09 | 2012-08-28 | Nalco Company | Recovery of alumina trihydrate during the bayer process using scleroglucan |
-
2014
- 2014-02-10 AU AU2014242325A patent/AU2014242325B2/en active Active
- 2014-02-10 CA CA2904522A patent/CA2904522C/en active Active
- 2014-02-10 BR BR112015022243-9A patent/BR112015022243B1/pt active IP Right Grant
- 2014-02-10 WO PCT/US2014/015538 patent/WO2014158381A1/en active Application Filing
- 2014-02-10 JP JP2016500226A patent/JP2016517385A/ja active Pending
- 2014-02-10 CN CN201480013653.1A patent/CN105073642B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
AU2014242325A1 (en) | 2015-11-05 |
JP2016517385A (ja) | 2016-06-16 |
CA2904522A1 (en) | 2014-10-02 |
CN105073642B (zh) | 2017-06-20 |
BR112015022243B1 (pt) | 2022-02-15 |
WO2014158381A1 (en) | 2014-10-02 |
CA2904522C (en) | 2020-06-30 |
CN105073642A (zh) | 2015-11-18 |
AU2014242325B2 (en) | 2016-12-15 |
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Legal Events
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B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/02/2014, OBSERVADAS AS CONDICOES LEGAIS. |