LT2014048A - Modified starch flocculant and method of producing thereof - Google Patents

Modified starch flocculant and method of producing thereof

Info

Publication number
LT2014048A
LT2014048A LT2014048A LT2014048A LT2014048A LT 2014048 A LT2014048 A LT 2014048A LT 2014048 A LT2014048 A LT 2014048A LT 2014048 A LT2014048 A LT 2014048A LT 2014048 A LT2014048 A LT 2014048A
Authority
LT
Lithuania
Prior art keywords
flocculant
starch
cross
modified starch
flocculation
Prior art date
Application number
LT2014048A
Other languages
Lithuanian (lt)
Other versions
LT6229B (en
Inventor
Algirdas ŽEMAITAITIS
Joana Bendoraitienė
Edita LEKNIUTĖ
Original Assignee
Kauno technologijos universitetas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kauno technologijos universitetas filed Critical Kauno technologijos universitetas
Priority to LT2014048A priority Critical patent/LT6229B/en
Priority to EP14758183.9A priority patent/EP3116913A1/en
Priority to PCT/LT2014/050001 priority patent/WO2015137791A1/en
Publication of LT2014048A publication Critical patent/LT2014048A/en
Publication of LT6229B publication Critical patent/LT6229B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/003—Crosslinking of starch
    • C08B31/006—Crosslinking of derivatives of starch
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/08—Ethers
    • C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
    • C08B31/125—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch having a substituent containing at least one nitrogen atom, e.g. cationic starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/04—Starch derivatives, e.g. crosslinked derivatives
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention is designed for the efficient cross-linked cationic starch flocculant of the broad flocculation window, which during the flocculation of suspensions is able to bind soluble anionic pollutants, and for method of production of such flocculant. Cross-linked cationic starch is obtainable by cross-linking and cationization of starch in one-stage or two-stage process. The flocculant is obtained by dispergation of microgranules of cross-linked cationic starch with use of shear forces in water or aqueous mixture with multifunctional alcohols after swelling of modified starch in the dispersion medium up to the balance state. A degree of substitution of the discrete submicro-, nanoparticles of the modified starch flocculant according to cationic groups is from 0.15 to 0.28, accessibility of its cationic groups for polyanions is between 15 and 40 percent.
LT2014048A 2014-03-10 2014-03-10 Modified starch flocculant and method of producing thereof LT6229B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
LT2014048A LT6229B (en) 2014-03-10 2014-03-10 Modified starch flocculant and method of producing thereof
EP14758183.9A EP3116913A1 (en) 2014-03-10 2014-07-15 Modified starch flocculant and method of producing thereof
PCT/LT2014/050001 WO2015137791A1 (en) 2014-03-10 2014-07-15 Modified starch flocculant and method of producing thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LT2014048A LT6229B (en) 2014-03-10 2014-03-10 Modified starch flocculant and method of producing thereof

Publications (2)

Publication Number Publication Date
LT2014048A true LT2014048A (en) 2015-09-25
LT6229B LT6229B (en) 2015-10-26

Family

ID=51453793

Family Applications (1)

Application Number Title Priority Date Filing Date
LT2014048A LT6229B (en) 2014-03-10 2014-03-10 Modified starch flocculant and method of producing thereof

Country Status (3)

Country Link
EP (1) EP3116913A1 (en)
LT (1) LT6229B (en)
WO (1) WO2015137791A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105731560A (en) * 2016-02-29 2016-07-06 济南大学 Composite light fiber water treatment conditioner prepared from wheat bran
CN105731561A (en) * 2016-02-29 2016-07-06 济南大学 Light fiber water treatment conditioner prepared from palm kernel cakes
CN105753077A (en) * 2016-02-29 2016-07-13 济南大学 Biomass coupling water treatment conditioner prepared from bean pulp
CN108996649A (en) * 2018-07-27 2018-12-14 云南铑熠金属材料有限公司 A kind of print rushes version waste water green flocculant and preparation method thereof with development
CN110372805B (en) * 2019-07-31 2021-07-06 石河子大学 Preparation method of low-residual flocculant in wastewater and wastewater recycling method
CN110743286B (en) * 2019-11-04 2024-04-19 中国华电科工集团有限公司 Chemical agglomeration liquid, device, preparation method and application
CN113121711B (en) * 2019-12-31 2022-07-08 中国石油化工股份有限公司 Preparation method of high-cation-degree starch flocculant
CN112300295A (en) * 2020-06-12 2021-02-02 石河子大学 Preparation method and use method of salt sensitive flocculant
CN114685028B (en) * 2022-03-29 2024-05-03 广州中宜生态环境科技有限公司 Silt dehydrating agent suitable for geotechnical pipe bag dehydrating technology and preparation method thereof
WO2024062159A1 (en) * 2022-09-20 2024-03-28 Kemira Oyj Method for liquid-solid separation
CN116675870B (en) * 2023-06-05 2023-11-10 南京大学 Covalent bond modified starch-clay hybrid flocculant and preparation method and application thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579944A (en) 1982-07-19 1986-04-01 Grain Processing Corporation Derivatization of starch
FR2557166B1 (en) 1983-10-27 1986-07-04 Roquette Freres CATIONIC MASS ADDITIVE FOR PAPERMAKING COMPRISING A MIXTURE OF AT LEAST ONE CEREAL STARCH AND AT LEAST ONE CATIONIC TUBER STARCH AND ITS MANUFACTURING METHOD
US5368690A (en) 1992-12-23 1994-11-29 National Starch And Chemical Investment Holding Corporation Method of papermaking using crosslinked cationic/amphoteric starches
AUPO017196A0 (en) 1996-05-30 1996-06-27 George Weston Foods Limited Novel wet end processing aid
GB9914275D0 (en) 1999-06-18 1999-08-18 Cerestar Holding Bv Cationic cross-bonded starch with stable and tailor-made viscosity
EP1176254A1 (en) 2000-07-24 2002-01-30 The Dow Chemical Company Use of dispersions of crosslinked cationic starch in papermaking
BR0113168A (en) 2000-08-10 2004-06-22 Cargill Inc Use of starch compositions in papermaking
NO317844B1 (en) 2002-11-04 2004-12-20 Yara Int Asa A product for treating water and wastewater and a process for making said product
DE10308753A1 (en) 2003-02-28 2004-09-09 Bayer Ag Cationic starch graft copolymers and new process for the production of cationic starch graft copolymers
BRPI0512231A (en) 2004-06-16 2008-02-19 Cargill Inc non-waxy, crosslinked, cationic starch products, method for making starch products and use in paper products
FR2872063B1 (en) * 2004-06-29 2009-02-27 Rhodia Cons Spec Ltd USE OF POSSIBLY MODIFIED AND POSSIBLY INSOLUBLE STARCH FOR THE REMOVAL OF NATURAL ORGANIC MATERIALS IN LIQUIDS
DE102005009808B4 (en) * 2005-03-03 2007-03-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for separating suspended solids from aqueous systems with colloidal flocculants
CN101700922A (en) 2009-11-20 2010-05-05 大连理工大学 cationic starch flocculant
SI2649124T1 (en) 2010-12-10 2017-04-26 Cargill Inc. Improved starch composition for use in paper manufacture
CN102796202A (en) 2011-05-26 2012-11-28 金东纸业（江苏）股份有限公司 Composite cationic starch and preparation method thereof, and method for making paper by using starch
LT5926B (en) 2012-06-13 2013-04-25 Kauno technologijos universitetas Cationic starch flocculant and the method of production thereof
CN102898666B (en) 2012-11-07 2014-01-08 桂林理工大学 Method for preparing high-degree double-crosslinked amphoteric grafted tapioca starch resin

Also Published As

Publication number Publication date
WO2015137791A1 (en) 2015-09-17
LT6229B (en) 2015-10-26
EP3116913A1 (en) 2017-01-18

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BB1A Patent application published

Effective date: 20150925

FG9A Patent granted

Effective date: 20151026

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Effective date: 20230310