WO2010010570A8 - A process for forming a rice husk ash composition - Google Patents

A process for forming a rice husk ash composition Download PDF

Info

Publication number
WO2010010570A8
WO2010010570A8 PCT/IN2008/000812 IN2008000812W WO2010010570A8 WO 2010010570 A8 WO2010010570 A8 WO 2010010570A8 IN 2008000812 W IN2008000812 W IN 2008000812W WO 2010010570 A8 WO2010010570 A8 WO 2010010570A8
Authority
WO
WIPO (PCT)
Prior art keywords
rice husk
husk ash
forming
ash composition
silver
Prior art date
Application number
PCT/IN2008/000812
Other languages
French (fr)
Other versions
WO2010010570A1 (en
Inventor
Debabrata Rautaray
Murali Sastry
Original Assignee
Tata Chemicals Ltd.
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 Tata Chemicals Ltd. filed Critical Tata Chemicals Ltd.
Priority to AP2011005589A priority Critical patent/AP2011005589A0/en
Publication of WO2010010570A1 publication Critical patent/WO2010010570A1/en
Publication of WO2010010570A8 publication Critical patent/WO2010010570A8/en
Priority to ZA2011/01304A priority patent/ZA201101304B/en

Links

Classifications

    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B01J20/28007—Sorbent size or size distribution, e.g. particle size with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3291—Characterised by the shape of the carrier, the coating or the obtained coated product
    • B01J20/3295—Coatings made of particles, nanoparticles, fibers, nanofibers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/485—Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Processing Of Solid Wastes (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention relates to a process comprising binding silver ions to rice husk ash by adding to the rice husk ash a silver precursor, and reducing the silver ions bonded to the rice husk ash by a reducing agent to obtain rice husk ash with bonded silver nanoparticles.
PCT/IN2008/000812 2008-07-24 2008-12-04 A process for forming a rice husk ash composition WO2010010570A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AP2011005589A AP2011005589A0 (en) 2008-07-24 2008-12-04 A process for forming a rice husk ash composition.
ZA2011/01304A ZA201101304B (en) 2008-07-24 2011-02-18 A process for forming a rice husk ash composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1570/MUM/2008 2008-07-24
IN1570MU2008 2008-07-24

Publications (2)

Publication Number Publication Date
WO2010010570A1 WO2010010570A1 (en) 2010-01-28
WO2010010570A8 true WO2010010570A8 (en) 2010-04-15

Family

ID=40750852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000812 WO2010010570A1 (en) 2008-07-24 2008-12-04 A process for forming a rice husk ash composition

Country Status (3)

Country Link
AP (1) AP2011005589A0 (en)
WO (1) WO2010010570A1 (en)
ZA (1) ZA201101304B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
CN109529768A (en) * 2018-12-21 2019-03-29 胡平 A kind of absorption desulfurizing agent and its preparation method and application

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073252A1 (en) * 2010-11-29 2012-06-07 Tata Chemicals Limited Antimicrobial compositions based on rice hull ash
US10064793B2 (en) 2012-09-28 2018-09-04 Stelo Technologies Methods of making silver nanoparticles and their applications
WO2014188443A2 (en) * 2013-04-12 2014-11-27 Tata Chemicals Limited A water purification composition
MX370462B (en) 2014-03-07 2019-12-13 Secure Natural Resources Llc Cerium (iv) oxide with exceptional arsenic removal properties.
CN110253033A (en) * 2019-07-30 2019-09-20 三明学院 A method of quickly preparing triangular silver nanosheet at room temperature

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645605A (en) * 1984-07-13 1987-02-24 Agritec, Inc. Filtration with biogenetic silica
JPH04122452A (en) * 1990-09-11 1992-04-22 Hidefumi Hirai Metal particle and/or metal compound particle carrier and production thereof
US6548264B1 (en) * 2000-05-17 2003-04-15 University Of Florida Coated nanoparticles
WO2006049378A1 (en) * 2004-11-08 2006-05-11 Bio Dreams Co. Ltd. Nano-silicasilver and method for the preparation thereof
KR100733085B1 (en) * 2005-07-29 2007-06-28 재단법인서울대학교산학협력재단 Surface enhanced raman scattering nano-tagging particle and method for preparing thereof
CN100482385C (en) * 2007-06-15 2009-04-29 北京化工大学 Method for preparing silver/silicon dixoide nucleocapsid structure nano particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
CN109529768A (en) * 2018-12-21 2019-03-29 胡平 A kind of absorption desulfurizing agent and its preparation method and application

Also Published As

Publication number Publication date
WO2010010570A1 (en) 2010-01-28
AP2011005589A0 (en) 2011-02-28
ZA201101304B (en) 2011-10-26

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