WO2006028499A3 - Methods of processing lignocellulosic pulp with cavitation - Google Patents

Methods of processing lignocellulosic pulp with cavitation Download PDF

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Publication number
WO2006028499A3
WO2006028499A3 PCT/US2005/005472 US2005005472W WO2006028499A3 WO 2006028499 A3 WO2006028499 A3 WO 2006028499A3 US 2005005472 W US2005005472 W US 2005005472W WO 2006028499 A3 WO2006028499 A3 WO 2006028499A3
Authority
WO
WIPO (PCT)
Prior art keywords
cavitation
methods
pulp
lignocellulosic pulp
bleaching
Prior art date
Application number
PCT/US2005/005472
Other languages
French (fr)
Other versions
WO2006028499A2 (en
Inventor
Bijan Kazem
Kelly Hudson
Original Assignee
Hydro Dynamics Inc
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
Priority claimed from US10/932,604 external-priority patent/US20050067122A1/en
Application filed by Hydro Dynamics Inc filed Critical Hydro Dynamics Inc
Publication of WO2006028499A2 publication Critical patent/WO2006028499A2/en
Publication of WO2006028499A3 publication Critical patent/WO2006028499A3/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2722—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with ribs, ridges or grooves on one surface

Abstract

Methods of treating lignocellulosic pulp with cavitation are disclosed. The methods include delignifying a slurry comprising lignocellulos pulp in the presence of cavitation and bleaching a delignified pulp in the presence of cavitation. Delignification can be done by contacting a lignocellulosic pulp slurry with an oxidizing agent in a cavitation zone. Bleaching can be carried out by contacting a delignified pulp slurry with a bleaching agent in a cavitation zone.
PCT/US2005/005472 2004-09-02 2005-02-22 Methods of processing lignocellulosic pulp with cavitation WO2006028499A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/932,604 2004-09-02
US10/932,604 US20050067122A1 (en) 2000-05-17 2004-09-02 Methods of processing lignocellulosic pulp with cavitation
PCT/US2004/032385 WO2006028469A1 (en) 2004-09-02 2004-10-01 Methods of processing lignocellulosic pulp with cavitation
USPCT/US04/32385 2004-10-01

Publications (2)

Publication Number Publication Date
WO2006028499A2 WO2006028499A2 (en) 2006-03-16
WO2006028499A3 true WO2006028499A3 (en) 2006-06-22

Family

ID=34960905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/005472 WO2006028499A2 (en) 2004-09-02 2005-02-22 Methods of processing lignocellulosic pulp with cavitation

Country Status (1)

Country Link
WO (1) WO2006028499A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUP0800348A2 (en) * 2008-05-30 2012-12-28 Immobile Worldwide Kft Heating device, heater with fluid circulating and method for increasing and controlling of heat generation of heater
CN104911940A (en) * 2015-07-13 2015-09-16 广西大学 Method for assisting delignification of wheat straw through utilizing cavitation effect

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834982A (en) * 1972-09-01 1974-09-10 R Solonitsyn Method and apparatus utilizing the effects of cavitation in the treatment of fibrous suspensions
US5188090A (en) * 1991-04-08 1993-02-23 Hydro Dynamics, Inc. Apparatus for heating fluids
US5494748A (en) * 1989-04-17 1996-02-27 Ecco Gleittechnik Gmbh Reinforcement fibers and/or process fibers based on plant fibers
US5685342A (en) * 1995-03-08 1997-11-11 Kvaerner Pulping Technologies, Ab Apparatus for mixing a first fluid into a second fluid
US5964983A (en) * 1995-02-08 1999-10-12 General Sucriere Microfibrillated cellulose and method for preparing a microfibrillated cellulose
US20020077373A1 (en) * 2000-05-17 2002-06-20 Hydro Dynamics, Inc Highly efficient method of mixing dissimilar fluids using mechanically induced cavitation
WO2004022838A1 (en) * 2002-09-06 2004-03-18 Simonov, Sergii Vadimovich Method of the electric pulse treatment of fibrous materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834982A (en) * 1972-09-01 1974-09-10 R Solonitsyn Method and apparatus utilizing the effects of cavitation in the treatment of fibrous suspensions
US5494748A (en) * 1989-04-17 1996-02-27 Ecco Gleittechnik Gmbh Reinforcement fibers and/or process fibers based on plant fibers
US5188090A (en) * 1991-04-08 1993-02-23 Hydro Dynamics, Inc. Apparatus for heating fluids
US5964983A (en) * 1995-02-08 1999-10-12 General Sucriere Microfibrillated cellulose and method for preparing a microfibrillated cellulose
US5685342A (en) * 1995-03-08 1997-11-11 Kvaerner Pulping Technologies, Ab Apparatus for mixing a first fluid into a second fluid
US20020077373A1 (en) * 2000-05-17 2002-06-20 Hydro Dynamics, Inc Highly efficient method of mixing dissimilar fluids using mechanically induced cavitation
WO2004022838A1 (en) * 2002-09-06 2004-03-18 Simonov, Sergii Vadimovich Method of the electric pulse treatment of fibrous materials

Also Published As

Publication number Publication date
WO2006028499A2 (en) 2006-03-16

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