CN1723316A - Filler-fiber composite - Google Patents

Filler-fiber composite Download PDF

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Publication number
CN1723316A
CN1723316A CNA2003801055251A CN200380105525A CN1723316A CN 1723316 A CN1723316 A CN 1723316A CN A2003801055251 A CNA2003801055251 A CN A2003801055251A CN 200380105525 A CN200380105525 A CN 200380105525A CN 1723316 A CN1723316 A CN 1723316A
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CN
China
Prior art keywords
filler
fiber composite
fiber
calcium carbonate
white lime
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Pending
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CNA2003801055251A
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Chinese (zh)
Inventor
G·L·休斯
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Specialty Minerals Michigan Inc
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Specialty Minerals Michigan Inc
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Publication of CN1723316A publication Critical patent/CN1723316A/en
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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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H3/00—Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body
    • 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
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
    • 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
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
    • C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/70—Inorganic compounds forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Paper (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The present invention relates to a filler-fiber composite, a process for its production, the use of such in the manufacture of paper or paperboard products and to paper produced therefrom. More particularly the invention relates to a filler-fiber composite in which the morphology and particle size of the mineral filler are established prior to the development of the bond to the fiber. Even more particularly, the present invention relates to a PCC filler-fiber composite, wherein the desired optical and physical properties of the paper produced therefrom are realized.

Description

Filler-fiber composite
Invention field
The present invention relates to filler-fiber composite, its production method, its purposes in producing paper or board product, and relate to the paper of producing thus.Particularly, the present invention relates to a kind of form of wherein inorganic filler and particle size in itself and the filler-fiber composite that is determined before fiber combines.More specifically, the present invention relates to a kind of PCC filler-fiber composite, wherein the desirable optics and the physical property of the paper of producing thus are achieved.
Background technology
With granulated filler such as calcium carbonate, talcum and clay filled to the fiber to be used for producing paper subsequently and paper product always is a difficult problem.Cheng Gong many methods have been used to address this problem to a certain extent.In order to ensure being retained in the network of fibers with network of fibers reservation filler or filler, used following technology that filler is retained in the fiber so that use in paper subsequently: to use retention agent, on fiber, directly precipitate, use and a kind of filler directly is attached to method on the fiber surface, blended fiber and filler, do not precipitating in the dry pulp, use the method for fiberfill fibers cellulose fiber, high shear mixing, fibrous material and calcium carbonate in airtight pressurizing vessel with carbon dioxide reaction, capture filler by mechanical bond, use the polymer of lotus positive electricity, use the paper pulp fiber chamber of having filled calcium carbonate.Be used for not only costliness but also invalid of most methods that fiber keeps.
Thereby needed is a kind ofly not only to have kept filler effectively and for the use of paper manufacturers but also inexpensive filler fibre composite and production method thereof.
Thereby, the objective of the invention is to produce a kind of filler/fiber composite.Another object of the present invention provides a kind of method of production filler/fiber composite.And another object of the present invention provides the filler/fiber composite of the such physical property of a kind of maintenance such as TENSILE STRENGTH, breaking length and internal bond.A further object of the present invention is to produce a kind of filler/fiber composite that keeps optical property such as ISO opacity and pigment scatter.And another purpose of the present invention provides a kind of filler/fiber composite that is used in particular in paper and the board product.
Correlation technique
U.S. Patent No. 6,156,118 instructed with pearl filler be of a size of P50 or thinner wool noil fibril (fibril) and mix.
U.S. Patent No. 5,096,539 have instructed and have utilized the not precipitation on the spot of the inorganic filler of dry pulp.
U.S. Patent No. 5,223,090 method of having instructed a kind of high shear mixing of during carbon dioxide reaction, utilizing chip (crumb) paper pulp to come the fiberfill fibers cellulose fiber.
U.S. Patent No. 5,665,205 instructed a kind of in the contact zone of reactor with fiber slush pulp and basic salt slurry in conjunction with and immediately this slurry is contacted with carbon dioxide and mixes, filler is deposited to the method on the secondary paper pulp fiber.
U.S. Patent No. 5,679,220 have instructed a kind of continuation method, be used for shear action being applied under the condition of gas phase, in flow stream in paper fibre the autochthonous deposit filler so that finish the conversion of calcium hydroxide fast to calcium carbonate.
U.S. Patent No. 5,122,230 instructed a kind of utilization basically the in situ precipitation of water-fast inorganic substances come method to the hydrophilic fibre modification.
U.S. Patent No. 5,733,461 have instructed a kind of method that reclaims and utilize the fiber fines that exists in the waste water stream that produces in paper-making process.
U.S. Patent No. 5,731,080 has instructed in situ precipitation, and wherein most of calcium carbonate is captured microfiber by reliable or unreliable mechanical bond, and does not use adhesive or retention agent.
U.S. Patent No. 5,928,470 have instructed a kind of method that is used to prepare the cellulose pulp of metal oxide or metal hydroxides modification.
U.S. Patent No. 6,235,150 have instructed that a kind of to be used to produce with particle size be the method in the calcium carbonate-filled paper pulp fiber chamber of 0.4-1.5 micron.
Guarantee that the problem that packing material (as calcium carbonate, grinding calcium carbonate, clay and talcum) is retained in the fiber that finally is used in the paper carried out a lot of checkings.But filler fibre composite and production method thereof that the form that does not have a kind of related art to disclose a kind of wherein filler was determined in advance before the introducing fibril do not have to disclose its application in paper or paper product yet.
Summary of the invention
The present invention relates to a kind of filler-fiber composite, comprise that the white lime (slake) that will contain crystal seed is provided to first order reactor, in this first order reactor, in the presence of carbon dioxide, make this white lime that contains crystal seed reaction, produce the calcium hydroxide calcium carbonate slurry of part conversion for the first time, in the reactor of the second level, in the presence of carbon dioxide, make the calcium hydroxide calcium carbonate slurry reaction that this first time, part transformed, produce the calcium hydroxide calcium carbonate slurry of part conversion for the second time, and in third level reactor, in the presence of carbon dioxide and fibril, make the calcium hydroxide calcium carbonate slurry reaction that this second time, part transformed, produce filler-fiber composite.
In one aspect of the method, the present invention relates to a kind of filler-fiber composite, comprise and provide the white lime that contains crystal seed to first order reactor, in first order reactor, in the presence of carbon dioxide, make this white lime that contains crystal seed reaction, produce the calcium hydroxide calcium carbonate slurry of part conversion for the first time, and the calcium carbonate slurry of part conversion is for the first time reacted, produce filler-fiber composite.
In a further aspect, the present invention relates to a kind of filler-fiber composite, comprise and provide the white lime that contains citric acid to first order reactor, in first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce the calcium hydroxide calcium carbonate slurry of part conversion for the first time, in the reactor of the second level, in the presence of carbon dioxide, make the calcium hydroxide calcium carbonate slurry reaction of part conversion for the first time, produce the calcium hydroxide calcium carbonate slurry of part conversion for the second time, and in third level reactor, in the presence of carbon dioxide and fibril, make the calcium hydroxide calcium carbonate slurry reaction of part conversion for the second time, produce filler-fiber composite.
In aspect another, the present invention relates to a kind of filler-fiber composite, comprise and provide the white lime that contains citric acid to first order reactor, in first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce the calcium hydroxide calcium carbonate slurry of part conversion for the first time, first part that gets calcium hydroxide calcium carbonate slurry that this part transforms is added fibril and it is reacted in the presence of carbon dioxide in the reactor of the second level, produce calcium carbonate/former fiber composite material, to be used as tailing (heel), and second part of getting calcium hydroxide calcium carbonate slurry that this part transforms add fibril and surfactant, and at CO 2There is reaction down, produces the Ca (OH) that the second time, part transformed 2/ CaCO 3/ fibril material, and make the Ca (OH) that partly transforms for the second time 2/ CaCO 3/ fibril material is at CO 2Exist down and in third level reactor, react, produce filler-fiber composite.
In a further aspect, the present invention relates to a kind of filler-fiber composite, comprise and provide the white lime that contains citric acid to first order reactor, in first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce the calcium hydroxide calcium carbonate slurry of part conversion for the first time, first part that gets calcium hydroxide calcium carbonate slurry that this part transforms is added fibril and it is reacted in the presence of carbon dioxide in the reactor of the second level, produce calcium carbonate/former fiber composite material, to be used as tailing, and second part of getting calcium hydroxide calcium carbonate slurry that this part transforms add fibril and polyacrylamide, and at CO 2There is reaction down, produces the Ca (OH) that the second time, part transformed 2/ CaCO 3/ fibril material, and make this Ca (OH) that second time, part transformed 2/ CaCO 3/ fibril material is at CO 2Exist down and in third level reactor, react, produce filler-fiber composite.
In the end in aspect, the present invention relates to a kind of filler-fiber composite, comprise providing the white lime that contains citric acid, in first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce CaCO to first order reactor 3Tailing, and at CO 2Exist to add down and contain the white lime of sodium bicarbonate to this tailing of first order reactor, produce the calcium hydroxide calcium carbonate slurry that part transforms, and the calcium hydroxide calcium carbonate slurry reaction that this part is transformed, produce filler-fiber composite.
Detailed Description Of The Invention
Precipitation with PCC of different shape
Continuous Flow stirred tank reactor (CFSTR)
Scalenohedron type form
First step in this method is to prepare high response Ca (OH) 2White lime emulsion (milk-of-lime slake) is also screened it now-325.This white lime is added in the reactor of stirring subsequently, makes it reach required reaction temperature, and the citric acid of interpolation 0.1% forms to suppress aragonite to this white lime, and and CO 2Gas reaction.This reaction proceeds to the degree of 10%-40%, stops reaction in this degree.Produce the Ca (OH) that part transforms like this 2/ CaCO 3Slurry (solids of about 20 weight %) is subsequently with coupling CO 2The speed of air feed is provided to it in reaction vessel, to keep given electrical conductivity (ion is saturated), produces scalenohedron type crystal.This reaction is proceeded, until reaching process stabilization.Mix with the fibril (about 1.5% concentration) and the water of dilution subsequently reaching the product of making under the stable situation (about 95% is transformed).This mixture subsequently with CO 2Gas reaction is pH7.0 to terminal.Make the product of making in this way under the total solid of 3%-5%, can comprise scalenohedron type PCC with respect to fibril about 0.2% to about 99.8%.
This product has the specific area of about 5 meters squared per gram to about 11 meters squared per gram; About 3% to about 5% product solid and about 0.2% to about 99.8% PCC content, and be the form that is mainly scalenohedron.
The aragonitic form
First step in this method is to prepare high response Ca (OH) 2The white lime emulsion is also screened it now-325.The concentration of this white lime is about 15 weight %.This white lime is added in the reactor of stirring subsequently, makes the reaction temperature that reaches required, adds the additive of about 0.05%-about 0.04%, with control form and size, and and CO 2Gas reaction.This reaction proceeds to the degree of 10%-40%, stops reaction in this degree.Produce the Ca (OH) that part transforms like this 2/ CaCO 3Slurry is subsequently with coupling CO 2The speed of air feed is provided to it in reaction vessel, to keep given electrical conductivity (ion is saturated), produces needle-like aragonitic crystal.This reaction is proceeded, until reaching process stabilization.Mix with the fibril (about 1.5% concentration) and the water of dilution reaching the product of making under the stable situation (about 95% calcium carbonate).This calcium carbonate and fibril subsequently with CO 2Gas reaction is pH7.0 to terminal.Make the product of making in this way under the total solid of about 3%-about 5%, comprise aragonitic PCC with respect to fibril about 0.2% to about 99.8%.
This product has the specific area of about 5 meters squared per gram to about 8 meters squared per gram; About 3 weight % are to the product solid of about 5 weight % with respect to the PCC content of fibril about 0.2% to about 99.8%, and to have mainly be the form of aragonitic.
Rhombohedron type form
First step in this method is to prepare high response Ca (OH) 2The white lime emulsion, it is-325 screened now, and has the concentration of about 20 weight %.The citric acid of interpolation 0.1% forms to suppress aragonite.The part of this white lime is added in the reactor of stirring, makes it reach required reaction temperature, and utilizes CO 2The gaseous carbon acidifying.This reaction proceeds to conductivity minimum, produces " tailing ".The calcium carbonate crystal that " tailing " is defined as transforming fully, have be generally about 1 micron to about 2.5 microns average particle size particle size, have crystal habit arbitrarily.Sodium bicarbonate is added in the remainder of untapped this white lime when preparing " tailing ".This white lime and CO 2With CO 2Air feed speed is added in this " tailing ", to keep given electrical conductivity (ion is saturated), produces rhombohedron type crystal.This reaction is proceeded, until reaching process stabilization.In case reach process stabilization, then this product (about 90%-95% is transformed) mixes with the fibril (about 1.5% concentration) and the water of dilution.Add additional C O 2PH7.0 to terminal.The product of making is in this way comprised with respect to the rhombohedron type PCC of fibril about 0.2% to about 99.8% and the total solid of about 3%-about 5%.
This product has the specific area of about 5 meters squared per gram to about 8 meters squared per gram; About 3% to about 5% product solid; With about 0.2% to about 99.8% PCC content, and to have mainly be rhombohedral form.
Embodiment
The following examples are intended to illustrate the present invention, and it does not limit the scope of the invention.
Embodiment 1
Scalenohedron type PCC
15 premium on currency and 3 kilograms of CaO produce the Ca (OH) of 20 weight % 50 ℃ of reactions down 2White lime.Now screen this Ca (OH)-325 subsequently 2White lime, the white lime that obtains screening, the white lime of this screening are transferred to a 30-who stirs with 615 rev/mins (rpm) and rise in the double-jacket stainless steel reaction container.According to premier's opinion CaCO that will produce 3Weight is counted 0.1% citric acid and is added to 30-and rises in the white lime of this screening in the reaction vessel, and makes the temperature of content reach 40 ℃.Beginning to be added in the air is 20% CO 2Gas (14.83 standard liter minute CO 2/ 59.30 standard liter minute air) rise in the reaction vessel to this 30-, produce 2: 1Ca (OH) 2/ CaCO 3Slurry.Stop CO this moment 2The 20-that stirring also transferred to this slurry by air feed rises in the storage container.
2: 1 Ca (OH) with 2 liters 2/ CaCO 3Slurry is transferred to a 4-and is risen in (1250rpm) stainless steel double-jacket reaction vessel that stirs.Make temperature reach 51 ℃, and will be 20% CO in air 2Gas (1.41 standard liter minute CO 2/ 5.64 standard liter minute air) add a 4-to and rise in the reaction vessel, reach 7.0, produce CaCO up to pH 3Slurry.In case pH reaches 7.0, then begin to add 20-and rise 2 in the storage container: 1Ca (OH) 2/ CaCO 3Slurry to the 4-rises in the reaction vessel, and continuing simultaneously to be added in the air is 20% CO 2Gas (1.41 standard liter minute CO 2/ 5.64 standard liter minute air) rise in the reaction vessel to a 4-, to keep the saturated electrical conductivity of about 90% ion.With Ca (OH) 2/ CaCO 3Slurry and CO 2Be added into the operation that a 4-rises in the reaction vessel and continued about 12 hours, keep constant substantially, produce about 98% CaCO that is transformed up to the product physical property 3Slurry.This 98%CaCO with 0.18 liter 3Slurry is transferred to the 2nd 4-and is risen in (1250rpm) stainless steel double-jacket reaction vessel that stirs, and adds the cellulose fibre of 0.66 liter 3.8% dry weight, and is diluted to 1.5% denseness.CaCO 3This mixture of slurry and fiber and the CO that is 20% in air 2Gas (1.41 standard liter minute CO 2/ 5.64 standard liter minute air) reaction produces CaCO 3Filler/fiber composite.This pearl filler has the form that is mainly scalenohedron.
Embodiment 2
Aragonitic PCC
10.5 premium on currency and 2.1 kilograms of CaO produce the Ca (OH) of 15 weight % 50 ℃ of reactions down 2White lime.Now screen this Ca (OH)-325 subsequently 2White lime, the white lime that obtains screening, the white lime of this screening are transferred to the 30-that stirs with 615rpm and rise in the double-jacket stainless steel reaction container.Add high surface (HSSA) aragonitic seed (surface area～40 meters squared per gram, about 25% solid) of 0.1 weight % to 30-and rise in the reaction vessel, and make the temperature of content reach 51 ℃." crystal seed " is defined as reaching home and is ground into the aragonitic crystal that transforms fully of high-specific surface area (promptly greater than 30 meters squared per gram, and usually particle size is the 0.1-0.4 micron).Beginning to be added in the air is 10% CO 2Gas (5.24 standard liter minute CO 2/ 47.12 standard liter minute air) rise in the stainless steel double-jacket reaction vessel to this 30-, the interpolation time is 15 minutes, afterwards CO 2It is 20% (10.47 standard liter minute CO that concentration is enhanced in air 2/ 41.89 standard liter minute air), added again 15 minutes, produce 2.3: 1Ca (OH) 2/ CaCO 3Slurry.Stop CO this moment 2Air feed.This 2.3: 1Ca (OH) 2/ CaCO 3Slurry is switched in 20 liters of storage containers of stirring.With 2 liters this 2.3: 1Ca (OH) 2/ CaCO 3Slurry is transferred to a 4-and is risen in the double-jacket stainless steel reaction container that stirs, and stirs and is set to 1250rpm, and make temperature reach 52 ℃.To in air 20% CO 2Gas (1.00 standard liter minute CO 2/ 3.99 standard liter minute air) begin to add to a 4-and rise in the reaction vessel, and continue this reaction, reach 7.0, produce 100%CaCO up to pH 3Slurry.Make a 4-rise 100%CaCO in the reaction vessel 3The temperature of slurry reaches 63 ℃.Begin to add 20-and rise 2.3 in the storage container: 1Ca (OH) 2/ CaCO 3Slurry to the 4-rises in the reaction vessel, and continuing simultaneously to be added in the air is 20% CO 2(1.00 standard liter minute CO 2/ 3.99 standard liter minute air) rise in the reaction vessel to a 4-, keep the saturated electrical conductivity of about 90% ion.Continue this and reacted about 9 hours, constant substantially until the physical property maintenance of the product that is produced, produce 98 weight %CaCO 3Slurry.
This 98%CaCO with 0.35 liter 3Slurry is transferred in (1250rpm) stainless steel double-jacket reaction vessel that the 2nd 4-rise to stir, and water to the two 4-of 1.0 liters of cellulose fiber peacekeepings that add 0.66 liter 3.8 weight % rise in the reactor, produce the CaCO of 1.5 weight % 3/ fibre blend.Being added in the air is 20% CO 2Gas (1.00 standard liter minute CO 2/ 3.99 standard liter minute air) rise in the reaction vessel to the 2nd 4-, reach 7.0 up to pH, at this moment, reaction is finished, and produces CaCO 3/ fibrous composite.This composite is made of about 75% aragonitic PCC-fiber.
Embodiment 3
Rhombohedron type PCC
15 premium on currency and 3 kilograms of CaO produce the Ca (OH) of 20 weight % 50 ℃ of reactions down 2White lime.Now screen this Ca (OH)-325 subsequently 2White lime, the white lime that obtains screening, the 20-that the white lime of this screening is transferred to stirring rises in the storage container.The white lime of 2 liters of screenings is risen in the stainless steel double-jacket reaction vessel of transferring to the stirring of 4-liter the storage container from this 20-, and beginning is stirred with 1250rpm.According to theoretical CaCO 3Weight is counted 0.03% citric acid and is added to a 4-and rises in the reaction vessel, and the temperature of content is increased to 50 ℃.In air 20% CO 2Gas (1.44 standard liter minute CO 2/ 5.77 standard liter minute air) be added to a 4-and rise in the reaction vessel, reach 7.0, produce 100%CaCO until pH 3Slurry.Rise in the white lime of the screening in the storage container to 20-and to add based on CaCO 3Theoretical yield is counted the Na of 1.3 weight % 2CO 3Solution produces Ca (OH) 2/ Na 2CO 3White lime.The temperature that the one 4-is risen the content in the reaction vessel is increased to about 68 ℃, and begins 20-is risen Ca (OH) in the storage container 2/ Na 2CO 3White lime is added into a 4-and rises in the reaction vessel, and continuing simultaneously to be added in the air is 20% CO 2Gas (1.44 standard liter minute CO 2/ 5.77 standard liter minute air) rise in the reaction vessel to a 4-, to keep the saturated electrical conductivity of about 50% ion.Add Ca (OH) 2/ Na 2CO 3White lime and CO 2Operation continued about 12 hours, keep constant substantially up to the physical property of the product that is produced, produce about 98 weight %CaCO 3Slurry.
This 98%CaCO with 0.22 liter 3Slurry is transferred in (1250rpm) double-jacket stainless steel reaction container that the 2nd 4-rise to stir, and water to the two 4-of 1.0 liters of cellulose fiber peacekeepings that add 0.66 liter 3.8 weight % rise in the reactor, produce the CaCO of 1.5 weight % 3/ fibre blend.Adding other is 20% CO in air 2Gas (1.44 standard liter minute CO 2/ 5.77 standard liter minute air) rise in the reaction vessel to the 2nd 4-, reach 7.0 up to pH, at this moment, reaction is finished, and produces about 3.4 weight %CaCO 3/ fibrous composite.This calcium carbonate has and is mainly rhombohedral form.
Embodiment 4
The CFSTR of scalenohedron
15 premium on currency and 3 kilograms of CaO produce Ca (OH) 48 ℃ of reactions down 2White lime adds other 6 premium on currency, produces 20 weight %Ca (OH) 2White lime.This 20 weight %Ca (OH) 2White lime is-325 screened now, and is transferred to the 30-that stirs with 615rpm and rises in the double-jacket stainless steel reaction container.According to premier's opinion CaCO that will produce 3Weight is counted 0.015% citric acid and is added to 30-and rises in the reaction vessel, and makes the temperature of content reach 36 ℃.Beginning to be added in the air is 20% CO 2Gas (13.72 standard liter minute CO 2/ 54.89 standard liter minute air) rise in the reaction vessel to this 30-, produce 5: 1Ca (OH) 2/ CaCO 3Slurry.Stop CO 2Air feed and this Ca (OH) 2/ CaCO 3The 20-that slurry is transferred to stirring rises in the storage container.
Rise in the storage container that stirs, at 4-0.25 liter Ca (OH) 2/ CaCO 3Slurry combines with 0.66 liter 3.8 weight % fibrils and 1.09 premium on currency, makes Ca (OH) 2/ CaCO 3/ fibril material.With 2 liters Ca (OH) 2/ CaCO 3/ fibril material is transferred in (1250 rev/mins) reaction vessel that 4-rise to stir, and makes temperature reach 55 ℃, and to be used in the air be 20% CO 2Gas (1.30 standard liter minute CO 2/ 5.23 standard liter minute air) carbonating is 7.0 to pH, generation CaCO 3/ former fiber composite material.Prepare 16 liters the fibril of 1.5 weight % and the water that independent 10-rises container.Rise to 4-and to begin to add 20-in the reaction vessel and rise Ca (OH) in the storage container that stirs 2/ CaCO 3Slurry, together with the fibril mixture of 172.05ml/ minute 1.5% denseness, and 31.21ml/ minute other water, keep certain CO simultaneously 2Gas flow (1.30 standard liter minute CO 2/ 5.23 standard liter minute air), to keep the saturated electrical conductivity of about 90% ion, keep the mass balance of about 4-5% total solid simultaneously.
This reaction is proceeded, and keeps constant substantially up to the product physical property.Stop to add material, continue to add CO simultaneously from this storage container 2, and make the pH of the material in the reaction vessel that 4-rise to stir reach 7.0, stop to add CO this moment 2, produce 2.2: 1 CaCO 3/ former fiber composite material, wherein CaCO 3Has intact scalenohedron type form.
Embodiment 5
The CFSTR/ recycle/surfactant of scalenohedron
15 premium on currency and 3 kilograms of CaO produce Ca (OH) 48 ℃ of reactions down 2White lime adds other 6 premium on currency, produces 20 weight %Ca (OH) 2White lime.This 20%Ca (OH) 2White lime is-325 screened now, and is transferred to 30-and rises (615 rev/mins) in the reaction vessel.According to premier's opinion CaCO that will produce 3Weight is counted 0.015% citric acid and is added to this 30-and rises in the reaction vessel, and makes the temperature of content reach 35 ℃.Beginning to be added in the air is 20% CO 2Gas (14.08 standard liter minute CO 2/ 56.30 standard liter minute air) rise in the reaction vessel to this 30-, produce 5: 1Ca (OH) 2/ CaCO 3Slurry.Stop CO this moment 2Air feed and this Ca (OH) 2/ CaCO 3Slurry is transferred to 20-and rises in the storage container that stirs.
Rise in the storage container that stirs, at 4-0.25 liter Ca (OH) 2/ CaCO 3Slurry combines with 0.66 liter 3.8 weight % fibrils and 1.09 premium on currency, makes 2 liters Ca (OH) 2/ CaCO 3/ fibril material.
With 2 liters Ca (OH) 2/ CaCO 3/ fibril material is transferred to 4-and is risen in stainless steel double-jacket stirring (1250 rev/mins) reaction vessel, and makes temperature reach 58 ℃.This Ca (OH) 2/ CaCO 3/ fibril material and the CO that is 20% in air 2Gas (1.30 standard liter minute CO 2/ 5.23 standard liter minute air) react to pH be 7.0.
At this moment, prepare 16 liters the fibril (fibril of 6.32 liter of 3.8% denseness and 9.68 premium on currency) of 1.5 weight % and the water that independent 10-rises container.Interpolation is 0.04% surfactant based on the volume of the fiber of 1.5% denseness.
PH reaches 7.0 in the reaction vessel in case rise at 4-, then begins to rise to add in the reaction vessel from 20-to 4-to rise remaining 5 in the storage container that stirs: 1Ca (OH) 2/ CaCO 3Slurry, and flow is 176.48ml/ minute 1.5% fibril mixture, and, keep certain CO simultaneously from 32.00ml/ minute the water that 10-rises container 2Gas flow (1.30 standard liter minute CO 2/ 5.23 standard liter minute air), to keep the saturated electrical conductivity of about 90% ion, keep the mass balance of about 4-5% total solid simultaneously.Continue to add material from the storage container of this stirring to this reaction vessel, keep constant substantially up to the physical property of product.Stop to add material this moment, continue to add CO simultaneously from this storage container 2, reach 7.0 to pH, stop to add CO this moment 2Produce 2.33: 1 CaCO like this 3/ former fiber composite material, wherein calcium carbonate has intact scalenohedron type form.
Embodiment 6
The CFSTR/ polyacrylamide of scalenohedron
15 premium on currency and 3 kilograms of CaO produce Ca (OH) 48 ℃ of reactions down 2White lime adds other 6 premium on currency, produces 20 weight %Ca (OH) 2White lime.This 20%Ca (OH) 2White lime produces the white lime of screening subsequently-325 screened now, and it is transferred to 30-and rises in (615rpm) reaction vessel that stirs.According to premier's opinion CaCO that will produce 3Weight is counted 0.1% citric acid and is added to this 30-and rises in the reaction vessel, and makes the temperature of content reach 50 ℃.Beginning to be added in the air is 20% CO 2Gas (15.01 standard liter minute CO 2/ 60.06 standard liter minute air) rise in the reaction vessel to this 30-, produce 5: 1Ca (OH) 2/ CaCO 3Slurry.Stop CO 2Air feed and this slurry are transferred to 20-and rise in the storage container that stirs.In the container that the 4-liter stirs, add 0.31 liter Ca (OH) 2/ CaCO 3Slurry, the fibril of 0.60 liter 3.8% denseness and 1.09 premium on currency generate Ca (OH) 2/ CaCO 3/ fibril material.This Ca (OH) with 2 liters 2/ CaCO 3/ fibril material is transferred to 4-and is risen in (1250 rev/mins) reaction vessel that stirs, and makes temperature reach 51 ℃.Beginning to be added in the air is 20% CO 2(1.34 standard liter minute CO 2/ 5.34 standard liter minute air), reach 7.0, produce CaCO up to pH 3/ former fiber composite material.
At this moment, prepare 16 liters the fibril (fibril of 6.32 liter of 3.8% denseness and 9.68 premium on currency) of 1.5 weight % and the water that independent 10-rises container.Interpolation is 0.05% cationic polyacrylamide (Percol 292) based on the volume of 1.5% denseness fibril.
In case the pH that rises in the reaction vessel at 4-reaches 7.0, then begin to rise remaining 5 in the storage container that interpolation is stirred from the 20-liter in the double-jacket reaction vessel that stirs: 1Ca (OH) to 4- 2/ CaCO 3Slurry, and flow is 90ml/ minute 1.5% fibril mixture, and 48.5ml/ minute other water, keep certain CO simultaneously 2Gas flow (1.30 standard liter minute CO 2/ 5.23 standard liter minute air), keeping the saturated electrical conductivity of about 90% ion, and keep the mass balance of this reaction, to keep the production concentration of about 4-5% solid.Continue to add from the material in the storage container of this stirring to this reaction vessel, constant substantially up to the physical property maintenance of product.Stop to add the material that rises storage container from 20-, continue to add CO simultaneously 2, reach 7.0 to pH, stop to add CO this moment 2, produce 3.34: 1 CaCO 3/ former fiber composite material, wherein PCC has intact scalenohedron type form.
The definition of fibril
Fibril is by refining (in pulp processing industry known any paper pulp refiner) cellulose and/or mechanical pulp fiber production.These fibrils have the length of the thickness and the 10-400 micron of 0.1-2 micron usually, and in addition according to United States Patent (USP) 6,251,222 preparations, this patent is quoted for your guidance by this paper.
Use Escher-Wyss (taper) refiner that control fiber of the present invention is refined to 80 ° of SR (beating degree) at Empire State Paper Research Institute (ESPRI).Measure this control fibril (use arithmetic average) with the fiber quality analyzer, be measured as the 200-400 micron.
How to prepare control filler/fiber
Produce the white lime of 15% solid and mix with fibril (～1.5% denseness).At CO 2React pH7.0 to terminal under existing, produce filler/fiber composite, its surface area that has is 6-11m 2/ g (～60-80%PCC, but in composite, can have more or less amount).
Table 1
Breaking length physical property (rice)
The filler loading Scalenohedron type filler/fiber Aragonitic filler/fiber Rhombohedron type filler/fiber Control filler/fiber
20 4,021 4,599 4,312 4,245
25 3,799 4,358 3,813 3,715
30 3,280 3,674 3,871 2,998
Table 2
TENSILE STRENGTH physical property (kN/m)
The filler loading Scalenohedron type filler/fiber Aragonitic filler/fiber Rhombohedron type filler/fiber Control filler/fiber
20 3.062 3.555 3.397 3.382
25 3.124 3.324 2.999 3.021
30 2.658 2.785 3.005 2.448
Table 3
Internal bond physical property (ft-/b)
The filler loading Scalenohedron type filler/fiber Aragonitic filler/fiber Rhombohedron type filler/fiber Control filler/fiber
20 237.70 264.07 283.13 255.67
25 263.20 285.95 251.65 256.95
30 242.63 248.60 273.65 249.53
Compare with control filler/fiber, the filler/fiber composite of morphology Control demonstrates equivalence or better physical property (being TENSILE STRENGTH, breaking length and internal bond).
Table 4
ISO opacity optical property
The filler loading Scalenohedron type filler/fiber Aragonitic filler/fiber Rhombohedron type filler/fiber Control filler/fiber
20 89.20 88.20 87.38 88.18
25 89.93 89.15 88.78 89.55
30 90.95 90.40 89.68 90.83
Table 5
The pigment scatter optical property
The filler loading Scalenohedron type filler/fiber Aragonitic filler/fiber Rhombohedron type filler/fiber Control filler/fiber
20 60.15 55.47 55.08 58.55
25 64.90 62.40 61.10 65.40
30 70.55 69.55 65.80 73.13
Compare with control filler/fiber, the filler/fiber composite of morphology Control demonstrates the optical property (being ISO opacity and pigment scatter) of equivalence.

Claims (16)

1. filler-fiber composite comprises:
(a) white lime that will contain citric acid is provided to first order reactor
(b) in this first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce CaCO 3Tailing, and
(c) will contain the white lime of sodium bicarbonate at CO 2Exist down and add in the tailing of first order reactor, with the calcium hydroxide calcium carbonate slurry of generation part conversion, and
(d) the calcium hydroxide calcium carbonate slurry reaction that this part is transformed produces filler-fiber composite.
2. the filler-fiber composite of claim 1, the thickness of wherein said fiber is about 0.1 micron to about 2 microns, and length is about 10 microns to about 400 microns.
3. the filler-fiber composite of claim 2, wherein said filler is the rhombohedron type, has the specific area of about 5 meters squared per gram to about 11 meters squared per gram.
4. the filler-fiber composite of claim 3, the wherein conversion from about 20% to about 40% carried out of calcium hydroxide calcium carbonate slurry.
5. the filler-fiber composite of claim 4, the wherein conversion from about 41% to about 99% carried out of the calcium hydroxide calcium carbonate slurry that transforms of part for the first time.
6. the filler-fiber composite of claim 5, wherein the calcium hydroxide calcium carbonate slurry that transforms of part is converted into filler-fiber composite for the second time.
7. method that is used for the production filler-fiber composite comprises:
(a) white lime that will contain citric acid is provided to first order reactor
(e) in this first order reactor, in the presence of carbon dioxide, make this white lime that contains citric acid reaction, produce CaCO 3Tailing, and
(f) will contain the white lime of sodium carbonate at CO 2Exist down and add in the tailing of first order reactor, with the calcium hydroxide calcium carbonate slurry of generation part conversion, and
(g) the calcium hydroxide calcium carbonate slurry reaction that this part is transformed produces filler-fiber composite.
8. the method for the production filler-fiber composite of claim 7, the thickness of wherein said fiber is about 0.1 micron to about 2 microns, and length is about 10 microns to about 400 microns.
9. the method for the production filler-fiber composite of claim 8, wherein said filler is the rhombohedron type, and has the specific area of about 5 meters squared per gram to about 11 meters squared per gram.
10. the method for the production filler-fiber composite of claim 9, the wherein conversion from about 20% to about 40% carried out of calcium hydroxide calcium carbonate slurry.
11. the method for the production filler-fiber composite of claim 10, the wherein conversion from about 41% to about 99% carried out of the calcium hydroxide calcium carbonate slurry that transforms of part for the first time.
12. the method for the production filler-fiber composite of claim 11, wherein the calcium hydroxide calcium carbonate slurry of part conversion for the second time is converted into filler-fiber composite.
13. the filler-fiber composite of the claim of in paper or cardboard, using 1.
14. the filler-fiber composite of the claim of in paper or cardboard, using 7.
15. use the paper of the filler-fiber production of claim 1.
16. use the paper of the filler-fiber production of claim 7.
CNA2003801055251A 2002-12-09 2003-12-03 Filler-fiber composite Pending CN1723316A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103097607A (en) * 2010-04-22 2013-05-08 诺德卡尔克有限公司 The use of acidic water in the manufacture of paper
CN106460339A (en) * 2014-05-08 2017-02-22 斯道拉恩索公司 A method of making a thermoplastic fiber composite material and web
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040168781A1 (en) * 2002-08-05 2004-09-02 Petri Silenius Noil for use in paper manufacture, method for its production, and paper pulp and paper containing such noil
DE102007029688A1 (en) * 2007-06-27 2009-01-02 Voith Patent Gmbh Process for forming fillers, in particular calcium carbonate in a suspension
EP2287398A1 (en) 2009-07-20 2011-02-23 Voith Patent GmbH Method for producing a calcium carbonate particle and compound material containing fibre fibrils
FI20105128A (en) * 2010-02-10 2011-08-11 Kemira Oyj Process for making a pigment-fiber composite
FI124634B (en) 2010-06-11 2014-11-14 Upm Kymmene Oyj Method and apparatus for in-line production of lime milk in a PCC in-line manufacturing process arranged in connection with a fiber web machine
FI20116326A (en) * 2011-12-28 2013-06-29 Nordkalk Oy Ab Use of precipitated carbonate in the manufacture of a fiber product
FI20125569L (en) * 2012-05-28 2013-11-29 Nordkalk Oy Ab Preparation and use of a composite structure containing precipitated carbonate
CA2941374C (en) 2013-04-26 2021-03-16 Pacific Nano Products, Inc. Fibrous structured amorphous silica including precipitated calcium carbonate, compositions of matter made therewith, and methods of use thereof
TWI654141B (en) * 2014-03-31 2019-03-21 日商日本製紙股份有限公司 Calcium carbonate microparticles and method of producing the same
CN108101091B (en) * 2017-12-30 2020-05-12 石家庄市红星钙业有限公司 Method and device for producing calcium carbonate by dynamic carbonization method

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1447566A (en) * 1974-02-14 1976-08-25 Ici Ltd Production of calcium carbonate
US4157379A (en) * 1976-04-16 1979-06-05 Toyo Soda Manufacturing Co., Ltd. Process for producing chain structured corpuscular calcium carbonate
US5096539A (en) * 1989-07-24 1992-03-17 The Board Of Regents Of The University Of Washington Cell wall loading of never-dried pulp fibers
DE69125050T2 (en) * 1990-05-14 1997-10-16 New Oji Paper Co Process for modifying cellulosic fibers with a practically water-insoluble inorganic compound
EP0486423B1 (en) * 1990-10-30 1997-01-22 Ciba SC Holding AG Oligomer mixtures of triphenedioxazine compounds, process for their preparation, and their use
FR2689530B1 (en) * 1992-04-07 1996-12-13 Aussedat Rey NEW COMPLEX PRODUCT BASED ON FIBERS AND FILLERS, AND METHOD FOR MANUFACTURING SUCH A NEW PRODUCT.
US5275699A (en) * 1992-10-07 1994-01-04 University Of Washington Compositions and methods for filling dried cellulosic fibers with an inorganic filler
ATE312799T1 (en) * 1992-12-23 2005-12-15 Imerys Minerals Ltd METHOD FOR TREATING WASTE SUSPENSIONS
US5679220A (en) * 1995-01-19 1997-10-21 International Paper Company Process for enhanced deposition and retention of particulate filler on papermaking fibers
US5665205A (en) * 1995-01-19 1997-09-09 International Paper Company Method for improving brightness and cleanliness of secondary fibers for paper and paperboard manufacture
FI100729B (en) * 1995-06-29 1998-02-13 Metsae Serla Oy Filler used in papermaking and method of making the filler
FI100670B (en) * 1996-02-20 1998-01-30 Metsae Serla Oy Process for adding filler to cellulose fiber based m assa
US5928470A (en) * 1997-11-07 1999-07-27 Kimberly-Clark Worldwide, Inc. Method for filling and coating cellulose fibers
FI106140B (en) * 1997-11-21 2000-11-30 Metsae Serla Oyj Filler used in papermaking and process for its manufacture
ATE252181T1 (en) * 1998-02-20 2003-11-15 Air Liquide METHOD FOR SYNTHESIZING CALCIUM CARBONATE AND PRODUCT PRODUCED
BR9909003A (en) * 1998-03-23 2000-11-28 Pulp Paper Res Inst Process for the production of pulp fibers loaded in a lumen with a particulate calcium carbonate filler, lumen of pulp fibers, and, pulp fibers
US6355138B1 (en) * 2000-02-24 2002-03-12 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
DE10033979A1 (en) * 2000-07-13 2002-01-24 Voith Paper Patent Gmbh Method for loading fibers with calcium carbonate
US6413365B1 (en) * 2001-07-11 2002-07-02 Voith Paper Patent Gmbh Method of loading a fiber suspension with calcium carbonate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103097607A (en) * 2010-04-22 2013-05-08 诺德卡尔克有限公司 The use of acidic water in the manufacture of paper
CN106460339A (en) * 2014-05-08 2017-02-22 斯道拉恩索公司 A method of making a thermoplastic fiber composite material and web
US11078626B2 (en) 2014-05-08 2021-08-03 Stora Enso Oyj Method of making a thermoplastic fiber composite material and web
CN110678605A (en) * 2017-03-31 2020-01-10 日本制纸株式会社 Method for producing inorganic particle composite fiber sheet
US11268241B2 (en) 2017-03-31 2022-03-08 Nippon Paper Industries Co., Ltd Method for manufacturing inorganic particle composite fiber sheet
CN110678605B (en) * 2017-03-31 2022-07-08 日本制纸株式会社 Method for producing inorganic particle composite fiber sheet

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