US3647493A - Method and apparatus for continuously producing solutions and suspensions - Google Patents

Method and apparatus for continuously producing solutions and suspensions Download PDF

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Publication number
US3647493A
US3647493A US875962A US3647493DA US3647493A US 3647493 A US3647493 A US 3647493A US 875962 A US875962 A US 875962A US 3647493D A US3647493D A US 3647493DA US 3647493 A US3647493 A US 3647493A
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Prior art keywords
particles
solvent
suspensions
whirling
mass
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Expired - Lifetime
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US875962A
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English (en)
Inventor
Walter Gresch
Horst Pilch
Erwin Ruttener
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Buss AG
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Buss AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71705—Feed mechanisms characterised by the means for feeding the components to the mixer using belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/426—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with consecutive casings or screws, e.g. for charging, discharging, mixing
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/831—Devices with consecutive working receptacles, e.g. with two intermeshing tools in one of the receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/714—Feed mechanisms for feeding predetermined amounts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/924—Significant dispersive or manipulative operation or step in making or stabilizing colloid system
    • Y10S516/929—Specified combination of agitation steps, e.g. mixing to make subcombination composition followed by homogenization
    • Y10S516/931—High shear followed by low shear

Definitions

  • the novel in- Rehned s Appucafion Data vention serves to effect a continuous dissolving process of a chemical solute in a solvent and does so in a fashion which [63] commuatlonm'part of 5 prevents the formation of agglomerates and jellylike skin on 1966- the particles and serves to dissolve or suspend such materials without introducing high sheer force into the product.
  • the novel invention contemplates to Dec. 20, 1965 Switzerland 1 7696/65 effect a high-Speed whirling or fluffing of the Particles and, at the same time, to impart a positive downward movement [52] US.
  • This invention generally relates to a method and apparatus for continuously producing chemical solutions and suspensions and particularly concerns a method and apparatus wherein a continuous dissolving process is carried out with those materials wherein difficulties previously have been experienced in overcoming agglomerate formation between the solid and the solvent and wherein the solvent tended to form a jellylike skin which had to be rubbed off so as to expose new particle surfaces for the solvent penetration.
  • an additional object of the instant invention concerns the provision of a new and improved method and apparatus of the type described which serves to prevent the formation of agglomerates and further serves to prevent the formation of a jellylike skin by the solvent over the solid solute particles.
  • Another significant object of the instant invention concerns the provision of a new and improved method and apparatus of the described general type which operates in an efiicient and highly economical fashion.
  • novel invention takes the form of both a method and apparatus operative to continuously produce chemical solutions and suspensions.
  • the novel invention is characterized by the features that the solid particles are whirled at high speed and are fiuffed while, at the same time, a positive downward movement is imparted thereto.
  • the solvent is sprayed into the whirling mass at stepwise, spaced locations along the direction of movement of the mass, which mass, now fully wetted, is subsequently mildly continuously agitated and kneaded at a relatively low speed for a length of time corresponding to the time required for the dissolving or suspension reactions to complete.
  • the difference in speed between the high-speed whirling or fluffing procedure and the low-speed continuous mild agitation and kneading represents a 66.6 multiple although at least a tenfold multiple has been found to be sufficient.
  • the novel apparatus for carrying out the method above discussed is contemplated to comprise a continuous kneader means operating at a given relatively low r.p.m. such as 45 r.p.m., for example.
  • a continuous mixer means is disposed upstream of the kneader means and serves to form a solution free from agglomerates of solids and liquids and serves to feed the solution to the kneader means.
  • Separate inlet means are associated with the mixer means and serve to deliver the solids and liquids to the mixer means with the mixer means, in the preferred embodiment, comprising a housing and a shaft disposed within the housing, the shaft incorporating a plurality of mixing and comminuting elements spaced along the length thereof.
  • means for driving the shaft at a considerably higher multiple r.p.m. than the rpm. of the kneader means are provided such that the solids and liquids fed thereto are rapidly whirled and such that the solids are, in fact, fluffed.
  • such shaft is contemplated to be driven at approximately 3,000 rpm.
  • the preferred arrangement or apparatus for continuously producing solutions or suspensions will be seen to comprise a continuous kneader 1 having a housing 2 in which is disposed a rotatable worm 3 driven at a relatively low r.p.m., such as 45 r.p.m., for example, by means of a motor 4 and suitable adjustable gearing disposed in housing 4.
  • a high-speed mixer 5 is provided and has a discharge opening 6 coupled with the feed opening of the housing 2 of the continuous kneader 1.
  • the high-speed mixer incorporates a vertical housing 7 in which a shaft 8 is disposedv
  • shaft 8 incorporates a series of mixing and comminuting elements 9 spaced along the shaft length and which project radially outward therefrom.
  • An electric motor 10 is provided and is coupled with the end of the shaft extending above the top end of a housing 7, electric motor 10 driving the shaft at a relatively high speed, such as 3,000 rpm, for example. Accordingly, the rpm. of shaft 8 thus comprises a considerably higher multiple than that of the worm 3 and, in the example given, will be seen to turn 66.6 times faster than the worm although at least a tenfold multiple has been found to be suitable.
  • the solid matter or solute which is to be dissolved in the liquid or solvent is initially contained in a hopper l1 and is delivered, in metered amounts, to an inlet 13 disposed in the upper portion of the mixer by means of an endless belt or weigh feeder 12.
  • the solid matter which at this time has become pulverized is engaged by the winglike mixing and comminuting elements 9 and specifically is initially. engaged by the comminuting element provided on the shaft in the region of the inlet opening. Due to the high speed of revolution of the shaft 8, the solid matter is caused to be rapidly whirled or rotated and actually fluffed whereby relatively loose agglomerates of the solid or solute are broken up. At the same time, the fluffed, rapidly whirling particles have a positive downward movement imparted thereto due to the combined effect of gravitational force and the construction of the mixing and comminuting elements 9.
  • Liquid or solvent is delivered from a container 14 through a feedpipe l5 and dosing or metering pump 17 to the vertical housing 7 of the mixer.
  • feedpipe 15 has a plurality of outlets stepwise spaced along the circumference of housing 7 in the direction of downward movement of the whirling particles.
  • the discharge of the liquid or solvent in this fashion into the whirling mass serves to fully wet the mass as the whirling mass is positively, or under gravitational force, driven downwardly.
  • the inside surface of the walls of housing 7 is preferably provided with stationary elements 16 having a wedgelike cross section, these stationary elements cooperating with the mixing and comminuting elements 9.
  • the wetted mass or mixture enters the continuous kneader 1 through discharge opening 6 of the mixer housing 7 and such mixture can be further processed without difficulty.
  • the wetted mass is mildly but continuously agitated and kneaded with a dwell time corresponding to the time required for the dissolving or suspension reactions to complete.
  • a dwell time corresponding to the time required for the dissolving or suspension reactions to complete.
  • housing 7 preferably has a separate inlet for each of the substances to be mixed together.
  • the above-described arrangement is, for example, particularly suitable for dissolving polyacrylo nitrile in dimethylformamide, acetyl cellulose in acetone, PVC in cycle-hexanone, for example, and for producing suspensions from terephthalic acid and glycol, for example, whereby the time that the product is in the arrangement for continuously producing solutions and suspensions as against that spent in a batch operating arrangement, is appreciably shorter.
  • the quality of the product is improved and, when dissolving polyacrylo nitrile in dimethylformamide, for example, the yellowing which otherwise appears, is greatly reduced or even altogether eliminated.
  • the resulting spinning solution was seen to have optimum light color and clarity and was free of any gel particles rendering a final product having the desired properties.
  • the polyacrylo nitrile polymer in the form of a very fine powder having a tendency to shooting and bridging was continuously proportioned at a rate of approximately 200 kg./hr. into the inlet 13 of the high-speed mixer 5 wherein it was fluffed and whirled and given a downward feed by the mixing and comminuting member 9' in the inlet throat. 800 kg./hr. of the solvent was stepwise added through the spray nozzles 15.
  • the high-speed mixer was driven at a rate of 3,000 r.p.m. and the material rapidly passing through was instantaneously dissolved with the product temperature rising from the ambient only to about 40 C.
  • the housing 7 of the high-speed mixer 5, in this exemplary operation was cooled by water at ambient temperature and it was noted that the absorbed power was only approximately 10 hp.
  • the dissolved product then passed into the continuous kneader 1 through the discharge opening 6 of the high-speed mixer 5 and entered such kneader at the rate of 1,000 kg./hr.
  • the dissolved product in this exemplary arrangement was slightly heated to below C. and was agitated for the stabilization of the solution.
  • the kneader pocket and the internal worm or screw l preferably was heated to C. from an external steam supp y and the screw was run at 42 r.p.m.
  • a method for continuously producing chemical solutions and suspensions comprising the steps of:
  • delivering into a mixer means a metered dose of solid solute particles in a finely comminuted condition
  • said first speed at which said particles are whirled being at least 10 times greater than said second speed at which the wetted further comminuted agglomerates are mildly continuously agitated and kneaded;

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US875962A 1965-12-20 1969-11-12 Method and apparatus for continuously producing solutions and suspensions Expired - Lifetime US3647493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1769665A CH437217A (de) 1965-12-20 1965-12-20 Einrichtung zum kontinuierlichen Herstellen von Lösungen und Suspensionen

Publications (1)

Publication Number Publication Date
US3647493A true US3647493A (en) 1972-03-07

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ID=4427386

Family Applications (1)

Application Number Title Priority Date Filing Date
US875962A Expired - Lifetime US3647493A (en) 1965-12-20 1969-11-12 Method and apparatus for continuously producing solutions and suspensions

Country Status (8)

Country Link
US (1) US3647493A (de)
AT (1) AT274742B (de)
BE (1) BE691483A (de)
BR (1) BR6685479D0 (de)
CH (1) CH437217A (de)
FR (1) FR1506697A (de)
NL (1) NL6617778A (de)
SE (1) SE334143B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398774A1 (fr) * 1977-07-26 1979-02-23 Akzona Inc Procede de preparation d'une solution de cellulose dans un oxyde d'amine tertiaire
US4211574A (en) * 1977-07-26 1980-07-08 Akzona Incorporated Process for making a solid impregnated precursor of a solution of cellulose
US4778835A (en) * 1985-12-09 1988-10-18 Eastman Kodak Company Process and apparatus for preparing polyester dissipations
US5609831A (en) * 1992-08-20 1997-03-11 Bernhard Rustige Gmbh & Co. Kommanditgesellschaft Machine for producing a cross-linked extruded product
EP1110690A2 (de) * 1999-12-21 2001-06-27 General Electric Company Kontinuierliche Herstellung von Hitze-vulkanisierbarer Silikon Zusammensetzung
EP2446957A3 (de) * 2005-09-28 2012-08-22 China Tobacco Hunan Industrial Corporation Vorrichtungen für die Zugabe von Tabakstaub zu Papier zur Herstellung eines Tabakblättchens
US20130126647A1 (en) * 2010-05-21 2013-05-23 Charles Allen Arnold Comminution Reactor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2701542C2 (de) * 1977-01-15 1985-09-12 Dietrich Dipl.-Ing. 6240 Königstein Maurer Vorrichtung zur kontinuierlichen Herstellung und Förderung einer Mischung aus einem körnigen oder pulverförmigen, trockenen Feststoff und einer Flüssigkeit
US4428852A (en) * 1982-01-18 1984-01-31 E. I. Du Pont De Nemours And Company Continuous synthesis of chromium dioxide
PL142347B1 (en) * 1984-02-28 1987-10-31 Biuro Studiow I Projektow Energetycznych "Energoprojekt" Flow-through mixer
DE3601324A1 (de) * 1986-01-17 1987-07-23 Wacker Chemie Gmbh Verfahren zur kontinuierlichen herstellung von bei raumtemperatur vulkanisierbaren silikonmassen
DE4027888A1 (de) * 1990-09-03 1992-03-05 Stoess & Co Gelatine Verfahren zum kontinuierlichen aufloesen von gelatine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160352A (en) * 1959-06-15 1964-12-08 Gilman B Mollring Apparatus for pulverizing and dispersing solid material into liquid suspension

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160352A (en) * 1959-06-15 1964-12-08 Gilman B Mollring Apparatus for pulverizing and dispersing solid material into liquid suspension

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398774A1 (fr) * 1977-07-26 1979-02-23 Akzona Inc Procede de preparation d'une solution de cellulose dans un oxyde d'amine tertiaire
US4144080A (en) * 1977-07-26 1979-03-13 Akzona Incorporated Process for making amine oxide solution of cellulose
US4211574A (en) * 1977-07-26 1980-07-08 Akzona Incorporated Process for making a solid impregnated precursor of a solution of cellulose
US4778835A (en) * 1985-12-09 1988-10-18 Eastman Kodak Company Process and apparatus for preparing polyester dissipations
US5609831A (en) * 1992-08-20 1997-03-11 Bernhard Rustige Gmbh & Co. Kommanditgesellschaft Machine for producing a cross-linked extruded product
EP1110690A2 (de) * 1999-12-21 2001-06-27 General Electric Company Kontinuierliche Herstellung von Hitze-vulkanisierbarer Silikon Zusammensetzung
EP1110690A3 (de) * 1999-12-21 2002-03-20 General Electric Company Kontinuierliche Herstellung von Hitze-vulkanisierbarer Silikon Zusammensetzung
US6414054B1 (en) 1999-12-21 2002-07-02 General Electric Company Continuous preparation of heat-vulcanizable silicone compositions
US20020136085A1 (en) * 1999-12-21 2002-09-26 Jodi Boffard Continuous preparation of heat-vulcanizable silicone compositions
US20040257905A1 (en) * 1999-12-21 2004-12-23 Jodi Boffard Continuous annular layer mixer
US6913380B2 (en) 1999-12-21 2005-07-05 General Electric Company Continuous preparation of heat-vulcanizable silicone compositions
US7178973B2 (en) 1999-12-21 2007-02-20 General Electric Company Continuous annular layer mixer
EP2446957A3 (de) * 2005-09-28 2012-08-22 China Tobacco Hunan Industrial Corporation Vorrichtungen für die Zugabe von Tabakstaub zu Papier zur Herstellung eines Tabakblättchens
US20130126647A1 (en) * 2010-05-21 2013-05-23 Charles Allen Arnold Comminution Reactor

Also Published As

Publication number Publication date
AT274742B (de) 1969-09-25
CH437217A (de) 1967-06-15
BE691483A (de) 1967-05-29
BR6685479D0 (pt) 1973-12-27
FR1506697A (fr) 1967-12-22
NL6617778A (de) 1967-06-21
SE334143B (de) 1971-04-19

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