US3617313A - Hydrolyzing apparatus - Google Patents

Hydrolyzing apparatus Download PDF

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Publication number
US3617313A
US3617313A US689186A US3617313DA US3617313A US 3617313 A US3617313 A US 3617313A US 689186 A US689186 A US 689186A US 3617313D A US3617313D A US 3617313DA US 3617313 A US3617313 A US 3617313A
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United States
Prior art keywords
set forth
pressure
hydrolyzing
plug
vessel
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US689186A
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English (en)
Inventor
Bert S Harrington Jr
Joseph Vojacek Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPX Corp
Original Assignee
Chemetron Corp
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Filing date
Publication date
Application filed by Chemetron Corp filed Critical Chemetron Corp
Application granted granted Critical
Publication of US3617313A publication Critical patent/US3617313A/en
Assigned to CHEMETRON PROCESS EQUIPMENT, INC. reassignment CHEMETRON PROCESS EQUIPMENT, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE MARCH 24, 1980. Assignors: CHEMETRON-PROCESS EQUIPMENT, INC.,
Assigned to AMCA INTERNATIONAL CORPORATION, DARTMOUTH NATIONAL BANK BLDG., HANOVER, NEW HAMPSHIRE, 03755, A CORP. reassignment AMCA INTERNATIONAL CORPORATION, DARTMOUTH NATIONAL BANK BLDG., HANOVER, NEW HAMPSHIRE, 03755, A CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CHEMETRON PROCESS EQUIPMENT, INC. A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
    • A23J1/10—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from hair, feathers, horn, skins, leather, bones, or the like
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
    • A23J1/001—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from waste materials, e.g. kitchen waste
    • A23J1/002—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from waste materials, e.g. kitchen waste from animal waste materials
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
    • A23J1/06—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from blood
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/30—Working-up of proteins for foodstuffs by hydrolysis
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin

Definitions

  • This invention relates to a new and improved method and apparatus for the hydrolyzation or treatment under pressure of fibrous materials, and particularly of the byproducts of slaughter plants such as the feathers, blood, and offal of poultry.
  • the former methods of conversion of the poultry inedibles such as the conversion of feathers to an edible and otherwise useable substance high in protein and carbohydrates, and low in fiber and cellulose, was generally carried on by the batch method wherein they were maintained in a temperature of about 250 F. and about 30 pounds steam pressure gage for a period of IV: hours or longer so as to break down the edible organic materials therein.
  • Such batch operation was slow, time consuming, and expensive so that conversion of these inedible products to feed was conducted only in the areas of the large slaughter plants in the commercial poultry areas.
  • Another object of the present invention is the provision of a new and improved method for the treatment of fibrous material.
  • Another object of the present invention is the provision of a new and improved apparatus for the hydrolysis of waste fibrous materials.
  • Yet a further and more specific object of the present invention is the provision of a new and improved feeding apparatus for the hydrolysis of poultry feathers and other wastes in a continuous operation.
  • Yet a further object of the present invention is the provision of a new and improved feeding apparatus for the conversion of fibrous material which overcomes the difficulties mentioned above.
  • Still another object is the provision of an improved method of feeding fibrous material into a pressure hydrolyzing vessel.
  • an improved apparatus for the continuous process hydrolyzing under pressure of fibrous material such as that resulting from poultry wastes at a slaughterhouse.
  • the hydrolyzing takes place within a pressure vessel defining a hydrolyzing chamber.
  • Inlet passage means are provided to the vessel for continuously introducing untreated fibrous material into the vessel and discharge passage means are provided for continuously discharging the treated material from the vessel.
  • Suitable means are provided for continuously compressing the untreated material into a substantially pressure impervious plug within the inlet passage to provide a pressure seal, and pressure release means are provided for continuously releasing the treated material from the discharge passage means.
  • the plug is broken up and fluffed or shredded as it passes into the hydrolyzing chamber. In this manner it is possible to continuously feed the material to be treated through the hydrolyzing chamber while it is maintained under pressure.
  • This invention also relates to an improved method of continuously hydrolyzing a fibrous material under pressure including compacting the fibrous material to form a pressureimpervious seal in the inlet passage of the hydrolyzing chamber and breaking and shredding the material to pass into the hydrolyzing chamber.
  • the compression of the material according to the present invention provides an air-free plug excluding air from the hydrolyzing chamber. Additionally the compressing of the untreated bulk material into the substantially pressureimpervious plug extracts an amount of liquid from the material which will result in a determined amount of liquid in the raw fibrous material. A controlled amount of this liquid, which may be in part water, blood, or other materials, may be reintroduced into the pressure system at the combined flufier and mixer assembly or other desired point. According to the present invention the process may be carried on in the pressure range of 70 pounds per square inch gage and above, and temperature ranges in the area of 300 and above.
  • FIG. 1 is a somewhat schematic representation of a hydrolyzing apparatus according to the present invention
  • FIG. 2 is a plan view, in broken away section, of the new and improved hydrolyzing apparatus
  • FIG. 3 is a pictorial view of the agitator in the hydrolyzing chamber, taken along line 3-3 of FIG. 2;
  • FIG. 4 is a cross-sectional view of the feed arrangement for the hydrolyzer apparatus, taken along line 4-4 of FIG. 2;
  • FIG. 5 is a cross-sectional view of the fluffer or chipper in the material feed portion of the hydrolyzing apparatus, taken substantially along line 5-5 of FIG. 4;
  • FIG. 6 is a cross-sectional view of the pressure vessel taken substantially along its longitudinal axis.
  • FIGS. 7, 8 and 9 are cross-sectional views of the pressure vessel of FIG. 6 taken along lines 7-7, 8-8, and 9-9, respectively of FIG. 6.
  • the hydrolyzing apparatus 10 for the treatment or hydrolyzing under pressure of fibrous material such as poultry wastes in the form of feathers, blood, offal and the like.
  • the hydrolyzing apparatus 10 includes a feed portion 12, FIGS. 1, 2, 4 and 5, and a discharge portion I4, each operatively connected with a pressure vessel forming a hydrolyzing chamber 16.
  • the fibrous material to be treated is introduced into a bin or hopper 1,8 in any suitable manner as by a belt conveyor 19.
  • Such fibrous materials may include the bulk wastes from a slaughter plant such as the feathers and.
  • fibrous materials other than poultry wastes may be processed by the apparatus of the present invention.
  • Such solid materials as are introduced within the bin 18 contain a substantial quantity of liquids. particularly water and blood, and additionally will entrap substantial quantities of air.
  • the fibrous materials are compressed in any suitable manner as with a screw conveyor driven by a feed motor 21 through a suitable belt drive 22.
  • the screw conveyor 20 is preferably of the variable pitch type, having progressively closer pitch toward the discharge end thereof, thus aiding in the compression of the fibrous material.
  • the compressed material discharges from the screw conveyor 20 into an inlet passageway 23, preferably tapered outwardly, in the feed portion 12 of the hydrolyzing apparatus. At this time the fibrous material has taken on the form of a pressure-impervious plug 24, substantially free of air, with much of the liquid thereof squeezed out and collected from the bottom of the bin through a liquid discharge 25.
  • a fluffer and mixer or shredder assembly 28 effective to break the plug 24 up into small particles.
  • the fluffer and mixer assembly 28 contains a plurality of rotatable blades 29 driven in close proximity to the inner wall of the fluffer shell by a suitable drive motor 30 and belt drive 32. Since the plug 24 defines a pressure seal in the feed portion 12, the fluffer and mixer assembly may be maintained under suitable pressure and temperature to begin the hydrolysis process. To this end a metered amount of reaction material such as steam may be introduced into the inner cavity of the fluffer and mixer assembly through a suitable steam injection inlet 32.
  • any liquids to undergo the hydrolyzing process may be metered into the pressurized fluffer chamber through a liquid inlet 34 in the fluffer assembly 28 in the suitable proportions to provide a desired and controllable moisture content.
  • the blades 29 of the fluffer and mixing assembly 28 may comprise angularly and axially spaced eccentrics each having an outer arcuate surface 290 rotatable in close proximity to the inner surface of the fluffer shell. Each blade 29 additionally has concave sidewalls 29b to provide cutting edges 29c. A pair of shields 29d, HO. 5, outward of the blades 29 protects the packing section 37 of the fluffer and mixing assembly from solid particles of the fibrous material.
  • the flufi'ed or shredded material drops by gravity through a discharge opening 38, FIG. 4, in the bottom of the fiufier and mixer assembly 28 into the inlet end of the hydrolyzer chamber 16 through a material inlet 46.
  • the hydrolyzer chamber 16 is, of course, a pressure device wherein the liquid and fibrous material is subjected to the hydrolyzing action of heat and steam. It has been found that a wet steam at a pressure of about I00 pounds per square inch gage, introduced into the fluffer and mixer assembly, or, if desired through suitable steam inlets 47 in the hydrolyzer chamber 16, will be effective to treat poultry materials in approximately 6 minutes.
  • the hydrolyzer chamber 16 is provided with suitable blades or agitators 49 for agitating the material therein to obtain the most rapid hydrolyzing thereof, and additionally, the blades 49 are canted to provide a forward thrust to impel the materials along through the tube of the chamber.
  • the blades 49 are mounted to a rotary shaft 50 driven by a variable speed motor 51 through a belt drive 52. Regulation of the retention time therefore may readily be accomplished through the combined control of the discharge means, as well as by the variation of the speed of rotation of the blades 49.
  • a steam jacket 48 may surround the chamber 16 to conserve or add heat as desired.
  • the treated material is discharged from the hydrolyzing chamber at a metered rate to further control the rate of flow of the material through the hydrolyzing chamber.
  • the material must also be reduced in pressure to atmospheric, vapor must be removed, and the material must be dried for use.
  • a discharge 62 pressure feeds into the inlet of a discharge pump 65 driven by a variable speed motor 66.
  • the pump 65 serves as a metering device to regulate the rate of discharge from the hydrolyzing chamberl6.
  • the pump may be regulated to discharge at a desired pressure lower than the feed pressure thereto from the hydrolyzing chamber.
  • the pump 65 discharges through a suitable conduit 67.
  • the material may then be passed through a vapor separator 68 if desired which may be of the centrifugal type.
  • the vapor is bled off through a vapor outlet 70 and may be passed into a suitable condenser 71.
  • the condenser 71 may establish a sufficient vacuum so that the vapor separator 68 discharges to below atmospheric pressure thus causing a larger conversion of the wet steam of water into vapor.
  • cooling water is supplied to a water inlet 72 and the condensed vapor and water combined discharge through a condensate tube 73.
  • the liquid material, or the solids in liquid suspension passes from the vapor separator 68 through a discharge conduit 74 and into a dryer 75 where sufficient additional moisture may be driven from the treated material to provide the desired moisture content.
  • the material discharged from the dryer may be passed through a screen to separate out the fines where they will fall into a bin 81.
  • the material which does not pass through the screen 80 may be passed through a grinder 82.
  • the improved method relates to the continuous hydrolyzing under pressure of a fibrous material in a pressure vessel defining a hydrolyzing chamber.
  • the fibrous material is first compacted in the inlet passage to provide a pressure-impervious seal which advantageously may be in the form of a plug. Air may be removed from the fibrous material in its formation of the pressure seal, and additionally liquids may be extracted from the material. lf desired the liquids may be reintroduced into the pressure system downstream of the seal. After formation of the seal, the plug is removed downstream where it is continuously broken and shredded to pass as shredded material into the hydrolizing chamber. After the hydrolyzing is completed by the addition of water or other catalyst under high pressure and temperature, the treated material is removed from the hydrolyzing chamber through a pressure seal.
  • the method and apparatus according to the present invention provides improved hydrolyzing of fibrous material such as slaughterhouse wastes or byproducts in a continuous pressure process with a minimum loss of pressure in the pressurized hydrolyzing chamber.
  • the hydrolyzing may take place at a temperature in excess of 70 pounds per square inch gage. Since it has been found that the hydrolyzing of fibrous products intended for use as animal meal produces improved quality and quantity of digestible proteins and other ingredients above the pressure and temperature of wet steam at about 70 pounds per square inch gage, the apparatus according to the present invention produces a superior product compared to that generally available commercially.
  • the low cost and rapid processing of the material permits economical operation of the hydrolyzing apparatus so as to dispose of the slaughter house byproducts in the most advantageous and economical manner.
  • the hydrolyzing apparatus may be used for the treatment of materials other than slaughterhouse wastes, although the above description has been made with reference to byproducts of poultry slaughterhouses.
  • the discharge from the hydrolyzing chamber may be in any manner which will bring the material to atmospheric pressure. vaporizing to the extent possible the water contained in the treated product, and drying the treated product to the desired moisture content.
  • the pump 65 may be eliminated and throttling and metering of the material take place at the expansion valve 68.
  • An apparatus for the continuous processing of a material under pressure comprising: a pressure vessel having a cylindrical first wall defining an elongated tubular processing chamber and a second wall completely encompassing the first wall and defining a jacket in heat exchange relationship to and not in fluid communication with said processing chamber; inlet passage means for continuously introducing untreated material into said processing chamber; discharge passage means for continuously discharging treated material from said vessel; sealing means for continuously compressing the untreated material into a substantially pressure-impervious plug in said inlet passage means to define a pressure seal; a rotary shaft mounted coaxially within said processing chamber and a plurality of straight relatively long blades radially spaced from said shaft and mounted to said shaft on relatively short radial arms for conjoint rotation to agitate the material in said processing chamber, each of said blades having a substantially L-shaped cross section and having a straight outer edge substantially parallel to said shaft and in close proximity to said cylindrical first wall with any point on said edge equidistant from said cylindrical first wall during a complete rotation of said shaft; means for providing
  • An apparatus as set forth in claim 1 including mechanical breaking means in said inlet passage means for continuously breaking up said plug as it advances into said processing chamber.
  • An apparatus as set forth in claim 1 including means for introducing reagents into said vessel to mix with the material flowing therethrough.
  • sealing means includes a worm conveyor efiective to compress the material and partially separate liquids therefrom.
  • An apparatus as set forth in claim 4 including means reintroducing said liquids into the pressure system downstream of the plug.
  • An apparatus as set forth in claim 1 including a vapor separator connected to said discharge passage means.
  • An apparatus as set forth in claim 9 including a condenser connected to said vapor separator.
  • An apparatus as set forth in claim 2 including means for introducing reagents into said processing chamber to mix with the material flowing therethrough adjacent the location where the plug is being broken up.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Zoology (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Physiology (AREA)
  • Animal Husbandry (AREA)
  • Nutrition Science (AREA)
  • Fodder In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Fertilizers (AREA)
US689186A 1967-12-08 1967-12-08 Hydrolyzing apparatus Expired - Lifetime US3617313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68918667A 1967-12-08 1967-12-08

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US (1) US3617313A (de)
BE (1) BE724897A (de)
CH (1) CH493208A (de)
DE (1) DE1810032B2 (de)
DK (1) DK141521B (de)
FR (1) FR1594142A (de)
GB (1) GB1245150A (de)
IT (1) IT954023B (de)
NL (1) NL6816803A (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369802A1 (fr) * 1976-11-08 1978-06-02 Ibec Ind Procede d'hydrolyse de matieres keratiniques
US4172073A (en) * 1976-11-09 1979-10-23 Chemetron Corporation Method for the preparation of water-soluble keratinaceous protein using saturated steam and water
US4231926A (en) * 1978-12-11 1980-11-04 Rowland Retrum Method and apparatus for hydrolyzing keratinaceous material
EP0070600A1 (de) * 1981-07-17 1983-01-26 Stork Duke B.V. Verfahren zur Verarbeitung von Federn zu Pulver und Vorrichtung zur Ausführung des besagten Verfahrens
US4378311A (en) * 1978-12-11 1983-03-29 Rowland Retrum Method for hydrolyzing keratinaceous material
US4497733A (en) * 1980-10-15 1985-02-05 Rowland Retrum Apparatus for hydrolyzing keratinaceous material
WO1989011797A1 (en) * 1988-06-01 1989-12-14 Atlas Industries A/S Method and apparatus for the continuous hydrolyzing of keratinaceous materials
US5772968A (en) * 1996-07-03 1998-06-30 Sunrise, Inc. Apparatus and method for hydrolyzing keratinaceous material
EP0870433A1 (de) * 1997-04-10 1998-10-14 Dupps Europe B.V. Vorrichtung und Verfahren zur Inaktivierung von tierischen Produkten
WO1998048853A2 (de) * 1997-04-26 1998-11-05 Goeldner Helmut Verfahren zur behandlung von kontaminierten, insbesondere infizierten materialien
EP1021958A1 (de) * 1999-01-25 2000-07-26 S.I.C.IT. S.p.A. Chemische Hydrolyse von proteinhaltigen Brühen, tierischen Abfallstoffen und Abfallstoffen von tierischen Organen
US6174551B1 (en) 1998-02-12 2001-01-16 Griffin Industries, Inc. Process for preparing a nutritional supplement
US20040043480A1 (en) * 2002-08-30 2004-03-04 Bouldin Floyd E. Bioreactor vessel and shaft assembly
WO2004043159A1 (en) * 2002-11-07 2004-05-27 The Texas A & M University System Process for solubilizing protein
WO2006105959A1 (en) * 2005-04-06 2006-10-12 Vomm Chemipharma S.R.L. Process and plant for the treatment of vegetable protein materials
BE1016629A3 (nl) * 2005-06-06 2007-03-06 Sfinc Nv Werkwijze en inrichting voor verwerken van dierlijk slachtafval.
US7705116B2 (en) 2002-11-07 2010-04-27 Texas A&M University System Method and system for solubilizing protein
US10130112B2 (en) 2012-12-14 2018-11-20 Innovative Protein Holding, Llc. Method of making an animal food product by customizing the amino acid profile, increasing usable energy levels, and improving digestibility, and compositions of the method
US10322977B2 (en) * 2013-10-15 2019-06-18 Gidichem Co., Ltd. Animal hair waste treating apparatus and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU193037B (en) * 1983-04-22 1987-08-28 Mihaly Hegedues Method for producing fodder additive and fodder from by-products containing keratine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565282A (en) * 1920-08-16 1925-12-15 Mabee Patents Corp Process and apparatus for treating vegetable substances
US1735392A (en) * 1923-08-06 1929-11-12 Stanley Hiller Inc Apparatus for cooking materials
GB450718A (en) * 1935-05-09 1936-07-23 George Porteus Improvements in or relating to machines or apparatus for the production of cattle food, poultry food and the like
US2065141A (en) * 1934-01-20 1936-12-22 Edgar T Meakin Method of consolidating moldable materials
US2681871A (en) * 1951-02-16 1954-06-22 Sam M Nickey Jr Method and apparatus for hydrolyzing cellulosic materials
US2702245A (en) * 1949-01-27 1955-02-15 Russel Burger Conversion of feathers
US2739086A (en) * 1952-06-14 1956-03-20 Tennessee Coal & Iron Division Method and apparatus for hydrolyzing cellulosic materials
US3263592A (en) * 1963-11-22 1966-08-02 Fmc Corp Apparatus for processing fatcontaining solids

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565282A (en) * 1920-08-16 1925-12-15 Mabee Patents Corp Process and apparatus for treating vegetable substances
US1735392A (en) * 1923-08-06 1929-11-12 Stanley Hiller Inc Apparatus for cooking materials
US2065141A (en) * 1934-01-20 1936-12-22 Edgar T Meakin Method of consolidating moldable materials
GB450718A (en) * 1935-05-09 1936-07-23 George Porteus Improvements in or relating to machines or apparatus for the production of cattle food, poultry food and the like
US2702245A (en) * 1949-01-27 1955-02-15 Russel Burger Conversion of feathers
US2681871A (en) * 1951-02-16 1954-06-22 Sam M Nickey Jr Method and apparatus for hydrolyzing cellulosic materials
US2739086A (en) * 1952-06-14 1956-03-20 Tennessee Coal & Iron Division Method and apparatus for hydrolyzing cellulosic materials
US3263592A (en) * 1963-11-22 1966-08-02 Fmc Corp Apparatus for processing fatcontaining solids

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369802A1 (fr) * 1976-11-08 1978-06-02 Ibec Ind Procede d'hydrolyse de matieres keratiniques
US4172073A (en) * 1976-11-09 1979-10-23 Chemetron Corporation Method for the preparation of water-soluble keratinaceous protein using saturated steam and water
US4231926A (en) * 1978-12-11 1980-11-04 Rowland Retrum Method and apparatus for hydrolyzing keratinaceous material
US4378311A (en) * 1978-12-11 1983-03-29 Rowland Retrum Method for hydrolyzing keratinaceous material
US4497733A (en) * 1980-10-15 1985-02-05 Rowland Retrum Apparatus for hydrolyzing keratinaceous material
EP0070600A1 (de) * 1981-07-17 1983-01-26 Stork Duke B.V. Verfahren zur Verarbeitung von Federn zu Pulver und Vorrichtung zur Ausführung des besagten Verfahrens
WO1989011797A1 (en) * 1988-06-01 1989-12-14 Atlas Industries A/S Method and apparatus for the continuous hydrolyzing of keratinaceous materials
US5008375A (en) * 1988-06-01 1991-04-16 Atlas Industries A/S Method for a continuous hydrolyzing of keratinaceous materials
US5772968A (en) * 1996-07-03 1998-06-30 Sunrise, Inc. Apparatus and method for hydrolyzing keratinaceous material
EP0870433A1 (de) * 1997-04-10 1998-10-14 Dupps Europe B.V. Vorrichtung und Verfahren zur Inaktivierung von tierischen Produkten
WO1998048853A2 (de) * 1997-04-26 1998-11-05 Goeldner Helmut Verfahren zur behandlung von kontaminierten, insbesondere infizierten materialien
WO1998048853A3 (de) * 1997-04-26 1999-02-04 Helmut Goeldner Verfahren zur behandlung von kontaminierten, insbesondere infizierten materialien
US6174551B1 (en) 1998-02-12 2001-01-16 Griffin Industries, Inc. Process for preparing a nutritional supplement
EP1021958A1 (de) * 1999-01-25 2000-07-26 S.I.C.IT. S.p.A. Chemische Hydrolyse von proteinhaltigen Brühen, tierischen Abfallstoffen und Abfallstoffen von tierischen Organen
US20040043480A1 (en) * 2002-08-30 2004-03-04 Bouldin Floyd E. Bioreactor vessel and shaft assembly
US7449330B2 (en) * 2002-08-30 2008-11-11 Bouldin Corporation Bioreactor vessel and shaft assembly
WO2004043159A1 (en) * 2002-11-07 2004-05-27 The Texas A & M University System Process for solubilizing protein
US20040152881A1 (en) * 2002-11-07 2004-08-05 The Texas A&M University System Process for solubilizing protein
US7705116B2 (en) 2002-11-07 2010-04-27 Texas A&M University System Method and system for solubilizing protein
EP2269470A1 (de) * 2002-11-07 2011-01-05 The Texas A&M University System Verfahren zur Solubilisierung von Protein
WO2006105959A1 (en) * 2005-04-06 2006-10-12 Vomm Chemipharma S.R.L. Process and plant for the treatment of vegetable protein materials
BE1016629A3 (nl) * 2005-06-06 2007-03-06 Sfinc Nv Werkwijze en inrichting voor verwerken van dierlijk slachtafval.
US10130112B2 (en) 2012-12-14 2018-11-20 Innovative Protein Holding, Llc. Method of making an animal food product by customizing the amino acid profile, increasing usable energy levels, and improving digestibility, and compositions of the method
US10322977B2 (en) * 2013-10-15 2019-06-18 Gidichem Co., Ltd. Animal hair waste treating apparatus and method

Also Published As

Publication number Publication date
BE724897A (de) 1969-05-16
FR1594142A (de) 1970-06-01
DK141521B (da) 1980-04-14
DE1810032A1 (de) 1969-06-19
DE1810032B2 (de) 1976-08-05
DK141521C (de) 1980-09-29
NL6816803A (de) 1969-06-10
GB1245150A (en) 1971-09-08
IT954023B (it) 1973-08-30
CH493208A (de) 1970-07-15

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