EP0364545A1 - Procede et installation d'extraction d'huiles et de graisses de produits naturels - Google Patents

Procede et installation d'extraction d'huiles et de graisses de produits naturels

Info

Publication number
EP0364545A1
EP0364545A1 EP89903986A EP89903986A EP0364545A1 EP 0364545 A1 EP0364545 A1 EP 0364545A1 EP 89903986 A EP89903986 A EP 89903986A EP 89903986 A EP89903986 A EP 89903986A EP 0364545 A1 EP0364545 A1 EP 0364545A1
Authority
EP
European Patent Office
Prior art keywords
cross
cell disruption
flow filtration
oil
water
Prior art date
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.)
Withdrawn
Application number
EP89903986A
Other languages
German (de)
English (en)
Inventor
Walter Gresch
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.)
Bucher Guyer AG
Original Assignee
Bucher Guyer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bucher Guyer AG filed Critical Bucher Guyer AG
Publication of EP0364545A1 publication Critical patent/EP0364545A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/885—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices with internal recirculation through the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B01D29/945—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/147—Microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/149—Multistep processes comprising different kinds of membrane processes selected from ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B1/00—Production of fats or fatty oils from raw materials
    • C11B1/02—Pretreatment
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B1/00—Production of fats or fatty oils from raw materials
    • C11B1/10—Production of fats or fatty oils from raw materials by extracting

Definitions

  • the invention relates to a method and a plant for the extraction of oils and fats from natural products by extraction with water as a means of transport.
  • Oils and fats from natural products e.g. Oilseeds such as sunflowers and soybeans can be obtained by pressing, extraction or melting. The oilseeds are cleaned and chopped for pretreatment. Depending on the oil content, one of the methods mentioned then follows, and extraction can be followed by extraction.
  • the extraction process uses water or a gasoline fraction as a solvent. Gasoline fractions are flammable and explosive. They have to be expelled from the oil and extraction residues with great effort, although the remaining residual solvent content can still be harmful to health. The aim is therefore to move away from these solvents and primarily use water for the extraction.
  • the invention has for its object to provide a method and a system of the type mentioned, which avoids the disadvantages mentioned and ensures efficient, environmentally friendly oil production with low operating costs and high yields.
  • this object is achieved in that the raw material is processed at least by comminution and cell disruption, and the oil which is released is at least partially emulsified by adding water, and the separation of the oil / water mixture from insoluble protein and cell material by means of crossflow filtration is carried out.
  • pressure homogenizers that generate high cavitation forces are used.
  • the physical cell disruption can also take place at least in part with the aid of toothed rotor-stator colloid mills. It is expedient to carry out the cell disruption in one or two passes through the cell disruption device.
  • the enzymatic cell disruption takes place at least partially by means of cellulase enzymes.
  • the enzymatic or physical cell disruption and / or the filtering ability can be promoted by means of pectinase, amylase or proteinase enzymes.
  • the pH is adjusted to a value which corresponds to the minimum protein solubility.
  • the mass transfer of the oil to the membrane of the crossflow filtration takes place at least in part by forming emulsions with water as a carrier. Due to the intensive treatment of the raw material by physically disintegrating the cells as much as possible during the preparation, it makes sense to go as far as to emulsify at the same time as the cell disruption.
  • the filtration capacity is increased if cross-flow filtration for separating the oil / water mixture is carried out by means of coarse filtration when emulsion drops form in the range of> 0.5 ⁇ m.
  • the cross-flow filtration is carried out at a temperature of 45 to 65 ° C.
  • Cross-flow filtration with diafiltration is used to improve the yield. It is particularly expedient, in the case of continuous operation, to carry out the diafiltration at least partially in parallel with the filtration process. According to a further advantageous feature of the invention, the cell disruption of the raw material is carried out at least partially during cross-flow filtration.
  • the cell disruption in the circulation circuit of the cross-flow filtration device is carried out by combining the circulation pump with a toothed rotor-stator colloid mill in several passes or analogously by means of a colloid mill or rotor-stator cell disruption mill connected in series with the circulation pump.
  • the cell disruption takes place in a cell disruption device which is arranged in a side stream of the circulation circuit after the addition of diafiltration water to the side stream of the crossflow filtration.
  • the cell disruption device advantageously consists of a pressure homogenizer.
  • the rest of the retentate is processed into food and beverages or high-quality animal feed.
  • the water separated from the oil during emulsion separation is treated and at least partially returned to the process.
  • the residues resulting from the preparation of the raw material are mixed with the retentate of the cross-flow filtration device in a recycling press with the addition of absorbent, compressible and fibrous, flaky or granular material and the pressed liquid is returned to the process.
  • an oil / water emulsion that is stable at least for the duration of the recycling process is formed by cell disruption within the cross-flow filtration device or by adding emulsifiers.
  • the retentate of the first cross-flow filtration device is subjected to at least one second, coarser cross-flow filtration and the permeate from the second or further cross-flow filter is set up on the retentate side the first Cross flow filtration device returned.
  • the advantages achieved with the invention consist in particular in that the use of crossflow filtration according to the invention achieves an optimal separation of the oil / water mixture from the solids and an improvement in the quality of the end product with increased yield and with greatly reduced enzyme consumption.
  • the Reeycling measures which can be carried out through the use of cross-flow filtration, enable a further improvement in yield, a useful disposal of residues and operation with very low water consumption.
  • 1 is a schematic representation of the system for continuous or batch operation
  • Fig. 2 shows another embodiment of a system for continuous operation and recycling and Fig. 3 shows another embodiment with a second cross-flow filtration device.
  • the raw material to be processed which from natural products such. B. oilseeds of sunflowers or soybeans, is first pre-cleaned, optionally unveiled and fed to a processing plant 1 (Fig. 1).
  • the raw material is pre-shredded in the wet or dry state and then further shredded with a view to cell disruption.
  • the cell disruption can be carried out physically in a known manner using colloid mills, in particular using toothed rotors / stators or similar processing tools, and using homogenizers, friction rolling mills, etc.
  • the cell disruption can also be carried out enzymatically using cellulase enzymes.
  • pectinase In addition to cellulase, pectinase, amylase and proteinase enzymes can also be used to reduce viscosity and improve filterability.
  • cellulase e.g. B. for the production of diesel oil
  • chemical cell disruption The methods mentioned for disrupting the cells of the raw material can be used either individually or in combination.
  • the enzyma is used in the food sector table cell disruption processes mainly to support physical cell disruption. As a result, energy is saved when high product quality is achieved. Conversely, the predominant physical cell disruption results in a low enzyme consumption.
  • the oil contained in the raw material is preferably extracted from the raw material in combination with the cell disruption during the preparation phase by forming an oil-water emulsion.
  • water is introduced via a line 2 into the treatment plant 1, which emulsifies as a result of the intensive treatment of the raw material with the oil which is thereby released.
  • the task of forming an oil / water emulsion is, among other things, to improve the mass transfer of the oil to the membrane of the subsequent cross-flow filtration. It is important for the formation of emulsions that the cell fragments resulting from the cell disruption remain as large as possible so that the subsequent cross-flow filtration is not inhibited by clogging of the pores or by corresponding film formation on the membrane.
  • emulsifiers it is normally not necessary to add emulsifiers to improve emulsion formation. However, if emulsifiers are used, these can be added during the preparation phase or during cross-flow filtration. Subsequently or together with the cell disruption, one or more enzyme treatments can also be carried out in the treatment plant 1.
  • the pH is expediently adjusted to a value which corresponds to the minimum protein solubility, i.e. H. corresponds to the isoletric point. This measure serves to retain as much of the valuable protein as possible in the retentate of the subsequent crossflow filtration.
  • the crushed and emulsified raw material in the treatment plant 1, treated by cell disruption, is fed via a line 3 to the retentate-side circulation circuit 4 of a cross-flow filtration device 5.
  • a container 6 and a circulation pump 7 is arranged, which introduces the mixture of cell pieces and emulsified oil / water coming from the container 6 into the retentate side of the cross-flow filtration device 5.
  • the oil / water mixture of insoluble protein and cell material is separated on the membrane 8 of the crossflow filtration device 5.
  • the emulsion which mainly contains oil and water and also contains soluble proteins, is removed as permeate via a line 9 and separated in a subsequent centrifuge or another filtration device in a known manner.
  • the system according to FIG. 1 can be created for continuous as well as batch operation.
  • the cross-flow filtration device 5 can be designed as an ultra, micro or coarse filtration device. The choice is made on the basis of corresponding requirements in terms of purity, yield and permeate flux or cell disruption and emulsion formation.
  • the ultrafiltration and microfiltration is advantageously used to separate the oil / water emulsion in microemulsions with a droplet size of less than 0.1 to 0.2 mm.
  • the micro-emulsion is particularly suitable for the production of high-quality, pure products such as 3. Essence oils, coffee oil and the like. By using ultrafiltration, even more cleaning can be done save steps for the oil, so that in some cases the higher effort for micro-emulsion formation and ultrafiltration can be compensated. In such cases, the use of ultra or microfiltration can also be of interest for lower quality products.
  • ultrafiltration also retains soluble proteins in the retentate. This enables the production of soy drinks from the retentate. Since enzymes are also retained by ultra and microfiltration, this also results in savings in enzyme costs. In certain cases, e.g. B. when performing a subsequent cleavage by hydrolysis of the oil, the emulsion can even be processed completely or with only partial emulsion separation due to the purity. This reduces the cost of emulsion separation after cross-flow filtration.
  • the cross-flow filtration device 5 is advantageously designed as a coarse filtration device with a pore size> 10 ⁇ m. This achieves a high filtration performance.
  • the filtration process in the cross flow filtration device device 5 is preferably carried out at a temperature of 45 to 65 ° C. On the one hand, this achieves a high permeate performance with inexpensive plastic membranes, prevents undesired growth of microorganisms and, on the other hand, prevents product damage. By using cross flow filtration, a good filtration performance (perraeat flux) is made possible despite the presence of relatively small cell fragments.
  • the resulting protein-containing retentate residue can be used in foods, e.g. B. Soya drinks, but also to prepare high-quality feed.
  • the crossflow filtration device 5 is operated with diafiltration. This is preferably carried out in parallel with the filtration process, especially in the case of continuous oil production.
  • the water flowing off with the permeate is replaced and the solids content in the retentate is kept constant in a certain range.
  • the viscosity of the retentate which is decisive for the filtration performance, thus also remains approximately constant.
  • yields in the range of more than 99% can be achieved, which corresponds to those of the conventional oil extraction process.
  • a colloid mill combined with the circulation pump 7 is arranged in the circulation circuit 4 of the cross-flow filtration device 5 and has a fixed stator 10 and a rotating toothed rotor 11 cooperating with it.
  • the cell material coming from the treatment plant 1 and mixed with the retentate of the cross-flow filtration device 5 is ground between the stator 10 and the toothed rotor 11 of the combined circulation pump 7, physically disrupted and simultaneously emulsified.
  • the retentate circulating in the circulation circuit 4 thus predominantly contains cell material and insoluble proteins, suspended in an oil / water emulsion.
  • the circulation circuit 4 has two functions in this embodiment, namely circulation and gentle cell disruption in the combined circulation pump 7 with multiple passes. This reduces the energy requirement.
  • a colloid mill or similar device for cell disruption can also be connected in series with the circulation pump 7.
  • FIG. 1 Another possibility of physical cell disruption shown in FIG. 1 during crossflow filtration is that in a side stream 12 of the order Rolling circuit 4 is preferably arranged as a cell disruption device, an emulsifying nozzle in the form of a pressure homogenizer 13, to which the cell material is supplied by means of an upstream high-pressure pump 14. Due to the circulation, the cell disruption can take place in several passes under the action of cavitation forces.
  • the water for the diafiltration is fed to the side flow 12 of the circulation circuit 4 through a line 15. Because of the relatively low volume flow through the cell disruption device and the possibility of disrupting the cells through the given circuit in several passes, the result is a relatively low pressure required for the operation of a homogenizing nozzle and a relatively low energy consumption for the cell disruption.
  • the measures mentioned for cell disruption and emulsion formation in the treatment plant 1 and / or in the crossflow filtration device 5 can be used both individually and in combination.
  • the exemplary embodiment according to FIG. 2 shows a continuously operating system for carrying out the method according to the invention as a recycling process.
  • the processing plant 1 consists of a device 16 for the casing the oil seeds, a subsequent grinder 17 and a device 18 for fine grinding, disintegrating the cells and for forming the oil / water emulsion.
  • a pre-treatment stage 19 for treating the raw material with enzymes and for adjusting the pH is provided between the grinder 17 and the device 18.
  • the subsequent cross-flow filtration takes place in several stages by means of diafiltration in three coarse, micro or ultrafiltration devices 20 connected in parallel.
  • an emulsifying nozzle 22 or one with the Circulation pump 23 combined colloid mill can be arranged for the physical cell disruption.
  • the permeate of the coarse, micro or ultrafiltration devices 20 is fed via a manifold 24 to a further cross-flow filtration device 25 for separating the oil / water emulsion.
  • the crossflow filtration device 25 is preferably designed as an ultra or microfiltration device.
  • the crude oil separated from the water as a retentate leaves the crossflow filtration device 25 via a line 26.
  • the water flowing off as a permeate via a line 27 is at least partially returned to the process. It is expedient for the water in one of the cross-flow filtration devices 25 downstream commercial water treatment system 28 to clean beforehand.
  • the treated water reaches the respective circulation circuit 21 of the coarse, micro or ultrafiltration devices 20, where it is used for diafiltration and for emulsification.
  • Another line 31 branching off from the water treatment system 28 is provided for supplying the treatment system 1 with fresh water.
  • a treatment stage 34 for neutralizing the retentate can be arranged in line 32 in front of the recycling press 33.
  • the pods and skins of the oilseeds that occur in the processing plant 1 during the unveiling and comminution are also via a line 35 introduced into the recycling press 33.
  • rice husks, straw etc. and similar waste from other production sites such as B. Ap fel tres ter can be used.
  • the retentate supplied with the line 32 is mixed with the sleeves before or in the recycling press 33 and the resulting mixture is pressed out.
  • the squeezed liquid is returned via a line 36 to the process, preferably to the treatment plant 1 in front of the device 18.
  • the oil from the coarse, micro or ultrafiltration devices 20 must be fine and reasonably stable emulsified. This is achieved by the previous measures such as cell disruption within the crossflow filtration devices 20 and by the possible addition of emulsifiers. As a result, an emulsion is again obtained as the squeezed liquid. Solid substances in the retentate are largely retained by the sieving action of the filtration channels in the recycling press 33.
  • Horizontal batch presses are best suited as recycling presses because of the good filtering effect due to the long flow paths for the juice.
  • the solid residue from the recycling press 33 can be converted into one in a subsequent drying and briquetting device 37 process full feed.
  • the yield of the system is further improved, the retentate is usefully disposed of from the crossflow filtration device 20 and extracted with very little water consumption.
  • FIG. 3 shows a further exemplary embodiment of the invention, in which the retentate is fed to the crossflow filtration device 5 via a line 38 to a second, coarser filtering crossflow filtration device 39.
  • the permeate of the crossflow filtration device 39 is returned via a line 40 to the retentate side of the first crossflow filtration device 5.
  • the oil / water emulsion is discharged as a permeate via a line 41.
  • the first cross-flow filtration device 5 can be operated continuously as a simple, single-stage system with a strong dilution of the raw material with water. This results in an above average high membrane flux with regard to oil.
  • the highly diluted retentate from the cross-flow filtration device 5 is continuously concentrated by the cross-flow filtration device 39.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Fats And Perfumes (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Selon un procédé d'extraction d'huile de produits naturels, le matériau brut est fragmenté dans une installation de préparation (1) et traité par désintégration cellulaire. On forme avec l'huile ainsi libérée une émulsion par adjonction d'eau. Le mélange huile/eau est ensuite séparé des protéines et matériaux cellulaires insolubles dans un dispositif (5) de filtrage à courant transversal. La désintégration cellulaire et l'émulsification peuvent se faire additionnellement ou alternativement dans le dispositif (5) de filtrage à courant transversal. On obtient par ces mesures une amélioration de la qualité du produit final et une augmentation du rendement à des coûts réduits d'exploitation.
EP89903986A 1988-03-30 1989-03-29 Procede et installation d'extraction d'huiles et de graisses de produits naturels Withdrawn EP0364545A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1204/88 1988-03-30
CH1204/88A CH675730A5 (fr) 1988-03-30 1988-03-30

Publications (1)

Publication Number Publication Date
EP0364545A1 true EP0364545A1 (fr) 1990-04-25

Family

ID=4204936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89903986A Withdrawn EP0364545A1 (fr) 1988-03-30 1989-03-29 Procede et installation d'extraction d'huiles et de graisses de produits naturels

Country Status (3)

Country Link
EP (1) EP0364545A1 (fr)
CH (1) CH675730A5 (fr)
WO (1) WO1989009255A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI901135A (fi) * 1990-03-06 1991-09-07 Oeljynpuristamo Oy Foerfarande foer framstaellning av vaextoljeprodukt.
ES2046135B1 (es) * 1992-07-03 1994-09-01 Univ Santiago Compostela Tratamiento enzimatico de semillas oleaginosas para mejorar la extraccion de aceite y simultaneamente aumentar la calidad nutricional de la harina.
DE4431394C1 (de) * 1994-08-25 1996-02-15 Heilscher Karl Prof Dr Sc Verfahren zur Kaltgewinnung von Klarsaft, Trub und Öl aus Sanddornbeeren und ihre Verwendung
DE4431393C1 (de) * 1994-08-25 1996-02-15 Heilscher Karl Prof Dr Sc Verfahren zur Kaltgewinnung von Sanddornbeerenölen und Sanddornbeerenmazerat mit reduziertem Fettgehalt und ihre Verwendung
DE4431395C1 (de) * 1994-08-25 1996-02-15 Heilscher Karl Prof Dr Sc Verfahren zur Herstellung von ölhaltigen, trubstoffstabilen Halbfertigerzeugnissen aus Früchten mit ölhaltigem Fruchtfleisch, insbesondere Sanddornbeeren und ihre Verwendung
DE10339010A1 (de) * 2003-08-25 2005-03-24 Süd-Chemie AG Enzymatische Behandlung einer Masse aus Oliven oder Olivenbestandteilen
ITTV20070180A1 (it) * 2007-11-12 2009-05-13 Velo Spa Macchina di filtrazione per filtrazione tangenziale
DE102012013756A1 (de) 2011-07-13 2013-01-17 Contec Maschinenbau Klocke Gmbh Verfahren und Einrichtung zur Gewinnung von Pflanzenölen aus ölhaltigen Pflanzenprodukten
WO2020125985A1 (fr) 2018-12-20 2020-06-25 Dutch Clean Tech Group B.V. Récupération d'huile végétale à partir de sources naturelles

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Publication number Priority date Publication date Assignee Title
DE2234263C3 (de) * 1972-07-12 1980-07-31 Maizena Gmbh, 2000 Hamburg Verfahren zur ölgewinnung aus ölhaltigen Getreidekeimen
FR2443865A1 (fr) * 1978-12-11 1980-07-11 Anvar Procede et installation d'extraction de principes solubles de matieres premieres par exemple de graines
GB2127425A (en) * 1982-09-28 1984-04-11 Imp Biotechnology Extraction of vegetable oils
CH676653A5 (fr) * 1986-08-19 1991-02-28 Bucher Guyer Ag Masch
CH671322A5 (fr) * 1986-09-29 1989-08-31 Bucher Guyer Ag Masch

Non-Patent Citations (1)

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Title
See references of WO8909255A1 *

Also Published As

Publication number Publication date
WO1989009255A1 (fr) 1989-10-05
CH675730A5 (fr) 1990-10-31

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