EP0629355B1 - Procédé de traitement de déchets sous forme de tiges de filtres, cigarettes à filtres ou analogue - Google Patents

Procédé de traitement de déchets sous forme de tiges de filtres, cigarettes à filtres ou analogue Download PDF

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Publication number
EP0629355B1
EP0629355B1 EP94105037A EP94105037A EP0629355B1 EP 0629355 B1 EP0629355 B1 EP 0629355B1 EP 94105037 A EP94105037 A EP 94105037A EP 94105037 A EP94105037 A EP 94105037A EP 0629355 B1 EP0629355 B1 EP 0629355B1
Authority
EP
European Patent Office
Prior art keywords
filter
inert
process according
liquid
measure
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.)
Expired - Lifetime
Application number
EP94105037A
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German (de)
English (en)
Other versions
EP0629355A1 (fr
Inventor
Karsten Dipl.-Ing. Keller
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.)
Cerdia Produktions GmbH
Original Assignee
Rhone Poulenc Rhodia 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 Rhone Poulenc Rhodia AG filed Critical Rhone Poulenc Rhodia AG
Publication of EP0629355A1 publication Critical patent/EP0629355A1/fr
Application granted granted Critical
Publication of EP0629355B1 publication Critical patent/EP0629355B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/36—Removing papers or other parts from defective cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters

Definitions

  • the present invention relates to a method for processing Waste material in the form of filter rods, filter cigarettes and the like, the Filter material with internal cavities accessible from the outside and at least contain another material component, especially paper and tobacco.
  • filter tow stripes can consist, for example, of cellulose acetate or polypropylene filaments.
  • the Filter tow strips are pulled from a bale or stack and on one Filter rod machine processed into filter strands covered with paper, after which individual filter rods are finally produced by cutting the filter strands will.
  • the filter rods are cylindrical units encased in paper Length of about 66 to 150 mm and a diameter of e.g. 4 mm to 10 mm.
  • Each filter rod usually contains enough material for four or six Filter pieces or filter plugs, which are later made using a cigarette manufacturing machine attached to tobacco rods to produce filter cigarettes.
  • US-A-4 457 317 discloses a method for removing wrapping paper described by cigarette filter rods, in which the waste or committee of Cigarette filter rods up to the melting point of the thermoplastic adhesive, the the paper wrapping holds together, is heated. Then the Paper wrappings separated from the filter pieces or filter rods. Then the waste is used to heat and separate the paper wrappers from the filter material is flowed with a heated gas, whereby the adhesive liquefied by the action of heat and the paper wrappings of peel off the cellulose acetate fiber material. Because of the different weights or by the different shape of the cellulose acetate material and the enveloping Paper can be used to separate and sort these two Perform components in the airflow because the paper is from the airflow farther than the heavier filter material is transported upwards.
  • Cigarette waste arises from the cigarette industry it is known that in the manufacture of Cigarette waste arises.
  • the waste cigarettes are therefore, for example, on Cigarette wrapping paper cut open and the tobacco mechanically cut from the Cigarette tube removed. This measure allows the recovery of the valuable tobacco, but not the recovery of the valuable Filter material, for example cellulose acetate.
  • the invention has for its object a method of the beginning Specify the type described, in a simple technical manner and under economic process management enables the valuable filter materials, especially in the form of cellulose acetate.
  • the method according to the invention is carried out in a pressure vessel.
  • a pressure vessel is essentially a heatable pressure vessel with preferably mechanical agitator.
  • a suitably designed compressor used, which builds up, for example, a gas pressure of 10 bar the liquid, which is preferably water, in the pressure vessel to saturate with the gas, especially air and / or carbon dioxide.
  • the liquid which is preferably water
  • a closable opening is provided on the pressure vessel which the waste material can be imported.
  • the saturation of the liquid with the gas can, as already stated, take place under pressure. It can be is a partial saturation, saturation or supersaturation. Alternatively, the Measure of partial saturation, saturation or supersaturation also in an upstream Procedural measure outside the pressure vessel in one other container. If necessary, already outside of Pressure vessel the waste material are introduced into the liquid.
  • the liquid used for Separation is used in the pressure vessel, compared to the filter material and preferably also to be separated from the others Material components largely inert.
  • a gas inert to the filter material, preferably also compared to the other material components to be separated.
  • the waste material becomes the liquid supplied, if it is not already included.
  • the resulting waste material-liquid mixture becomes mixed or stirred until the filter material separates from the others Detached material components.
  • measure c in which the gas dissolved in the liquid at least partially by lowering the pressure and / or raising the temperature in Form of fine gas bubbles is released.
  • the pressure is reduced in particular of a relatively high pressure value, which is used to dissolve the gas Liquid was adjusted to a pressure above the ambient pressure or at ambient pressure.
  • the relatively high pressure can also be lowered below ambient pressure.
  • at Relaxation ie when gas dissolved in the liquid is released again should go through a pressure difference of about 10 bar.
  • the high of required pressure difference depends on various factors, so for example on the nature of the respective material and mainly of its "porosity".
  • the method according to the invention can advantageously be designed by raising the temperature during measure c) so that Hot melt adhesives, commonly used in the cigarette industry as seams used to glue the filter cover, melt and itself thus separate from the filter material. Generally one is sufficient here Temperature increase to about 80 ° C or a little more to liquefy of the hot melt adhesive to allow a regular melting point of about 80 ° C. No hot melt adhesive was used, but for example a glue in the form of polyvinyl acetate is one Temperature increase is not necessary as glue of this type is already present Dissolve the ambient temperature in water.
  • wetting agents are used in the context of the invention, then the present invention in their selection no significant restrictions.
  • These are natural and / or synthetic substances that the Reduce the surface tension of water or other liquids. These can be, for example, alkylbenzenesulfonates, alkanesulfonates, Fatty alcohol sulfates, fatty alcohol ether sulfates, fatty alcohol epoxylates and the like act (see Römpp Chemie-Lexikon, 9th ed., 1992, Vol. 6, p. 4495 ff).
  • the method according to the invention uses an "inner Flotation"the valuable filter material, e.g. cellulose acetate, safely, technically simple and economical from the other components of the waste material, such as. separate from the wrapping paper and tobacco.
  • This is the recovery of a high-purity valuable cellulose acetate for the first time become possible.
  • This can be in a suitable solvent, e.g. Acetone, can be dissolved to make it into further filaments and thus to be fed to filter tows.
  • the method according to the invention enables that the wrapping paper and any tobacco residues when reprocessing the Cigarette filter material not with e.g. the solvent acetone come. Therefore, the paper and tobacco can be disposed of in an environmentally friendly manner and be recycled.
  • the method according to the invention since the method according to the invention is not included Solvents must work, no explosion protection is required to become. This enables simple and safe operation.
  • the stake of water as a treatment liquid has the advantage that only exceptionally Dyes are released from the paper's cigarette waste, creating a high yield of valuable cellulose acetate in optimal purity can be achieved.
  • the ones commonly used in filter materials can be used easily remove plasticizers, especially in the form of triacetin.
  • the method according to the invention accordingly forms a very advantageous recycling of components of cigarette waste or cigarette filter materials, at which practically all of the original cellulose acetate in highly pure form is recovered.
  • Water is used as the liquid in a pressure vessel, which is heated to 95 ° C and placed under a pressure of 11 bar (absolute) and thus saturated.
  • the pressure vessel has a volume of 300 l. 290 l of water and 15 kg of waste material are filled. It is provided with a conventional mechanical stirrer of the "Interprop" type from Ekato Rlick- und Mischtechnik GmbH, Schopfheim.
  • the waste material is introduced into this pressure vessel together with the water via a lock.
  • the waste material is then stirred in the water heated to 95 ° C. until paper and tobacco residues have detached from the filter material based on cellulose acetate.
  • the stirring takes place at a stirrer speed of 130 rpm.
  • the warm water causes the hot-melt adhesive to dissolve.
  • triacetin is dissolved out.
  • the pressure in the pressure vessel is then reduced from 11 bar (absolute) to ambient pressure (relaxation rate in bar / min: 1.2), so that air bubbles form on the surface of the materials to be separated and in the interior of the filter material.
  • the temperature remains at around 95 ° C.
  • a mechanical stirrer is then used to ensure that the air bubbles on the outer surface of the materials to be separated are knocked off.
  • the air bubbles remaining inside the filter material cause the filter material to rise and thus separate from the accompanying materials after the stirring has been stopped.
  • the sinking material components ie the paper and the tobacco, can be removed at the bottom of the pressure vessel.
  • the cellulose acetate filter material can then be washed to remove any impurities. Then it is mechanically dehumidified and then dried.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (11)

  1. Procédé de traitement de déchets sous forme de tiges de filtres, cigarettes à filtres ou analogue, qui comprennent du matériau de filtre avec des cavités intérieures accessibles par l'extérieur et au moins un autre composant du matériau, en particulier du papier et du tabac, pour lequel sont exécutées les étapes du procédé suivantes :
    a) dans un liquide largement inerte par rapport au matériau du filtre, ledit liquide se trouvant dans un récipient de pression, est mis en solution un gaz inerte par rapport au matériau du filtre, les déchets se trouvant déjà dans le liquide inerte ou étant amenés après dissolution du gaz inerte,
    b) le mélange liquide-déchets est remué jusqu'à ce que le matériau du filtre se soit séparé des autres composants du matériau,
    c) suite à cela, le gaz inerte mis en solution dans le liquide est libéré au moins en partie grâce à une diminution de la pression et / ou une augmentation de la température, sous la forme de fines petites bulles de gaz et
    d) les fines petites bulles de gaz formées sur la surface des autres composants du matériau devant être séparés, sont éliminées, ou la formation des fines petites bulles de gaz est empêchée en ce que lors du déroulement du procédé, avant l'exécution de la mesure c), est ajouté un agent mouillant agissant de manière sélective qui augmente tellement la mouillabilité de la surface des autres composants du matériau, qu'il ne se forme pas de fines petites bulles de gaz sur ladite surface lors de l'exécution de la mesure c),
    les mesures ci-dessus ayant pour conséquence que le matériau du filtre à l'intérieur du liquide inerte monte en raison des petites bulles contenues dans ses cavités intérieures et que les autres composants du matériau devant être séparés coulent en raison de leur comportement de flottaison différent, ce qui conduit à la séparation du matériau du filtre et des autres composants du matériau.
  2. Procédé selon la revendication 1, caractérisé en ce que le gaz lors de la mesure a) est mis en solution dans le liquide inerte par l'intermédiaire d'une augmentation de pression.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le gaz inerte lors de la mesure a) est mis en solution dans le liquide inerte par l'intermédiaire d'une diminution de la température.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le liquide inerte est sous-saturé, saturé ou sur-saturé avec le gaz inerte.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que de l'eau est employée comme liquide inerte.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que de l'air et / ou du dioxyde de carbone sont employés comme gaz inerte.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le matériau du filtre se compose principalement d'acétocellulose ou de polypropylène.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que les petites bulles de gaz libres sont, lors de la mesure d), réduites mécaniquement, en particulier grâce au remuage.
  9. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la mouillabilité des autres composants du matériau devant être séparés du matériau du filtre est augmentée grâce à l'ajout d'agents mouillants lors de la mesure d), de telle sorte qu'ainsi les bulles de gaz libres formées sur la surface des autres composants du matériau sont éliminées.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que le liquide inerte lors de la mesure b) est échauffé au moins à 80 °C, afin de faciliter en particulier la séparation des divers composants du déchet.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que dans le cas de l'eau comme liquide inerte, la pression différentielle entre les mesures a) et c) est ajustée à 10 bars.
EP94105037A 1993-06-16 1994-03-30 Procédé de traitement de déchets sous forme de tiges de filtres, cigarettes à filtres ou analogue Expired - Lifetime EP0629355B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4319958 1993-06-16
DE4319958A DE4319958C1 (de) 1993-06-16 1993-06-16 Verfahren zum Aufbereiten von Abfallmaterial in Form von Filterstäben, Filterzigaretten und dergleichen

Publications (2)

Publication Number Publication Date
EP0629355A1 EP0629355A1 (fr) 1994-12-21
EP0629355B1 true EP0629355B1 (fr) 1998-06-03

Family

ID=6490469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105037A Expired - Lifetime EP0629355B1 (fr) 1993-06-16 1994-03-30 Procédé de traitement de déchets sous forme de tiges de filtres, cigarettes à filtres ou analogue

Country Status (6)

Country Link
US (1) US5402893A (fr)
EP (1) EP0629355B1 (fr)
JP (1) JPH0829073B2 (fr)
CA (1) CA2125911C (fr)
DE (2) DE4319958C1 (fr)
PL (1) PL174406B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1008794A3 (fr) * 1994-10-27 1996-08-06 Solvay Procede de separation de materiaux.
US6984358B2 (en) * 2002-09-13 2006-01-10 Lockheed Martin Corporation Diffusion bonding process of two-phase metal alloys
PL216538B1 (pl) 2008-01-11 2014-04-30 Int Tobacco Machinery Poland Zespół do perforowania elementów prętopodobnych, zwłaszcza papierosów
PL222076B1 (pl) 2010-03-11 2016-06-30 Int Tobacco Machinery Poland Spółka Z Ograniczoną Odpowiedzialnością Sposób otwierania opakowania papierosa i zespół do otwierania opakowań papierosów maszyny do odzyskiwania tytoniu z papierosów uszkodzonych lub niepełnowartościowych
US9499772B2 (en) * 2013-03-13 2016-11-22 Battelle Energy Alliance, Llc Methods of decontaminating surfaces and related compositions
JP7306028B2 (ja) * 2019-04-05 2023-07-11 凸版印刷株式会社 吸引物品回収支援システム、吸引物品回収支援方法

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GB1058914A (en) * 1965-06-14 1967-02-15 Outokumpu Oy Froth flotation apparatus
US3433356A (en) * 1966-08-11 1969-03-18 Engelhard Min & Chem Recovery of wire from plastic insulation
US3615997A (en) * 1968-06-19 1971-10-26 Reynolds Tobacco Co R Method of making a reconstituted cigarette filter
US3577999A (en) * 1969-07-14 1971-05-11 Reynolds Tobacco Co R Impact apparatus and method
JPS563169B2 (fr) * 1973-07-21 1981-01-23
GB1444831A (en) * 1973-12-08 1976-08-04 Mitsui Mining & Smelting Co Method for separation of a mixture of a polyester and a cellulose derivative
US4040949A (en) * 1973-12-08 1977-08-09 Mitsui Mining & Smelting Co., Ltd. Method for separation of mixture of polyester and cellulose derivative
JPS5119803A (en) * 1974-08-09 1976-02-17 Mitsui Mining & Smelting Co Horiramineetoshino shoriho
US4191199A (en) * 1978-04-03 1980-03-04 Brown & Williamson Tobacco Corporation Apparatus and process for reclaiming tobacco
US4278100A (en) * 1978-10-23 1981-07-14 Philip Morris Incorporated Method and apparatus for separating tobacco from rejected cigarettes
US4440635A (en) * 1979-03-29 1984-04-03 Haigh M. Reiniger Process and apparatus for the recovery of cellulose fibers from paper-plastic mixtures
US4270926A (en) * 1979-06-19 1981-06-02 Atlantic Richfield Company Process for removal of sulfur and ash from coal
CH640154A5 (en) * 1979-07-24 1983-12-30 Dytan Stahl & Maschbau Ag Process for separating a mixture of granular bodies of different structure
DE3108913A1 (de) * 1981-03-09 1982-09-23 Ruhrkohle Ag, 4300 Essen Verfahren und einrichtung zur aufbereitung aschereicher kohleschlaemme durch flotation, insbesondere zur aufbereitung schwierig zu flotierender gas- und gasflammkohle
US4457317A (en) * 1982-08-09 1984-07-03 Eastman Kodak Company Method of removal of paper wraps from cigarette filter rods
US5116487A (en) * 1990-07-27 1992-05-26 University Of Kentucky Research Foundation Froth flotation method for recovery of ultra-fine constituent
DE4132938A1 (de) * 1991-10-04 1993-04-08 Kloeckner Humboldt Deutz Ag Verfahren und anlage zur nassmechanischen sortierung von altkunststoffgemischen

Also Published As

Publication number Publication date
CA2125911A1 (fr) 1994-12-17
DE59406109D1 (de) 1998-07-09
PL174406B1 (pl) 1998-07-31
EP0629355A1 (fr) 1994-12-21
DE4319958C1 (de) 1994-07-21
US5402893A (en) 1995-04-04
PL303819A1 (en) 1995-01-09
JPH078252A (ja) 1995-01-13
JPH0829073B2 (ja) 1996-03-27
CA2125911C (fr) 1997-02-04

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