WO2010143316A1 - Additif piégeant les halogènes - Google Patents

Additif piégeant les halogènes Download PDF

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Publication number
WO2010143316A1
WO2010143316A1 PCT/JP2009/064077 JP2009064077W WO2010143316A1 WO 2010143316 A1 WO2010143316 A1 WO 2010143316A1 JP 2009064077 W JP2009064077 W JP 2009064077W WO 2010143316 A1 WO2010143316 A1 WO 2010143316A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
weight
halogen
urea
recycling
Prior art date
Application number
PCT/JP2009/064077
Other languages
English (en)
Japanese (ja)
Inventor
栄一 猪野
木村　皓一
Original Assignee
株式会社オプティ
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 株式会社オプティ filed Critical 株式会社オプティ
Publication of WO2010143316A1 publication Critical patent/WO2010143316A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/21—Urea; Derivatives thereof, e.g. biuret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46—Materials comprising a mixture of inorganic and organic materials
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention relates to a halogen collecting additive, and more specifically, to an additive that collects and detoxifies halogen substances that cause corrosion of a recycling apparatus in a process for recycling waste plastics. Is.
  • Plastics made from petroleum, a fossil resource, are produced in large quantities.
  • waste plastic is incinerated, a large amount of greenhouse gas is generated as CO2. Since a large amount of carbon is generated, recycling (recycling) is important to prevent global warming.
  • recycling of waste plastic material recycling
  • pyrolysis oil chemical recycling
  • Recycling is to sort waste plastics by type, heat melt, pelletize them, and use them again as raw materials for molded products. This recycling is the preferred recycling method with the least environmental impact in terms of recycling plastics. However, since recycling cannot be performed completely, the inclusion of polyvinyl chloride or brominated flame retardants as impurities is avoided. Absent. For this reason, corrosive hydrogen halide gas is generated at the time of hot melting, making long-term stable operation of the regenerator difficult.
  • Pyrolysis oil conversion is a recycling method in which waste plastic is heated until it is decomposed, the cracked gas generated is cooled and liquefied, and this liquid is used as fuel to return the plastic to petroleum.
  • This method does not require much sorting and can treat several types of waste plastic, but corrosive hydrogen halide gas generated from mixed polyvinyl chloride and brominated flame retardants makes it difficult to operate the regenerator for a long period of time.
  • a countermeasure against halogen is indispensable.
  • Patent Documents 1 to 3 As a method for treating halogen (chlorine or the like) in PVC, for example, there are Patent Documents 1 to 3 below.
  • Patent Document 1 discloses a method in which a halogen-containing polymer is heated under pressure in an aqueous solution containing an inorganic additive such as an alkali compound and removed as hydrogen halide.
  • an inorganic additive such as an alkali compound
  • Patent Document 2 discloses a method of adding an alkali metal hydroxide or the like and thermally decomposing at 250 to 700 ° C. to produce an alkali metal halogen compound.
  • this method has a problem that it requires energy to react at a high temperature and uses an inert carrier gas for transferring the produced halogen compound to the outside of the system, so that the cost is high and the versatility is poor.
  • Patent Document 3 discloses a method in which calcium oxide (CaO) is mixed with PVC, ground at room temperature (mechanochemical treatment), and dechlorinated.
  • CaO calcium oxide
  • PVC ground at room temperature
  • dechlorinated dechlorinated
  • the present invention has an object to provide a halogen-collecting additive that can easily collect halogen at a low cost without adding a special device to a conventional recycling apparatus. To do.
  • a halogen collecting additive including a mixture comprising a combination of urea, hydroxide, and metal stearate, and completed the present invention. I came to let you.
  • the halogen-collecting additive includes 49.5 parts by weight or more and 75 parts by weight or less of urea, 20 parts by weight or more and 49.5 parts by weight or less of calcium, magnesium, or barium. It is characterized by containing 100 parts by weight of a mixture comprising a hydroxide comprising at least a seed and 1 to 5 parts by weight of a metal stearate.
  • the halogen-collecting additive is in the form of a powder having a particle size in the range of 0.01 mm to 5 mm.
  • This embodiment relates to a halogen collection additive in waste plastic recycling.
  • the halogen scavenging additive according to the present invention is composed of one or more of 49.5 parts by weight to 80 parts by weight of urea, 20 parts by weight to 49.5 parts by weight of calcium, magnesium and barium. It contains 100 parts by weight of a mixture comprising a hydroxide and a metal stearate of 1 to 5 parts by weight. When this mixture is evenly applied (sprayed) to waste plastics including polyvinyl chloride (PVC) and brominated flame retardant-containing plastics and heated, the halogen can be efficiently collected and recycled. Long-term stable operation.
  • PVC polyvinyl chloride
  • urea (CH 4 N 2 O) can be decomposed at about 133 ° C. when heated to produce ammonia (NH 3 ).
  • the produced ammonia is combined with hydrogen chloride (HCl) generated by heating polyvinyl chloride [(CH 2 ⁇ CHCl) n ] to become ammonium chloride (NH 4 Cl), and is therefore used as a chlorine scavenger. be able to.
  • HCl hydrogen chloride
  • ammonia produced from urea binds to hydrogen bromide (HBr) generated from brominated flame retardant contained in the waste plastic and becomes ammonium bromide (NH 4 Br). It can also be used as a collecting agent.
  • polyvinyl chloride PVC
  • PVC polyvinyl chloride
  • NH 4 Cl ammonium chloride
  • urea alone has a large halogen trapping effect, it acts from a low temperature, so that the ammonium halide generated in the initial stage of heating may be mixed into the waste plastic again with the heating time. Therefore, by simultaneously adding one or more hydroxides of calcium, magnesium, and barium, the ammonium halide once generated is stabilized, and the halide is collected by generating a halide. The effect can be improved.
  • calcium hydroxide is more preferable from the viewpoint of economy and easy handling.
  • urea acts from a low temperature state
  • urea is hygroscopic, it is easy to granulate and it is difficult to maintain a fine powder state. Therefore, the present inventors have studied a drug that maintains a fine powder state without impairing the halogen trapping effect of urea, and as a result, found that a fine powder state can be maintained by mixing an appropriate amount of a metal stearate. .
  • the metal stearate salt is not limited, but is preferably at least one of zinc stearate and calcium stearate.
  • Zinc stearate prevents the recycled plastic from adhering to the metal of the regenerator. Therefore, it is more preferable, and further, the combined use of these is also preferable.
  • urea when the weight of urea, hydroxide, and metal stearate contained is 100 parts by weight, urea is 49.5 parts by weight to 75 parts by weight, calcium, magnesium 20 to 49.5 parts by weight of a hydroxide composed of one or more kinds of barium, 1 to 5 parts by weight of a metal stearate, preferably 55 to 75 parts by weight of urea. Not more than parts by weight, not less than 24 parts by weight and not more than 44 parts by weight of hydroxide, and 1 to 5 parts by weight of metal stearate.
  • the urea content is 49.5 parts by weight or more
  • the halogen trapping effect can be sufficiently exerted, and when the urea content is 55 parts by weight or more, this effect becomes more remarkable.
  • the hydroxide 20 parts by weight or more it is possible to sufficiently prevent remixing of the ammonium halide, and by making it 24 parts by weight or more, this effect becomes more remarkable.
  • the hydroxide is 49.5 parts by weight or less, the effect of urea can be sufficiently exerted, and if it is 44 parts by weight or less, this effect becomes more remarkable.
  • the mixture may contain an inevitable impurity or a small amount of an additive that does not interfere with the effect.
  • the halogen collecting additive according to the present embodiment is preferably in the form of powder, and as a number, it is preferable that the particle size of 80% or more is in the range of 0.01 mm or more and 5 mm or less.
  • the particle size of the powder is 0.01 mm or more, there is an effect that the production cost of the powder can be suppressed, and when it is 5 mm or less, there is an effect that it can be applied uniformly to the waste plastic.
  • the generated pyrolysis gas was collected in the aqueous phase and the amount of chlorine was quantified.
  • the amount of chlorine in the pyrolysis gas in Examples and Comparative Examples is shown in Table 1.
  • the present invention can be widely used in the recycling of waste plastics, especially in industrial applications such as recycling (material recycling) and pyrolysis oil (chemical recycling), and enables long-term stable operation of the recycling apparatus. This greatly contributes to the prevention of global warming.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Inorganic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un additif destiné à piéger un halogène de manière pratique et à faible coût dans un appareil de recyclage conventionnel sans avoir besoin d'ajouter à l'appareil de recyclage une quelconque unité spécialisée. L'invention concerne spécifiquement un additif piégeant les halogènes comprenant 100 parties en poids d'un mélange composé de 49,5 à 75 parties en poids, inclus, d'urée, de 20 à 49,5 parties en poids, inclus, d'un hydroxyde d'au moins un élément choisi parmi le calcium, le magnésium et le baryum et de 1 à 5 parties en poids, inclus, d'un sel métallique de l'acide stéarique. Dans l'additif piégeant les halogènes, le mélange se trouve de préférence sous la forme d'une poudre ayant une taille particulaire de 0,01 à 5 mm inclus.
PCT/JP2009/064077 2009-06-09 2009-08-03 Additif piégeant les halogènes WO2010143316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009138727A JP4381475B1 (ja) 2009-06-09 2009-06-09 ハロゲン捕集添加剤
JP2009-138727 2009-06-09

Publications (1)

Publication Number Publication Date
WO2010143316A1 true WO2010143316A1 (fr) 2010-12-16

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Country Status (2)

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JP (1) JP4381475B1 (fr)
WO (1) WO2010143316A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7219904B1 (ja) 2022-09-22 2023-02-09 株式会社セレン プラスチック再生加工改質剤及び再生プラスチックの製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49112979A (fr) * 1973-03-01 1974-10-28
JPH07188674A (ja) * 1993-12-27 1995-07-25 Mitsubishi Chem Corp ハロゲン含有合成樹脂の熱分解方法
JPH0892412A (ja) * 1994-09-22 1996-04-09 Toshiba Corp プラスチックの再資源化方法
JP2000169858A (ja) * 1998-12-07 2000-06-20 Hitachi Ltd 廃プラスチックの油化方法及び油化装置
JP2000290424A (ja) * 1999-04-07 2000-10-17 Matsushita Electric Ind Co Ltd 臭素系難燃剤を含有する熱可塑性樹脂組成物の再生処理方法
JP2001145862A (ja) * 1999-11-22 2001-05-29 Miyoshi Oil & Fat Co Ltd 焼却灰の無害化処理方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49112979A (fr) * 1973-03-01 1974-10-28
JPH07188674A (ja) * 1993-12-27 1995-07-25 Mitsubishi Chem Corp ハロゲン含有合成樹脂の熱分解方法
JPH0892412A (ja) * 1994-09-22 1996-04-09 Toshiba Corp プラスチックの再資源化方法
JP2000169858A (ja) * 1998-12-07 2000-06-20 Hitachi Ltd 廃プラスチックの油化方法及び油化装置
JP2000290424A (ja) * 1999-04-07 2000-10-17 Matsushita Electric Ind Co Ltd 臭素系難燃剤を含有する熱可塑性樹脂組成物の再生処理方法
JP2001145862A (ja) * 1999-11-22 2001-05-29 Miyoshi Oil & Fat Co Ltd 焼却灰の無害化処理方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7219904B1 (ja) 2022-09-22 2023-02-09 株式会社セレン プラスチック再生加工改質剤及び再生プラスチックの製造方法
JP2024045914A (ja) * 2022-09-22 2024-04-03 株式会社セレン プラスチック再生加工改質剤及び再生プラスチックの製造方法

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JP4381475B1 (ja) 2009-12-09
JP2010285487A (ja) 2010-12-24

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