JP2001011468A - Method for treating waste plastics - Google Patents
Method for treating waste plasticsInfo
- Publication number
- JP2001011468A JP2001011468A JP18377199A JP18377199A JP2001011468A JP 2001011468 A JP2001011468 A JP 2001011468A JP 18377199 A JP18377199 A JP 18377199A JP 18377199 A JP18377199 A JP 18377199A JP 2001011468 A JP2001011468 A JP 2001011468A
- Authority
- JP
- Japan
- Prior art keywords
- waste plastics
- coal
- plastics
- added
- coke
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Coke Industry (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コークス炉でプラ
スチックス類またはプラスチックス類を含有する廃棄物
（以下、プラスチックス類またはプラスチックス類を含
有する廃棄物を廃プラスチックス類ともいう）を処理す
る方法に関する。[0001] The present invention relates to plastics or waste containing plastics in a coke oven (hereinafter, plastics or waste containing plastics is also referred to as waste plastics). How to process.
【０００２】ここで、プラスチックス類とは、例えば、
ポリエチレンテレフタレート（ＰＥＴ）をはじめとする
ポリエチレン、ポリプロピレン、ポリスチレンおよび塩
化ビニル等のプラスチックスをいう。Here, plastics are, for example,
Plastics such as polyethylene, polypropylene, polystyrene, and vinyl chloride including polyethylene terephthalate (PET).
【０００３】[0003]
【従来の技術】近年の社会環境問題の一つとして廃棄物
の埋め立て処理地の確保が困難になってきていることが
挙げられる。廃プラスチックス類の廃棄量は、年間１、
０００万トンにも達する勢いで増加傾向にあり、有効利
用されている量は少なく、大部分が埋め立て処理あるい
は焼却処理されている。2. Description of the Related Art One of recent social and environmental problems is that it has become difficult to secure landfill sites for waste. The amount of waste plastics discarded is 1,
It has been increasing at a rate of as much as 100 million tons, the amount used effectively is small, and most of it is landfilled or incinerated.
【０００４】また、焼却処理時のダイオキシン問題の顕
在化から、環境への悪影響を回避できる廃プラスチック
ス類の処理方法あるいは有効利用法の開発が急がれてい
る。[0004] In addition, since the problem of dioxin during incineration has become apparent, the development of a method of treating waste plastics or an effective utilization method capable of avoiding adverse effects on the environment has been urgently required.
【０００５】この様な背景の中で、廃プラスチックス類
をコークス炉に装入して熱分解する試験が多数行われて
いる。[0005] Against this background, many tests have been conducted in which waste plastics are charged into a coke oven and pyrolyzed.
【０００６】例えば、特開平６−２２８５６５号公報
に、下記内容の粒状プラスチックスを使用したコークス
の製造方法が開示されている。For example, Japanese Patent Application Laid-Open No. 6-228565 discloses a method of producing coke using the following granular plastics.
【０００７】（１）適宜の粒径に砕かれた粒状プラスチ
ックスを装入炭に混ぜてコークス炉で乾留する方法。 （２）適宜の粒径に砕かれた粒状プラスチックスを成型
炭に混ぜてコークス炉で乾留する方法。(1) A method in which granular plastics crushed to an appropriate particle size is mixed with charged coal and carbonized in a coke oven. (2) A method in which granular plastics crushed to an appropriate particle size is mixed with molded coal and carbonized in a coke oven.
【０００８】同公報によれば、適宜の粒径に砕かれた粒
状プラスチックスを混ぜてコークス炉で乾留することに
より、製品コークスが製造できるとしている。しかし、
上記装入炭または成型炭に、単純に粒状プラスチックス
を混合しても、製品のコークス強度が低下する問題が生
じる。According to the publication, product coke can be produced by mixing granular plastics crushed to an appropriate particle size and carbonizing in a coke oven. But,
Even if granular plastics are simply mixed with the charged coal or the formed coal, there is a problem that the coke strength of the product is reduced.
【０００９】[0009]
【発明が解決しようとする課題】プラスチックスの添加
混合により、コークス強度が低下することは、広く知ら
れており、その原因は、石炭乾留過程において、プラス
チックスは揮発し易く、コークス中には、揮発した痕跡
としての気孔が生成しやすく、このように生成した気孔
の増大により、コークス強度が低下し易くなるからと推
定されている。It is widely known that the coke strength is reduced by the addition and mixing of plastics, because plastics are easily volatilized in the coal carbonization process, It is presumed that pores are easily generated as traces of volatilization, and coke strength is liable to decrease due to the increase of the pores thus generated.
【００１０】前記公報に示された発明は、製品のコーク
ス強度が低下するのを防止することを狙って、適宜の粒
径に砕かれた粒状プラスチックスを混ぜてコークス炉で
乾留することを要旨としている。[0010] The invention disclosed in the above publication is to mix granular plastics crushed to an appropriate particle size and dry-distill in a coke oven in order to prevent the coke strength of the product from being reduced. And
【００１１】しかし、具体的な粒径に関する記載が全く
なく、発明を実施することはもちろん、内容を評価する
こともできない。本発明の目的は、製品のコークス強度
が低下しない廃プラスチックス類の処理方法を提供する
ことにある。However, there is no description about a specific particle size, and the invention cannot be practiced, and the content cannot be evaluated. An object of the present invention is to provide a method for treating waste plastics in which the coke strength of a product does not decrease.
【００１２】[0012]
【課題を解決するための手段】本発明者等は、石炭中に
廃プラスチックス類を添加した乾留試験を種々行い、廃
プラスチックス類の適切な使用方法についての検討を行
い、以下の知見を得た。Means for Solving the Problems The present inventors conducted various carbonization tests in which waste plastics were added to coal, examined the appropriate use method of waste plastics, and obtained the following findings. Obtained.
【００１３】（Ａ）装入炭中に廃プラスチックス類を混
合して乾留すると、廃プラスチックス類の添加量の増加
と共に、製品のコークス強度が低下する傾向が認められ
る。この原因は、廃プラスチックス類の揮発性が高く、
廃プラスチックス類が存在していたコークス部分に気孔
が生成したからであると推定される。(A) When the waste plastics are mixed and carbonized in the charged coal, the coke strength of the product tends to decrease as the amount of waste plastics increases. This is due to the high volatility of waste plastics,
It is presumed that pores were generated in the coke portion where the waste plastics existed.
【００１４】（Ｂ）このコークス強度の低下を最小限に
抑える方法について、種々検討した結果、粉炭使用の場
合、同一添加量では、廃プラスチックス類の粒径が大き
い粗粒ほど、コークス強度の低下が抑制できることが判
明した。(B) As a result of various investigations on the method of minimizing the decrease in coke strength, when pulverized coal is used, the coarser the particle size of the waste plastics is, the larger the particle size of the waste plastics is for the same addition amount. It has been found that the decrease can be suppressed.
【００１５】生成したコークスを観察した結果、粒径の
小さい細粒の廃プラスチックス類を添加したものは、コ
ークス中に気孔数が多く、逆に粒径の比較的大きいプラ
スチックスを用いると、コークス中に気孔数が少ないこ
とが認められた。その原因は、同一添加量では、粒径が
大きい粗粒ほど廃プラスチックス類の数が減少するから
であると推定される。As a result of observing the produced coke, it was found that the fine coke to which fine-grained waste plastics having a small particle size was added had a large number of pores in the coke and, conversely, a plastic having a relatively large particle size was used. It was observed that the number of pores was small in the coke. It is presumed that the reason for this is that, for the same amount of addition, the coarser the particle size, the smaller the number of waste plastics.
【００１６】（Ｃ）一方で、粒径の小さい細粒の廃プラ
スチックス類（以下、細粒廃プラスチックス類ともい
う）は、粉炭とともに成型して成型炭として使用すると
よい。細粒廃プラスチックス類は、成型炭中に添加混合
してコークス炉に装入すれば、良好なコークス強度を確
保できる。(C) On the other hand, fine-grained waste plastics having a small particle size (hereinafter also referred to as fine-grain waste plastics) may be molded together with pulverized coal and used as molded coal. Good coke strength can be ensured by adding and mixing the fine-grained waste plastics into molded coal and charging the coke oven.
【００１７】この理由は、細粒廃プラスチックス類を成
型炭中に添加すると、粉炭中に添加した場合と同様に、
廃プラスチックス類が揮発するが、成型炭は見掛け密度
が１０００kg/m3 以上と高いため、廃プラスチックス類
が揮発し、気孔が生成しても、成型炭中における気孔の
生成を無視できるからである。The reason for this is that when fine-grained waste plastics are added to molded coal, similar to the case where they are added to pulverized coal,
Waste plastics are volatilized, but because the apparent density of molded coal is as high as 1000 kg / m 3 or more, even if waste plastics are volatilized and pores are generated, the generation of pores in the molded coal can be ignored. It is.
【００１８】（Ｄ）上記成型炭中に、例えば、石油ピッ
チ等の粘結性補填材を同時に添加すると、更にコークス
強度を高くすることができる。この理由は、粘結性補填
材の働きにより、生成した気孔を埋める効果があるから
である。(D) The coke strength can be further increased by simultaneously adding a caking filler such as petroleum pitch or the like to the above-mentioned molded coal. The reason for this is that the action of the caking filler has the effect of filling the generated pores.
【００１９】（Ｅ）細粒廃プラスチックス類を成型炭中
に添加すると、飛散等の問題が生じることが少ない。粉
炭中の廃プラスチックス類が細粒廃プラスチックス類で
あると、非常に飛散しやすく、各種配管等の閉塞等のト
ラブルが発生し易い。(E) If fine-grained waste plastics are added to the charcoal, problems such as scattering are less likely to occur. If the waste plastics in the pulverized coal are fine-grained waste plastics, they are very easily scattered, and troubles such as blockage of various pipes and the like easily occur.
【００２０】しかし、成型炭中の細粒廃プラスチックス
類は、自由度の小さな状態で存在しており、飛散等の問
題が生じることが少ない。However, the fine-grained waste plastics in the molded coal are present in a state with a small degree of freedom, and are unlikely to cause problems such as scattering.
【００２１】本発明は、以上の知見に基づいてなされた
もので、その要旨は、下記のとおりである。The present invention has been made based on the above findings, and the gist thereof is as follows.
【００２２】（１）コークス炉で廃プラスチックス類を
処理する方法において、前記廃プラスチックス類を細粒
分と粗粒分とに区分し、細粒分を成型炭中に、粗粒分を
粉炭中に添加し乾留することを特徴とする廃プラスチッ
クス類の処理方法。(1) In the method of treating waste plastics in a coke oven, the waste plastics are divided into fine particles and coarse particles, and the fine particles are separated into molded coal and the coarse particles are separated. A method for treating waste plastics, which is added to pulverized coal and carbonized.
【００２３】（２）成型炭中に粘結性補填材を添加する
ことを特徴とする上記（１）に記載の廃プラスチックス
類の処理方法。(2) The method for treating waste plastics according to the above (1), wherein a caking filler is added to the formed coal.
【００２４】（３）細粒分の粒径が６mm未満であり、粗
粒分の粒径が６mm以上であることを特徴とする上記
（１）または（２）に記載の廃プラスチックス類の処理
方法。(3) The waste plastics according to (1) or (2), wherein the fine particles have a particle size of less than 6 mm and the coarse particles have a particle size of 6 mm or more. Processing method.
【００２５】[0025]
【発明の実施の形態】廃プラスチックス類を細粒分と粗
粒分とに区分し、細粒分を成型炭中に、粗粒分を粉炭中
に添加し乾留する。BEST MODE FOR CARRYING OUT THE INVENTION Waste plastics are divided into fine particles and coarse particles, and the fine particles are added to molded coal, and the coarse particles are added to pulverized coal and carbonized.
【００２６】廃プラスチックス類とは、前記の通り、プ
ラスチックス類またはプラスチックス類を含有する廃棄
物のことであり、プラスチックス類のみの構成も含み、
プラスチックス以外の構成成分としては、例えば紙類等
がある。As described above, waste plastics refers to plastics or waste containing plastics, and includes a configuration of only plastics.
As a component other than plastics, for example, there is paper.
【００２７】廃プラスチックス類を細粒と粗粒とに分離
する方法は、特に限定されるものではなく、粒径に分布
がある場合には、単に篩等で分離すればよい。粒径の大
きいものは、粉砕して細粒を別途調製することも必要で
ある。The method of separating the waste plastics into fine particles and coarse particles is not particularly limited, and if there is a distribution in the particle size, it may be simply separated by a sieve or the like. Those having a large particle size also need to be pulverized to separately prepare fine particles.
【００２８】細粒とは、粉炭部に供給される粗粒と相対
的に区分されるもので、その絶対値は、特に限定される
ものではない。しかし、細粒は、その最も短い部分の径
が６mm未満が好ましい。更に好ましくは３mm以下であ
る。Fine particles are relatively distinguished from coarse particles supplied to the pulverized coal portion, and their absolute values are not particularly limited. However, it is preferable that the diameter of the shortest part of the fine particles is less than 6 mm. More preferably, it is 3 mm or less.
【００２９】粗粒は、その最も短い部分の径が好ましく
は６mm以上が好ましい。更に好ましくは２０mm以上であ
る。廃プラスチックス類を細粒と粗粒とに区分した後、
細粒分を成型炭中に、粗粒分を粉炭中にそれぞれ添加す
る。The coarse particles preferably have a diameter of the shortest part, preferably 6 mm or more. More preferably, it is 20 mm or more. After sorting waste plastics into fine particles and coarse particles,
The fine fraction is added to the coal, and the coarse fraction is added to the pulverized coal.
【００３０】廃プラスチックス類を含有する成型炭およ
び粉炭から構成される装入炭をコークス炉に装入する。
装入炭中の粉炭と成型炭との重量比率（粉炭重量／成型
炭重量）は、特に限定されるものではなく、任意の値を
取ることがである。[0030] Charged coal composed of molded coal and pulverized coal containing waste plastics is charged into a coke oven.
The weight ratio between the pulverized coal and the molded coal in the charged coal (powder coal weight / molded coal weight) is not particularly limited, and may take an arbitrary value.
【００３１】好ましい装入炭中の粉炭と成型炭との重量
比率（粉炭重量／成型炭重量）は、１〜１０である。成
型炭中に粘結性補填材を添加すると、コークス強度を高
めるのに有効である。粘結性補填材としては、石油アス
ファルト、アスファルトピッチまたはコールタールピッ
チ等が使用できる。The preferred weight ratio of the pulverized coal to the coal in the charged coal (powder coal weight / molded coal weight) is 1 to 10. Addition of a caking filler to the coal is effective in increasing the coke strength. Petroleum asphalt, asphalt pitch, coal tar pitch or the like can be used as the caking filler.
【００３２】[0032]
【実施例】表１は、試験に使用した装入炭の性状を示
す。表２は、試験に使用した廃プラスチックス類の成分
分析結果を示す。表３は、試験に使用した粘結性補填材
の石油ピッチの性状を示す。EXAMPLES Table 1 shows the properties of the charged coal used in the test. Table 2 shows the results of component analysis of the waste plastics used in the test. Table 3 shows the properties of petroleum pitch of the caking filler used in the test.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【表２】 [Table 2]
【００３５】[0035]
【表３】 [Table 3]
【００３６】（実施例１）表１に性状を示した装入炭３
００kgの内の２５％を大きさ４０×４０×３０mmの成型
炭とし、残り７５％を粉炭として使用した。(Example 1) Charged coal 3 whose properties are shown in Table 1.
Twenty-five percent of the 00 kg were formed into coal with a size of 40 × 40 × 30 mm, and the remaining 75% was used as pulverized coal.
【００３７】表２に成分分析結果を示した廃プラスチッ
クス類を所定の粒径範囲に調製し、所定量添加混合し、
炉温１１５０℃の２５０kg規模試験コークス炉を使用し
て炭中温度が９５０℃になるまで乾留した。乾留後のコ
ークスは直ちに排出して冷却し、冷却後のコークスドラ
ム強度（ドラム１５０回転後の１５mm篩上割合）を測定
した。The waste plastics whose component analysis results are shown in Table 2 are prepared in a predetermined particle size range, and a predetermined amount is added and mixed.
Using a 250 kg scale test coke oven with a furnace temperature of 1150 ° C., carbonization was performed until the temperature in the coal reached 950 ° C. The coke after the carbonization was immediately discharged and cooled, and the coke drum strength after cooling (15 mm sieve ratio after 150 rotations of the drum) was measured.
【００３８】表４は、試験方法とコークスドラム強度と
の関係を示す。なお、従来例は、廃プラスチックス類を
添加しないで、同様に試験を行った結果を示す。Table 4 shows the relationship between the test method and the coke drum strength. In addition, the conventional example shows the result of the same test performed without adding waste plastics.
【００３９】[0039]
【表４】 [Table 4]
【００４０】表４に示すように、廃プラスチックス類を
粉炭および成型炭中に、細粒と粗粒を分離しないで添加
した比較例１に対し、本発明例１のように、粗粒を粉炭
中に、細粒を成型炭中にそれぞれ添加した場合には、コ
ークス強度が顕著に向上した。As shown in Table 4, as compared with Comparative Example 1 in which waste plastics were added to pulverized coal and molded coal without separating fine particles and coarse particles, coarse particles were removed as in Example 1 of the present invention. When fine granules were added to the pulverized coal and the formed coal, respectively, the coke strength was significantly improved.
【００４１】また、本発明例１は、従来例のコークス強
度と、ほとんど遜色ないコークス強度が得られた。In Example 1 of the present invention, a coke strength almost equivalent to that of the conventional example was obtained.
【００４２】（実施例２）添加した廃プラスチックス類
の粒径範囲を変更した以外は、実施例１と同様の方法で
乾留試験を行った。表５は、試験方法とコークスドラム
強度との関係を示す。Example 2 A carbonization test was performed in the same manner as in Example 1 except that the range of the particle size of the waste plastics added was changed. Table 5 shows the relationship between the test method and the coke drum strength.
【００４３】[0043]
【表５】 [Table 5]
【００４４】表５に示すように、本発明例２は、本発明
例１と同様に、良好なコークス強度が維持できた。廃プ
ラスチックス類を粉炭および成型炭中に、細粒と粗粒を
分離しないで添加した比較例２は、本発明例２に比べて
大幅に、コークス強度が低下したまた、このときの乾留
状況を把握するため、乾留試験後のコークス炉上昇管部
（発生ガス抜き出し口）を開放して観察したところ、本
発明例２では、特段の不都合は無かった。As shown in Table 5, Example 2 of the present invention maintained good coke strength similarly to Example 1 of the present invention. In Comparative Example 2 in which waste plastics were added to pulverized coal and molded coal without separating fine particles and coarse particles, the coke strength was significantly reduced as compared with Example 2 of the present invention. The coke oven rising pipe section (evolved gas extraction port) after the carbonization test was opened and observed in order to ascertain the condition. In Example 2 of the present invention, there was no particular inconvenience.
【００４５】しかし、比較例では、乾留試験後のコーク
ス炉上昇管部の出口部に固形物の付着現象が認められ
た。細粒を成型炭中に添加する本発明例は、出口部に固
形物が付着するトラブルがなかった。However, in the comparative example, a solid adhesion phenomenon was observed at the outlet of the coke oven riser after the carbonization test. In the example of the present invention in which the fine granules were added to the molded coal, there was no trouble that the solid matter adhered to the outlet portion.
【００４６】（実施例３）添加した廃プラスチックス類
の粒径範囲を変更（粒径６〜２０mm→２０〜４０mm）し
た以外は、本発明例１と同様の方法で乾留試験を行っ
た。表６は、試験方法とコークスドラム強度との関係を
示す。Example 3 A carbonization test was carried out in the same manner as in Example 1 of the present invention, except that the particle size range of the added waste plastics was changed (particle size: 6 to 20 mm → 20 to 40 mm). Table 6 shows the relationship between the test method and the coke drum strength.
【００４７】[0047]
【表６】 [Table 6]
【００４８】表６に示すように、本発明例３は、本発明
例２より、さらに良好なコークス強度が維持できた。廃
プラスチックス類を粉炭および成型炭中に、細粒と粗粒
を分離しないで添加した比較例３は、本発明例３に比べ
て大幅に、コークス強度が低下した （実施例４）前記表３に性状を示した石油ピッチ３kgを
粘結性補填材として成型炭中に添加した以外は、本発明
例３と同様の方法で乾留試験を行った。表７は、試験方
法とコークスドラム強度との関係を示す。As shown in Table 6, Example 3 of the present invention could maintain better coke strength than Example 2 of the present invention. Comparative Example 3 in which waste plastics were added to pulverized coal and molded coal without separating fine and coarse particles had a significantly lower coke strength than Example 3 of the present invention (Example 4). A dry distillation test was performed in the same manner as in Example 3 of the present invention, except that 3 kg of petroleum pitch having the properties shown in No. 3 was added as a caking filler in the coal. Table 7 shows the relationship between the test method and the coke drum strength.
【００４９】[0049]
【表７】 [Table 7]
【００５０】表７に示すように、本発明例４は、本発明
例３より、さらに良好なコークス強度が維持できた。As shown in Table 7, Example 4 of the present invention could maintain better coke strength than Example 3 of the present invention.
【００５１】[0051]
【発明の効果】本発明によれば、コークス強度を低下さ
せることなくコークス炉へ廃プラスチックス類の添加を
することができる。According to the present invention, waste plastics can be added to a coke oven without reducing the coke strength.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 英邦 大阪市中央区北浜４丁目５番33号 住友金 属工業株式会社内 Ｆターム(参考） 4F301 AA13 AA14 AA15 AA17 AA25 CA04 CA09 CA24 CA52 CA72 4H012 HB01 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidekuni Ito 4-5-33 Kitahama, Chuo-ku, Osaka-shi F-term in Sumitomo Metal Industries, Ltd. 4F301 AA13 AA14 AA15 AA17 AA25 CA04 CA09 CA24 CA52 CA72 4H012 HB01
Claims (3)
する方法において、前記廃プラスチックス類を細粒分と
粗粒分とに区分し、細粒分を成型炭中に、粗粒分を粉炭
中に添加し乾留することを特徴とする廃プラスチックス
類の処理方法。1. A method of treating waste plastics in a coke oven, wherein the waste plastics is divided into fine particles and coarse particles, and the fine particles are formed into molded coal, and the coarse particles are separated into fine coal. A method for treating waste plastics, wherein the waste plastics is added and carbonized.
を特徴とする請求項１に記載の廃プラスチックス類の処
理方法。2. The method for treating waste plastics according to claim 1, wherein a caking filler is added to the coal.
の粒径が６mm以上であることを特徴とする請求項１また
は２に記載の廃プラスチックス類の処理方法。3. The method for treating waste plastics according to claim 1, wherein the particle size of the fine particles is less than 6 mm, and the particle size of the coarse particles is 6 mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377199A JP3589098B2 (en) | 1999-06-29 | 1999-06-29 | Waste plastics treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377199A JP3589098B2 (en) | 1999-06-29 | 1999-06-29 | Waste plastics treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001011468A true JP2001011468A (en) | 2001-01-16 |
| JP3589098B2 JP3589098B2 (en) | 2004-11-17 |
Family
ID=16141676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18377199A Expired - Fee Related JP3589098B2 (en) | 1999-06-29 | 1999-06-29 | Waste plastics treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3589098B2 (en) |
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1999
- 1999-06-29 JP JP18377199A patent/JP3589098B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3589098B2 (en) | 2004-11-17 |
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