JP3305993B2 - Non-thermal dechlorination of polyvinyl chloride - Google Patents
Non-thermal dechlorination of polyvinyl chlorideInfo
- Publication number
- JP3305993B2 JP3305993B2 JP31004697A JP31004697A JP3305993B2 JP 3305993 B2 JP3305993 B2 JP 3305993B2 JP 31004697 A JP31004697 A JP 31004697A JP 31004697 A JP31004697 A JP 31004697A JP 3305993 B2 JP3305993 B2 JP 3305993B2
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl chloride
- mixture
- shows
- treatment
- 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.)
- Expired - Fee Related
Links
- 229920000915 polyvinyl chloride Polymers 0.000 title claims description 28
- 239000004800 polyvinyl chloride Substances 0.000 title claims description 28
- 238000006298 dechlorination reaction Methods 0.000 title claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 description 19
- 239000000203 mixture Substances 0.000 description 18
- 239000007787 solid Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- 238000002441 X-ray diffraction Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010303 mechanochemical reaction Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KIZFHUJKFSNWKO-UHFFFAOYSA-M calcium monohydroxide Chemical compound [Ca]O KIZFHUJKFSNWKO-UHFFFAOYSA-M 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical group 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000382 dechlorinating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910001504 inorganic chloride Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012261 resinous substance Substances 0.000 description 1
- 238000000550 scanning electron microscopy energy dispersive X-ray spectroscopy Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
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
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はポリ塩化ビニルの非
加熱脱塩素化に関し、とくに、廃棄されるポリ塩化ビニ
ル成形品の環境問題を解消することに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to non-thermal dechlorination of polyvinyl chloride, and more particularly to solving environmental problems of discarded polyvinyl chloride molded articles.
【０００２】[0002]
【従来の技術】ポリ塩化ビニル樹脂は耐蝕性、成形加工
性、軽量性等にすぐれることから、各種方面で広く使用
されている成形素材である。しかしながら、年々増大す
る需要と相まって、廃棄されるポリ塩化ビニル成形品の
量も増え，その処理方法が問題になっている。すなわ
ち、燃焼処理では有害ガスの発生をともなうので問題が
あり、他に有効な処理技術がないので、埋め立て処分に
依存しているのが現状である。2. Description of the Related Art Polyvinyl chloride resin is a molding material widely used in various fields because of its excellent corrosion resistance, molding workability, light weight and the like. However, in conjunction with the demand which is increasing year by year, the amount of the discarded polyvinyl chloride molded article is also increased, and the treatment method is becoming a problem. That is, there is a problem in combustion treatment because it involves generation of harmful gas, and there is no other effective treatment technology.
【０００３】[0003]
【発明が解決しようとする課題】本発明は廃棄されるポ
リ塩化ビニル成形品を非加熱脱塩素化して環境問題を解
消し、かつ生成物を有効利用し得る方法を提供せんとす
るものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for eliminating the environmental problem by non-heating dechlorination of a discarded polyvinyl chloride molded article and effectively utilizing the product. .
【０００４】[0004]
【課題を解決するための手段】ここにおいて本発明者
は、粉末状のポリ塩化ビニル成分を酸化カルシウム、水
酸化カルシウム、酸化亜鉛，水酸化ナトリウムのいずれ
か粉末の存在下、常温で所定時間メカノケミカル処理し
たのち、水洗濾過することによりポリ塩化ビニルの脱塩
素化ができることを見出し、とくに、ポリ塩化ビニル成
分が廃棄ポリ塩化ビニル成形品中のものについて適用し
得ることを見出すにいたった。Here, the present inventor has proposed that a powdery polyvinyl chloride component is mechanized at room temperature for a predetermined time in the presence of any powder of calcium oxide, calcium hydroxide, zinc oxide and sodium hydroxide. It has been found that polyvinyl chloride can be dechlorinated by chemical treatment, followed by washing and filtration, and in particular, it has been found that the polyvinyl chloride component can be applied to those in waste polyvinyl chloride molded articles.
【０００５】[0005]
【発明の実施の形態】本発明で用いるメカノケミカルと
は、一般に固体物質に加えた機械的エネルギ−、たとえ
ば、せん断、圧縮、衝撃、粉砕、曲げ延伸などによっ
て、固体表面が物理化学的変化をきたし、その周囲に存
在する気体、液体、固体物質に化学的変化をもたらす
か、あるいはそれらと固体表面との化学的変化を直接誘
起し、または促進するなどして、化学的状態に影響をお
よぼす現象として知られている。DETAILED DESCRIPTION OF THE INVENTION A mechanochemical used in the present invention generally means that a solid surface undergoes physicochemical changes due to mechanical energy added to a solid substance, for example, shear, compression, impact, crushing, bending and stretching. Affects the chemical state of the surrounding gas, liquid, or solid material by causing a chemical change or directly inducing or promoting a chemical change between them and the solid surface Known as a phenomenon.
【０００６】廃棄ポリ塩化ビニル成形品の場合は、予め
これを粉砕したものを用いる。ポリ塩化ビニルの場合、
これに酸化カルシウムや水酸化ナトリウム、水酸化カル
シウムの粉末を少なくとも当量相当を混合して、これら
を常温で８時間程度メカノケミカル処理し、水洗濾過に
より水溶性物質を固体残渣と分離し、それぞれを利用性
があるので、廃棄ポリ塩化ビニル成形品の場合も、固体
残渣は不飽和炭化水素の樹脂状物として燃料等に、水溶
の物質は安定な無機塩化物としてそれぞれ再利用し得
る。なお、固体残渣中に酸化カルシウム等の脱塩素化剤
が残存する場合は、灰分を適宜処理すればよい。In the case of a waste polyvinyl chloride molded product, a product obtained by pulverizing the same in advance is used. For polyvinyl chloride,
At least equivalent amounts of calcium oxide, sodium hydroxide, and calcium hydroxide powders are mixed with the mixture, and the mixture is subjected to mechanochemical treatment at room temperature for about 8 hours, and the water-soluble substance is separated from the solid residue by washing and filtration. In the case of waste polyvinyl chloride molded articles, the solid residue can be reused as an unsaturated hydrocarbon resinous substance for fuels and the like, and the water-soluble substance can be reused as stable inorganic chlorides. If a dechlorinating agent such as calcium oxide remains in the solid residue, the ash may be appropriately treated.
【０００７】[0007]
【実施例】以下、実施例により本発明を具体的に説明す
る。ポリ塩化ビニルとして平均重合度１１００で、６０
ないし４００μｍの粒径に粉末化されたものを用いた。
このものはポリ塩化ビニル樹脂として実用されているも
のと殆ど同程度のものである。このポリ塩化ビニルはＸ
線回折により無定形であることが確認されている。これ
に酸化カルシウム（ＣａＯ）粉体をモル比で１：１、す
なわち重量比で６２．５：５６添加し、出発混合物質と
した。The present invention will be described below in detail with reference to examples. Polyvinyl chloride with an average degree of polymerization of 1100, 60
A powder having a particle size of from 400 to 400 μm was used.
This is almost the same as that practically used as a polyvinyl chloride resin. This polyvinyl chloride is X
It has been confirmed by line diffraction that it is amorphous. Calcium oxide (CaO) powder was added to the mixture in a molar ratio of 1: 1, that is, 62.5: 56 by weight to obtain a starting mixed substance.
【０００８】出発物質のメカノケミカル処理には遊星ミ
ル（Ｆｒｉｔｓｃｈ、Ｐｕｌｖｅｒｉｚｅｔｅ−７）を
用いた。この粉砕機は２個のステンレス製ポット（容量
５０ｃｍ3 ）が水平に時計方向に回転するデスクに設置
され、かつ，個々のポットはデスクと同一回転速度で反
時計方向に回転できるようになっている。ポットの公転
半径は７０ｍｍ、回転速度は７００ｒｐｍである。ポッ
ト内には直径１５ｍｍのステンレス製ボ−ル７個と上記
混合物３ｇを装填し、室温にてミル処理した。処理時間
は８時間までとし、１５分運転後３０分間休止して、ミ
ル内温度の過度な上昇を防止した。ミル処理品は回収後
水洗し、可溶性物質を濾過により取り除いた後、固体残
渣を回収した。ミル処理品については粒度分布測定、Ｘ
線回折（生成相と組成評価）、ＳＥＭ−ＥＤＸ（形態と
組成分析）、ＦＴ−ＩＲ（表面分析）、ＧＰＣ（分子量
測定）等によってそれぞれ評価した。For the mechanochemical treatment of the starting materials, a planetary mill (Fritsch, Pulverizete-7) was used. This crusher is installed on a desk in which two stainless steel pots (capacity 50 cm 3 ) rotate horizontally clockwise, and each pot can be rotated counterclockwise at the same rotation speed as the desk. I have. The revolution radius of the pot is 70 mm, and the rotation speed is 700 rpm. The pot was charged with seven stainless steel balls having a diameter of 15 mm and 3 g of the above mixture, and milled at room temperature. The treatment time was up to 8 hours, and the operation was stopped for 15 minutes after the 15-minute operation to prevent an excessive rise in the temperature in the mill. The milled product was collected, washed with water, filtered to remove soluble substances, and then a solid residue was recovered. For milled products, particle size distribution measurement, X
Evaluation was performed by line diffraction (evaluation of generated phase and composition), SEM-EDX (morphology and composition analysis), FT-IR (surface analysis), GPC (molecular weight measurement), and the like.
【０００９】〔メカノケミカル処理〕図１にメカノケミ
カル処理後の混合物の形態を示す。未処理混合物（０．
０Ｈ）（Ｈは時間の略、以下同様）ではポリ塩化ビニル
粗大粒子とＣａＯ微粉末の状態となっているが、ミル処
理時間の増大とともにポリ塩化ビニルとＣａＯが混合
し、凝集体を形成しながら微粒化される様子がわかる。[Mechanochemical treatment] FIG. 1 shows the form of the mixture after the mechanochemical treatment. Untreated mixture (0.
0H) (H is an abbreviation of time, the same applies hereinafter), but in a state of polyvinyl chloride coarse particles and CaO fine powder, as the milling time increases, polyvinyl chloride and CaO mix to form aggregates. It can be seen that the particles are being atomized.
【００１０】図２にメカノケミカル処理後の混合物のミ
ル処理時間による粒子径とその分布の関係を示す。これ
は図１を数字で示したものである。FIG. 2 shows the relationship between the particle size and the distribution depending on the milling time of the mixture after the mechanochemical treatment. This is a numerical representation of FIG.
【００１１】図３にはミル処理時間による混合物のＸ線
回折（ＸＲＤ）パタ−ンを示す（ｈは時間の略、以下同
様）。これよりミル処理時間５時間でＣａＯＨＣｌの生
成を示す明瞭なピ−クが観察でき、それが時間とともに
増大し、逆にＣａＯの回折ピ−クが低下してくることが
わかる。このＸＲＤパタ−ンの変化はポリ塩化ビニル中
の塩素基がＣａＯとメカノケミカル反応していることを
示している。FIG. 3 shows an X-ray diffraction (XRD) pattern of the mixture according to the milling time (h is an abbreviation of time, and the same applies hereinafter). From this, it can be seen that a clear peak indicating the generation of CaOH HCl can be observed in the milling time of 5 hours, which increases with time, and conversely, the diffraction peak of CaO decreases. This change in the XRD pattern indicates that the chlorine group in the polyvinyl chloride undergoes a mechanochemical reaction with CaO.
【００１２】図４にはミル処理時間５時間における混合
物のＸ線回折（ＸＲＤ）パタ−ンを示す（ｈｓは時間の
略、ＰＶＣはポリ塩化ビニルの略、以下同様）。ＣａＯ
のほか、ＮａＯＨ、Ｃａ（ＯＨ）2 、ＺｎＯについても
ＣａＯの場合に準じて処理をおこない、Ｘ線回折（ＸＲ
Ｄ）パタ−ンを示してあり、それぞれ塩素の結合した水
溶性塩化物の生成が認められ、ポリ塩化ビニルの脱塩素
化がおこなわれていることを示す。FIG. 4 shows an X-ray diffraction (XRD) pattern of the mixture at a milling time of 5 hours (hs stands for time, PVC stands for polyvinyl chloride, and so on). CaO
In addition, NaOH, Ca (OH) 2 , and ZnO are treated in the same manner as in the case of CaO, and subjected to X-ray diffraction (XR
D) A pattern is shown, and formation of a water-soluble chloride bonded with chlorine is recognized, indicating that dechlorination of polyvinyl chloride is being performed.
【００１３】図５には図３に示すミル処理品のＦＴ−Ｉ
Ｒパタ−ンを示す。これより３５００ｃｍ-1付近の−Ｏ
Ｈの赤外吸収ピ−クがミル処理時間の増大とともに増加
していることがわかる。また、１４１０ｃｍ-1付近のＣ
ａＯＨＣｌのピ−クはミル処理０．５時間で現れ、５時
間処理で急激に増大しており、図３の結果とよく対応す
る。FIG. 5 shows the FT-I of the milled product shown in FIG.
Indicates the R pattern. -O around 3500 cm -1
It can be seen that the infrared absorption peak of H increases with an increase in the milling time. In addition, C around 1410 cm -1
The peak of aOHCl appeared at 0.5 hours in the mill treatment and increased sharply in the 5 hours treatment, which corresponds well to the results in FIG.
【００１４】〔ミル処理品の洗浄〕図６にはミル処理後
の混合物を水洗した残渣のＸＲＤパタ−ンを示す。図６
と図３（ミル処理のみ）を比較すると、たとえば、メカ
ノケミカル処理５時間の場合では、生成したＣａＯＨＣ
ｌが水洗によって固体残渣から除去され、残渣には僅か
にＣａＣＯ3 のピ−クが認められる。これは未反応のＣ
ａＯが水中でのＣＯ3 -2イオンと反応して生成したもの
であり、ミル処理５時間でもメカノケミカル反応は完全
には達成していないことを意味する。[Washing of Milled Products] FIG. 6 shows the XRD pattern of the residue obtained by washing the mixture after milling with water. FIG.
And FIG. 3 (mill treatment only), for example, in the case of mechanochemical treatment for 5 hours, the generated CaOHC
1 is removed from the solid residue by washing with water, and the residue shows a slight peak of CaCO 3 . This is the unreacted C
aO was produced by reacting with CO 3 -2 ions in water, which means that the mechanochemical reaction was not completely achieved even after 5 hours of milling.
【００１５】図７は洗浄水中の塩素濃度測定結果より、
ミル処理時間による脱塩素化率を求めたものである。こ
れより脱塩素化はミル処理時間とともに増加し、ＣａＯ
やＮａＯＨを用いた場合は、８時間で９０％近くに達す
る。Ｃａ（ＯＨ）2 の場合は５５％位で劣る。FIG. 7 shows the results of measuring the chlorine concentration in the washing water.
It is a result of determining the dechlorination rate according to the milling time. From this, dechlorination increases with milling time, and CaO
When using NaOH or NaOH, it reaches nearly 90% in 8 hours. Ca (OH) 2 is inferior at about 55%.
【００１６】一方、図８には固体残渣の平均分子量のミ
ル処理時間による変化を示す。これより残渣の平均分子
量はミル処理時間の増大とともに低下しており、ミル処
理によって高分子量物質が低分子量物質へと変化してい
る様子がわかる。On the other hand, FIG. 8 shows the change in the average molecular weight of the solid residue with the milling time. From this, it can be seen that the average molecular weight of the residue decreases as the milling time increases, and that the high molecular weight substance is changed to a low molecular weight substance by the milling.
【００１７】[0017]
【発明の効果】本発明においてポリ塩化ビニルのメカノ
ケミカルミル処理によって水溶性塩化物が生成し、それ
を水洗濾過することによって固体から分離することがで
きるので、それ自身無機塩化物として各種利用が可能で
ある。また、固体残渣は塩素基のない炭化水素であるか
ら燃料等にして再利用可能である。したがって、本発明
は廃棄ポリ塩化ビニル成形品の非加熱による環境調和型
リサイクル処理法として利用することができる。According to the present invention, a water-soluble chloride is produced by the mechanochemical mill treatment of polyvinyl chloride, which can be separated from the solid by washing and filtering with water. It is possible. Further, since the solid residue is a hydrocarbon having no chlorine group, it can be reused as fuel or the like. Therefore, the present invention can be used as an environmentally friendly recycling method by not heating a waste polyvinyl chloride molded article.
【図１】 メカノケミカル処理後の混合物の形態を示
す。FIG. 1 shows the morphology of a mixture after mechanochemical treatment.
【図２】 メカノケミカル処理後の混合物のミル処理時
間による粒子径とその分布の関係を示す。FIG. 2 shows the relationship between the particle size and its distribution depending on the milling time of the mixture after the mechanochemical treatment.
【図３】 ミル処理時間による混合物のＸ線回折（ＸＲ
Ｄ）パタ−ンを示す。FIG. 3: X-ray diffraction (XR) of the mixture by milling time
D) Indicates a pattern.
【図４】 ミル処理時間５時間における混合物のＸ線回
折（ＸＲＤ）パタ−ンを示す。FIG. 4 shows an X-ray diffraction (XRD) pattern of the mixture at a milling time of 5 hours.
【図５】 図３に示すミル処理品のＦＴ−ＩＲパタ−ン
を示す。5 shows an FT-IR pattern of the milled product shown in FIG.
【図６】 ミル処理後の混合物を水洗した残渣のＸＲＤ
パタ−ンを示す。FIG. 6: XRD of the residue obtained by washing the mixture after milling with water
Indicates a pattern.
【図７】 ミル処理時間による脱塩素化率を示す。FIG. 7 shows the dechlorination rate depending on the milling time.
【図８】 固体残渣の平均分子量のミル処理時間による
変化を示す。FIG. 8 shows the change in average molecular weight of the solid residue with milling time.
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29B 17/00 - 17/02 C08J 11/00 - 11/28 B09B 3/00 - 5/00 C08L 27/00 - 27/24 C08J 3/00 - 3/28 Continuation of the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29B 17/00-17/02 C08J 11/00-11/28 B09B 3/00-5/00 C08L 27/00-27 / 24 C08J 3/00-3/28
Claims (2)
カルシウム、水酸化カルシウム、酸化亜鉛、水酸化ナト
リウムのいずれか粉末の存在下、常温で所定時間メカノ
ケミカル処理したのち、水洗濾過することを特徴とする
ポリ塩化ビニルの非加熱脱塩素化法。1. A mechanochemical treatment of a powdered polyvinyl chloride component at room temperature in the presence of any one of calcium oxide, calcium hydroxide, zinc oxide and sodium hydroxide for a predetermined time, followed by washing with water and filtration. Characteristic non-heat dechlorination method of polyvinyl chloride.
ル成形品中のものである請求項１記載のポリ塩化ビニル
の非加熱脱塩素化法。2. The method of claim 1, wherein the polyvinyl chloride component is contained in a waste polyvinyl chloride molded article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31004697A JP3305993B2 (en) | 1997-10-24 | 1997-10-24 | Non-thermal dechlorination of polyvinyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31004697A JP3305993B2 (en) | 1997-10-24 | 1997-10-24 | Non-thermal dechlorination of polyvinyl chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11124463A JPH11124463A (en) | 1999-05-11 |
| JP3305993B2 true JP3305993B2 (en) | 2002-07-24 |
Family
ID=18000522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31004697A Expired - Fee Related JP3305993B2 (en) | 1997-10-24 | 1997-10-24 | Non-thermal dechlorination of polyvinyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3305993B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019141504A1 (en) * | 2018-01-20 | 2019-07-25 | Bürkle Consulting Gmbh | Mechanochemical process for producing valuable products free from persistent organic pollutants and other organohalogen compounds from waste comprising plastics and plastic laminates |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW510830B (en) * | 1999-08-10 | 2002-11-21 | Sumitomo Metal Ind | Method for treating hazardous material |
| JP4101996B2 (en) * | 2000-03-09 | 2008-06-18 | Ｄｏｗａホールディングス株式会社 | Non-thermal defluorination method of fluorine resin |
| JP4565259B2 (en) * | 2004-11-02 | 2010-10-20 | 国立大学法人信州大学 | Detoxification method of waste plastic mixture containing chlorine-containing resin |
| JP2007246681A (en) * | 2006-03-16 | 2007-09-27 | Tohoku Univ | Method for producing fuel gas from ordinary temperature dechlorination treatment product of pvc |
| EP4079791A1 (en) | 2021-04-22 | 2022-10-26 | Coperion GmbH | Method and device for treating plastic material |
| CN113754924A (en) * | 2021-08-12 | 2021-12-07 | 重庆文理学院 | Method for treating PVC (polyvinyl chloride) based on cooperation of mechanochemical method and industrial solid waste |
-
1997
- 1997-10-24 JP JP31004697A patent/JP3305993B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019141504A1 (en) * | 2018-01-20 | 2019-07-25 | Bürkle Consulting Gmbh | Mechanochemical process for producing valuable products free from persistent organic pollutants and other organohalogen compounds from waste comprising plastics and plastic laminates |
| US11807724B2 (en) | 2018-01-20 | 2023-11-07 | Gregor Luthe | Mechanochemical process for producing valuable products free from persistent organic pollutants and other organohalogen compounds from waste comprising plastics and plastic laminates |
| EP4293072A3 (en) * | 2018-01-20 | 2024-03-13 | Smart Material Printing B.V. | Mechanochemical process for the production of persistent organic pollutants and other organohalogen compounds free valuables from waste of plastics and plastic laminates |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11124463A (en) | 1999-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4676929A (en) | Gels, gel products and methods | |
| JP3305993B2 (en) | Non-thermal dechlorination of polyvinyl chloride | |
| BRPI0711910A2 (en) | Dry milling process of a material containing carbonated ore, products and use of the products | |
| CN1476471A (en) | Granular inorganic filler, process for producing filler and resin compositions containing same | |
| CA2047380A1 (en) | Intumescence media and the use thereof | |
| JPH04318042A (en) | Filler for decomposable plastic | |
| CN107406662B (en) | Polyester resin powder/particle mixture | |
| CN110337469B (en) | Method for producing hydrophobic silica particles | |
| Pachana et al. | Alkali-activated material synthesized from palm oil fuel ash for Cu/Zn ion removal from aqueous solutions | |
| JPH02279515A (en) | Superfine granular magnesium hydroxide and its production | |
| JP2007099548A (en) | Method of manufacturing silica powder and silica powder obtained by the same | |
| JP2001114931A (en) | Preparation of dechlorinated resin | |
| JP3773247B2 (en) | Method for producing phosphorus-free magnesium hydroxide flame retardant | |
| CN1042344C (en) | Granular water-proof heat-protection building material | |
| JPH0699151B2 (en) | Lipophilic modified basic calcium carbonate and method for producing the same | |
| JP2009084132A (en) | Modified clay mineral powder, and method for producing the same | |
| JP2772671B2 (en) | Magnesium hydroxide particles | |
| Ioelovich | Green Technology of Microcrystalline Cellulose | |
| JP2002348574A (en) | Flame-retarding agent, method for producing the same and flame-retardant resin composition containing the agent | |
| JP4101996B2 (en) | Non-thermal defluorination method of fluorine resin | |
| Thanpitcha et al. | Physical and electrical properties of chlorophyllin/carboxymethyl chitin and chlorophyllin/carboxymethyl chitosan blend films | |
| JP2001302941A (en) | Filler comprising hydroxide composition, its production method, and flame-retardant material using the same | |
| WO1993012169A1 (en) | Material composed of carbon compounds | |
| JP2005048035A (en) | Magnesium hydroxide-based flame retardant and resin composition containing the same | |
| JPH08100176A (en) | Production of agricultural material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090510 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |