JPH0699054A - Treatment of car shredder dust combustion ash - Google Patents
Treatment of car shredder dust combustion ashInfo
- Publication number
- JPH0699054A JPH0699054A JP25457392A JP25457392A JPH0699054A JP H0699054 A JPH0699054 A JP H0699054A JP 25457392 A JP25457392 A JP 25457392A JP 25457392 A JP25457392 A JP 25457392A JP H0699054 A JPH0699054 A JP H0699054A
- Authority
- JP
- Japan
- Prior art keywords
- combustion ash
- shredder dust
- car shredder
- dust combustion
- melting
- 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- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 239000000428 dust Substances 0.000 title claims abstract description 36
- 238000011282 treatment Methods 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000002844 melting Methods 0.000 claims abstract description 27
- 230000008018 melting Effects 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 239000002893 slag Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 13
- 239000002699 waste material Substances 0.000 claims description 10
- 238000010309 melting process Methods 0.000 claims description 6
- 238000004017 vitrification Methods 0.000 claims description 5
- 238000010828 elution Methods 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000007885 magnetic separation Methods 0.000 abstract description 3
- 238000001784 detoxification Methods 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 description 7
- 238000011084 recovery Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical group [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はカーシュレッダダスト燃
焼灰から有価金属の回収を行うとともに燃焼残渣を無害
化処理するカーシュレッダダスト燃焼灰の処理方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating car shredder dust combustion ash for recovering valuable metals from car shredder dust combustion ash and detoxifying combustion residues.
【０００２】[0002]
【従来の技術】自動車のスクラップ廃材として発生する
カーシュレッダダストの分析例を表１に示してある。こ
の表で分るように塩ビ，ゴム，ウレタンフォームの合計
量が７１％以上も含まれるために発熱量が３０００〜４
０００kcal／kgと大きい。2. Description of the Related Art Table 1 shows an example of analysis of car shredder dust generated as scrap scrap material for automobiles. As can be seen from this table, the total amount of PVC, rubber, and urethane foam is more than 71%, so the calorific value is 3000-4.
It is as large as 000 kcal / kg.
【０００３】[0003]
【表１】 [Table 1]
【０００４】従ってこれら廃棄物の有効利用のためにボ
イラで燃焼して電力とか熱の形で回収することができ
る。しかし、カーシュレッダダスト燃焼灰中には未燃分
が多量に含まれ、また廃棄物処理法で規制される金属化
合物を多数含有するなどの理由からカーシュレッダダス
ト燃焼灰は埋立処分が厳しく実際に燃焼処理される例は
少ない。Therefore, in order to effectively use these wastes, they can be burned in a boiler and recovered in the form of electric power or heat. However, because car shredder dust combustion ash contains a large amount of unburned components and contains many metal compounds that are regulated by the Waste Disposal Act, car shredder dust combustion ash must be disposed of in landfills. There are few examples of burning treatment.
【０００５】このように、カーシュレッダダストを熱源
として有効に活用するためにはその燃焼灰の処理方法が
確立されることが必要な状況にある。As described above, in order to effectively utilize the car shredder dust as a heat source, it is necessary to establish a method for treating the combustion ash.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、前記した状
況のもとで、カーシュレッダダスト燃焼灰から有価金属
としての銅等を回収するとともに、埋立などに使用でき
る無害化処理された状態で燃焼残渣を得ることができる
カーシュレッダダスト燃焼灰の処理方法を提供すること
を課題としている。Under the above-mentioned circumstances, the present invention collects copper as a valuable metal from car shredder dust combustion ash and detoxifies it so that it can be used for landfilling. An object of the present invention is to provide a method for treating car shredder dust combustion ash capable of obtaining combustion residues.
【０００７】また、本発明は、カーシュレッダダスト燃
焼灰から有価金属としてのアルミニウムや銅を、それぞ
れ分別回収するとともに少い熱量で処理することができ
るカーシュレッダダスト燃焼灰の処理方法を提供するこ
とを課題としている。Further, the present invention provides a method for treating car shredder dust combustion ash, which is capable of separately collecting valuable metals such as aluminum and copper from the car shredder dust combustion ash and treating them with a small amount of heat. Is an issue.
【０００８】[0008]
【課題を解決するための手段】本発明は、前記した課題
を解決するためカーシュレッダダスト燃焼灰を高温処理
することによって有価金属の回収と無害化処理を行う。
すなわち、本発明ではカーシュレッダダスト燃焼灰を反
射炉とかアーク炉などを利用して１５００℃以上に加熱
して溶融処理を行い有価金属とガラス固化された状態の
廃棄物スラグを得る方法を採用する。In order to solve the above problems, the present invention performs high temperature treatment of car shredder dust combustion ash to recover valuable metals and detoxify them.
That is, the present invention employs a method of heating a car shredder dust combustion ash to 1500 ° C. or more by using a reverberatory furnace or an arc furnace and performing a melting process to obtain a valuable metal and a waste slag in a vitrified state. .
【０００９】また、本発明では、６６０℃以上１１００
℃未満、１１００℃以上という段階的加熱を行うことに
よってアルミニウム、銅を分別回収するとともにガラス
固化された状態の廃棄物スラグを得る方法も採用する。Further, in the present invention, 660 ° C. or more and 1100
A method of separately collecting aluminum and copper by performing stepwise heating at a temperature of less than 1 ° C. and at least 1100 ° C. and obtaining a waste slag in a vitrified state is also adopted.
【００１０】更に、本発明では、カーシュレッダダスト
燃焼灰から予じめ鉄分を磁力分離などで分離したのち前
記した処理を行う処理方法も採用する。Further, the present invention also employs a treatment method in which the pretreatment iron is separated from the car shredder dust combustion ash by magnetic separation or the like and then the above-mentioned treatment is carried out.
【００１１】[0011]
【作用】カーシュレッダダスト燃焼灰には有価金属とし
て銅，アルミニウム，鉄などを含有しており、アルミニ
ウム，銅，鉄の融点はそれぞれ６６０，１０８３，１５
３５℃なのでこれら金属の回収のためには１５００℃以
上の加熱が必要である。一方、カーシュレッダダスト燃
焼灰中にはガラスとか砂などが含有されていて溶融点
（流動点）は最高１５００℃程度である。[Function] Car shredder dust combustion ash contains valuable metals such as copper, aluminum and iron. The melting points of aluminum, copper and iron are 660, 1083 and 15 respectively.
Since it is 35 ° C., heating at 1500 ° C. or higher is required to recover these metals. On the other hand, the combustion ash of car shredder dust contains glass, sand, etc., and the melting point (pour point) is about 1500 ° C. at the maximum.
【００１２】従って、本発明によってカーシュレッダダ
スト燃焼灰を１５００℃以上に加熱処理すると、カーシ
ュレッダダスト燃焼灰はその軟化溶融温度以上に加熱さ
れ、銅，鉄等の高温溶融金属の回収と同時にスラグ分は
ガラス固化されて有害物の溶出のない安定な廃棄物に改
質することができる。Therefore, when the car shredder dust combustion ash is heated to 1500 ° C. or higher according to the present invention, the car shredder dust combustion ash is heated to a temperature higher than its softening melting temperature, and at the same time as the recovery of the high temperature molten metal such as copper and iron, the slag is recovered. The component is vitrified and can be reformed into a stable waste without leaching harmful substances.
【００１３】なお、１５００℃という高温ではアルミニ
ウムの酸化が大きいので、本発明によって、カーシュレ
ッダダスト燃焼灰をまず６６０℃以上１１００℃未満の
低温で第一段の溶解処理を行えばアルミニウムを回収で
きる。また、本発明によって、カーシュレッダダスト燃
焼灰から予じめ磁力分離などで鉄分を分離回収すれば溶
解処理に要する熱量を少くして銅などの回収と、ガラス
固化された状態の残渣スラグを得ることができる。Since aluminum is highly oxidized at a temperature as high as 1500 ° C., according to the present invention, aluminum can be recovered by first carrying out the melting treatment of car shredder dust combustion ash at a low temperature of 660 ° C. or higher and less than 1100 ° C. . Further, according to the present invention, if the iron is separated and recovered from the car shredder dust combustion ash in advance by magnetic separation or the like, the heat amount required for the melting process is reduced to recover copper and the like, and the residual slag in a vitrified state is obtained. be able to.
【００１４】本発明は以上の作用でカーシュレッダダス
ト燃焼灰に対し金属の回収とガラス固化の二つの処理を
溶解処理によって可能とする。With the above operation, the present invention makes it possible to perform two treatments on the car shredder dust combustion ash, that is, metal recovery and vitrification by melting treatment.
【００１５】[0015]
【実施例】以下本発明を実施例によって説明する。表１
に示した構成をもつカーカーシュレッダダストを回転炉
床型の焼却炉（燃焼量廃タイヤベースで２００kg/h）で
燃焼処理したときの燃焼灰の組成を表２に示した。EXAMPLES The present invention will be described below with reference to examples. Table 1
Table 2 shows the composition of the combustion ash when the carker shredder dust having the configuration shown in Fig. 1 is burned in a rotary hearth type incinerator (burning amount waste tire base: 200 kg / h).
【００１６】[0016]
【表２】 [Table 2]
【００１７】表２において小粒のものと大粒のものでは
多少成分の違いが予想されたところからサイズを１mmを
基準にして上下に分けて示している。表２において金属
以外にSiO2、CaO が多量含まれているが、これはガラ
ス，砂の混入或いは塩ビの充填材などに起因するもので
ある。In Table 2, the sizes of the small particles and the large particles are shown in the upper and lower parts with a reference of 1 mm from the fact that some differences in the components are expected. In Table 2, a large amount of SiO 2 and CaO are contained in addition to metals, which is due to the inclusion of glass, sand, or vinyl chloride filler.
【００１８】これらの無機化合物のうち、SiO2を主体に
した化合物がNa2O、K2O 等の融点低下物の介在で低融点
化しガラス固化の原因物質となる。この様な組成の燃焼
灰９．１kgを使用してアーク溶融炉による溶融処理を行
った。溶融炉は内容積８リットルで黒鉛電極を使用し出力電
圧３５〜７５Ｖ（ＤＣ）、７００〜１００Ａの条件で起
動時アーク方式、定常時エレクトロスラグ方式による溶
融処理である。Of these inorganic compounds, a compound mainly composed of SiO 2 has a low melting point due to the inclusion of a melting point-decreasing substance such as Na 2 O or K 2 O and becomes a causative substance for vitrification. Using 9.1 kg of combustion ash having such a composition, melting treatment was performed in an arc melting furnace. The melting furnace has an internal volume of 8 liters, uses a graphite electrode, and has an output voltage of 35 to 75 V (DC) and 700 to 100 A under the conditions of a starting arc method and a steady-state electroslag method.
【００１９】起動時には導電性が低いために電極間に発
生するアークによる溶解が支配的で電圧３５〜４５Ｖ、
電流４５０〜６５０Ａの高電流溶解であるが１０分程度
溶解が進むと導電性溶解浴が生成し１００〜２００Ａの
低電流で継続的、安定な溶解が行われる。この後者の溶
解処理域をエレクトロスラグ方式と呼称した。Since the conductivity is low at the time of start-up, melting due to the arc generated between the electrodes is dominant, and the voltage is 35 to 45 V.
The current is 450 to 650A, but the current is 450 to 650A. When the melting progresses for about 10 minutes, a conductive dissolution bath is formed, and continuous and stable melting is performed at a low current of 100 to 200A. This latter dissolution treatment area was called the electroslag method.
【００２０】この様な状況で約１時間の溶融処理により
上部にスラグ層、下部に溶融金属層を得、これを室温固
化してそれぞれスラグのガラス固化品５．５kg及び金属
固化品１．７kgを得た。チャージした燃焼灰量は合計９
kgなので溶融処理により減量が見られるが、これは燃焼
灰中に多量に含まれる未燃分の減量によるものである。Under such a condition, a slag layer is obtained in the upper part and a molten metal layer is obtained in the lower part by a melting treatment for about 1 hour, and these are solidified at room temperature to obtain 5.5 kg of a vitrified product and 1.7 kg of a solidified metal product. Got The total amount of combustion ash charged is 9
Since the weight is kg, the weight loss can be seen due to the melting process, but this is due to the weight loss of the unburned component contained in the combustion ash in a large amount.
【００２１】金属固化品は二層に分れ下層は黄銅色をし
た銅主成分のもの、上層は銀白色で鉄が主成分になって
いる。この組成を表３に示した。The metal solidified product is divided into two layers, the lower layer is made of brass-colored copper as a main component, and the upper layer is silver-white and mainly made of iron. This composition is shown in Table 3.
【００２２】[0022]
【表３】 [Table 3]
【００２３】比重差により一応銅と鉄に分れているもの
のそれぞれに少量の鉄、銅の混入があるがこれは溶解過
程で溶融浴内の乱れがあり比重差による沈降分離が効果
的に行われなかったことによると思われる。スラグ層の
方は粒子表面、内部ともに充分にガラス化が進行してい
る。Although a small amount of iron or copper is mixed in each of the substances which are tentatively separated into copper and iron due to the difference in specific gravity, this is due to turbulence in the melting bath during the melting process, and sedimentation separation due to the difference in specific gravity is effective. Probably because I was not told. In the slag layer, vitrification has progressed sufficiently on both the surface and inside of the particles.
【００２４】これは溶解処理中のスラグ浴表面温度が１
７００〜１８００℃になっており、この燃焼灰の軟化溶
融特性を示した表４の流動点１４５０℃を充分越えた温
度域でガラス質のものが溶出しガラス化が達成されてい
るものである。This is because the surface temperature of the slag bath during the melting process is 1
The temperature is 700 to 1800 ° C., and the vitreous substance is eluted and vitrification is achieved in the temperature range sufficiently exceeding the pour point 1450 ° C. in Table 4 showing the softening and melting characteristics of this combustion ash. .
【００２５】[0025]
【表４】 [Table 4]
【００２６】このガラス固化の効果で有害物の溶出が抑
制される。表５はこのガラス固化スラグを産業廃棄物の
埋立処分に係る基準に従って溶出試験を行った結果を示
したものでありそれぞれの有害物の許容基準内に充分に
入っているのが認められる。Elution of harmful substances is suppressed by the effect of this glass solidification. Table 5 shows the results of the elution test of this vitrified slag according to the standard for landfill disposal of industrial waste, and it is recognized that each of the vitrified slag is well within the allowable standard of each harmful substance.
【００２７】[0027]
【表５】 [Table 5]
【００２８】以上からこの様な高温溶融処理が金属の回
収と、同時に発生するスラグの無害化処理の両方を効果
的に果すことが分り、この方法に於いて初めてカーシュ
レッダダストの燃焼による熱回収の実用化を可能にする
と言える。この試験では特にアルミニウムの回収は行わ
なかったが、アルミニウムについてもその融点の６６０
℃以上の近辺の温度で先ず第１段の熱処理を行えば回収
が可能である。From the above, it can be seen that such a high temperature melting treatment effectively performs both the recovery of metal and the detoxification of slag that occurs at the same time, and for the first time in this method, heat recovery by combustion of car shredder dust is carried out. It can be said that it will be possible to put into practical use. Although aluminum was not particularly recovered in this test, aluminum also had a melting point of 660.
It can be recovered by first performing the first stage heat treatment at a temperature in the vicinity of ° C or higher.
【００２９】なおカーシュレッダダスト燃焼灰の場合、
前述のように高温溶解の必要な鉄を多量に含んでいるが
これらの鉄を事前に磁力分留等の適宜の公知の手段で分
離しておけば溶解に必要な熱量を低減することが可能と
なる。In the case of car shredder dust combustion ash,
As mentioned above, it contains a large amount of iron that needs to be melted at high temperature, but if these irons are separated in advance by an appropriate known means such as magnetic fractionation, the amount of heat required for melting can be reduced. Becomes
【００３０】[0030]
【発明の効果】カーシュレッダダストには各種の有害物
質を含むために燃焼灰の無害化法を確立しない限り燃焼
によるエネルギー回収が実質的に困難であるが本発明に
よりカーシュレッダダスト燃焼灰を高温加熱溶融処理す
ることによって銅，鉄などの金属成分を回収するととも
に、廃棄物スラグは有害物質が流出しないガラス固化さ
れた状態となりこれを埋立などに使うことができる。EFFECTS OF THE INVENTION Since car shredder dust contains various harmful substances, it is practically difficult to recover energy by combustion unless a method for detoxifying combustion ash is established. By heating and melting the metal components such as copper and iron, the waste slag becomes a vitrified state in which harmful substances do not flow out and can be used for landfilling.
【００３１】また、本発明によって前記した高温加熱溶
融処理に対して低温処理法を付加した処理方法を採用す
ればアルミニウムなどの有価金属の回収を可能とし、産
業廃棄物の資源化利用が可能となる。Further, by adopting a treatment method in which a low temperature treatment method is added to the above-mentioned high temperature heating and melting treatment according to the present invention, valuable metals such as aluminum can be recovered and industrial waste can be utilized as a resource. Become.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 島本 滝二郎 長崎市深堀町５丁目717番１号 三菱重工 業株式会社長崎研究所内 (72)発明者 小山 智規 長崎市深堀町５丁目717番１号 三菱重工 業株式会社長崎研究所内 (72)発明者 荒牧 幹雄 長崎市深堀町５丁目717番地１ 長菱エン ジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takijiro Shimamoto 5-717-1, Fukahori-cho, Nagasaki City Mitsubishi Heavy Industries, Ltd. Nagasaki Research Institute (72) Inventor Tomoki Koyama 5-717-1, Fukahori-cho, Nagasaki-shi (72) Inventor, Mikio Aramaki 5-717, Fukahori-cho, Nagasaki City Nagahishi Engineering Co., Ltd.
Claims (4)
℃以上の高温で溶融処理を行ない銅、鉄等の金属成分を
回収するとともに有害物質の溶出のないガラス固化され
た状態の廃棄物スラグを得ることを特徴とするカーシュ
レッダダスト燃焼灰の処理方法。1. 1500 pieces of car shredder dust combustion ash
A method for treating car shredder dust combustion ash, characterized by performing melting treatment at a high temperature of ℃ or higher to recover metal components such as copper and iron and obtaining waste slag in a vitrified state without elution of harmful substances .
以上１１００℃未満の温度で第一段の溶解処理によりア
ルミニウムの分別回収を行ったあと１５００℃以上の温
度で第二段の高温溶解により銅及び鉄を回収するととも
に有害物質の溶出のないガラス固化された状態の廃棄物
スラグを得ることを特徴とするカーシュレッダダスト燃
焼灰の処理方法。2. Car shredder dust combustion ash at 660 ° C.
The aluminum is separated and recovered by the first melting process at a temperature of less than 1100 ° C, and then the copper and iron are recovered by the second high temperature melting at a temperature of 1500 ° C or more and vitrification without elution of harmful substances. A method for treating car shredder dust combustion ash, which comprises obtaining waste slag in a crushed state.
鉄分を除去したあと１１００℃以上の温度で溶解処理を
行ない銅を主成分とする金属成分の回収を行うととも
に、有害物質の溶出のないガラス固化された状態の廃棄
物スラグを得ることを特徴とするカーシュレッダダスト
燃焼灰の処理方法。3. A glass that does not elute harmful substances, while removing preliminarily iron from car shredder dust combustion ash and then performing a melting treatment at a temperature of 1100 ° C. or higher to recover metal components containing copper as a main component. A method for treating car shredder dust combustion ash, which comprises obtaining waste slag in a solidified state.
鉄分を除去したあと６６０℃以上１１００℃未満の温度
で第一段の溶解処理によりアルミニウムの分別回収を行
ったあと、１１００℃以上の温度で第二段の溶解処理を
行い銅を主成分とする金属成分の回収を行うとともに有
害物質の溶出のないガラス固化された状態の廃棄物スラ
グを得ることを特徴とするカーシュレッダダスト燃焼灰
の処理方法。4. After removing preliminarily iron from the car ash shredder dust combustion ash, the aluminum is fractionally recovered by a first stage melting treatment at a temperature of 660 ° C. or higher and lower than 1100 ° C., and then at a temperature of 1100 ° C. or higher. Treatment of car shredder dust combustion ash characterized by vitrified waste slag that does not elute harmful substances while performing second stage dissolution treatment to recover metal components mainly composed of copper Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25457392A JPH0699054A (en) | 1992-09-24 | 1992-09-24 | Treatment of car shredder dust combustion ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25457392A JPH0699054A (en) | 1992-09-24 | 1992-09-24 | Treatment of car shredder dust combustion ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0699054A true JPH0699054A (en) | 1994-04-12 |
Family
ID=17266925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25457392A Withdrawn JPH0699054A (en) | 1992-09-24 | 1992-09-24 | Treatment of car shredder dust combustion ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0699054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0718577A3 (en) * | 1994-12-24 | 1997-06-04 | Abb Kk | Electric resistance oven |
-
1992
- 1992-09-24 JP JP25457392A patent/JPH0699054A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0718577A3 (en) * | 1994-12-24 | 1997-06-04 | Abb Kk | Electric resistance oven |
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| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991130 |