JPH022932B2 - - Google Patents
Info
- Publication number
- JPH022932B2 JPH022932B2 JP15182486A JP15182486A JPH022932B2 JP H022932 B2 JPH022932 B2 JP H022932B2 JP 15182486 A JP15182486 A JP 15182486A JP 15182486 A JP15182486 A JP 15182486A JP H022932 B2 JPH022932 B2 JP H022932B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- scraps
- electronic component
- valuable metals
- furnace
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 23
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 150000002739 metals Chemical class 0.000 claims description 12
- 239000012141 concentrate Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 238000003723 Smelting Methods 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
【発明の詳細な説明】 発明の技術分野 本発明は、有価金属の回収方法に関する。[Detailed description of the invention] Technical field of invention The present invention relates to a method for recovering valuable metals.
特には、電子部品屑等の有価金属である、金、
銀等の回収に関する。 In particular, gold, which is a valuable metal such as electronic component scrap,
Concerning the recovery of silver, etc.
発明の従来技術
電子産業の著しい発展に伴い、有価金属である
金、銀を含有する電子部品屑が、大量に発生して
いる。BACKGROUND OF THE INVENTION With the remarkable development of the electronic industry, a large amount of electronic component scrap containing valuable metals such as gold and silver is being generated.
しかしながら、電子部品屑は、黒煙発生源であ
る樹脂を多量に含んでおり、銅製錬で従来行われ
ていた様に故銅処理と同様に処理するとすれば、
以下の問題を生ずる。 However, electronic component scrap contains a large amount of resin, which is a source of black smoke, and if it were to be treated in the same way as copper smelting, as was conventionally done in copper smelting,
This causes the following problems.
即ち、銅転炉装入口からボートで装入し、可燃
物のみ燃焼させ、有価金属を銅中に回収する方法
で、処理するとすれば、前記のごとく大量に樹脂
を含んでいるため、黒煙を発生し、作業環境を悪
化し、硫酸の品質を悪化する等の問題を生ずる。
そのために、大量の処理ができず、一般には、乾
留炉で乾留したり、粉砕機で粉砕する等の前処理
を行つた後に、反射炉、自溶炉等の銅製錬炉へ装
入し、金銀等の回収を行つている。このため、前
処理コストがかかる。 In other words, if the copper converter is charged by boat from the charging port, only the combustible materials are burned, and the valuable metals are recovered in the copper. This causes problems such as deterioration of the working environment and deterioration of the quality of sulfuric acid.
For this reason, it is not possible to process large quantities, and in general, after performing pretreatment such as carbonization in a carbonization furnace or pulverization in a crusher, the process is charged into a copper smelting furnace such as a reverberatory furnace or a flash furnace. We are collecting gold and silver. Therefore, pretreatment costs are high.
本発明者等は、鋭意検討した結果、従来技術の
問題点を解決すべく以下の発明をなした。 As a result of intensive studies, the present inventors have made the following invention in order to solve the problems of the prior art.
発明の構成
本発明は、銅転炉における電子部品屑等中の有
価金属の回収において、電子部品屑等を造銅期を
中断せず、吹錬中に投入することを特徴とする有
価金属の回収方法に関する。Composition of the Invention The present invention is a method for collecting valuable metals from electronic parts scraps, etc. in a copper converter, in which the electronic parts scraps, etc. are fed into the blowing process without interrupting the copper making stage. Regarding the collection method.
また、その実施態様として、次の発明を提案す
る。 Further, as an embodiment thereof, the following invention is proposed.
即ち、磁選精鉱と電子部品屑等を予め混合し
て、炉煩ビン、装入ベルコン、装入シユートを介
して転炉に装入することを特徴とする上記有価金
属の回収方法、電子部品屑等の大きさが40mm角以
下であることを特徴とする上記有価金属の回収方
法、電子部品屑等を銅シート等で包み、プレス成
形し炉に挿入することを特徴とする有価金属の回
収方法に関する。 That is, the above-mentioned method for recovering valuable metals and electronic components, which is characterized in that magnetically separated concentrate and electronic component scraps are mixed in advance and charged into a converter via a furnace bin, a charging bell container, and a charging chute. The above-mentioned method for collecting valuable metals is characterized in that the size of the scraps, etc. is 40 mm square or less, and the collection of valuable metals is characterized in that electronic component scraps, etc. are wrapped in a copper sheet, etc., press-formed, and inserted into a furnace. Regarding the method.
発明の具体的説明
本発明で、対象となる電子部品屑等とは、プラ
スチツク、セラミツク等の基板に電子部品が配置
されているものであり、金、銀等の有価金属を含
むものである。DETAILED DESCRIPTION OF THE INVENTION In the present invention, electronic component scraps and the like are those in which electronic components are arranged on substrates such as plastics and ceramics, and contain valuable metals such as gold and silver.
上記の処理に当たり、本発明においては、銅精
錬における転炉で処理するものである。 In the present invention, the above treatment is carried out in a converter in copper refining.
銅製錬においては、自溶炉等の溶錬炉で銅〓を
造り、これをＰ・Ｓ転炉等において、酸化処理す
るのであるが、この処理における造銅期に、上の
電子部品屑等を投入するものである。 In copper smelting, copper is produced in a smelting furnace such as a flash smelting furnace, and then oxidized in a P/S converter. It is intended to invest.
造銅期とは、硫化銅である〓を酸化処理し、イ
オウを除去する工程である。 The copper making stage is the process of oxidizing copper sulfide and removing sulfur.
特に、造銅期を中断せず吹錬中に投入すること
が好ましい。溶体と良く接触し、完全燃焼するか
らである。 In particular, it is preferable to introduce the copper into the blowing process without interrupting the copper making process. This is because it comes into good contact with the solution and burns completely.
さらに、酸素が過剰に炉内に送入されるため、
この酸素により、電子部品屑等に含まれている樹
脂が、完全に燃焼し、意外にも排ガスの黒煙化を
生ずることなく、ひいては、排ガス中のSO2を硫
酸としている処理においても、硫酸の変色を生ぜ
ず好ましい。 In addition, too much oxygen is fed into the furnace;
This oxygen completely burns the resin contained in electronic parts scraps, etc., and surprisingly, the exhaust gas does not turn into black smoke. It is preferable because it does not cause discoloration.
装入は、例えば、ガス排出用煙道に設置された
装入シユートより装入される。 Charge is made, for example, from a charge chute installed in a gas exhaust flue.
また、装入に際しては、銅製錬の場合であれ
ば、磁選精鉱と予め混合して、装入することが好
ましい。 In addition, when charging, in the case of copper smelting, it is preferable to mix it with magnetically separated concentrate in advance and charge it.
たな吊り等のトラブルがなく、投入がスムーズ
に行われるからである。 This is because there are no troubles such as hanging, and the feeding is done smoothly.
上記の場合、磁選精鉱と電子部品屑等の混合比
率で好ましい重量比は、１：２〜２：１である。 In the above case, the preferred mixing ratio of magnetically separated concentrate and electronic component scraps is 1:2 to 2:1.
また、電子部品屑等の大きさは、40mm角以下が
好ましい。投入が行い易いからである。また、他
の装入方法としては、電子部品屑等を銅シート等
で包みプレス成形し炉に装入することもできる。
本発明では、造銅期の吹錬時に上記屑を投入する
ことにより、意外にも黒鉛を発生しないことを見
い出したものである。 Further, the size of electronic component scraps, etc. is preferably 40 mm square or less. This is because it is easy to input. In addition, as another charging method, electronic component scraps and the like may be wrapped in a copper sheet and the like and press-formed and then charged into the furnace.
In the present invention, it has been surprisingly discovered that graphite is not generated by adding the above-mentioned scraps during blowing during the copper manufacturing stage.
以上のように、本発明を実施することにより、
以下の効果を有する。 As described above, by implementing the present invention,
It has the following effects.
発明の効果
(1) 樹脂等を含む電子部品屑等の処理を行つても
黒煙を生ぜずに処理が可能である。Effects of the invention (1) Electronic component scraps containing resin etc. can be processed without producing black smoke.
(2) SO2ガスの回収工程である硫酸製造工程にお
ける硫酸の濁度を上昇させることがない。(2) It does not increase the turbidity of sulfuric acid in the sulfuric acid manufacturing process, which is the SO 2 gas recovery process.
(3) 本発明によれば、炉煩ビンでのたな吊りを生
ずることなく、スムーズな処理が可能となる。(3) According to the present invention, smooth processing is possible without causing hanging in the furnace bin.
実施例 １
電子部品屑の一つである樹脂付き金銀滓と、銅
製錬で発生する磁選精鉱を１：１の比率で予め混
合する。Example 1 Resin-coated gold and silver slag, which is one of electronic component scraps, and magnetically separated concentrate generated in copper smelting are mixed in advance at a ratio of 1:1.
混合したものをベルコンで第１図に示す炉煩ビ
ン１まで搬上し、振動フイーダー２で切り出し、
装入ベルコン３、煙道５を通過する装入シユート
４を通り、転炉の装入口６より、転炉７に装入し
た。 The mixed material is transported to the furnace bin 1 shown in Fig. 1 using a belt converter, cut out using a vibrating feeder 2, and
It passed through a charging chute 4 that passed through a charging belt converter 3 and a flue 5, and was charged into a converter 7 through a charging port 6 of the converter.
装入時期は、造銅期中間以後の酸素が十分にあ
り、炉の温度が上昇しているときとした。 The charging period was set to be after the middle of the copper production period, when there was sufficient oxygen and the temperature of the furnace was rising.
数分で数トンの電子部品屑の処理が可能であ
り、含有している金銀を有効に銅メタル中に回収
した。 Several tons of electronic component scraps can be processed in a few minutes, and the gold and silver contained therein can be effectively recovered into copper metal.
排ガスの黒煙化は、生じることなく、排ガスの
SO2回収工程である硫酸工程において、硫酸の汚
濁もなく好ましい操業が可能であつた。 The exhaust gas does not turn into black smoke, and the exhaust gas
In the sulfuric acid process, which is the SO 2 recovery process, favorable operation was possible without sulfuric acid pollution.
第１図は、本発明の一実施態様を示す。
１は、炉煩ビン、２は、振動フイーダ、３は、
装入ベルトコンベヤ、４は、装入シユート、５
は、煙道、６は、装入口、７は、転炉である。
FIG. 1 shows one embodiment of the invention. 1 is a furnace bin, 2 is a vibration feeder, 3 is a
Charging belt conveyor, 4, charging chute, 5
is a flue, 6 is a charging port, and 7 is a converter.
Claims (1)
回収において、電子部品屑等を造銅期を中断せ
ず、吹錬中に投入することを特徴とする有価金属
の回収方法。 ２ 磁選精鉱と電子部品屑等を予め混合して、炉
煩ビン、装入ベルコン、装入シユートを介して転
炉に装入することを特徴とする、特許請求の範囲
第１項記載の有価金属の回収方法。 ３ 電子部品屑等の大きさが40mm角以下であるこ
とを特徴とする、特許請求の範囲第１項記載の有
価金属の回収方法。 ４ 電子部品屑等を銅シート等で包み、プレス成
形し炉に装入することを特徴とする、特許請求の
範囲第１項記載の有価金属の回収方法。[Claims] 1. A method for recovering valuable metals from electronic parts scraps, etc. in a copper converter, characterized in that the electronic parts scraps, etc. are fed into the blowing process without interrupting the copper making stage. Collection method. 2. The method according to claim 1, characterized in that magnetically separated concentrate and electronic component scraps are mixed in advance and charged into a converter via a furnace bin, a charging bell container, and a charging chute. Method of recovering valuable metals. 3. The method for recovering valuable metals according to claim 1, characterized in that the size of electronic component scraps, etc. is 40 mm square or less. 4. A method for recovering valuable metals as set forth in claim 1, which comprises wrapping electronic component scraps in a copper sheet or the like, press-forming them, and charging them into a furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61151824A JPS6311627A (en) | 1986-06-30 | 1986-06-30 | Method for recovering valuable metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61151824A JPS6311627A (en) | 1986-06-30 | 1986-06-30 | Method for recovering valuable metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6311627A JPS6311627A (en) | 1988-01-19 |
| JPH022932B2 true JPH022932B2 (en) | 1990-01-19 |
Family
ID=15527116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61151824A Granted JPS6311627A (en) | 1986-06-30 | 1986-06-30 | Method for recovering valuable metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03126943U (en) * | 1990-04-06 | 1991-12-20 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4595065B2 (en) * | 2000-09-27 | 2010-12-08 | Ｊｘ日鉱日石金属株式会社 | Processing method by solidification of copper concentrate and solidified copper concentrate |
| JP4699497B2 (en) * | 2008-07-08 | 2011-06-08 | Ｊｘ日鉱日石金属株式会社 | Recycled raw material processing method |
| JP6228843B2 (en) * | 2013-12-26 | 2017-11-08 | パンパシフィック・カッパー株式会社 | Disposal of electrical and electronic parts waste in copper smelting |
| CN104818363B (en) * | 2015-04-21 | 2017-03-15 | 中国恩菲工程技术有限公司 | Converter Loading Control System |
-
1986
- 1986-06-30 JP JP61151824A patent/JPS6311627A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03126943U (en) * | 1990-04-06 | 1991-12-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6311627A (en) | 1988-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |