JPS6146528B2 - - Google Patents
Info
- Publication number
- JPS6146528B2 JPS6146528B2 JP10994481A JP10994481A JPS6146528B2 JP S6146528 B2 JPS6146528 B2 JP S6146528B2 JP 10994481 A JP10994481 A JP 10994481A JP 10994481 A JP10994481 A JP 10994481A JP S6146528 B2 JPS6146528 B2 JP S6146528B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen reduction
- plating
- metal
- hydrogen
- roasted
- 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
Links
- 239000001257 hydrogen Substances 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 150000002739 metals Chemical class 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 4
- 238000007747 plating Methods 0.000 description 13
- 239000010802 sludge Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- 229940044654 phenolsulfonic acid Drugs 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 102100036092 Alpha-endosulfine Human genes 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101000876352 Homo sapiens Alpha-endosulfine Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical class [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 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】
この発明はメツキスラツジから有用金属を高品
位で回収するための処理方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing method for recovering useful metals from Metsuki Sludge in high quality.
衆知の如く、鋼帯の電気メツキにおいて、長時
間操業を継続していくと、メツキタンクの底部に
メツキ液組成及びその他の物質を含有するスラツ
ジが蓄積する。このスラツジが多量に蓄積すると
これがメツキ液中に浮遊し、メツキの品質に悪影
響を与えることから、このスラツジを定期的に排
出する必要がある。ところがこの排出スラツジ中
にはメツキ金属がかなりの量含有されており、こ
のメツキ金属を回収再使用することは、省資源の
見地からも重要であり、従来からもメツキスラツ
ジから有用金属を回収する技術が種々提案されて
いる。メツキスラツジから有用金属を回収する１
つの有効技術としてカーボン還元法、水素還元法
が知られており、これはスラツジ中に含まれてい
る金属の酸化物を還元する方法であるが、回収
率、回収物の純度の点から水素還元法が好まし
い。 As is well known, when electroplating steel strips is operated for a long period of time, sludge containing the plating liquid composition and other substances accumulates at the bottom of the plating tank. If a large amount of this sludge accumulates, it will float in the plating solution and have an adverse effect on the quality of plating, so it is necessary to periodically discharge this sludge. However, this discharged sludge contains a considerable amount of metal plating, and collecting and reusing this plating metal is important from the perspective of resource conservation. Various proposals have been made. Collecting useful metals from Metsuki Suratsuji 1
Carbon reduction method and hydrogen reduction method are known as two effective techniques.This is a method for reducing metal oxides contained in sludge, but from the viewpoint of recovery rate and purity of recovered material, hydrogen reduction method is law is preferred.
ところが、衆知のフエロスタンタイプの電気
Snメツキに於いては、必須成分として、フエノ
ールスルフオン酸（PSA）、光沢剤（EN，
ENSA）等の有機物質が含有されており、上記の
水素還元法による処理では有機物質が水素還元工
程において分解して一部炭化し、回収金属中にこ
れが混入し、回収金属の品位を低下させると共に
回収金属の性状を劣化させるという欠点があつ
た。 However, the common knowledge of Feurostan type electricity
In Sn plating, the essential ingredients are phenolsulfonic acid (PSA), brighteners (EN,
ENSA), etc., and in the hydrogen reduction process described above, the organic substances decompose and partially carbonize in the hydrogen reduction process, which mixes into the recovered metal and reduces the quality of the recovered metal. At the same time, it also had the disadvantage of deteriorating the properties of the recovered metal.
この発明は上記の欠点を排除するためになされ
たもので、メツキスラツジを水素還元する前処理
として乾燥、焙焼して有機物質を熱分解除去する
と共にその他の物質も同時に除する焙焼処理した
後、生成した焙焼物から有用金属を効率良く回収
する水素還元法を提案するものである。 This invention was made in order to eliminate the above-mentioned drawbacks, and as a pre-treatment for hydrogen reduction of Metsukisuratsuji, organic substances are removed by thermal decomposition by drying and roasting, and other substances are also removed at the same time. , we propose a hydrogen reduction method to efficiently recover useful metals from the roasted products produced.
以下発明の内容を詳細に説明する。 The content of the invention will be explained in detail below.
メツキスラツジは、メツキタンク、ドラツグア
ウトタンク、水洗タンク等から適宜排出する。こ
のメツキスラツジは所望の方法により乾燥する。
乾燥後は焙焼処理を通常ロータリーキルンで行な
うが、その他の炉であつても差支えない。焙焼処
理条件としては、酸化性雰囲気中で行なうが、低
温の場合には有機物の熱分解除去が困難であり、
一方あまり高温であると有用金属酸化物の昇華が
激しくなるので、通常は600〜1000℃の範囲好ま
しくは850℃以下で適当時間行なう。かくして得
られた焙焼物は、有機物及びその他の物質の含有
量は極少で、実質的に鉄（ストリツプより持ち込
まれたもの）及び錫の酸化物よりなる粉末ないし
は顆粒状の水素還元に対しても好都合な性状のも
のが得られる。この焙焼物は続いて水素還元に供
される訳であるが、雰囲気としては高水素濃度が
好ましいが、例えばH2が５％以上残部N2の混合
気であつても差支えない。温度は500〜900℃が適
当で、所定時間還元処理する。 Discharge the sludge from the methane tank, dragout tank, washing tank, etc. as appropriate. This Metsuki Suratsuji is dried by a desired method.
After drying, roasting is usually performed in a rotary kiln, but other furnaces may also be used. The roasting process is carried out in an oxidizing atmosphere, but it is difficult to thermally decompose and remove organic matter at low temperatures.
On the other hand, if the temperature is too high, the sublimation of the useful metal oxide will be severe, so it is usually carried out at a temperature in the range of 600 to 1000°C, preferably 850°C or less, for an appropriate time. The roasted product thus obtained has a very low content of organic matter and other substances, and is resistant to hydrogen reduction in the form of powder or granules consisting essentially of iron (brought in from the strip) and tin oxides. Advantageous properties are obtained. This roasted product is subsequently subjected to hydrogen reduction, and the atmosphere preferably has a high hydrogen concentration, but it may be a mixture of 5% or more H 2 and the balance N 2 , for example. The appropriate temperature is 500 to 900°C, and the reduction treatment is carried out for a predetermined period of time.
この水素還元に於いて焙焼物を収容し有用金属
を回収する方法として、一般に傾斜法、即ち傾斜
板上に焙焼物を均一に載せて還元した金属を下方
へ流下させ回収する方法が採用できるが、この方
法よりもガスとの接触面積が大きく且つ作業性の
良い方法として、本発明による網目容器収納方式
が推奨される。この詳細を第１図に示す。図にお
いて１は水素還元炉２は網目容器架台、３は架台
２に置かれた網目容器で全周は網４により構成さ
れ、底面は多孔板５が設けられている。この多孔
板５下の架台２の下には金属回収皿６を配置す
る。 In this hydrogen reduction, as a method for storing the roasted material and recovering useful metals, the tilting method, that is, a method in which the roasted material is placed uniformly on an inclined plate and the reduced metal is allowed to flow downward and be recovered, can be adopted. The mesh container storage method according to the present invention is recommended as a method that has a larger contact area with the gas and has better workability than this method. The details are shown in FIG. In the figure, reference numeral 1 denotes a hydrogen reduction furnace 2, and numeral 3 denotes a mesh container placed on the mount 2. The entire circumference is constituted by a mesh 4, and the bottom surface is provided with a perforated plate 5. A metal recovery pan 6 is arranged below the pedestal 2 under the perforated plate 5.
すなわち、焙焼物Ｈ網目容器３内に収納した
後、網目容器３は水素還元炉１内に入れられ、水
素にて加熱還元される。焙焼物網４を通過する水
素により還元され、溶融し溶融還元金属は多孔板
５から滴下して金属回収皿６に回収される。 That is, after the roasted material H is stored in the mesh container 3, the mesh container 3 is placed in the hydrogen reduction furnace 1 and heated and reduced with hydrogen. The metal is reduced by the hydrogen passing through the roasted material screen 4, and the molten reduced metal drips from the perforated plate 5 and is collected in the metal collection tray 6.
かくして本発明によれば回収された有用金属は
回収率が高く且つ高品位であるという特徴を有し
ており、メツキ浴へ再使用されて省資源の目的が
達成される。 Thus, according to the present invention, the recovered useful metals are characterized by a high recovery rate and high quality, and are reused in the plating bath, achieving the purpose of resource conservation.
実施例
フエロスタンタイプの電気Snメツキにおける
メツキ浴組成は次の通りである。Example The plating bath composition for ferrostan type electric Sn plating is as follows.
PSA 60ｇ／
Sn 30ｇ／
光沢剤 ５ｇ／
メツキタンク中の上記メツキ液を、メツキ操作
中フイルターに循環し、このフイルターに溜つた
スラジをプレスによつて脱水後、ロータリーキル
ン中で次の条件で乾燥及び焙焼をおこなつた。PSA 60g/Sn 30g/Brightener 5g/The above plating liquid in the plating tank is circulated through a filter during the plating operation, and the sludge collected in this filter is dehydrated by a press, and then dried and roasted in a rotary kiln under the following conditions. I did the grilling.
(1) 雰囲気 空気比 1.6
(2) 燃 料 プロパン
(3) 温 度 入側 400℃、出側 850℃
(4) 処理時間 約１時間
(5) 焙焼物の主要組成（wt％）
Ｔ−Sn 75.15
Fe 0.65
Ｃ 0.27（焙焼前C5.03）
Ｓ 0.54
次いで上記の焙焼物を、次の条件で水素還元処
理した。
(1) Atmosphere Air ratio 1.6 (2) Fuel Propane (3) Temperature 400℃ on the inlet side, 850℃ on the outlet side (4) Processing time Approximately 1 hour (5) Main composition of roasted product (wt%) T-Sn 75.15 Fe 0.65 C 0.27 (C5.03 before roasting) S 0.54 Next, the above roasted product was subjected to hydrogen reduction treatment under the following conditions.
(1) 処理量 6ton／回
(2) 雰囲気 H288％残N2
(3) 温 度 800℃
(4) 処理時間
傾斜法（還元面積５m2）……120時間
網目容器法（還元面積10.5m2）60時間
(5) 回収物の組成（wt％）
Sn 99.85（収率80％）
Fe 0.18
Ｃ 0.01
Ｓ 0.01
(1) Processing amount 6 tons/time (2) Atmosphere H 2 88% residual N 2 (3) Temperature 800℃ (4) Processing time Incline method (reduction area 5 m 2 )...120 hours Mesh container method (reduction area 10.5 m 2 ) 60 hours (5) Composition of recovered material (wt%) Sn 99.85 (yield 80%) Fe 0.18 C 0.01 S 0.01
第１図は本発明方法に使用する網目容器の説明
図である。
１……水素還元炉、２……網目容器架台、３…
…網目容器、４……網、５……多孔板、６……金
属回収皿。
FIG. 1 is an explanatory diagram of a mesh container used in the method of the present invention. 1...Hydrogen reduction furnace, 2...Mesh container stand, 3...
...Mesh container, 4...Net, 5...Perforated plate, 6...Metal collection tray.
Claims (1)
して有用金属を回収するに際し、水素還元前にメ
ツキスラツジを焙焼して有機物を熱分解除去した
後、生成した焙焼物を網目容器内に入れて水素還
元することにより高品位の有用金属を回収するこ
とを特徴とする、メツキスラツジの処理方法。1. When recovering useful metals by hydrogen-reducing Metsuki-Suratsuji containing organic matter, the Metsuki-Suratsuji is roasted before hydrogen reduction to thermally decompose and remove the organic matter, and then the resulting roasted product is placed in a mesh container and subjected to hydrogen reduction. A method for processing Metsukisuratsuji, which is characterized by recovering high-grade useful metals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56109944A JPS5811749A (en) | 1981-07-16 | 1981-07-16 | Treatment method of plating sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56109944A JPS5811749A (en) | 1981-07-16 | 1981-07-16 | Treatment method of plating sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5811749A JPS5811749A (en) | 1983-01-22 |
| JPS6146528B2 true JPS6146528B2 (en) | 1986-10-15 |
Family
ID=14523067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56109944A Granted JPS5811749A (en) | 1981-07-16 | 1981-07-16 | Treatment method of plating sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5811749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11119583B2 (en) | 2017-10-23 | 2021-09-14 | Fujifilm Business Innovation Corp. | Information processing device with flexible display, information processing method, and non-transitory computer readable medium |
| US11510262B2 (en) | 2017-07-28 | 2022-11-22 | Fujifilm Business Innovation Corp. | Information processing device and non-transitory computer readable medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101226755B1 (en) * | 2010-10-05 | 2013-01-28 | 한국지질자원연구원 | A Method for Recovering Metal Tin from Tin Sludge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234570A (en) * | 1975-09-11 | 1977-03-16 | Gifuken | Treatment method for sludge containing chrome |
-
1981
- 1981-07-16 JP JP56109944A patent/JPS5811749A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234570A (en) * | 1975-09-11 | 1977-03-16 | Gifuken | Treatment method for sludge containing chrome |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11510262B2 (en) | 2017-07-28 | 2022-11-22 | Fujifilm Business Innovation Corp. | Information processing device and non-transitory computer readable medium |
| US11119583B2 (en) | 2017-10-23 | 2021-09-14 | Fujifilm Business Innovation Corp. | Information processing device with flexible display, information processing method, and non-transitory computer readable medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5811749A (en) | 1983-01-22 |
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