201043706 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係有關於一種蝕刻廢液之處理方法及其處理裝 置，尤指一種含碘化鉀之金蝕刻廢液之處理方法及其處 理裝置。 【先前技術】 [0002] 目前資源化產業可從印刷電路板的廢蝕刻液中提煉出201043706 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a method for treating an etching waste liquid and a processing device thereof, and more particularly to a method for treating a gold etching waste liquid containing potassium iodide and a processing device thereof . [Prior Art] [0002] At present, the resource industry can extract from the waste etching liquid of printed circuit boards.
回收高純度之貴金屬。印刷電路板業產業每年產值高達 數千億元，其廢蝕刻液之量是非常可觀的，尤其在現今 貴金屬價格高漲的時期，從廢蝕刻液中所回收之貴金屬 顯得格外珍貴。從廢蝕刻液中可回收高純度的貴金屬， 可製成高純度之貴金屬產品！可達到廢棄物之循環再利 用性及永續發展的目的。 資源化產業是各產業處理廢棄物及原物料供應的主要 來源’目前有近60%產業仰賴資源化產業供應部分原物料 ’如此降低產業採購海外原料的成本，讓產品更具國際 價格競爭力。 . / ·.: 資源化產業專門處理「產業產生的廢棄物J與整體產 業的發展息息相關，隨著回收技術的進步，回收物再利 用率也相對提高，回收物的種類也相對增加。 半導體及光電產業製程中常利用蝕刻法來進行独刻製 程，含有碘化物之溶液為常見之金蝕刻液’當金蚀刻液 中之碘化鉀濃度或蝕刻能力不符合製程需求時’此蚀刻 液會因無法再度活化使用而被廢棄，即為廢棄之蝕刻液 。因此廢棄之蝕刻液中含有濃度不一的金離子，金屬金 098119656 為經濟價值高之貴金屬，具有高度回收價值。 表單編號A0101 0982033384-0 第3頁/共12頁 201043706 當含有蛾之金#刻廢液進行金回收後，剩餘的溶液即 為廢水，但廢水中含有大量的破成分，對水中生物的危 害性很大，因此需要除去廢水中之碘成分，待廢水符合 排放標準後予以排放。 有鑑於上述問題，本發明提出含碘之金蝕刻廢液之處 理方法及其處理裝置，可回收含碘之金蝕刻廢液之碘離 子及金離子，有效降低含碘之金蝕刻廢液之毒性，便於 後續廢水處理，防止含毒性之廢水污染環境。 【發明内容】 [0003] 098119656 本發明之目的之一，係在於提供一種含碘之金蝕刻廢 液之處理方法及其處理裝置，處理含碘之金蝕刻廢液， 回收含碘之金蝕刻廢液之碘離子及金離子，降低含碘之 金蝕刻廢液之毒性，便於後續廢水處理並防止含毒性之 廢水污染環境。 本發明之目的之一，係在於提出一種含碘之金蝕刻廢 液之處理方法及其處理裝置，可回收高純度及高價值之 固態金。 為了達到上述之目的，本發明提供一種含碘之金蝕刻 廢液之處理裝置及其處理方法，該處理裝置係包含一反 應器、一加熱器、一冷卻分離器及一結晶槽，該加熱器 、該冷卻分離器及該結晶槽連接該反應器。該處理方法 係先加入一氧化劑至容置於該反應器之一含碘之金蝕刻 廢液，於該反應器產生一反應液，接著利用該加熱器提 供熱源加熱該反應器，產生一氣體及一沉澱物，該氣體 含有碘分子及廢氣，該沉澱物為固態金。然後利用冷卻 分離器收集該氣體，並冷卻分離該氣體產生一固態碘， 表單編號A0101 第4頁/共12頁 0982033384-0 201043706 廢氣殘留於冷卻分離器中。最後加入一中和劑至容置於 該反應器之該反應⑨，並將已中和之該反應&排出至該 結晶槽，以收集沉澱於該反應器底部之該沉澱物。 【實施方式】 [0004] Ο ❹ 兹為使t審查委S對本發明之結構特徵及所達成之 功效有更進-步之_與職’謹佐叫佳之實施例及 配合詳細之說明，說明如後： 請參閲第-圖，係本發明之一較佳實施例之裝置示意 圖。如圖所示’本實施例提供__種含蛾之金㈣廢液之 處理裝置1，本實施例所提供之處理裝置丨係用以處理一 含碘之金蝕刻廢液，以回收碘之金蝕刻廢液中所含之碘 離子及金離子。本實施例所提供之該處理裝置〗包含一反 應器10、一加熱器12、一冷卻分離器14、一結晶槽16、 -酸儲槽11及-洗祕15。_12、‘卻分離器14、結 晶槽16及酸_U連減應㈣，洗祕15連接冷卻分 離器14 ** 明—併參閱第二圖，係本發明之一較佳實施例之流程 示思圖&圖所示，本實施例提供一種含蜗之金姓刻廢 液之處理方法’本實施例所提供之處理方法係先執行步 驟S10，加入容置於酸儲槽u之一氧化劑至容置於反應器 10之含碘之金蝕刻廢液進行反應，得到一反應液，其中 氧化劑與蛾之金钱刻廢液之比例介於0. 5 : 1與3 : 1之間 氧化劑係選自硫酸、硝酸、亞硫酸鈉及亞硫酸鉀中擇 其依者。接著執行步驟512，利用加熱器12產生熱源加熱 098119656 反應器10之反應液，控制反應器10之溫度介於攝氏80度 與攝氏280度之間，產生一氣體及一沉澱物，其中氣體含 第5頁/共12頁 表單編號A0101 0982033384-0 201043706 有碘分子及廢氣，沉澱物為固態金。 然後執仃步驟S14，利用冷卻分離器14收集反應器1〇 内之氣體，然後冷卻分離氣體產生—固態蛾，並剩下廢 氣殘留於冷卻分離器14卜接著執行步驟si6，導入一中 和劑至反應器1〇，以中和反應液，並排出已中和之反應 液至、、.°曰曰槽16，以便收集沉於反應器10底部之沉澱物。 最後執行步驟S18 ’控制結晶槽16之溫度介於攝氏3度與 攝氏8度之間’已中和之反應液進行結晶產生一舒鹽。以 上述實施例之處理裝置及處理方法所得到之固態蛾純度 超過98/°，為固態金之沉澱物純度超過95%，鉀鹽純度超 過 95%〇 上述執行步驟S14後，更可執行步驟S15，冷卻分離器 14排出廢氣至洗祕15，利用洗料14處理廢氣，以減 少廢氣污染。 [0005][實施例] 復參閱第一圖及第二圖，本實施例處理碘之金蝕刻廢 液含係先執行步驟S10，加入華i於酸儲槽11之氧化劑至 谷置於反應器10之含填之金蝕刻廢液進行反應，得到一 反應液，其中氧化劑與含碘之金蝕刻廢液之比例介於0.5 :1與3 : 1之間。氧化劑可使用20%〜4〇%的硫酸，本實施 例使用150L的30%硫酸。本實施例之含蛾之金蝕刻廢液所 含之蛾離子濃度為36〇ppm，其所含之金離子濃度為 238ppm 。 接著執行步驟S12，利用加熱器12產生熱源加熱反應 器之反應液，控制反應器10之溫度介於攝氏1〇〇度與攝 098119656 表單編號A0101 第6頁/共12頁 0982033384-0 氏150度之間，產生一氣體及一沉澱物，其中氣體含有蛾 分子及廢氣’沉澱物為固態金。然後執行步驟S14 ’利用 冷卻分離器14收集反應器内之氣體’然後冷卻分離氣體 產生一固態碘，並剩下廢氣殘留於冷卻分離器14中，其 中固態蛾的重量為107. 3公克。接著執行步驟S15，冷卻 分離器14排出廢氣至洗滌塔15 ’利用洗滌塔15處理廢氣 ，以減少廢氣污染。 接著執行步驟S16 ’導入一中和劑至反應器10，以中 和反應液，旅排出已中和之反應液至結晶槽16，以便收 集沉於反應器10底部之沉澱物，其中本實施例之中和劑 使用15%〜30%的氫氧化鉀"最後執行步驟S18，控制結晶 槽16之溫度介於攝氏3度與攝氏8度之間，已中和之反應 液進行結晶彥生一鉀鹽。以上述實施例之處理裝置及處 理方法所得到之固態碘純度超過98%，為固態金之沉澱物 純度超過95% ’鉀鹽純度超過95%。 由上述可知’本發明提供一種含碘之金蝕刻廢液之處 理方法及其處理裝置，可回收含碘之金蝕刻廢液中之碘 離子及金離子’降低含碘之金蝕刻廢液之毒性，便於後 績廢水處理’防止污染環境，具有環保性。利用本發明 提供之處理方法及其處理裝置可回收高純度之固態金’ 並將固態金製成高純度之貴金屬產品，具有再利用性。 綜上所述，本發明係實為一具有新額性、進步性及可 供產業利用者’應符合我國專利法所規定之專利申請要 件無疑，爰依法提出發明專利申請，祈鈎局早曰賜准 利，至感為禱。 惟以上所述者’僅為本發明之一較佳實施例而已’並 表單編號Α0101 第7頁/共12頁 0982033384-0 201043706 非用來限定本發明實施之範圍，舉凡依本發明申請專利 範圍所述之形狀、構造、特徵及精神所為之均等變化與 修飾，均應包括於本發明之申請專利範圍内。 【圖式簡單說明】 [0006] 第一圖係本發明之一較佳實施例之裝置示意圖；以及 第二圖係本發明之一較佳實施例之流程示意圖。 【主要元件符號說明】 [0007] 1 處理裝置 10反應器 11酸儲槽 12加熱器 14冷卻分離器 15洗滌塔 16結晶槽 0982033384-0 098119656 表單編號A0101 第8頁/共12頁Recover high purity precious metals. The output value of the printed circuit board industry is hundreds of billions of yuan per year, and the amount of waste etching liquid is very considerable. Especially in the period when the price of precious metals is high, the precious metals recovered from the waste etching liquid are particularly precious. High-purity precious metals can be recovered from waste etching fluids to produce high-purity precious metal products! It can achieve the purpose of recycling and sustainable development of waste. Resource-based industries are the main source of waste and raw material supply in various industries. Currently, nearly 60% of the industries rely on the supply of raw materials in the resource-based industries to reduce the cost of purchasing raw materials overseas, and make the products more competitive in international prices. / /.: The resource industry specializes in "the waste generated by the industry is closely related to the development of the overall industry. With the advancement of recycling technology, the recycling rate of recycled materials is relatively increased, and the types of recycled materials are relatively increased. In the optoelectronic industry process, etching is often used to carry out the in-line process. The solution containing iodide is a common gold etching solution. 'When the potassium iodide concentration or etching ability in the gold etching solution does not meet the process requirements, the etching solution will not be reactivated. It is discarded and discarded as an etchant. Therefore, the discarded etching solution contains gold ions of different concentrations. Metal gold 098119656 is a noble metal with high economic value and has a high recovery value. Form No. A0101 0982033384-0 Page 3 / Total 12 pages 201043706 When the gold waste is recovered from the moth waste liquid, the remaining solution is waste water, but the waste water contains a large amount of broken components, which is very harmful to aquatic organisms, so it is necessary to remove the waste water. The iodine component is discharged after the wastewater meets the discharge standard. In view of the above problems, the present invention proposes gold containing iodine. The method for treating the waste liquid and the processing device thereof can recover the iodide ion and the gold ion of the iodine-containing gold etching waste liquid, effectively reduce the toxicity of the iodine-containing gold etching waste liquid, facilitate the subsequent wastewater treatment, and prevent the pollution of the toxic waste water. [0003] [0003] One of the objects of the present invention is to provide a method for treating a gold etching waste liquid containing iodine and a processing apparatus thereof, and treating a gold etching waste liquid containing iodine to recover gold containing iodine. Etching the iodide ions and gold ions of the waste liquid, reducing the toxicity of the iodine-containing gold etching waste liquid, facilitating the subsequent wastewater treatment and preventing the toxic waste water from polluting the environment. One of the objects of the present invention is to propose a gold etching containing iodine. The waste liquid treatment method and the treatment device thereof can recover high-purity and high-value solid gold. In order to achieve the above object, the present invention provides a treatment device for iodine-containing gold etching waste liquid and a treatment method thereof, and the treatment method is A reactor, a heater, a cooling separator and a crystallization tank are included, and the heater, the cooling separator and the crystallization tank are connected to the reactor. The treatment method first adds an oxidant to a gold etching effluent containing iodine in the reactor, and generates a reaction liquid in the reactor, and then uses the heater to provide a heat source to heat the reactor to generate a gas and a precipitate containing iodine molecules and exhaust gas, the precipitate being solid gold, which is then collected by a cooling separator and cooled to separate a gas to produce a solid iodine, Form No. A0101 Page 4 of 12 0982033384- 0 201043706 The exhaust gas remains in the cooling separator. Finally, a neutralizing agent is added to the reaction 9 placed in the reactor, and the neutralized reaction & is discharged to the crystallization tank to collect the precipitate in the reaction. The deposit at the bottom of the device. [Embodiment] [0004] 为 兹 为 为 为 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查 审查With reference to the detailed description, the following is a description of the device according to a preferred embodiment of the present invention. As shown in the figure, the present embodiment provides a processing device 1 for a moth-containing gold (four) waste liquid. The processing device provided in the present embodiment is used to process an iodine-containing gold etching waste liquid to recover iodine. Iodine ions and gold ions contained in the gold etching waste liquid. The processing apparatus provided in this embodiment comprises a reactor 10, a heater 12, a cooling separator 14, a crystallization tank 16, an acid storage tank 11, and a washing gel 15. _12, 'But the separator 14, the crystallization tank 16 and the acid _U continuous reduction (4), the washing 15 is connected to the cooling separator 14 ** Ming - and referring to the second figure, is a flow chart of a preferred embodiment of the present invention As shown in the figure & figure, this embodiment provides a method for treating a waste liquid containing worms. The treatment method provided in this embodiment first performs step S10, and adds an oxidant contained in the acid storage tank u. The oxidizing agent is selected from the iodine-containing gold etching waste liquid in the reactor 10 to obtain a reaction liquid, wherein the ratio of the oxidizing agent to the moth waste liquid is between 0.5: 1 and 3: 1 Choose from sulfuric acid, nitric acid, sodium sulfite and potassium sulfite. Next, in step 512, the heater 12 is used to generate a heat source to heat the reaction liquid of the reactor 10, and the temperature of the reactor 10 is controlled between 80 degrees Celsius and 280 degrees Celsius to generate a gas and a precipitate. 5 pages / total 12 pages Form No. A0101 0982033384-0 201043706 There are iodine molecules and exhaust gas, and the precipitate is solid gold. Then, in step S14, the gas in the reactor 1 is collected by the cooling separator 14, and then the separated gas is cooled to produce a solid moth, and the remaining exhaust gas remains in the cooling separator 14 and then the step si6 is performed to introduce a neutralizer. The reactor was neutralized to neutralize the reaction liquid, and the neutralized reaction liquid was discharged to the vessel 16 to collect the precipitate deposited on the bottom of the reactor 10. Finally, step S18' is performed to control the temperature of the crystallization tank 16 between 3 degrees Celsius and 8 degrees Celsius. The neutralized reaction liquid is crystallized to produce a salt. The purity of the solid moth obtained by the treatment device and the treatment method of the above embodiment exceeds 98/°, and the purity of the precipitate of the solid gold exceeds 95%, and the purity of the potassium salt exceeds 95%. After the step S14 is performed, the step S15 can be further performed. The cooling separator 14 discharges the exhaust gas to the washing 15 and treats the exhaust gas with the washing material 14 to reduce the exhaust gas pollution. [Examples] Referring to the first figure and the second figure, in this embodiment, the gold etch waste liquid containing iodine is first subjected to step S10, and the oxidant added to the acid storage tank 11 is placed in the reactor. The gold-containing etching waste liquid of 10 is reacted to obtain a reaction liquid, wherein the ratio of the oxidizing agent to the iodine-containing gold etching waste liquid is between 0.5:1 and 3:1. As the oxidizing agent, 20% to 4% by weight of sulfuric acid can be used, and in the present embodiment, 150 L of 30% sulfuric acid is used. The moth-containing gold etching waste liquid of the present embodiment has a moth ion concentration of 36 〇 ppm and a gold ion concentration of 238 ppm. Then, in step S12, the reaction liquid of the heat source heating reactor is generated by the heater 12, and the temperature of the reactor 10 is controlled to be between 1 degree Celsius and 098119656. Form No. A0101 Page 6 / Total 12 pages 0982033384-0 150 degrees Between, a gas and a precipitate are produced, wherein the gas contains moth molecules and the exhaust gas 'precipitate is solid gold. Then, the weight of the solid moth is 107.3 g. The weight of the solid moth is 107.3 g. Next, in step S15, the cooling separator 14 discharges the exhaust gas to the washing tower 15' to treat the exhaust gas by the washing tower 15 to reduce the exhaust gas pollution. Then, step S16' is introduced to introduce a neutralizing agent to the reactor 10 to neutralize the reaction liquid, and the neutralized reaction liquid is discharged to the crystallization tank 16 to collect the precipitate which sinks at the bottom of the reactor 10, wherein the embodiment The neutralizer uses 15% to 30% of potassium hydroxide < Finally, step S18 is performed to control the temperature of the crystallization tank 16 between 3 degrees Celsius and 8 degrees Celsius, and the neutralized reaction liquid is crystallized. Potassium salt. The purity of the solid iodine obtained by the treatment apparatus and the treatment method of the above examples was over 98%, and the purity of the solid gold precipitate was over 95%. The purity of the potassium salt was over 95%. It can be seen from the above that the present invention provides a method for treating iodine-containing gold etching waste liquid and a processing device thereof, which can recover the iodide ion and gold ion in the iodine-containing gold etching waste liquid and reduce the toxicity of the iodine-containing gold etching waste liquid. It is convenient for post-production wastewater treatment to prevent environmental pollution and environmental protection. The treatment method provided by the present invention and the treatment device thereof can recover high-purity solid gold' and solid gold into a high-purity precious metal product, which has recyclability. In summary, the present invention is a new type of, progressive and available for industrial use 'should meet the requirements of patent applications stipulated in China's patent law, no doubt, 提出 legally filed an invention patent application, the hook office early Give the right to benefit, to the feeling of prayer. However, the above description is only a preferred embodiment of the present invention and the form number Α0101 7th page/12 pages 0982033384-0 201043706 is not intended to limit the scope of the practice of the present invention. Equivalent changes and modifications of the shapes, configurations, features and spirits are intended to be included in the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0006] The first drawing is a schematic view of a device according to a preferred embodiment of the present invention; and the second drawing is a schematic flow chart of a preferred embodiment of the present invention. [Main component symbol description] [0007] 1 Processing device 10 Reactor 11 Acid storage tank 12 Heater 14 Cooling separator 15 Washing tower 16 Crystallizing tank 0982033384-0 098119656 Form No. A0101 Page 8 of 12