WO2015103888A1 - Method for recycling and processing waste containing silver component - Google Patents

Method for recycling and processing waste containing silver component Download PDF

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Publication number
WO2015103888A1
WO2015103888A1 PCT/CN2014/085884 CN2014085884W WO2015103888A1 WO 2015103888 A1 WO2015103888 A1 WO 2015103888A1 CN 2014085884 W CN2014085884 W CN 2014085884W WO 2015103888 A1 WO2015103888 A1 WO 2015103888A1
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reaction
silver
acid
acid solution
waste containing
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PCT/CN2014/085884
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French (fr)
Chinese (zh)
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吕芳贤
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陈怡雯
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • 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

Definitions

  • the present invention relates to a field related to waste recycling treatment, and more particularly to a waste recycling treatment method containing a silver component.
  • the recovery of metallic silver from silver-containing waste has a very high economic value; currently, the method of recovering silver from silver-containing waste mainly includes both fire and wet methods.
  • the dissolution method includes a concentrated sulfuric acid dissolution method, a nitric acid dissolution method, a strong alkali dissolution method, a thiourea dissolution method, and the like.
  • the invention provides a waste recycling treatment method for a silver-containing component, which can produce a silver-containing semi-finished product from silver-containing waste, and further processed into a silver finished product or product, which does not need to exceed a high temperature of 100 ° C. And the step of the fine tube, not only can recycle silver, but also can achieve the effect of easy operation and cost reduction.
  • the invention provides a waste recycling treatment method for a silver-containing component, the steps comprising:
  • Acid preparation and reaction step preparing an acid solution, and performing at least one waste containing silver component with the acid liquid to perform a first reaction step to produce an acid solution mixture containing the recovered silver component;
  • the stabilization step preparing an alcohol liquid, and performing a second reaction step of the recovered silver component-containing acid liquid mixture with the alcohol liquid to produce a stabilized silver component-containing acid liquid mixture;
  • 18.2 ⁇ -cm of deionized water is subjected to a third reaction step to produce a recovered silver semi-finished product.
  • the acid solution in the acid preparation and reaction step is a nitric acid/hydrochloric acid mixed acid solution, a nitric acid/acetic acid mixed acid solution, a hydrochloric acid/acetic acid mixed acid solution, sulfuric acid or acetic acid, and the nitric acid/hydrochloric acid mixed acid solution
  • the mixing ratio of the nitric acid/acetic acid mixed acid solution or the hydrochloric acid/acetic acid mixed acid solution is 1:1-10 or 1-10:1.
  • the first reaction step in the acid preparation and reaction step comprises a first reaction parameter and a second
  • the reaction parameters of the first stage include a reaction temperature of 10-40 ° C and a reaction time of 1 hour.
  • the second reaction parameter includes a reaction temperature of 65-80 ° C and a reaction time of 1 hour.
  • the at least one silver-containing waste is a computer part, a silver product, a silver semi-finished product, a silver-containing chemical raw material or a silver-containing mineral.
  • the second reaction step of the stabilization step comprises a first reaction parameter and a second reaction parameter, the first reaction parameter comprising a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours.
  • the second reaction parameter includes a reaction temperature of 60-100 ° C and a reaction time of 0.5-3 hours.
  • the alcohol solution of the stabilization step is a mixture of isopropanol, n-butanol, secondary pentanol, glycerol, tetramethylene alcohol, pentaerythritol, ethylene glycol or ethanol/acetone, and the ethanol/acetone mixture
  • the ratio of the two is 1: 0 or 1: 1 or 1: 2 or 1: 4.
  • the third reaction step in the precipitation reduction step comprises a first reaction parameter and a second reaction parameter, the first reaction parameter comprising a reaction temperature of 10-40 ° C and a reaction of 0.5-3 hours.
  • the second reaction parameter includes a reaction temperature of 80-100 ° C and a reaction time of 0.5-3 hours.
  • the basic compound in the precipitation reduction step is potassium carbonate, sodium carbonate, potassium hydroxide, sodium hydroxide or ammonia.
  • the precipitation reduction step also applies hydrazine, 9-bromoindole, 2,7-diindole, 2-amino-7-indole, thiophene, 2-bromothiophene, 3,4-dibromothiophene, 2- Tributylstannylthiophene, 2,5-dibromothiophene, 4-amino-2,1,3-1,3-thiathiadiazole, 3-bromothiophene, 4,7-dibromo-2,1,3 - benzothiadiazole, silver bromide, silver iodide or 2-iodothiophene.
  • These materials are used to chelate metallic silver, respectively, so that the metallic silver component in the solution can be uniformly dispersed and rapidly reduced with the reducing agent.
  • the silver component-containing waste recycling treatment method of the invention can produce silver-containing semi-finished products from silver-containing waste, and further processed into silver finished products or products, and the whole method does not involve high temperature during the whole process, The high-concentration and high-corrosion acid solution is not required, and the steps are also very refined. Therefore, the present invention provides a safe and environmentally-friendly method for recovering silver-containing waste. DRAWINGS
  • a flow chart for making a silver product is shown.
  • Steps S1 to S3 Waste recycling steps of the silver component of the present invention
  • Steps S4 ⁇ S5 Steps of processing the re-formed silver product of the present invention
  • Fig. 1 is a flow chart showing a method for recovering waste containing a silver component according to the present invention.
  • the steps of the silver component-containing waste recovery processing method of the present invention may include an acid liquid preparation and reaction step, a stabilization step, and a precipitation reduction step.
  • the acid preparation and reaction step S1 is to first prepare an acid solution, and carry out a first reaction step of the at least one silver-containing waste with the acid solution to produce a recovered silver-containing acid mixture.
  • the at least one silver-containing waste may be a computer part, a silver product, a silver semi-finished product, a silver-containing chemical raw material or a silver-containing mineral, but is not limited thereto.
  • the acid solution may be a nitric acid/hydrochloric acid mixed acid solution, a nitric acid/acetic acid mixed acid solution, a hydrochloric acid/acetic acid mixed acid solution, sulfuric acid or acetic acid, and the above-mentioned nitric acid/hydrochloric acid mixed acid solution
  • the mixing ratio of the nitric acid/acetic acid mixed acid solution or the hydrochloric acid/acetic acid mixed acid solution may range from 1:1-10 to 1-10:1; and, the first reaction step S1 may include a first reaction parameter and a first reaction step.
  • the first reaction parameter may include a reaction temperature of 10-40 ° C and a reaction time of 1 hour
  • the second reaction parameter may include a reaction temperature of 65-80 ° C and a reaction time of 1 hour.
  • the stabilization step S2 is to first prepare an alcohol liquid, and carry out a second reaction step of the above-mentioned recovered silver-containing acid mixture and the alcohol liquid to produce an acid mixture of the stabilized silver-containing component.
  • the second reaction step S2 also includes a first reaction parameter and a second reaction parameter.
  • the first reaction parameter includes a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours
  • the second reaction The parameters include a reaction temperature of 60-100 ° C and a reaction time of 0.5-3 hours; moreover, the alcohol liquid may be isopropanol, n-butanol, sec-pentanol, glycerol, tetramethylene alcohol, pentaerythritol, A mixture of ethylene glycol or ethanol/acetone, and the ratio of the two in the ethanol/acetone mixture may be 1:0 or 1:1 or 1:2 or 1:4.
  • the precipitation reduction step S3 is a third reaction step of reacting the above-mentioned acidized silver-containing acid solution with a basic compound and a deionized water having a resistivity of 18.2 ⁇ -cm to produce a recovered silver semi-finished product. .
  • the third reaction step S3 comprises a first reaction parameter and a second reaction parameter
  • the first reaction parameter comprises a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours
  • the second reaction parameter The reaction temperature of 80 to 100 ° C and the reaction time of 0.5 to 3 hours are included; moreover, the basic compound may be potassium carbonate, sodium carbonate, potassium hydroxide, sodium hydroxide or ammonia.
  • the recovered silver semi-finished product produced in the above-described precipitation reduction step S3 can be further processed to form a silver product or a silver product, including a processing step S4 and a re-making step S5.
  • Processing step S4 adding the recovered silver semi-finished product to acetone, toluene and tetrahydrofuran, and completing the silver semi-finished product through a ball mill, a mixer, a carbon boat, a carbon powder, a melting furnace, an ultrasonic washing tank, a sieve, and a high temperature annealing furnace. machining.
  • Remanufacturing step S5 refining the finished silver semi-finished product into a silver finished product or product, such as nano (micro) rice silver powder, silver wire, silver foil, silver rod, flake silver material, dendritic silver material, silver ball, Silver, silver-copper alloy, high-purity silver chemical materials, etc., but not limited to this.
  • a silver finished product or product such as nano (micro) rice silver powder, silver wire, silver foil, silver rod, flake silver material, dendritic silver material, silver ball, Silver, silver-copper alloy, high-purity silver chemical materials, etc., but not limited to this.
  • silver-containing semi-finished products can be produced from silver-containing waste, and further processed into silver finished products or products, not only do not need to exceed the high temperature of 100 ° C, but also step fine cylinder, thereby not only recovering silver It can also achieve the effect of easy operation and cost reduction.

Abstract

A method for recycling and processing waste containing a silver component comprises: a step of preparing an acid liquid and performing a first reaction between waste containing a silver component and the acid liquid, so as to produce an acid liquid mixture containing the silver component; a step of preparing an alcohol liquid, and performing a second reaction between the acid liquid mixture containing the silver component and the alcohol liquid, so as to produce a stabilized acid liquid mixture; a step of preforming a third reaction among the stabilized acid liquid mixture, an alkaline compound and ionized water with the resistivity of 18.2MΩ•cm, so as to produce a silver semi-finished product; and performing further processing to obtain a silver finished product or a product made of silver.

Description

含银成分的废弃物回收处理方法 技术领域  Waste treatment method for silver-containing components
本发明关于一种废弃物回收处理的相关领域， 特别是指一种含银成分的废弃物回收处理 方法。  The present invention relates to a field related to waste recycling treatment, and more particularly to a waste recycling treatment method containing a silver component.
背景技术 Background technique
从含银的废弃物中回收金属银， 具有非常高的经济价值； 而目前， 从含银的废弃物中回 收银的方法主要包括火法和湿法两种。  The recovery of metallic silver from silver-containing waste has a very high economic value; currently, the method of recovering silver from silver-containing waste mainly includes both fire and wet methods.
由于火法要消耗大量的能量， 且需要超过 100°C的高温， 同时产生污染， 回收率也不高； 而湿法使用较多， 一般事先采用适当的方法将银溶出， 将固态银转移到溶液中后再提取， 其 溶解方法包括浓硫酸溶解法、 硝酸溶解法、 强碱溶解法、 硫脲溶解法等。  Because the fire method consumes a lot of energy, and needs to exceed the high temperature of 100 ° C, and at the same time produces pollution, the recovery rate is not high; and the wet method is used more, generally the appropriate method is used to dissolve the silver, and the solid silver is transferred to the solution. After the extraction, the dissolution method includes a concentrated sulfuric acid dissolution method, a nitric acid dissolution method, a strong alkali dissolution method, a thiourea dissolution method, and the like.
由于目前所使用的回收银的方法需使用到超过 100°C的高温或者是需使用到高浓度的强 碱或强酸溶液， 不但危险而且容易造成污染。 发明内容  Since the method of recovering silver currently used requires a high temperature exceeding 100 ° C or a high concentration of a strong alkali or a strong acid solution is used, it is dangerous and susceptible to contamination. Summary of the invention
本发明提供一种含银成分的废弃物回收处理方法， 可从含银的废弃物中产出含银的半成 品， 以进一步加工再制成银成品或制品， 不但无须超过 100°C的高温， 而且步骤精筒， 借此 不但可以回收银， 更可以达到操作筒易及降低成本的功效。  The invention provides a waste recycling treatment method for a silver-containing component, which can produce a silver-containing semi-finished product from silver-containing waste, and further processed into a silver finished product or product, which does not need to exceed a high temperature of 100 ° C. And the step of the fine tube, not only can recycle silver, but also can achieve the effect of easy operation and cost reduction.
本发明提供一种含银成分的废弃物回收处理方法置， 其步骤包括：  The invention provides a waste recycling treatment method for a silver-containing component, the steps comprising:
酸液制备及反应步骤： 制备酸液， 并将至少一种含银成分的废弃物与该酸液进行第一反 应步骤， 以产出己回收处理的含银成分的酸液混合物；  Acid preparation and reaction step: preparing an acid solution, and performing at least one waste containing silver component with the acid liquid to perform a first reaction step to produce an acid solution mixture containing the recovered silver component;
安定化步骤： 制备醇液， 并将该已回收处理的含银成分的酸液混合物与该醇液进行第二 反应步骤， 以产出已安定化的含银成分的酸液混合物；  The stabilization step: preparing an alcohol liquid, and performing a second reaction step of the recovered silver component-containing acid liquid mixture with the alcohol liquid to produce a stabilized silver component-containing acid liquid mixture;
以及析出还原步骤： 将该已安定化的含银成分的酸液混合物与碱性化合物及电阻率为 And a precipitation reduction step: the acid mixture of the stabilized silver-containing component and the basic compound and resistivity
18.2 ΜΩ-cm的去离子水进行第三反应步骤， 以产出回收的银半成品。 18.2 ΜΩ-cm of deionized water is subjected to a third reaction step to produce a recovered silver semi-finished product.
其中， 该酸液制备及反应步骤中的该酸液为硝酸 /盐酸混合酸液、硝酸 /醋酸混合酸液、 盐 酸 /醋酸混合酸液、 硫酸或者是醋酸， 而该硝酸 /盐酸混合酸液、 该硝酸 /醋酸混合酸液或该盐 酸 /醋酸混合酸液的混合比例为 1 : 1-10或者是 1-10: 1。  Wherein, the acid solution in the acid preparation and reaction step is a nitric acid/hydrochloric acid mixed acid solution, a nitric acid/acetic acid mixed acid solution, a hydrochloric acid/acetic acid mixed acid solution, sulfuric acid or acetic acid, and the nitric acid/hydrochloric acid mixed acid solution, The mixing ratio of the nitric acid/acetic acid mixed acid solution or the hydrochloric acid/acetic acid mixed acid solution is 1:1-10 or 1-10:1.
其中， 该酸液制备及反应步骤中的该第一反应步骤包括一个第一段反应参数及一个第二 段反应参数，该第一段反应参数包括 10-40°C的反应温度及 1小时的反应时间，该第二段反应 参数包括 65-80°C的反应温度及 1小时的反应时间。 Wherein the first reaction step in the acid preparation and reaction step comprises a first reaction parameter and a second The reaction parameters of the first stage include a reaction temperature of 10-40 ° C and a reaction time of 1 hour. The second reaction parameter includes a reaction temperature of 65-80 ° C and a reaction time of 1 hour.
其中， 该至少一种含银成分的废弃物为电脑零件、 银制品、 银制半成品、 含银化学原料 或者是含银矿物。  Wherein the at least one silver-containing waste is a computer part, a silver product, a silver semi-finished product, a silver-containing chemical raw material or a silver-containing mineral.
其中，该安定化步骤的该第二反应步骤包括一个第一段反应参数及一个第二段反应参数， 该第一段反应参数包括 10-40°C的反应温度及 0.5-3小时的反应时间， 该第二段反应参数包括 60- 100 °C的反应温度及 0.5-3小时的反应时间。  Wherein the second reaction step of the stabilization step comprises a first reaction parameter and a second reaction parameter, the first reaction parameter comprising a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours. The second reaction parameter includes a reaction temperature of 60-100 ° C and a reaction time of 0.5-3 hours.
其中， 该安定化步骤的该醇液为异丙醇、 正丁醇、 仲戊醇、 丙三醇、 丁四醇、 戊五醇、 乙二醇或乙醇 /丙酮的混合物， 而乙醇 /丙酮混合物中二者的比例为 1 : 0或 1 : 1或 1 : 2或者是 1 : 4。  Wherein the alcohol solution of the stabilization step is a mixture of isopropanol, n-butanol, secondary pentanol, glycerol, tetramethylene alcohol, pentaerythritol, ethylene glycol or ethanol/acetone, and the ethanol/acetone mixture The ratio of the two is 1: 0 or 1: 1 or 1: 2 or 1: 4.
其中， 该析出还原步骤中的该第三反应步骤包括一个第一段反应参数及一个第二段反应 参数， 该第一段反应参数包括 10-40°C的反应温度及 0.5-3小时的反应时间， 该第二段反应参 数包括 80- 100 °C的反应温度及 0.5-3小时的反应时间。  Wherein the third reaction step in the precipitation reduction step comprises a first reaction parameter and a second reaction parameter, the first reaction parameter comprising a reaction temperature of 10-40 ° C and a reaction of 0.5-3 hours. Time, the second reaction parameter includes a reaction temperature of 80-100 ° C and a reaction time of 0.5-3 hours.
其中， 该析出还原步骤中的该碱性化合物为碳酸钾、 碳酸钠、 氢氧化钾、 氢氧化钠或者 是氨水。  The basic compound in the precipitation reduction step is potassium carbonate, sodium carbonate, potassium hydroxide, sodium hydroxide or ammonia.
其中， 该析出还原步骤中还应用芴、 9-溴芴、 2,7-二渙芴、 2-氨基 -7-渙芴、 噻吩、 2-溴噻 吩、 3,4-二溴噻吩、 2-三丁基曱锡烷基噻吩、 2,5-二溴噻吩、 4-氨基 -2, 1,3-苯并噻二唑、 3-溴噻 吩、 4,7-二溴 -2,1,3-苯并噻二唑、 溴化银、 碘化银或 2-碘噻吩。 这些物质分别为螯合金属银所 使用， 以使溶液中金属银成分能够均匀分散并快速与还原剂发生还原反应。  Wherein, the precipitation reduction step also applies hydrazine, 9-bromoindole, 2,7-diindole, 2-amino-7-indole, thiophene, 2-bromothiophene, 3,4-dibromothiophene, 2- Tributylstannylthiophene, 2,5-dibromothiophene, 4-amino-2,1,3-1,3-thiathiadiazole, 3-bromothiophene, 4,7-dibromo-2,1,3 - benzothiadiazole, silver bromide, silver iodide or 2-iodothiophene. These materials are used to chelate metallic silver, respectively, so that the metallic silver component in the solution can be uniformly dispersed and rapidly reduced with the reducing agent.
本发明的含银成分的废弃物回收处理方法， 可从含银的废弃物中产出含银的半成品， 以 进一步加工再制成银成品或制品， 其整个方法处理过程中不涉及高温， 也不需用到高浓度高 腐蚀性的酸液， 其步骤亦非常精筒， 因此本发明提供了一种安全， 环保的含银废弃物回收方 法。 附图说明  The silver component-containing waste recycling treatment method of the invention can produce silver-containing semi-finished products from silver-containing waste, and further processed into silver finished products or products, and the whole method does not involve high temperature during the whole process, The high-concentration and high-corrosion acid solution is not required, and the steps are also very refined. Therefore, the present invention provides a safe and environmentally-friendly method for recovering silver-containing waste. DRAWINGS
图  Figure
图
Figure imgf000004_0001
Figure
Figure imgf000004_0001
制成银制品的流程图。 A flow chart for making a silver product.
【符号说明】 步骤 S1~S3: 本发明含银成分的废弃物回收步骤 【Symbol Description】 Steps S1 to S3: Waste recycling steps of the silver component of the present invention
步骤 S4~S5: 本发明加工再制成银制品步骤 具体实施方式  Steps S4~S5: Steps of processing the re-formed silver product of the present invention
图 1表示本发明含银成分的废弃物回收处理方法的流程图。  Fig. 1 is a flow chart showing a method for recovering waste containing a silver component according to the present invention.
请参考图 1 , 本发明的含银成分的废弃物回收处理方法的步骤可包括一酸液制备及反应 步骤、 一安定化步骤以及一析出还原步骤。  Referring to Fig. 1, the steps of the silver component-containing waste recovery processing method of the present invention may include an acid liquid preparation and reaction step, a stabilization step, and a precipitation reduction step.
酸液制备及反应步骤 S1是先制备一酸液，并将至少一含银成分的废弃物与酸液进行一第 一反应步骤， 以产出一己回收处理的含银成分的酸液混合物。 所述的至少一含银成分的废弃 物可为电脑零件、 银制品、 银制半成品、 含银化学原料或者是含银矿物等， 但并不以此为限。  The acid preparation and reaction step S1 is to first prepare an acid solution, and carry out a first reaction step of the at least one silver-containing waste with the acid solution to produce a recovered silver-containing acid mixture. The at least one silver-containing waste may be a computer part, a silver product, a silver semi-finished product, a silver-containing chemical raw material or a silver-containing mineral, but is not limited thereto.
在酸液制备及反应步骤中， 酸液可为硝酸 /盐酸混合酸液、 硝酸 /醋酸混合酸液、 盐酸 /醋 酸混合酸液、硫酸或者是醋酸， 而上述的硝酸 /盐酸混合酸液、 该硝酸 /醋酸混合酸液或该盐酸 /醋酸混合酸液的混合比例范围可为 1 : 1-10或者是 1-10: 1 ; 而且， 第一反应步骤 S1可包括一 第一段反应参数及一第二段反应参数，第一段反应参数可包括 10-40°C的反应温度及 1小时的 反应时间， 第二段反应参数可包括 65-80°C的反应温度及 1小时的反应时间。  In the acid preparation and reaction step, the acid solution may be a nitric acid/hydrochloric acid mixed acid solution, a nitric acid/acetic acid mixed acid solution, a hydrochloric acid/acetic acid mixed acid solution, sulfuric acid or acetic acid, and the above-mentioned nitric acid/hydrochloric acid mixed acid solution, The mixing ratio of the nitric acid/acetic acid mixed acid solution or the hydrochloric acid/acetic acid mixed acid solution may range from 1:1-10 to 1-10:1; and, the first reaction step S1 may include a first reaction parameter and a first reaction step. For the second reaction parameter, the first reaction parameter may include a reaction temperature of 10-40 ° C and a reaction time of 1 hour, and the second reaction parameter may include a reaction temperature of 65-80 ° C and a reaction time of 1 hour.
安定化步骤 S2是先制备一醇液，并将上述已回收处理的含银成分的酸液混合物与醇液进 行一第二反应步骤， 以产出一己安定化的含银成分的酸液混合物。  The stabilization step S2 is to first prepare an alcohol liquid, and carry out a second reaction step of the above-mentioned recovered silver-containing acid mixture and the alcohol liquid to produce an acid mixture of the stabilized silver-containing component.
其中， 第二反应步骤 S2也包括一第一段反应参数及一第二段反应参数， 第一段反应参数 包括 10-40 °C的反应温度及 0.5-3小时的反应时间， 第二段反应参数包括 60-100 °C的反应温度 及 0.5-3小时的反应时间； 而且， 该醇液可为异丙醇、 正丁醇、 仲戊醇、 丙三醇、 丁四醇、 戊 五醇、 乙二醇或乙醇 /丙酮的混合液， 而乙醇 /丙酮的混合液中二者的比例可为 1 : 0或 1 : 1或 1 : 2或者是 1 : 4。  The second reaction step S2 also includes a first reaction parameter and a second reaction parameter. The first reaction parameter includes a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours, and the second reaction The parameters include a reaction temperature of 60-100 ° C and a reaction time of 0.5-3 hours; moreover, the alcohol liquid may be isopropanol, n-butanol, sec-pentanol, glycerol, tetramethylene alcohol, pentaerythritol, A mixture of ethylene glycol or ethanol/acetone, and the ratio of the two in the ethanol/acetone mixture may be 1:0 or 1:1 or 1:2 or 1:4.
析出还原步骤 S3 是将上述己安定化的含银成分的酸液与一碱性化合物及一电阻率为 18.2 ΜΩ-cm的去离子水进行一第三反应步骤， 以产出一回收的银半成品。  The precipitation reduction step S3 is a third reaction step of reacting the above-mentioned acidized silver-containing acid solution with a basic compound and a deionized water having a resistivity of 18.2 Ω-cm to produce a recovered silver semi-finished product. .
其中， 第三反应步骤 S3包括一第一段反应参数及一第二段反应参数， 第一段反应参数包 括 10-40 °C的反应温度及 0.5-3小时的反应时间， 第二段反应参数包括 80- 100 °C的反应温度及 0.5-3小时的反应时间； 而且， 碱性化合物可为碳酸钾、 碳酸钠、 氢氧化钾、 氢氧化钠或者是 氨水。  Wherein, the third reaction step S3 comprises a first reaction parameter and a second reaction parameter, and the first reaction parameter comprises a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours, and the second reaction parameter The reaction temperature of 80 to 100 ° C and the reaction time of 0.5 to 3 hours are included; moreover, the basic compound may be potassium carbonate, sodium carbonate, potassium hydroxide, sodium hydroxide or ammonia.
其中， 该析出还原步骤 S3中还可进一步应用芴、 9-溴芴、 2,7-二渙芴、 2-氨基 -7-溴芴、 噻吩、 2-溴噻吟、 3,4-二溴噻吩、 2-三丁基曱锡烷基噻吩、 2,5-二溴噻吩、 4-氨基 -2, 1,3-苯并噻 二唑、 3-溴噻吟、 4,7-二溴 -2,1,3-苯并噻二唑、 溴化银、 碘化银或 2-碘噻吩等。 这些物质分别 为螯合金属银所使用， 以使溶液中金属银成分能够均匀分散并快速与还原剂发生还原反应。 制成银制品的流程图。 Wherein, in the precipitation reduction step S3, ruthenium, 9-bromoindole, 2,7-diindole, 2-amino-7-bromoindole, Thiophene, 2-bromothiazide, 3,4-dibromothiophene, 2-tributylstanstanylthiophene, 2,5-dibromothiophene, 4-amino-2,1,3-1,3-thiathiadiazole , 3-bromothiazide, 4,7-dibromo-2,1,3-benzothiadiazole, silver bromide, silver iodide or 2-iodothiophene. These materials are used to chelate metallic silver, respectively, so that the metallic silver component in the solution can be uniformly dispersed and rapidly reduced with the reducing agent. A flow chart for making a silver product.
在上述析出还原步骤 S3所产生的回收的银半成品，可在进一步进行加工再制而形成一银 制品或银产品， 包括加工步骤 S4及再制作步骤 S5。  The recovered silver semi-finished product produced in the above-described precipitation reduction step S3 can be further processed to form a silver product or a silver product, including a processing step S4 and a re-making step S5.
加工步骤 S4: 将回收的银半成品加入到丙酮、 曱苯以及四氢呋喃， 并通过球磨机、 搅拌 机、 碳舟、 碳粉、 熔炼炉、 超声波洗槽、 筛网以及高温退火炉等器具， 完成银半成品的加工。  Processing step S4: adding the recovered silver semi-finished product to acetone, toluene and tetrahydrofuran, and completing the silver semi-finished product through a ball mill, a mixer, a carbon boat, a carbon powder, a melting furnace, an ultrasonic washing tank, a sieve, and a high temperature annealing furnace. machining.
再制步骤 S5: 将上述完成加工的银半成品再制成银成品或产品， 例如奈 (微)米银粉、 银 线、 银箔、 银棒、 片状银材、 树状银材、 银球、 银块、 银铜合金、 高纯度银化学材料等， 但 并不以此为限。  Remanufacturing step S5: refining the finished silver semi-finished product into a silver finished product or product, such as nano (micro) rice silver powder, silver wire, silver foil, silver rod, flake silver material, dendritic silver material, silver ball, Silver, silver-copper alloy, high-purity silver chemical materials, etc., but not limited to this.
借助上述方法， 可从含银的废弃物中产出含银的半成品， 以进一步加工再制成银成品或 制品， 不但无须超过 100 °C的高温， 而且步骤精筒， 借此不但可以回收银， 更可以达到操作 筒易及降低成本的功效。  By means of the above method, silver-containing semi-finished products can be produced from silver-containing waste, and further processed into silver finished products or products, not only do not need to exceed the high temperature of 100 ° C, but also step fine cylinder, thereby not only recovering silver It can also achieve the effect of easy operation and cost reduction.
虽然本发明说明书仅以较佳实施例进行解释， 但是这并不构成对本发明的限制。 应说明 的是， 本领域的技术人员根据本发明的思想能够构造出很多其他类似实施例， 这些均在本发 明的保护范围之中。  Although the description of the present invention has been explained by the preferred embodiments, it is not intended to limit the invention. It should be noted that many other similar embodiments can be constructed in accordance with the teachings of the present invention, which are within the scope of the present invention.

Claims

权利要求 Rights request
1. 一种含银成分的废弃物回收处理方法， 其特征在于， 步骤包括： A method for recycling waste containing silver components, characterized in that the steps include:
酸液制备及反应步骤： 制备酸液， 并将至少一种含银成分的废弃物与该酸液进行第一反 应步骤， 以产出已回收处理的含银成分的酸液混合物；  Acid preparation and reaction steps: preparing an acid solution, and performing at least one waste containing silver component with the acid solution in a first reaction step to produce an acid solution mixture of the recovered silver-containing component;
安定化步骤： 制备醇液， 并将该己回收处理的含银成分的酸液混合物与该醇液进行第二 反应步骤， 以产出已安定化的含银成分的酸液混合物； 以及  The stabilization step: preparing an alcohol liquid, and performing a second reaction step of the recovered silver component-containing acid liquid mixture with the alcohol liquid to produce a stabilized silver component-containing acid liquid mixture;
析出还原步骤： 将该己安定化的含银成分的酸液混合物与碱性化合物及电阻率为 18.2 ΜΩ-cm的去离子水进行第三反应步骤， 以产出回收的银半成品。  Precipitation reduction step: The aqueous solution of the stabilized silver-containing component is subjected to a third reaction step with a basic compound and deionized water having a resistivity of 18.2 Μ Ω-cm to produce a recovered silver semi-finished product.
2. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该酸液制备及反 应步骤中的该酸液为硝酸 /盐酸混合酸液、 硝酸 /醋酸混合酸液、 盐酸 /醋酸混合酸液、 硫酸或 者是醋酸， 而该硝酸 /盐酸混合酸液、 该硝酸 /醋酸混合酸液或该盐酸 /醋酸混合酸液的混合比 例为 1 :1-10或者是 1-10: 1。  The method for recovering waste containing silver component according to claim 1, wherein the acid solution in the acid preparation and reaction step is a nitric acid/hydrochloric acid mixed acid solution, a nitric acid/acetic acid mixed acid solution, Hydrochloric acid/acetic acid mixed acid solution, sulfuric acid or acetic acid, and the mixed ratio of the nitric acid/hydrochloric acid mixed acid solution, the nitric acid/acetic acid mixed acid solution or the hydrochloric acid/acetic acid mixed acid solution is 1:1-10 or 1-10 : 1.
3. 如权利要求 1或 2所述的含银成分的废弃物回收处理方法， 其特征在于， 该酸液制备 及反应步骤中的该第一反应步骤包括一个第一段反应参数及一个第二段反应参数， 该第一段 反应参数包括 10-40°C的反应温度及 1小时的反应时间， 该第二段反应参数包括 65-80°C的反 应温度及 1小时的反应时间。  The method for recovering waste containing silver component according to claim 1 or 2, wherein the first reaction step in the acid preparation and reaction step comprises a first reaction parameter and a second The reaction parameters of the first stage include a reaction temperature of 10-40 ° C and a reaction time of 1 hour. The second reaction parameter includes a reaction temperature of 65-80 ° C and a reaction time of 1 hour.
4. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该至少一种含银 成分的废弃物为电脑零件、 银制品、 银制半成品、 含银化学原料或者是含银矿物。  The waste treatment method for a silver-containing component according to claim 1, wherein the at least one silver-containing waste is a computer component, a silver product, a silver semi-finished product, a silver-containing chemical raw material, or Silver-containing minerals.
5. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该安定化步骤的 该第二反应步骤包括一个第一段反应参数及一个第二段反应参数， 该第一段反应参数包括 10-40 °C的反应温度及 0.5-3小时的反应时间， 该第二段反应参数包括 60- 100 °C的反应温度及 0.5-3小时的反应时间。  The method for recovering waste containing silver component according to claim 1, wherein the second reaction step of the stabilization step comprises a first reaction parameter and a second reaction parameter, the first A reaction parameter includes a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours. The second reaction parameter includes a reaction temperature of 60-100 ° C and a reaction time of 0.5-3 hours.
6. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该安定化步骤的 该醇液为异丙醇、 正丁醇、 仲戊醇、 丙三醇、 丁四醇、 戊五醇、 乙二醇或乙醇 /丙酮的混合物， 而乙醇 /丙酮混合物中二者的比例为 1 : 0或 1 : 1或 1 : 2或者是 1 : 4。  The method for recovering waste containing silver component according to claim 1, wherein the alcohol solution in the stabilization step is isopropanol, n-butanol, sec-pentanol, glycerol, and tetrabutyl A mixture of alcohol, pentaerythritol, ethylene glycol or ethanol/acetone, and the ratio of the two in the ethanol/acetone mixture is 1:0 or 1:1 or 1:2 or 1:4.
7. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该析出还原步骤 中的该第三反应步骤包括一个第一段反应参数及一个第二段反应参数， 该第一段反应参数包 括 10-40 °C的反应温度及 0.5-3小时的反应时间， 该第二段反应参数包括 80-100°C的反应温度 及 0.5-3小时的反应时间。 The method for recovering waste containing silver component according to claim 1, wherein the third reaction step in the precipitation reduction step comprises a first reaction parameter and a second reaction parameter, The first stage reaction parameters include a reaction temperature of 10-40 ° C and a reaction time of 0.5-3 hours. The second stage reaction parameters include a reaction temperature of 80-100 ° C and a reaction time of 0.5-3 hours.
8. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该析出还原步骤 中的该碱性化合物为碳酸钾、 碳酸钠、 氢氧化钾、 氢氧化钠或者是氨水。 The method for recovering waste containing silver component according to claim 1, wherein the basic compound in the precipitation reduction step is potassium carbonate, sodium carbonate, potassium hydroxide, sodium hydroxide or ammonia water. .
9. 如权利要求 1所述的含银成分的废弃物回收处理方法， 其特征在于， 该析出还原步骤 中还应用芴、 9-溴芴、 2,7-二溴芴、 2-氨基 -7-溴芴、 噻吩、 2-溴噻分、 3,4-二溴噻吩、 2-三丁 基曱锡烷基噻吩、 2,5-二溴噻吩、 4-氨基 -2, 1,3-苯并噻二唑、 3-溴噻吟、 4,7-二溴 -2,1,3-苯并噻 二唑、 溴化银、 碘化银或 2-碘噻吩。  The method for recovering waste containing silver component according to claim 1, wherein the precipitation reduction step further comprises ruthenium, 9-bromofluorene, 2,7-dibromofluorene, 2-amino-7. -bromopurine, thiophene, 2-bromothiophene, 3,4-dibromothiophene, 2-tributylstanstanylthiophene, 2,5-dibromothiophene, 4-amino-2,1,3-benzene And thiadiazole, 3-bromothiazide, 4,7-dibromo-2,1,3-benzothiadiazole, silver bromide, silver iodide or 2-iodothiophene.
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