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    • 1. 发明专利
    • 重金属除去方法
    • 拆除重金属的方法
    • JP2015020103A
    • 2015-02-02
    • JP2013149357
    • 2013-07-18
    • 住友金属鉱山株式会社Sumitomo Metal Mining Co Ltd
    • TANIZAKI KAZUNORINAKANO OSAMUKUBOTA NAOKI
    • C02F1/62C01B17/20C01F11/46C02F1/58
    • 【課題】銅製錬で生じた廃酸から重金属を除去する除去率を向上させる。【解決手段】廃酸から重金属を除去する第1の重金属除去工程と、第1の重金属除去工程後の廃酸に炭酸カルシウムを添加して、硫酸を石膏として除去する石膏工程と、石膏工程後の廃酸に水酸化ナトリウムを添加してpHを2.3〜4.0とし、硫化水素ナトリウムを添加して酸化還元電位が−5mV〜−110mVになるまで硫化を行い、残存する重金属を硫化物として除去する第2の重金属除去工程との工程により重金属を除去する。【選択図】図1
    • 要解决的问题:提供一种以高去除率的铜冶炼中产生的废酸中除去重金属的方法。解决方案:去除重金属的方法包括:从废酸中除去重金属的第一步骤; 在去除重金属的第一步骤之后,向废酸中加入碳酸钙的抹灰步骤; 以及通过在抹灰步骤之后向废酸中加入氢氧化钠以除去重金属,以便具有2.3至4.0的pH,并进一步加入硫酸氢钠直到氧化还原电位达到-5mV至-110mV的第二步骤 ,用于硫化以除去形成硫化物的剩余重金属。
    • 2. 发明专利
    • Wastewater treatment system and wastewater treatment method using the same
    • 废水处理系统和使用该方法的废水处理方法
    • JP2010094647A
    • 2010-04-30
    • JP2008269769
    • 2008-10-20
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • NAKANO OSAMUKUBOTA NAOKITAKEDA KAZUNORI
    • C02F1/56C02F1/52C02F1/62C02F1/74C02F9/00
    • PROBLEM TO BE SOLVED: To provide a wastewater treatment system by which an optimum amount of a polymer flocculant to be added is easily determined and the amount to be added is reliably controlled even when the content of heavy metal ions in raw water to be treated varies, and to provide a wastewater treatment method using the same. SOLUTION: The wastewater treatment system mainly includes: a raw-water flowmeter for measuring the flow volume of the raw water to be treated; a primary reaction tank for adding an inorganic flocculant and a neutralizer to treat the raw water; an oxidation tank for adding an oxidizing agent to the obtained slurry to treat it; a secondary reaction tank for adding the neutralizer to the oxidized raw water to effect a reaction; an addition amount adjusting device for adding the polymeric flocculant to a flocculation tank into which the neutralized slurry is introduced; a precipitate settling tank for settling precipitates in the slurry; and a plant monitoring control device (DCS) for computing the amount of the polymeric flocculant to be added. The plant monitoring control device (DCS) computes the amount of the polymeric flocculant to be added from the relationship between the amount of the neutralizer used and the amount of the precipitates generated, using the data of the flow volume of the raw water and the addition rate of the neutralizer, and transmits it to the addition amount adjusting device. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种废水处理系统,其中容易确定要添加的聚合物絮凝剂的最佳量,并且即使当原水中的重金属离子的含量为 待处理变化,并提供使用其的废水处理方法。 解决方案:废水处理系统主要包括:用于测量待处理原水流量的原水流量计; 用于添加无机絮凝剂和中和剂以处理原水的初级反应槽; 用于向所得浆料中加入氧化剂以进行处理的氧化罐; 用于将中和剂加入氧化原水进行反应的二次反应槽; 添加量调节装置,用于将聚合物絮凝剂加入到其中引入中和的浆料的絮凝罐中; 沉淀沉淀池,用于沉淀浆料中的沉淀物; 以及用于计算要添加的聚合物絮凝剂的量的设备监控控制装置(DCS)。 工厂监控控制装置(DCS)使用原水的流量和添加量的数据,根据所使用的中和剂的量与所生成的沉淀物的量之间的关系计算添加的聚合物絮凝剂的量 中和器的速率,并将其发送到添加量调节装置。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • 硫酸原料ガスの乾燥方法
    • 干燥硫酸原料气的方法
    • JP2015054805A
    • 2015-03-23
    • JP2013190504
    • 2013-09-13
    • 住友金属鉱山株式会社Sumitomo Metal Mining Co Ltd
    • KUBOTA NAOKITANIZAKI KAZUNORI
    • C01B17/74
    • 【課題】プラントの処理能力を低下させたり原料ガスの吸引ファンの電力コストを増大させたりすることなく、原料ガス中に含まれるミストや水蒸気などの水分を簡易に除去する方法を提供する。【解決手段】硫酸製造プラントの前段に設けた乾燥塔1において入口側ガス配管2を介して供給される原料ガス1Nm3に対して5〜10?10−3m3の硫酸を循環させながら気液接触させて該原料ガス中の水分を除去する原料ガスの乾燥方法であって、循環している硫酸の一部を抜き出して入口側配管2内を10〜20m/秒の流速で流れる原料ガス中に好適には噴霧する向きを原料ガスの流れの向きに略一致させて噴霧する。噴霧された硫酸を含む原料ガスが乾燥塔1に達するまでの時間は0.05〜0.5秒であることが好ましい。【選択図】図1
    • 要解决的问题:提供一种除去湿气的方法,例如, 原料气体中所含的雾气和水蒸气,而不会降低设备的处理能力,或者增加原料气体的吸风机的电力成本。解决方案:干燥原料气体的方法包括使循环硫酸 在设置在硫酸生产装置的前段的干燥塔1中浓度为5-10×10min的气体与通过入口侧气体配管2供给的原料气体1Nm接触的酸,以便 除去原料气体中的水分,将一部分循环的硫酸以10-20m / s的流量,优选在喷雾方向上喷射流入入口侧配管2的原料气体 几乎等于原料的流动方向。 含有喷射硫酸的原料气体到达干燥塔1的时间优选为0.05〜0.5s。
    • 4. 发明专利
    • Method for sieving solid catalyst
    • 确定固体催化剂的方法
    • JP2014062015A
    • 2014-04-10
    • JP2012208748
    • 2012-09-21
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • TAKEDA KAZUNORIKUBOTA NAOKINAKANO OSAMU
    • C01B17/79B01J23/22
    • PROBLEM TO BE SOLVED: To provide a method for sieving a catalyst, with which fine powder is removed from a solid catalyst used in a sulfuric acid production process or the like, and with which a burden of maintenance operation is drastically reduced.SOLUTION: In a process to convert gaseous SOinto gaseous SO, a method for sieving a catalyst to remove fine powder 20, formed by pulverization of a portion of a catalyst layer, from the solid catalyst layer 2 stacked on a sieve-shaped catalyst receiver 3 in a converter 10, is characterized in that sieving is performed by making the catalyst receiver 3 vibrate and the fine powder 20 be sieved out from the catalyst receiver 3 in a state in which the catalyst layer 2 is stacked on the catalyst receiver 3.
    • 要解决的问题:提供一种用于筛分催化剂的方法,从硫酸生产过程等中使用的固体催化剂除去细粉末,维护操作的负担大大降低。解决方案:在 一种转化气态SO 2至气态SO的方法,一种用于筛选催化剂以除去通过粉碎一部分催化剂层而形成的细粉末的方法,该催化剂层从叠层在转炉中的筛状催化剂接收器3上的固体催化剂层2 10,其特征在于,通过使催化剂接收体3振动,并且在催化剂接收体3堆叠催化剂层2的状态下,将细粉20从催化剂接收体3中过筛进行筛分。
    • 5. 发明专利
    • Production method of sodium bisulfite
    • 钠双晶体的生产方法
    • JP2014114172A
    • 2014-06-26
    • JP2012267295
    • 2012-12-06
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • KUBOTA NAOKITAKEDA KAZUNORI
    • C01D5/00B01D53/34B01D53/50B01D53/77
    • PROBLEM TO BE SOLVED: To provide a production method of sodium bisulfite at a lower cost than that of a conventional method, capable of producing substantially usable sodium bisulfite (NaHSO) using as a material an absorption effluent that is generated in a desulfurization treatment process of a SOgas, which requires the desulfurization treatment for detoxification or the like, such as an effluent gas of metal smelting and an effluent gas from a sulfuric acid production process using the effluent gas.SOLUTION: A production method of sodium bisulfite includes: a final absorption process ST 40 in which a sulfuric acid production effluent gas 2 discharged from a sulfuric acid production process ST 30 is reacted with an absorption agent 3 including caustic soda to obtain an absorption effluent 4 that includes a sodium bisulfite component; and a sodium bisulfite quality improving process ST 50 in which the sodium bisulfite component in the absorption effluent 4 is increased. The sodium bisulfite quality improving process ST 50 is a process in which the absorption effluent 4 is reacted with a smelting effluent gas 1 including a sulfur component generated in a metal smelting process ST 10, and thereby the sodium bisulfite component in the absorption effluent 4 is increased.
    • 要解决的问题:以比常规方法更低的成本提供亚硫酸氢钠的生产方法,能够生产基本上可用的亚硫酸氢钠(NaHSO),其使用在脱硫处理过程中产生的吸收流出物作为材料 需要脱硫处理等的SO气体,例如金属冶炼废气和使用废气的硫酸生产工艺的废气。解决方案:亚硫酸氢钠的生产方法包括:最终吸收 将从硫酸生产工序ST30排出的硫酸生成流出气体2与包含苛性钠的吸收剂3反应的工序ST40,得到含有亚硫酸氢钠成分的吸收流出物4; 和其中吸收流出物4中的亚硫酸氢钠组分增加的亚硫酸氢钠质量改进方法ST50。 亚硫酸氢钠质量改进方法ST50是使吸收流出物4与包含在金属冶炼工序ST10中生成的硫成分的冶炼废气1反应的方法,从而吸收流出物4中的亚硫酸氢钠成分为 增加。
    • 6. 发明专利
    • Method for recovering rhenium
    • 回收铑的方法
    • JP2013249503A
    • 2013-12-12
    • JP2012124235
    • 2012-05-31
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • KUBOTA NAOKITAKEDA KAZUNORI
    • C22B61/00B01J41/04B01J49/00C02F1/42C22B3/42C22B3/44C22B7/00C22B7/02
    • Y02P10/234
    • PROBLEM TO BE SOLVED: To provide a method for efficiently separating/recovering rhenium, which achieves reduction of an environmental load, and suppresses cost, and prevents impurities from influencing recovery of rhenium when rhenium is separated/recovered from an aqueous solution of rhenium containing impurities by using an anion exchange resin.SOLUTION: In a method, rhenium is adsorbed by passing an aqueous solution containing rhenium and impurities through an anion exchange resin of a quaternary ammonium salt type, then the rhenium is eluted by passing a sulfuric acid solution of a concentration of 1.5 moles/l or more and 3.5 moles/l or less through the anion exchange resin adsorbing the rhenium, and the rhenium is separated/recovered as a sulfide from the solution obtained after elution by adding a sulfidizing agent.
    • 要解决的问题:提供一种有效分离/回收铼的方法,其实现环境负荷的降低,并且抑制成本,并且当从含铼杂质的水溶液中分离/回收铼时,防止杂质影响铼的回收。 通过使用阴离子交换树脂。方法:通过使含有铼和杂质的水溶液通过季铵盐型阴离子交换树脂使铼吸附,通过使铼的硫酸溶液 通过吸附铼的阴离子交换树脂,浓度为1.5摩尔/升以上至3.5摩尔/升以下,通过添加硫化剂,从洗脱后得到的溶液中分离回收铼。
    • 7. 发明专利
    • Desulfurization method in smelting process
    • 冶炼过程中的脱硫方法
    • JP2014114970A
    • 2014-06-26
    • JP2012267296
    • 2012-12-06
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • TAKEDA KAZUNORIKUBOTA NAOKIKOMORI SHINTARO
    • F27D17/00B01D53/14B01D53/50B01D53/77C01B17/60C22B15/00C22B15/06
    • PROBLEM TO BE SOLVED: To provide a desulfurization method capable of efficiently performing desulfurization at a low cost even when a plurality of SOgases having different concentrations and different states of concentration displacement are generated and a concentration change of any SOgas is extremely abrupt in a smelting process, in the desulfurization method in smelting processes of iron and non-ferrous metal.SOLUTION: A desulfurization method includes a main desulfurization process ST61 which treats SOgas originated from smelting discharge gas 11 and an auxiliary desulfurization process ST62 which treats SOgas originated from environmental recovery gas 12 having an SOconcentration lower than that of high-concentration type SOgas 11. Therein, the main desulfurization process ST61 is a process which performs desulfurization of SOgas originated from the smelting discharge gas 11 by using a solution containing NaOH, and the auxiliary desulfurization process ST62 supplies main desulfurization process waste liquid 20 containing NaSOduring auxiliary desulfurization process and, thereby, reacts SOoriginated from the environmental recovery gas 12 and NaSOand performs desulfurization.
    • 要解决的问题:为了提供即使在生成浓度不同的浓度和不同的浓度位移的多个SO gols的情况下也能够以低成本有效地进行脱硫的脱硫方法,并且任何SO气体的浓度变化在冶炼过程中非常突然 ,在铁和有色金属冶炼过程中的脱硫方法。解决方案:脱硫方法包括处理来自冶炼排放气体11的SO的主要脱硫工艺ST61和处理来自环境回收气体的SO的辅助脱硫工艺ST62 12,其浓度低于高浓度型SO气11的浓度。其中,主脱硫工艺ST61是通过使用含有NaOH的溶液进行来自熔融放电气体11的SO的脱硫,辅助脱硫工序ST62 供应主要脱硫 在辅助脱硫工艺中含有NaSO的过程废液20,从而从环境回收气体12和NaSO中反应SO,并进行脱硫。
    • 8. 发明专利
    • Method for separating rhenium from solution containing perrhenic acid
    • 从含有柠檬酸的溶液中分离铑的方法
    • JP2011058016A
    • 2011-03-24
    • JP2009205509
    • 2009-09-07
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • ASANO SATOSHIKUDO TAKASHIKUBOTA NAOKITAKEDA KAZUNORI
    • C22B61/00C02F1/62C22B3/44C22B7/02
    • Y02P10/234
    • PROBLEM TO BE SOLVED: To provide an inexpensive method, even if the content of rhenium in raw material is remarkably varied, which can stably and efficiently separate rhenium. SOLUTION: In the method for separating rhenium from a solution containing one or more elements selected from copper, zinc, cadmium and arsenic, and perrhenic acid, the method comprises: a first stage 1 where alkali such as sodium hydroxide is added to the solution so as to produce precipitates, and the solution containing the precipitates is subjected to solid-liquid separation by a separation process such as filtration; a second stage 2 where acid such as sulfuric acid is added to a separated liquid obtained by the solid-liquid separation, and the concentration of the acid is regulated to a range satisfying the equivalent concentration of 1.0 to 4.0 normal; and a third stage 3 where a sulfurizing agent such as sodium hydrogensulfide is added to the regulation liquid obtained by the addition of the acid so as to produce sulfide precipitates, and the sulfide precipitations are separated from the liquid after the sulfurization. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供廉价的方法,即使原料中的铼的含量显着变化,其可以稳定且有效地分离铼。 解决方案:在从含有选自铜,锌,镉和砷中的一种或多种元素的溶液和高铼酸的溶液中分离铼的方法中,所述方法包括:将第一阶段1加入碱如氢氧化钠 该溶液以产生析出物,含有析出物的溶液通过分离过程如过滤进行固液分离; 第二阶段2,其中将酸如硫酸加入到通过固液分离得到的分离液中,并将酸的浓度调节至满足当量浓度1.0至4.0法定的范围; 和第三阶段3,其中向通过加入酸获得的调节液中加入硫化氢等硫化剂,以产生硫化物沉淀物,硫化物沉淀物在硫化后与液体分离。 版权所有(C)2011,JPO&INPIT