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    • 1. 发明公开
    • 폐탈질 촉매로부터 바나듐, 텅스텐, 티타늄 성분의 분리회수방법
    • 从废物脱氧催化剂分离钒,钨和钛的方法
    • KR1020030083558A
    • 2003-10-30
    • KR1020020080324
    • 2002-12-16
    • 유정근주식회사 한길유미선
    • 유정근유미선홍성창
    • C22B7/00
    • Y02P10/212
    • PURPOSE: A process for separating and recovering metals such as titanium, vanadium and tungsten from waste deNOx catalyst having principal constituents of titanium, vanadium and tungsten effectively and economically is provided. CONSTITUTION: The method comprises a step of selectively eluting vanadium and tungsten only in an aqueous solution phase from waste deNOx catalyst containing 70 to 90 wt.% of TiO2, 1 to 10 wt.% of V2O5 and 10 to 20 wt.% of WO3 through leaching process using at least one alkali solution selected from NaOH, KOH, NH4OH and Ca(OH)2 solutions, and recovering titanium oxide that is not eluted in a solid phase through filtering process; and a step of recovering the vanadium and tungsten eluted in the aqueous solution phase as vanadium oxide and tungsten oxide, wherein the vanadium and tungsten eluted in the aqueous solution phase are separated by precipitation, solvent extraction or a combination thereof, wherein concentration of alkali solution used in the leaching process is 0.1 N or more, and a consumption amount of the alkali solution is at least 2 times or more of a stoichiometrically required amount, and wherein the titanium oxide recovered in a solid phase is reused as raw material for deNOx catalyst, filler, building admixture or TiO2 photocatalyst raw material.
    • 目的:有效和经济地提供了具有钛,钒和钨主要成分的废脱硝催化剂分离和回收钛,钒和钨等金属的方法。 构成:该方法包括仅在含有70至90重量%的TiO 2,1至10重量%的V 2 O 5和10至20重量%的WO 3的废脱硝酸催化剂的水溶液相中选择性地洗脱钒和钨的步骤 通过使用至少一种选自NaOH,KOH,NH 4 OH和Ca(OH)2溶液的碱溶液的浸出方法,并通过过滤回收未在固相中洗脱的氧化钛; 以及回收在水溶液相中洗脱的钒和钨作为氧化钒和氧化钨的步骤,其中在水溶液相中洗脱的钒和钨通过沉淀,溶剂萃取或其组合分离,其中碱溶液的浓度 用于浸出过程中为0.1N以上,碱溶液的消耗量为化学计量要求量的2倍以上,其中以固相回收的氧化钛被再次用作脱硝催化剂的原料 ,填料,建筑外加剂或TiO2光催化剂原料。
    • 5. 发明公开
    • 폐탈질 촉매의 재생방법
    • 再生脱硝催化剂的方法
    • KR1020040042667A
    • 2004-05-20
    • KR1020020071244
    • 2002-11-15
    • 유정근유미선
    • 유정근김경수유미선
    • B01J38/48
    • B01J38/00B01J23/92B01J38/60B01J38/64
    • PURPOSE: A method for regenerating DeNOx catalyst is provided, which is characterized in that instead of pulverization of exhausted DeNOx catalyst, the outer surface of DeNOx catalyst is peeled off by a polisher to remove inactivated part of the DeNOx catalyst. CONSTITUTION: The method comprises steps of (a) pretreating the surface of a waste DeNOx catalyst containing 70-90 wt.% of TiO2, 1-10 wt.% of V2O5 and 9-20 wt.% of WO3 with an alkaline solution; (b) abrading the pretreated surface of the waste DeNOx catalyst with a polisher through a dry or a wet process; (c) washing the waste DeNOx catalyst with an acid solution; and (d) washing the posttreated DeNOx catalyst, followed by drying.
    • 目的:提供一种再生DeNOx催化剂的方法,其特征在于,代替粉末化的脱硝催化剂,DeOx催化剂的外表面被抛光剂剥离以除去DeNOx催化剂的失活部分。 方法:该方法包括以下步骤:(a)用碱溶液预处理含有70-90重量%TiO 2,1-10重量%V 2 O 5和9-20重量%WO 3的废弃脱硝催化剂的表面; (b)用抛光机通过干法或湿法研磨废除的DeNOx催化剂的预处理表面; (c)用酸溶液洗涤废弃的DeNOx催化剂; 和(d)洗涤后处理的脱硝催化剂,然后干燥。
    • 6. 发明公开
    • 폐탈질촉매로부터 바나듐, 텅스텐, 티타늄 성분의분리회수방법
    • 从废气脱氮催化剂中分离和回收钒,钨和钛的方法
    • KR1020030089401A
    • 2003-11-21
    • KR1020020080325
    • 2002-12-16
    • 유정근유미선
    • 유정근유미선홍성창
    • C22B7/00
    • Y02P10/234
    • PURPOSE: A process for effectively separating and recovering metal components such as titanium, vanadium and tungsten from waste De-NOx catalyst comprising titanium, vanadium and tungsten as principal components is provided. CONSTITUTION: The method comprises a step of selectively eluting vanadium only in an aqueous solution phase by applying 50 to 200 ml of at least one acid solution selected from hydrochloric acid solution, nitric acid solution, sulfuric acid solution, phosphoric acid solution, citric acid solution and acetic acid solution to 100 weight parts of waste De-NOx catalyst containing 70 to 90 wt.% of TiO2, 1 to 10 wt.% of V2O5 and 10 to 20 wt.% of WO3, and separating vanadium from tungsten and titanium through the filtering process; a step of selectively eluting tungsten only in an aqueous solution phase by applying 50 to 200 ml of at least one alkali solution selected from NaOH, KOH and NH4OH solutions to 100 weight parts of residue containing tungsten and titanium separated through the filtering process, and separating tungsten from titanium oxide through the filtering process; and a step of recovering titanium in solid phase by washing and drying the titanium oxide.
    • 目的:提供从含有钛,钒和钨作为主成分的废弃物脱钛催化剂有效分离和回收钛,钒,钨等金属成分的方法。 方案:该方法包括仅通过在水溶液相中选择性地洗脱钒的步骤,通过加入至少一种选自盐酸溶液,硝酸溶液,硫酸溶液,磷酸溶液,柠檬酸溶液的至少一种酸溶液 和乙酸溶液加入到100重量份的含有70至90重量%的TiO 2,1至10重量%的V 2 O 5和10至20重量%的WO 3的废弃的De-NO x催化剂中,并将钒与钨和钛分离通过 过滤过程; 通过将50-200毫升的选自NaOH,KOH和NH 4 OH溶液的至少一种碱溶液加入到100重量份的通过过滤工艺分离的钨和钛的残余物中,仅在水溶液相中选择性洗脱钨的步骤, 钨通过氧化钛过滤; 以及通过洗涤和干燥氧化钛来在固相中回收钛的步骤。
    • 7. 发明公开
    • 초속경 알루미나 시멘트 원료의 제조방법 및 상기 원료를함유하는 초속경 시멘트
    • 快速成型铝水泥原料的制备和含原料的快速凝固水泥
    • KR1020020054282A
    • 2002-07-06
    • KR1020020028522
    • 2002-05-22
    • 유정근유미선
    • 유정근유미선
    • C04B7/32
    • C04B7/32C04B14/303C04B18/08C04B18/141Y02W30/92Y02W30/94
    • PURPOSE: A preparation method of rapid set alumina cement raw materials using blast furnace slag or hard coal ash(or bauxite)-added blast furnace slag is provided. The resultant alumina cement including raw materials has much shortened hardening time and saved production cost compared with conventional alumina cement. CONSTITUTION: The preparation method of rapid set alumina cement raw materials is as follows: (i) eluting metal-contained mixture by reacting 100pts.wt. of blast furnace slag or hard coal ash(or bauxite)-added blast furnace slag with 180-250pts.wt. of mixed acid containing HNO3 and HCl(or H2SO4) in a ratio of 100 : 1-5, wherein hard coal ash-added blast furnace slag includes 20-50wt.% of hard coal ash and 50-80wt.% of blast furnace slag, and bauxite-added blast furnace slag contains 10-30wt.% of bauxite and 70-90wt.% of blast furnace slag; (ii) adjusting pH of the eluted mixture between 4-7 by adding CaO or Ca(OH)2, and adding 1-2ml of H2O2 as an oxidant, and 0.1-2wt.% of polymer flocculant to precipitate colloidal metal hydroxides; (iii) filtering to get precipitates such as Al(OH)3, Fe(OH)3 and Mg(OH)2, etc.; (iv) drying, and sintering at 600-900deg.C for 1-4hrs. to form metal oxides. The rapid set alumina cement is obtained by mixing 8-50wt.% of the prepared raw materials of rapid set alumina cement with ordinary cement.
    • 目的:提供使用高炉渣或硬煤灰(或铝土矿)的高炉矿渣的快速凝固氧化铝水泥原料的制备方法。 与常规氧化铝水泥相比,包括原料在内的所得氧化铝水泥具有大大缩短的硬化时间并节省生产成本。 规定:快速凝固氧化铝水泥原料的制备方法如下:(i)通过使100重量份 高炉矿渣或硬煤灰(或铝土矿) - 高炉矿渣,含180-250pts.wt。 的含有HNO 3和HCl(或H 2 SO 4)的混合酸的比例为100:1-5,其中硬煤灰添加高炉渣包括20-50重量%的硬煤灰和50-80重量%的高炉渣 ,含铝土矿的高炉矿渣含有10-30重量%的铝土矿和70-90重量%的高炉矿渣; (ii)通过加入CaO或Ca(OH)2调节洗脱混合物的pH值,并加入1-2ml作为氧化剂的H 2 O 2和0.1-2%的聚合物絮凝剂沉淀胶态金属氢氧化物; (iii)过滤以得到诸如Al(OH)3,Fe(OH)3和Mg(OH)2等沉淀物; (iv)干燥,600-900℃烧结1-4小时。 以形成金属氧化物。 通过将8-50重量%的快速凝固氧化铝水泥原料与普通水泥混合,得到快速凝固氧化铝水泥。
    • 8. 发明授权
    • 물유리 및 에어로겔로부터 제조된 세라믹 다공체 및 이의 제조방법
    • 由硅酸钠和气凝胶制备的多孔陶瓷及其制备方法
    • KR101129375B1
    • 2012-03-20
    • KR1020090039031
    • 2009-05-04
    • 유미선
    • 유미선
    • C04B38/08C04B33/04
    • 본 발명은 물유리의 발포로 형성된 기공과 에어로겔의 미세한 기공의 상승작용에 의한 우수한 단열성, 내열성 및 초경량성을 갖는 물유리 및 에어로겔로부터 제조된 세라믹 다공체 및 이의 제조방법에 관한 것이다. 본 발명에 의하면, 물유리와 무기첨가제로서 에어로겔이 2:1 내지 8:1 중량비로 혼합된 소성 혼합물의 소성체인 세라믹 다공체; 및 물유리와 무기첨가제로서 에어로겔을 2:1 내지 8:1 중량비로 혼합하여 소성 혼합물을 준비한 후, 소성 혼합물을 원하는 모양으로 성형하고 120 내지 800℃에서 10 분 내지 2시간동안 소성하는 단계를 포함하는 세라믹 다공체 제조방법이 제공된다. 물유리와 에어로겔의 혼합물로부터 제조되는 본 발명에 의한 새로운 세라믹 소성체는 우수한 단열성을 가질 뿐만 아니라, 중량면에서도 초경량의 소성체로서 신소재의 경량화 및 에너지 절감 기능에 부합되는 것으로 첨단소재로서 다양한 분야에 적용될 수 있다.
      물유리, 에어로겔, 유기용매, 무기재료, 세라믹 다공체, 소성, 발포, 초경량, 초단열