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公开(公告)号：KR1020010004434A
公开(公告)日：2001-01-15
申请号：KR1019990025081
申请日：1999-06-29
Applicant: 한국화학연구원
IPC: B01J23/96
Abstract: PURPOSE: Provided is a process for regenerating an iron-palladium solid catalyst by an air-calcinating, the iron-palladium solid catalyst is used in a process for preparing cyclohexanol and cyclohexanone by a selective oxidation of cyclohexane. CONSTITUTION: The process for regenerating the iron-palladium solid catalyst comprises the steps of: recovering the iron-palladium solid catalyst from the process of the selective oxidation of the cyclohexane; precalcinating the used iron-palladium solid catalyst under a hydrogen atmosphere at a temperature of 100 to 150 °C; air-calcinating the precalcinated iron-palladium solid catalyst at a temperature of 100 to 150 °C.
Abstract translation: 目的：提供通过空气煅烧再生铁 - 钯固体催化剂的方法，铁 - 钯固体催化剂用于通过选择性氧化环己烷制备环己醇和环己酮的方法。 构成：再生铁 - 钯固体催化剂的方法包括以下步骤：从环己烷的选择性氧化过程中回收铁 - 钯固体催化剂; 在氢气氛下，在100〜150℃的温度下，预先使用铁 - 钯固体催化剂; 在100〜150℃的温度下对煅烧后的铁 - 钯固体催化剂进行空气煅烧。
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公开(公告)号：KR102198162B1
公开(公告)日：2021-01-05
申请号：KR1020190009864
申请日：2019-01-25
Abstract: 본발명은고강도(高强度) 구형(球形) 제올라이트성형체와그 제조방법에관한것으로, 더욱상세하게는제올라이트의무기계결합제로서여과및 수세가까다롭고, 기계적강도및 흡착능이떨어지는종래의점토류결합제를대신하여, 실리콘화합물과초고분자량폴리에틸렌화합물(UHMWPE)을혼합사용함으로써, 우수한질소분리능, 내마모성및 외형밀도를나타내어고풍량의고순도산소발생장치를위한유동층시스템의흡착제로매우유용하게적용할수 있는고강도구형제올라이트성형체와그의제조방법에관한것이다.
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公开(公告)号：KR1020130009434A
公开(公告)日：2013-01-23
申请号：KR1020110070552
申请日：2011-07-15
CPC classification number: C01F7/30 , B01J20/08 , B01J20/28004 , B01J20/28076 , B01J21/04 , B01J35/1019 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J37/0009 , B01J37/036 , B01J37/10 , B82Y30/00 , C01F7/34 , C01F7/448 , C01P2002/60 , C01P2004/04 , C01P2004/52 , C01P2004/64 , C01P2006/14
Abstract: PURPOSE: A manufacturing method of porous alumina is provided to have pseudoboehmite or boehmite structure which has fine and even particle distribution and big pore volume. CONSTITUTION: A manufacturing method of porous alumina comprises the following steps: concurrently inserting sodium aluminate solution and nitric acid or polyaluminumchloride(PAC) solution into a continuous flow mixture machine; forming hydrogel by instantaneous neutralization reaction of the sodium aluminate solution and nitric acid or polyaluminum chloride solution; converting the hydrogel into colloidal sol by staying the hydrogel in the mixture machine for 5-20 seconds; and manufacturing porous alumina having pseudoboehmite or boehmite structure by crystallizing the colloidalsole at 90-150 deg. Celsius in a hydrothermal synthesis reactor. [Reference numerals] (AA) Sodium aluminate solution + a PAC solution, or a sodium aluminate solution + a nitric acid solution; (BB) Hydrogel; (CC) Colloidal sol; (DD) Determination; (EE) Dispersion; (FF) Filtration, washing, drying; (GG) Porous alumina
Abstract translation: 目的：提供多孔氧化铝的制造方法，使假勃姆石或勃姆石结构具有细微均匀的颗粒分布和大的孔体积。 构成：多孔氧化铝的制造方法包括以下步骤：将铝酸钠溶液和硝酸或聚氯化铝（PAC）溶液同时插入连续流动混合机中; 通过铝酸钠溶液和硝酸或聚氯化铝溶液的瞬时中和反应形成水凝胶; 通过将混合机中的水凝胶保持5-20秒，将水凝胶转化成胶体溶胶; 并制造具有假勃姆石或勃姆石结构的多孔氧化铝，通过在90-150度下使胶态底胶结晶。 摄氏温度在水热合成反应器中。 （标号）（AA）铝酸钠溶液+ PAC溶液或铝酸钠溶液+硝酸溶液; （BB）水凝胶; （CC）胶体溶胶; （DD）测定; （EE）分散; （FF）过滤，洗涤，干燥; （GG）多孔氧化铝
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公开(公告)号：KR1020090122027A
公开(公告)日：2009-11-26
申请号：KR1020080048222
申请日：2008-05-23
CPC classification number: C01B39/22 , B01J20/18 , B01J20/28078 , C01B13/02 , C01P2004/32 , C01P2004/60 , C01P2006/10 , C01P2006/16
Abstract: PURPOSE: A spherical zeolite molding body and a manufacturing method thereof are provided to offer improved mechanical intensity with high shape density by forming pores inside the molding body. CONSTITUTION: A manufacturing method of a spherical zeolite molding body comprises the following steps of: manufacturing the spherical zeolite molding body by mixing colloidal silica aqueous solution with a compound in which zeolite powder and cellulose-based compound are included; separating the spherical zeolite molding body having a particle diameter of 0.50 ~ 3.35 mm; manufacturing the spherical molding body in which the cellulose-based compound is removed; reacting an alkali aqueous solution and a sodium aluminate aqueous solution with the spherical molding body; ion-exchanging the spherical molding body with the alkali metal salt or alkaline-earth metal salt; and sintering the ion-exchanged spherical molding body at a temperature of 350 ~ 650 °C.
Abstract translation: 目的：提供一种球形沸石成型体及其制造方法，通过在成型体内形成孔，提供具有高形状密度的改善的机械强度。 构成：球状沸石成型体的制造方法，包括以下步骤：通过将胶体二氧化硅水溶液与其中包含沸石粉末和纤维素类化合物的化合物混合来制造球形沸石成型体; 分离粒径为0.50〜3.35mm的球状沸石成型体; 制造除去纤维素类化合物的球状成型体; 使碱性水溶液和铝酸钠水溶液与球形成型体反应; 将球形成型体与碱金属盐或碱土金属盐进行离子交换; 并在350〜650℃的温度下烧结离子交换球形成型体。
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公开(公告)号：KR100797141B1
公开(公告)日：2008-01-23
申请号：KR1020060081384
申请日：2006-08-26
Applicant: 한국화학연구원
IPC: C01B31/08
CPC classification number: C01B32/366 , B01J20/20 , B01J20/28019 , B01J20/28066 , C01B32/384 , C01P2004/32 , C01P2006/12
Abstract: A method for preparing spherical activated carbon granules is provided to improve the productivity of the spherical activated carbon granules, by rotating a mixture of pitch powder and carbon-based powder to form the spherical granules. Spherical activated carbon granules are prepared by using pitch as a starting source, and performing a rounding process, an oxidizing process, a carbonizing process, and an activating process. In the rounding process, spherical granules are formed by mixing pitch powder of no less than 120 mesh and carbon-based powder of no less than 200 mesh into each other and rotating the mixture while adding a water-soluble polymer solution into the mixture. Further, 60-90 wt.% of pitch powder is mixed with 10-40 wt.% of carbon powder.
Abstract translation: 提供制备球形活性炭颗粒的方法，通过旋转沥青粉和碳基粉末的混合物形成球形颗粒来提高球形活性炭颗粒的生产率。 球形活性炭颗粒通过使用沥青作为起始原料，并进行四舍五入法，氧化法，碳化法和活化法制备。 在四舍五入法中，通过将不少于120目的沥青粉末和不少于200目的碳基粉末混合并在混合物中加入水溶性聚合物溶液旋转混合物形成球形颗粒。 此外，60-90重量％的沥青粉与10-40重量％的碳粉混合。
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Patent Agency Ranking
公开(公告)号：KR1020040073712A
公开(公告)日：2004-08-21
申请号：KR1020030009387
申请日：2003-02-14
IPC: C01B39/38
CPC classification number: C01B39/38 , C01P2004/50 , C01P2004/61 , C01P2004/62
Abstract: PURPOSE: A process for preparing environmentally friendly ZSM-5 type zeolite having high unit productivity is provided. CONSTITUTION: The process for preparing ZSM-5 type zeolite comprises a step of proceeding hydrogelation reaction by adding a sodium aluminate aqueous solution to a composition silica source in which the inside of pores of the support is activated by adding water and sodium hydroxide aqueous solution to a porous silica support in such a way that composition for the whole reactant is controlled as in the following formula 1:£Na2O|4 to 11£Al2O3|1.0£SiO2|25 to 100£H2O|900 to 4500; and a step of hydrothermal synthesizing the whole reactant as agitating the whole reactant, wherein the porous silica support is an amorphous silica selected from white carbon, silica gel and fumed silica.
Abstract translation: 目的：提供一种制备具有高单位生产率的环保型ZSM-5型沸石的方法。 构成：制备ZSM-5型沸石的方法包括通过向组合物二氧化硅源中加入铝酸钠水溶液进行水凝胶化反应的步骤，其中载体孔的内部通过将水和氢氧化钠水溶液加入 一种多孔二氧化硅载体，使得整个反应物的组成如下式1所控制：£Na2O | 4至11£Al2O3 | 1.0£SiO2 | 25至100H2O | 900至4500; 和搅拌整个反应物的水热合成整个反应物的步骤，其中多孔二氧化硅载体是选自白炭黑，硅胶和煅制二氧化硅的无定形二氧化硅。
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公开(公告)号：KR101637934B1
公开(公告)日：2016-07-08
申请号：KR1020150044064
申请日：2015-03-30
Applicant: 한국화학연구원
Abstract: 본발명은다공성알루미노실리카의제조방법및 이에따라제조되는다공성알루미노실리카에관한것으로, 상세하게는결정형알루미노실리케이트를용액상으로분산시킨후, 산성용액을첨가하여산처리하는단계(단계 1); 상기단계 1에서산처리된알루미노실리케이트로염기성용액을첨가하여겔화(gelation)시키는단계(단계 2); 및상기단계 2에서겔화된알루미노실리케이트를수열합성하여알루미노실리카분말을제조하는단계(단계 3)를포함하는다공성알루미노실리카의제조방법을제공한다. 본발명에따른다공성알루미노실리카의제조방법은다공성알루미노실리카를제조함에있어서입도분포및 기공부피등을용이하게조절할수 있으며, 알루미늄및 실리콘의몰 비율이결정되어있는결정형알루미노실리케이트화합물을원료물질로사용함에따라용도에맞는알루미늄/실리콘의비를가지는결정형알루미노실리케이트화합물을적절히선택하여원하는알루미늄/실리콘비를가지는다공성알루미노실리카를제조할수 있다.
Abstract translation: 本发明涉及由此得到的多孔铝硅石和多孔铝硅石的制备方法。 特别地，制备多孔铝硅石的方法包括以下步骤：将结晶硅铝酸盐分散在溶液中并加入酸性溶液进行酸处理（步骤1）; 向在步骤1中进行酸处理的硅铝酸盐添加碱性溶液以进行凝胶化（步骤2）; 并将步骤2中胶凝的硅铝酸盐进行水热合成以获得铝硅粉（步骤3）。 制备铝硅石的方法可以容易地控制多孔铝硅石的粒度分布和孔体积。 可以通过使用具有预定摩尔比的铝与硅作为原料的结晶硅铝酸盐化合物，并且选择具有适合于特定用途的铝/硅比的结晶硅铝酸盐化合物，从而获得具有所需铝/硅比的多孔铝硅酸盐 。
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公开(公告)号：KR100853295B1
公开(公告)日：2008-08-20
申请号：KR1020070036380
申请日：2007-04-13
Applicant: 한국화학연구원
Abstract: An inorganic antimicrobial agent and a preparation method of the agent are provided to obtain excellent antimicrobial effect and to improve the applicability of the antimicrobial agent for cement concrete by impregnating antimicrobial metal ion in a support. A preparation method of an inorganic antimicrobial agent comprises steps of: 1) preparing metal ion aqueous solution by dissolving nickel compound alone or with an aid consisting of at least one selected from copper compound and zinc compound in water in order to obtain metal ion aqueous solution; 2) putting metal impregnation porous support in the metal ion solution and stirring the mixture at 20-80 °C for impregnation; 3) adding a reducing agent selected from hypochlorite, hypophosphate, aldehyde compound and formate to the solution having the metal ion and stirring the mixture in order to adhere the metal ion to the support; and 4) filtering, drying and grinding the support. The support is at least one selected from natural zeolite, synthetic zeolite, fly ash, bottom ash and alumina. The reducing agent is at least one selected from NaOCl, NaPH2O2.H2O, H2O2, HCHO and HCOONa. The inorganic antimicrobial agent prepared by the method is subjected to concrete sewer structure in order to prevent concrete corrosion.
Abstract translation: 提供无机抗微生物剂及其制备方法，以通过将抗微生物金属离子浸渍在载体中来获得优异的抗菌效果，并提高抗菌剂对水泥混凝土的适用性。 无机抗菌剂的制备方法包括以下步骤：1）通过将镍化合物单独或由至少一种选自铜化合物和锌化合物组成的助剂溶解在水中制备金属离子水溶液，以获得金属离子水溶液 ; 2）将金属浸渍多孔载体置于金属离子溶液中，并在20-80℃搅拌混合物进行浸渍; 3）将选自次氯酸盐，次磷酸盐，醛化合物和甲酸盐的还原剂加入到具有金属离子的溶液中并搅拌混合物以将金属离子粘附到载体上; 和4）过滤，干燥和研磨载体。 载体是选自天然沸石，合成沸石，飞灰，底灰和氧化铝中的至少一种。 还原剂是选自NaOCl，NaPH 2·2H 2 O，H 2 O 2，HCHO和HCOONa中的至少一种。 通过该方法制备的无机抗菌剂经受混凝土下水道结构，以防止混凝土腐蚀。
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公开(公告)号：KR100524697B1
公开(公告)日：2005-11-01
申请号：KR1020030019276
申请日：2003-03-27
Applicant: 한국화학연구원
IPC: C01B39/14
Abstract: 본 발명은 3A형 제올라이트 입상 성형체와 이의 제조방법에 관한 것으로, 더욱 상세하게는 제올라이트에 나트륨 실리케이트 수용액을 특정량 분무 배합하여 입상화한 다음 분급하고 일정 크기 이상의 입경을 가지는 입상 조성물은 칼륨염 수용액 처리한 후 탈수하여 3A형 제올라이트 입상 성형체를 제조하며, 상기 입경 범위를 벗어나는 입상 조성물은 다시 입상화 과정으로 재순환하는 과정으로 이루어지도록 구성함으로써, 기존의 제조공정과는 달리 제올라이트 분말을 입상화하기 이전에 나트륨형 제올라이트를 3A형의 칼륨 제올라이트로 전처리하는 공정이 생략되어 더욱 간단한 공정으로 이루어지며, 또한 기존의 입상화 과정에서 제올라이트의 기계적 강도를 증가시키기 위하여 사용하던 점토계 무기 결합제의 첨가없이 제올라이트 분말에 순수한 수용성 나트륨 실리케이트를 사용하여 입상화한 다음 칼륨 실리케이트를 형성시킴으로써 중합 및 부반응이 억제될 뿐만 아니라 입상 성형체의 결합력과 내마모성 등의 기계적 물성과 수분에 대한 선택적 흡착능이 보다 우수하여 특히 반도체 및 정밀화학 공정의 수분 흡착제로 사용될 경우 더욱 효과적으로 작용하는 진보된 3A형 제올라이트 입상 성형체와 이의 제조방법에 관한 것이다.
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公开(公告)号：KR1020040084302A
公开(公告)日：2004-10-06
申请号：KR1020030019276
申请日：2003-03-27
Applicant: 한국화학연구원
IPC: C01B39/14
CPC classification number: C01B39/026 , C01B39/14
Abstract: PURPOSE: 3A type granular zeolite is provided to obtain superior selective moisture adsorption capacity by controlling pore size of granular composition by a pretreatment omitted simple method, improving mechanical properties and excluding side reaction, and a preparation method of the 3A type granular zeolite is provided. CONSTITUTION: The preparation method comprises first process of granulating the blended material after blending zeolite with sodium silicate aqueous solution; second process of classifying the granulated material having diameter of 1 to 6 mm from the granulated material; and third process of separating and dehydrating granular compact prepared after dipping the granulated material classified in the classification process into potassium salt aqueous solution, wherein the preparation method comprises a process of recirculating granulated material except the granulated material having diameter of 1 to 6 mm classified in the second process to the first process, wherein zeolite of the first process is a mixture of 40 to 90 wt.% of zeolite powder newly added and 10 to 60 wt.% of zeolite granulated material recirculated after passing through the second process, wherein the sodium silicate aqueous solution has a concentration of 15 to 38%, wherein the first process is performed by granulating the blended material after blending 75 to 92 wt.% of zeolite with 8 to 25 wt.% of sodium silicate aqueous solution, wherein the potassium salt aqueous solution is potassium chloride aqueous solution, wherein dipping of the third process is performed in the temperature range of 20 to 40 deg.C. The 3A type granular zeolite is characterized in that it is prepared by a preparation method comprising first process of granulating the blended material after blending zeolite with sodium silicate aqueous solution; second process of classifying the granulated material having diameter of 1 to 6 mm from the granulated material; and third process of separating and dehydrating granular compact prepared after dipping the granulated material classified in the classification process into potassium salt aqueous solution, wherein the granular compact comprises 75 to 92 wt.% of zeolite and 8 to 25 wt.% of potassium silicate based on the solid content.
Abstract translation: 目的：提供3A型颗粒沸石，通过预处理省略简单的方法控制颗粒组合物的孔径，改善机械性能，排除副反应，获得优异的选择性吸湿能力，并提供了3A型颗粒沸石的制备方法。 构成：该制备方法包括将沸石与硅酸钠水溶液共混后的混合材料造粒的第一工序; 从造粒材料分选直径为1〜6mm的造粒材料的第二工序; 将分级处理后的造粒材料浸渍在钾盐水溶液中后，分离脱水后的颗粒状压块的第三工序，其中，制备方法包括将直径为1〜6mm的造粒材料再循环的工序， 第一种方法的第二种方法，其中第一种方法的沸石是新加入的沸石粉末的40-90％（重量）和通过第二种方法后再循环的10-60％（重量）的沸石颗粒材料的混合物，其中 硅酸钠水溶液的浓度为15〜38％，其中，第一工序是将75〜92重量％的沸石与8〜25重量％的硅酸钠水溶液混合后，使混合材料成粒， 盐水溶液是氯化钾水溶液，其中第三种方法的浸渍在温度下进行 ge为20〜40℃。 3A型颗粒沸石的特征在于其通过制备方法制备，包括在沸石与硅酸钠水溶液共混之后使混合材料成粒的第一工艺; 从造粒材料分选直径为1〜6mm的造粒材料的第二工序; 以及将分级处理后的造粒物浸渍在钾盐水溶液中后分离脱水的颗粒状压块的第三工序，其中，所述粒状体包含75〜92重量％的沸石和8〜25重量％的硅酸钾系 固体含量。
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