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公开(公告)号：KR100549288B1
公开(公告)日：2006-02-03
申请号：KR1020030042725
申请日：2003-06-27
Applicant: 한국화학연구원
IPC: B01J21/06
Abstract: 본 발명은 고정화 광촉매의 제조방법에 관한 것으로서, 보다 상세하게는 티타늄알콕사이드와 폴리카보실란 혼합액을 다공성 담체에 코팅시킨 후 온도, 수분 등의 외부환경 조건을 조절하면서 정치시켜 코팅층 내부로부터 이산화티타늄 결정체가 형성되도록 한 다음 소성시켜서 상기 이산화티타늄 결정체가 주로 아파타이트 타입으로 구성되도록 함과 동시에 담체와 강고하게 결합시키는 고정화 광촉매 제조방법에 관한 것이다.
본 발명에 따른 제조방법에서는 특히 상기 이산화티타늄 결정체가 코팅층의 내부에서부터 외부로 성장되도록 조절되었기 때문에, 담체 표면과 이산화티타늄의 결합면에 응력이 축적되지 않아서 담체와 이산화티타늄 결정체의 결합을 보다 강고하게 할 수 있어서 수중 및 공기중의 난분해성 유기물과 악취를 반복적으로 제거할 수 있는 효과가 있다.
티타늄알콕사이드, 폴리카보실란, 이산화티타늄, 광촉매-
公开(公告)号：KR1020050001154A
公开(公告)日：2005-01-06
申请号：KR1020030042725
申请日：2003-06-27
Applicant: 한국화학연구원
IPC: B01J21/06
CPC classification number: B01J37/0219 , B01J21/063 , B01J35/004 , B01J37/08
Abstract: PURPOSE: To provide a method for manufacturing immobilized photocatalyst, the method for further improvement of the bonding strength between support and titanium dioxide crystal by controlling conditions of temperature and moisture content during formation of titanium dioxide crystal. CONSTITUTION: The manufacturing method of immobilized photocatalyst comprises: a process of coating a mixed solution of titanium alkoxide and polycarbosilane on a porous carrier; a process of maintaining the coated carrier at a temperature of 50 to 130 deg.C to form a titanium dioxide crystal; and a process of firing the carrier where the titanium dioxide crystal is formed in a temperature range of 400 to 1,000 deg.C, wherein the titanium alkoxide is selected from titanium isopropoxide, titanium methoxide, titanium butoxide, titanium ethoxide and titanium ethylhexoxide, wherein the polycarbosilane contains an alkyl group in a molecular weight range of 1,000 to 10,000, wherein the mixed solution is a mixed solution of 100 weight parts of titanium alkoxide and 10 to 200 weight parts of polycarbosilane, wherein the titanium dioxide crystal is formed from the inside of a coating layer, and wherein steam is supplied to the outer surface of the coating layer while the titanium dioxide crystal is produced.
Abstract translation: 目的：提供一种制备固定化光催化剂的方法，通过控制二氧化钛晶体形成过程中温度和含水量的条件，进一步提高载体和二氧化钛晶体之间的结合强度。 构成：固定化光催化剂的制造方法包括：在多孔载体上涂覆烷氧化钛和聚碳硅烷的混合溶液的方法; 将涂布载体保持在50〜130℃的温度以形成二氧化钛晶体的工序; 以及在400〜1000℃的温度范围内烧成形成二氧化钛晶体的载体的方法，其中所述钛醇盐选自异丙醇钛，甲醇钛，丁醇钛，乙醇钛和乙基己酸乙酯，其中， 聚碳硅烷含有分子量为1,000〜10,000的烷基，其中，混合溶液为100重量份的烷氧基钛和10〜200重量份的聚碳硅烷的混合溶液，其中二氧化钛晶体由 涂层，并且其中在制备二氧化钛晶体的同时将蒸汽供应到涂层的外表面。
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公开(公告)号：KR1020020034745A
公开(公告)日：2002-05-09
申请号：KR1020000065245
申请日：2000-11-03
Applicant: 한국화학연구원
IPC: B01J13/04
CPC classification number: H05B6/806 , B01J19/126 , B01J20/0292 , B01J20/18 , B01J2219/00033 , B01J2219/089 , B01J2219/1227 , C01B39/16 , C01B39/24 , C01B39/38 , C01B39/40 , C01B39/46 , C01B39/54
Abstract: PURPOSE: Provided are the preparation method and the equipments of inorganic materials such as porous molecules, layered structure compounds and ceramic devices using continuous microwave synthesis which reduces the synthesis and crystallization time. Mass production is possible by the method because it is a continuous process and the use of organic template material is not needed when the porous molecular sieve are made. CONSTITUTION: The method includes the steps of preparing the precursor solution of the inorganic materials such as porous molecules with micropore, two-dimensional layered structure compounds and the ceramic materials; introducing the above solution into a tube type reactor continuously; and irradiating microwave with 60-1200 watt at the atmospheric pressure of 1 to 400 psi. The above porous molecules are selected from zeolite with pore size of 3-8Å, zeolite substituted by transition metals and mesoporous materials with a pore size of 20-150Å chosen from aluminosilicate, aluminophosphate and silicoaluminophosphate and 0-20wt.% of the above porous molecules with the size of 50-500 nm nuclear seed are included in the synthetic solution. The above two-dimensional layered structure compounds are selected from hydrotalcite type layered double hydrates and the mixed oxides derived from them. The above ceramic materials are chosen from metal ferrite compounds containing Zn, Ni, Mn and Co, spinel oxides. The equipment includes input tank of synthesis solution, tube type reactor, cylindrical reactor and the microwave reactor(30) equipped with microwave irradiation device(33).
Abstract translation: 目的：提供使用连续微波合成的多孔分子，层状结构化合物和陶瓷器件等无机材料的制备方法和设备，减少了合成和结晶时间。 通过该方法可以进行批量生产，因为它是连续的方法，并且当制备多孔分子筛时不需要使用有机模板材料。 构成：该方法包括以下步骤：制备无机材料的前体溶液，例如具有微孔的多孔分子，二维层状结构化合物和陶瓷材料; 将上述溶液连续引入管式反应器; 并在1至400psi的大气压下照射60-1200瓦的微波。 上述多孔分子选自孔径为3-8的沸石，由过渡金属取代的沸石和孔径为20-150的介孔材料，选自铝硅酸盐，磷酸铝和硅铝磷酸盐和0-20重量％的上述多孔分子 其中大约50-500纳米核子种子被包括在合成溶液中。 上述二维层状结构化合物选自水滑石型层状双水合物和由它们衍生的混合氧化物。 上述陶瓷材料选自含有Zn，Ni，Mn和Co的尖晶石氧化物的金属铁氧体化合物。 该设备包括合成溶液输入罐，管式反应器，圆柱形反应器和装有微波辐射装置（33）的微波反应器（30）。
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Patent Agency Ranking
公开(公告)号：KR100411194B1
公开(公告)日：2003-12-18
申请号：KR1020000065245
申请日：2000-11-03
Applicant: 한국화학연구원
IPC: B01J13/04
CPC classification number: H05B6/806 , B01J19/126 , B01J20/0292 , B01J20/18 , B01J2219/00033 , B01J2219/089 , B01J2219/1227 , C01B39/16 , C01B39/24 , C01B39/38 , C01B39/40 , C01B39/46 , C01B39/54
Abstract: 본 발명은 연속식 마이크로파 합성법을 이용한 무기소재의 제조방법 및 그 장치에 관한 것으로서, 더욱 상세하게는 다공성분자체, 층상구조화합물, 세라믹소재 등 각종 무기소재의 합성 전구용액을 만든 후 슬러리 펌프를 통해 튜브형 마이크로파 반응기에 연속적으로 주입하여 합성 및 결정화시킴으로써, 종래 결정화에 장시간이 소요되었던 회분식 수열 합성법과 달리 소요시간이 수분 내지 수십분 이내로 단축되고, 기존의 회분식 수열 또는 마이크로파 합성법에 비해 제조 및 수거 공정이 연속적이므로 비교적 작은 설비로도 대량 생산에 용이할 뿐만 아니라 다공성분자체 합성시 유기 주형물질의 사용을 절감할 수 있는 무기소재의 제조방법 및 그 장치에 관한 것이다.
Abstract translation: 本发明涉及一种无机材料的连续微波合成方法及其装置，更具体地说，涉及合成无机材料的方法，其制备方法是在制备用于各种无机材料的前体材料的混合溶液如多孔分子筛， 使用浆料泵将该混合溶液连续添加到管式微波反应器中以合成和结晶无机材料。 因此，本发明的制造方法具有以下优点：（1）与常规水热反应需要较长时间相比，反应时间进一步缩短数分钟至数十分钟，（2）连续制造和收集过程 与传统间歇水热合成法或微波合成法相比，本发明能够以相对较小的设备实现大规模生产无机材料，并且（3）在制造多孔分子筛期间可以需要较少量的有机模板剂。
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公开(公告)号：KR1020020041604A
公开(公告)日：2002-06-03
申请号：KR1020000071268
申请日：2000-11-28
Applicant: 한국화학연구원
CPC classification number: B01J35/004 , B01D53/8609 , B01D53/8625 , B01D2255/802 , B01J21/063 , B01J29/06 , B01J29/40 , B01J35/002 , B01J37/0209
Abstract: PURPOSE: Provided is a titania photocatalyst which has smaller particle diameter than the conventional titania powder and enhanced photo-activity. The photocatalyst is homogeneously dispersed in the zeolite carrier and does not coagulate so that quantum efficiency of the titania powder in the UV region is maximized, making rapid and effective elimination of various harmful gases such as ammonia in the air and sulfur compounds together with organic compounds in the water by the photocatalytic oxidation. CONSTITUTION: The photocatalyst preparation comprises: the first process wherein titanium tetraisopropoxide is dissolved completely in isopropyl alcohol and adding and dissolving each 0.5-2moles of citric acid and 0.5-10 moles of ethylene glycol to 1 mole of titanium tetraisopropoxide ; the second process of adding and mixing with the above mixed solution, zeolite selected from H-type ZSM-5, USY, BEA, KL zeolite containing 20-200moles of silica; and the third process wherein the above titania/zeolite mixture is distilled at 80-100°C under pressure, irradiated with microwave and calcined. The above titania powder carried on the zeolite has the particle diameter of 5-2 nm and its quantum efficiency is 50-80% per unit photocatalyst while its UV-DRS spectrum is in the region of 370-310 nm.
Abstract translation: 目的：提供一种二氧化钛光催化剂，其具有比常规二氧化钛粉末更小的粒径和增强的光活性。 光催化剂均匀分散在沸石载体中，不会凝结，使得紫外线区域的二氧化钛粉末的量子效率最大化，从而快速，有效地消除空气中的氨和硫化合物以及有机化合物等各种有害气体 在水中通过光催化氧化。 构成：光催化剂制备方法包括：将四异丙醇钛完全溶解在异丙醇中并将每种0.5-2摩尔柠檬酸和0.5-10摩尔乙二醇加入并溶解于1摩尔四异丙醇钛的第一种方法; 选自H型ZSM-5，USY，BEA，KL沸石中含有20-200摩尔二氧化硅的沸石的上述混合溶液的第二种方法。 和第三种方法，其中将上述二氧化钛/沸石混合物在80-100℃压力下蒸馏，用微波照射并煅烧。 在沸石上承载的上述二氧化钛粉末的粒径为5-2nm，其量子效率为每单位光催化剂为50-80％，而其UV-DRS光谱在370-310nm的范围内。
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公开(公告)号：KR100411177B1
公开(公告)日：2003-12-18
申请号：KR1020010023814
申请日：2001-05-02
Applicant: 한국화학연구원
IPC: B01J29/14
Abstract: PURPOSE: An oxidation catalyst with high selectivity and conversion capability, and a method for producing hydrocarbon compounds using the same are provided. CONSTITUTION: The oxidation catalyst is characterized in that it consists of porous molecular sieve containing 0.5 to 10 wt.% of Pb, wherein the porous molecular sieve is selected from X, Y, USY, MOR, β, L, ZSM-5 zeolite, MCM-41 and MCM-48. The method for producing hydrocarbon compounds using the oxidation catalyst is characterized in that it is conducted at temperature of -10 to 80 deg.C in the presence of above oxidation catalyst while reacting with hydrogen peroxide as oxidizing agent.
Abstract translation: 目的：提供具有高选择性和转化能力的氧化催化剂，以及使用其的烃化合物的生产方法。 构成：氧化催化剂的特征在于它由含有0.5-10重量％Pb的多孔分子筛组成，其中多孔分子筛选自X，Y，USY，MOR，β，L，ZSM- 5沸石，MCM-41和MCM-48。 使用该氧化催化剂制造烃化合物的方法的特征在于，在上述氧化催化剂的存在下，在-10〜80℃的温度下进行，同时与作为氧化剂的过氧化氢反应。
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公开(公告)号：KR100385301B1
公开(公告)日：2003-05-23
申请号：KR1020000071268
申请日：2000-11-28
Applicant: 한국화학연구원
CPC classification number: B01J35/004 , B01D53/8609 , B01D53/8625 , B01D2255/802 , B01J21/063 , B01J29/06 , B01J29/40 , B01J35/002 , B01J37/0209
Abstract: The present invention relates to a novel titania photocatalyst and its manufacturing method. More specifically, the present invention is to provide the quantum-sized novel titania photocatalyst prepared the steps comprising: (a) titanium tetraisopropoxide is encapsulated in zeolite support by adding citric acid to isopropyl alcohol; (b) ethylene glycol is dissolved herein to obtain a uniformly dispersed mixture solution; and (c) it is encapsulated in zeolite cavities. And thus, titania photocatalyst of the present invention has some advantages in that (a) it provides greatly increased surface area and photocatalytic activity due to the smaller granule than the commercial titania powder; (b) it is uniformly dispersed to quantum size zeolite cavities rather than forming large clusters caused by the aggregation of the conventional titania hyperfine powder; and (c) since the quantum efficiency of titania powder in the UV region is maximized thereby, it effectively and promptly removes the hazardous gas like ammonia and sulfide in the atmosphere and organic material in water waste through photo-oxidation reaction.
Abstract translation: 本发明涉及新型二氧化钛光催化剂及其制造方法。 更具体地说，本发明提供一种量子尺寸新型二氧化钛光催化剂，其制备步骤包括：（a）将四异丙氧基钛通过向异丙醇中加入柠檬酸而包封在沸石载体中; （b）在此溶解乙二醇以获得均匀分散的混合物溶液; 和（c）它被包封在沸石腔中。 因此，本发明的二氧化钛光催化剂具有以下一些优点：（a）由于较小的颗粒比商业二氧化钛粉末提供大大增加的表面积和光催化活性; （b）由于常规二氧化钛超细粉末的聚集而使其均匀分散到量子尺寸的沸石空腔而不是形成大簇; （c）由于紫外区域的二氧化钛粉末的量子效率最大化，因此通过光氧化反应有效地迅速地除去大气中的氨和硫化物等有害气体和废水中的有机物质。
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公开(公告)号：KR1020020084500A
公开(公告)日：2002-11-09
申请号：KR1020010023814
申请日：2001-05-02
Applicant: 한국화학연구원
IPC: B01J29/14
CPC classification number: B01J29/7057 , B01J29/405 , B01J29/605 , C07C37/60
Abstract: PURPOSE: An oxidation catalyst with high selectivity and conversion capability, and a method for producing hydrocarbon compounds using the same are provided. CONSTITUTION: The oxidation catalyst is characterized in that it consists of porous molecular sieve containing 0.5 to 10 wt.% of Pb, wherein the porous molecular sieve is selected from X, Y, USY, MOR, β, L, ZSM-5 zeolite, MCM-41 and MCM-48. The method for producing hydrocarbon compounds using the oxidation catalyst is characterized in that it is conducted at temperature of -10 to 80 deg.C in the presence of above oxidation catalyst while reacting with hydrogen peroxide as oxidizing agent.
Abstract translation: 目的：提供具有高选择性和转化能力的氧化催化剂，以及使用其制备烃化合物的方法。 构成：氧化催化剂的特征在于，其含有0.5〜10重量％的Pb的多孔分子筛，其中多孔分子筛选自X，Y，USY，MOR，β，L，ZSM-5沸石， MCM-41和MCM-48。 使用氧化催化剂制造烃化合物的方法的特征在于，在上述氧化催化剂的存在下，在与过氧化氢作为氧化剂反应的同时，在-10〜80℃的温度下进行。
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