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公开(公告)号：KR1020050055445A
公开(公告)日：2005-06-13
申请号：KR1020030088657
申请日：2003-12-08
Applicant: 한국화학연구원
IPC: C07D319/12
Abstract: 본 발명은 파라-디옥사논(p-dioxanone)을 정제하는 방법에 관한 것으로, (1) 파라-디옥사논을 냉각시켜 파라-디옥사논을 결정화시키는 단계; (2) 결정화된 파라-디옥사논을 파쇄하고 여과시키는 단계; (3) 여과된 파라-디옥사논 입자를 고진공하에서 파라-디옥사논의 녹는점 이하의 온도에서 건조시키는 단계; 및 (4) 건조된 파라-디옥사논을 열-용융시킨 후 감압하에서 증류하는 단계를 포함하는, 본 발명의 파라-디옥사논의 정제방법에 따르면 99.9% 이상의 고순도 파라-디옥사논을 높은 수율로 간단하게 수득할 수 있다.
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公开(公告)号：KR1020040079236A
公开(公告)日：2004-09-14
申请号：KR1020030014263
申请日：2003-03-07
Applicant: 한국화학연구원 , 에이케이홀딩스 주식회사
IPC: C07C29/149
CPC classification number: Y02P20/584
Abstract: PURPOSE: A method for preparing 1,4-butanediol from an maleic acid ester is provided to produce 1,4-butanediol stably with high selectivity, high yield and high productivity without the treatment for reactivating a catalyst. CONSTITUTION: The method comprises the step of hydrogenating an maleic acid ester in the presence of a catalyst represented by CuO(a)MnO2(b)M(c)SiO2(d), wherein a, b, c and d are a percentage based on weight, a is 40-90, b is 0.15-5, c is 0.001-5 and d is 5-50; and M is at least one oxide of metal selected from the group consisting of Zn, Pt, Pd, Re, Ru and Rh. Preferably the catalyst is used in the hydrogenation after activated by using hydrogen or a hydrogen-containing gas at a temperature of 100-250 deg.C for 1-60 hours. Preferably the hydrogenation is carried out at a temperature of 140-260 deg.C and a pressure of 30-120 atm with a weight hourly space velocity of a maleic acid ester of 0.1-2.0/hr. Preferably the maleic acid ester is selected from dimethyl malate, diethyl malate, dipropyl malate, diisopropyl malate and dibutyl malate.
Abstract translation: 目的：提供从马来酸酯制备1,4-丁二醇的方法，以高选择性，高产率和高生产率稳定地生产1,4-丁二醇，而不用催化剂再活化。 构成：该方法包括在由CuO（a）MnO 2（b）M（c）SiO 2（d）表示的催化剂存在下氢化马来酸酯的步骤，其中a，b，c和d是基于 重量，a为40-90，b为0.15-5，c为0.001-5，d为5-50; M是选自Zn，Pt，Pd，Re，Ru和Rh中的至少一种金属氧化物。 优选地，在100-250℃的温度下使用氢气或含氢气体活化1〜60小时后，催化剂用于氢化。 优选氢化在140-260℃的温度和30-120大气压的压力下进行，马来酸酯的重时空速为0.1-2.0 /小时。 优选马来酸酯选自苹果酸二甲酯，苹果酸二乙酯，苹果酸二丙酯，苹果酸二异丙酯和苹果酸二丁酯。
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53.发明公开
公开(公告)号：KR1020030012738A
公开(公告)日：2003-02-12
申请号：KR1020010047151
申请日：2001-08-04
Applicant: 한국화학연구원 , 에이케이홀딩스 주식회사
CPC classification number: B01J23/72 , B01J37/038 , B01J37/06 , B01J37/08 , C07C29/149 , C07C45/002
Abstract: PURPOSE: A preparation method of silica stabilized copper catalyst used in hydrogenating or dehydrogenating organic compounds is provided, and the catalyst prepared by the method is provided. CONSTITUTION: The preparation method of Cu/SiO2 catalyst comprises the steps of (a) preparing a slurry solution of copper hydroxide by adding a precipitant solution to an aqueous copper salt solution; (b) preparing a copper hydroxide-silica slurry solution by stirring the mixed solution after adding a colloidal silica solution to the slurry solution; (c) separating sediments from the solution and cleaning the sediment after aging the copper hydroxide-silica slurry solution at a temperature of 50 to 100 deg.C; and (d) drying and baking the cleaned sediment, wherein the precipitant is carbonate or hydroxide of alkaline metal, a weight ratio of copper oxide (CuO) to silica (SiO2) of catalyst is 9:1 to 3:7, the colloidal silica is stabilized by ammonium (NH4¬+), Na¬+ or other alkali metal, has a particle size of 4 to 60 nm, surface area of 100 to 300 m¬2/g and concentration of 5 to 60 wt.% on the basis of silica, and the aging is performed at a temperature of 60 to 90 deg.C for 0.5 to 24 hours.
Abstract translation: 目的：提供用于氢化或脱氢有机化合物的二氧化硅稳定的铜催化剂的制备方法，并提供通过该方法制备的催化剂。 构成：Cu / SiO2催化剂的制备方法包括以下步骤：（a）通过向铜盐水溶液中加入沉淀剂溶液制备氢氧化铜浆液; （b）通过在将浆料溶液中加入胶体二氧化硅溶液之后搅拌混合溶液制备氢氧化铜 - 二氧化硅浆料溶液; （c）在50至100℃的温度下，将氢氧化硅 - 二氧化硅浆料溶液老化后，从溶液中分离出沉淀物并清洗沉淀物; 和（d）干燥和烘烤清洁的沉淀物，其中沉淀剂是碱金属的碳酸盐或氢氧化物，催化剂的氧化铜（CuO）与二氧化硅（SiO 2）的重量比为9:1至3:7，胶体二氧化硅 由铵（NH 4 +），Na +或其它碱金属稳定，粒径为4〜60nm，表面积为100〜300m2 / g，浓度为5〜60wt。％ 二氧化硅的基础，老化在60〜90℃的温度下进行0.5〜24小时。
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公开(公告)号：KR1020020042397A
公开(公告)日：2002-06-05
申请号：KR1020010033142
申请日：2001-06-13
IPC: C07C29/151
Abstract: PURPOSE: Provided is a process for producing 1,3-alkanediol from a 3-hydroxy ester compound by using a hydrogenation catalyst having high activity and high selectivity. CONSTITUTION: The 1,3-alkanediol is produced by hydrogenating the 3-hydroxy ester compound such as 3-hydroxy methyl propanoate in the presence of the catalyst in a mixed solvent comprising an alcohol solvent and a solvent having a higher boiling point than the 1,3-alkanediol by a liquid-gas phase method, wherein the catalyst is produced by adding an alkali precipitant, such as an alkali carbonate or sodium hydroxide, to a water solution of copper salts to produce particles and then aging by adding colloidal silica. The catalyst has a weight ratio of copper oxide(CuO) and silica(SiO2) being 9:1-5:5.
Abstract translation: 目的：提供使用具有高活性和高选择性的氢化催化剂由3-羟基酯化合物生产1,3-链烷二醇的方法。 构成：通过在催化剂存在下，在含有醇溶剂和沸点比1的沸点高的溶剂的混合溶剂中，将3-羟基酯化合物如3-羟基甲基丙酸酯氢化，生成1,3-链烷二醇 的3-链烷二醇，其中通过将碱如碳酸盐或氢氧化钠等碱性沉淀剂加入到铜盐水溶液中而制备催化剂，从而制备颗粒，然后通过加入胶体二氧化硅来老化。 催化剂的氧化铜（CuO）和二氧化硅（SiO 2）的重量比为9：1-5：5。
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公开(公告)号：KR1019960037625A
公开(公告)日：1996-11-19
申请号：KR1019950009575
申请日：1995-04-24
Applicant: 한국화학연구원
Abstract: 본 발명은 사이클로헥센과 아세트산을 반응시켜 사이클로헥실아세테이트를 제조하는 방법에 있어서, 하기 일반식(Ⅰ)의 헤테로폴리산 금속이온 염을 고체산 촉매로 사용하여 사이클로헥실아세테이트의 생산성을 향상시키는 방법에 관한 것으로, 상기 산촉매는 대상 반응계에서 활성이 장기간 유지되며, 반응물에 대한 용해도가 낮고, 활성이 감소하였을 때 쉽게 재생시킬 수 있다.
A
x H
nx SM
12 O
4 0bH
2 O (Ⅰ)
상기 식에서, A는 K 또는 Cs이고, x는 0.1 내지 3 또는 4이고, n은 3 또는 4이고, S는 P 또는 Si이고, M은 Mo 또는 W, 또는 이들의 조합이며, b는 0 내지 20이다.-
Patent Agency Ranking
公开(公告)号：KR1019960000298A
公开(公告)日：1996-01-25
申请号：KR1019940013861
申请日：1994-06-17
Applicant: 한국화학연구원
IPC: B01J20/06
Abstract: 본 발명은 수용성 킬레이트 포스핀 리간드 삼메타술폰화페닐포스핀(TPPTS)음이온을 음이온 교환능이 있는 하이드로탈사이트(HT)형태의 층상 화합물 층간에 정량적으로 고정시킨 물질(TPPTS-HT)인 새로운 무기 고체흡착물질과 이를 제조하는 방법, 이 흡착물질을 사용하여 물 또는 유기용매에 녹아있는 백금족 원소 이온을 흡착분리하는 방법, 사용된 흡착물질을 재사용하는 방법에 관한 것이다.
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57.发明公开수용성포스핀금속착화합물이고정화된하디드로탈사이트형태의촉매를이용한올레핀의하이드로포밀화반응을통하여탄소수가1개또는2개늘어난알데히도로전환시키는(제조)방법과그사용된촉매의분리회수(방법)및재사용방법 失效水溶性膦（制造）方法和用过的催化剂的碳原子的数目的分离是通过在烯烃与催化剂的加氢甲酰化反应的形式，该水滑石转换成一个或两个延伸的醛里多作为HADID金属配合物被固定 （方法）和重用方法
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公开(公告)号：KR1019930007733B1
公开(公告)日：1993-08-18
申请号：KR1019910007016
申请日：1991-05-01
Applicant: 한국화학연구원
Abstract: A method for separating and purifying methacrylic acid in an aq. soln. of methacrylic acid comprises selectively-extracting the methacrylic acid with a mixt. solvent of at least one selected from C6-14 aliphatic, alicyclic or aromatic hydrocarbon, C4-7 ketone or ester, and at least one selected from phosphoric acid ester or phthalic acid ester. The C6-14 aliphatic hydrocarbon is hexane, heptane, octane, nonane, decane, undecane or dodecane; the alicyclic hydrocarbon is cyclohexane, methylcyclohexane, cycloheptane, ethylcyclohexane, isopropyl cyclohexane or decarine; the aromatic hydrocarbon is benzene, toluene, xylene, ethylbenzene or tetralin.
Abstract translation: 一种分离和纯化甲基丙烯酸的方法 SOLN。 的甲基丙烯酸包括用混合物选择性提取甲基丙烯酸。 选自C 6-14脂族，脂环族或芳族烃，C 4-7酮或酯中的至少一种溶剂和选自磷酸酯或邻苯二甲酸酯中的至少一种的溶剂。 C6-14脂族烃是己烷，庚烷，辛烷，壬烷，癸烷，十一烷或十二烷; 脂环族烃是环己烷，甲基环己烷，环庚烷，乙基环己烷，异丙基环己烷或癸酸; 芳烃为苯，甲苯，二甲苯，乙苯或四氢化萘。
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