반응증류탑 충진용 펠릿형 칼륨담지 마그네시아 촉매의제조방법
    102.
    发明公开
    반응증류탑 충진용 펠릿형 칼륨담지 마그네시아 촉매의제조방법 失效
    用于制备用于反应蒸馏塔的K / MGO颗粒催化剂的方法

    公开(公告)号:KR1020050046336A

    公开(公告)日:2005-05-18

    申请号:KR1020030080582

    申请日:2003-11-14

    CPC classification number: B01J37/0009 B01J23/04 B01J37/08

    Abstract: 본 발명은 에틸렌카보네이트와 메탄올의 에스테르 교환반응과 생성된 디메틸카보네이트의 증류가 동시에 이루어지는 반응증류탑 충진용 펠릿형 K/MgO 촉매의 제조방법에 관한 것으로서, 더욱 상세하게는 촉매 지지체로서 마그네시아(MgO)를 펠릿상으로 성형하여 소성하는 방법과 성형된 MgO 펠릿의 표면 및 기공에 칼륨(K) 성분을 담지하여 소성하는 방법을 특이성 있게 수행하여 제조됨으로써 반응증류탑 내의 고정층 충진물겸 촉매로서 우수한 성능을 보이는 펠릿형 K/MgO 불균일촉매의 제조방법에 관한 것이다.

    저온용 냉매 조성물
    104.
    发明公开
    저온용 냉매 조성물 无效
    冷却低温液体组合物,不含氟氯化碳和氟氯烃,可替代R-502破坏臭氧层

    公开(公告)号:KR1020040082067A

    公开(公告)日:2004-09-24

    申请号:KR1020030016683

    申请日:2003-03-18

    CPC classification number: C09K5/045 C09K2205/122 C09K2205/22 C09K2205/47

    Abstract: PURPOSE: A cooling fluid composition for low temperature is provided, to obtain a novel cooling fluid composition which contains no CFC and HCFC and can replace R-502 destroying the ozone layer. CONSTITUTION: The cooling fluid composition comprises 10-60 wt% of difluoromethane (CH2F2, HFC-32); 5-75 wt% of pentafluoroethane (CHF2CF3, HFC-125); and 15-35 wt% of 1,1,2,2-tetrafluoroethane (CHF2CHF2, HFC-134). Also the cooling fluid composition comprises 10-70 wt% of difluoromethane (CH2F2, HFC-32); 10-82 wt% of pentafluoroethane (CHF2CF3, HFC-125); and 8-20 wt% of 1,1-difluoroethane (CH3CHF2, HFC-152a).

    Abstract translation: 目的:提供一种用于低温的冷却液组合物,以获得不含CFC和HCFC的新型冷却液组合物,可代替破坏臭氧层的R-502。 构成:冷却液组合物包含10-60重量%的二氟甲烷(CH 2 F 2,HFC-32); 5-75重量%的五氟乙烷(CHF 2 CF 3,HFC-125); 和15-35重量%的1,1,2,2-四氟乙烷(CHF 2 CHF 2,HFC-134)。 冷却流体组合物还包含10-70重量%的二氟甲烷(CH 2 F 2,HFC-32); 10-82重量%的五氟乙烷(CHF 2 CF 3,HFC-125); 和8-20重量%的1,1-二氟乙烷(CH 3 CHF 2,HFC-152a)。

    연료전지 자동차용 가솔린 개질촉매 및 이의 제조방법
    105.
    发明授权
    연료전지 자동차용 가솔린 개질촉매 및 이의 제조방법 失效
    연료전지자동차용가솔린개질촉매및이의제조방

    公开(公告)号:KR100448683B1

    公开(公告)日:2004-09-16

    申请号:KR1020020021236

    申请日:2002-04-18

    Abstract: PURPOSE: A gasoline reforming catalyst for fuel cell automobiles is provided, which has high catalyst activity, high hydrogen selectivity and low CO selectivity and has improved durability against carbon deposition or sulfur poisoning, and a preparation method of the same is provided. CONSTITUTION: The gasoline reforming catalyst for fuel cell automobiles is characterized in that the catalyst is manufactured by supporting 5 to 15 wt.% of Mg as a base catalyst constituent and two or more transition metals selected from transition metal group consisting of 2 to 15 wt.% of Ni, 0.1 to 15 wt.% of Co, 2 to 15 wt.% of Fe, 2 to 15 wt.% of Mo, 0.1 to 1.0 wt.% of Cr, 0 to 0.005 wt.% of Ti and 0 to 0.005 wt.% of Zr as active catalyst constituents onto a porous support of γ-alumina or silica-alumina(Si-Al), wherein content of the porous support is 21 to 42 wt.% based on the metal weight.

    Abstract translation: 目的:提供一种燃料电池汽车用汽油重整催化剂,其催化剂活性高,氢选择性高,CO选择性低,对碳沉积或硫中毒的耐久性提高,并提供了其制备方法。 构成:燃料电池汽车用汽油重整用催化剂的特征在于,催化剂通过负载5〜15重量%的作为碱催化剂成分的Mg和2〜15重量%的选自过渡金属的过渡金属 ,Ni:0.1〜15重量%,Fe:2〜15重量%,Mo:2〜15重量%,Cr:0.1〜1.0重量%,Ti:0〜0.005重量% 0至0.005重量%的作为活性催化剂组分的Zr加入到γ-氧化铝或二氧化硅 - 氧化铝(Si-Al)的多孔载体上,其中多孔载体的含量基于金属为21至42重量% 重量。

    1,1-디플루오로에탄 제조용 촉매 및 1,1-디플루오로에탄제조방법
    106.
    发明授权
    1,1-디플루오로에탄 제조용 촉매 및 1,1-디플루오로에탄제조방법 失效
    1,1-디플루오로에탄제조촉매및및1,1-디플루오로에탄제조방1,1

    公开(公告)号:KR100383216B1

    公开(公告)日:2003-05-12

    申请号:KR1020000074615

    申请日:2000-12-08

    CPC classification number: B01J37/22 B01J21/18 B01J23/44 C07C17/23 C07C19/08

    Abstract: The present invention relates to a catalyst for producing 1,1-difluoroethane (HCFC-152a) and producing method thereof. More particularly, it is to provide the catalyst prepared by impregnating palladium on the active carbon pretreated with an aqueous hydrogen fluoride solution and an aqueous hydrogen chloride solution in series and its use in the production of 1,1-difluoroethane (HCFC-142b) by dehydrochlorinating 1,1-difluoro-1-chloroethane at 240-300° C. in the supplying molar ratio of 2-6 (H2/HCFC-142b) with maximizing a selectivity toward the product of HCFC-152a.

    Abstract translation: 本发明涉及制造1,1-二氟乙烷(HCFC-152a)的催化剂及其制造方法。 更具体地说,是提供一种通过在用氟化氢水溶液和氯化氢水溶液预处理过的活性炭上串联浸渍钯制备的催化剂及其在制备1,1-二氟乙烷(HCFC-142b)中的用途, 在240-300℃下将1,1-二氟-1-氯乙烷脱氯化氢; C.供应摩尔比为2-6(H 2 / HCFC-142b),同时使对HCFC-152a产物的选择性最大化。

    헥사플루오로프로필렌(HFP)과옥타플루오로사이클로부탄(RC318)의 동시 제조방법
    107.
    发明公开

    公开(公告)号:KR1020020068205A

    公开(公告)日:2002-08-27

    申请号:KR1020010008495

    申请日:2001-02-20

    CPC classification number: C07C23/06 C07C17/269 C07C17/281 C07C21/185

    Abstract: PURPOSE: A method for preparing hexafluoropropylene and peroctafluorocyclobutane simultaneously and selectively is provided, by inhibiting the production of solid polymer and carbon and controlling the reaction temperature. CONSTITUTION: The method comprises the step of supplying tetrafluoroethylene prepared by the pyrolysis of difluorochloromethane and H2O in the molar ratio of 0.1-10 into a flow layer reactor equipped with a distributor for steam supply, to allow the dimerization of tetrafluoroethylene to be carried out. Tetrafluoroethylene is prepared at the difluorochloromethane pyrolysis device comprising a preheater(2), a super heating unit(4), a cooler and a tetrafluoroethylene distillation tower(12); is purified at the distillation tower after passing a HCl absorption tower(8), a NaOH column(9) and a dryer(10); and is supplied into the flow layer reactor from the center of the distillation tower. Preferably the reaction temperature of the dimerization of tetrafluoroethylene is 600-780 deg.C.

    Abstract translation: 目的:通过抑制固体聚合物和碳的产生并控制反应温度,提供同时和选择性制备六氟丙烯和全氟代氟环丁烷的方法。 方案:该方法包括将通过二氯氯甲烷和H 2 O的摩尔比为0.1-10的热解制备的四氟乙烯加入到装有用于蒸汽供应的分配器的流动层反应器中以允许进行四氟乙烯的二聚化的步骤。 在包括预热器(2),超加热单元(4),冷却器和四氟乙烯蒸馏塔(12)的二氟氯甲烷热解装置中制备四氟乙烯。 在通过HCl吸收塔(8),NaOH柱(9)和干燥器(10)之后在蒸馏塔处纯化; 并从蒸馏塔的中心供给流层反应器。 优选四氟乙烯的二聚反应温度为600-780℃。

    염화수소의 산화에 의한 염소 제조방법
    108.
    发明授权
    염화수소의 산화에 의한 염소 제조방법 失效
    氯化氢氧化生产氯气的方法

    公开(公告)号:KR1019960008616B1

    公开(公告)日:1996-06-28

    申请号:KR1019930018048

    申请日:1993-09-08

    Abstract: The catalyst for manufacturing chlorine is made by; (a) mixing the aqueous solution of CrO3 of 6 anions with ethanol; (b) heating and refluxing at above 90 deg.C; (c) calcinating at 400-500 deg.C for 3-10 hrs after seperating and drying the precipitate;(d) molding with 3-10 wt% stearic acid dissolved in chloroform added. Chlorine is prepared by reacting HCl and oxygen at the molar ratio of 4:1-4:4 at 350-375 deg.C under the catalyst Cr2O3.

    Abstract translation: 氯制造催化剂由 (a)将6种阴离子的CrO 3的水溶液与乙醇混合; (b)在90℃以上加热回流; (c)在分离和干燥沉淀物之后,在400-500℃下煅烧3-10小时;(d)用溶于氯仿中的3-10重量%的硬脂酸成型。 在催化剂Cr2O3的350-375℃下,以4:1-4:4的摩尔比使HCl和氧气反应制备氯。

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