폴리머 결합된 비-할로겐 내화성 조성물
    75.
    发明授权
    폴리머 결합된 비-할로겐 내화성 조성물 失效
    聚合物非卤素耐火组合物

    公开(公告)号:KR100522924B1

    公开(公告)日:2005-10-19

    申请号:KR1019997010711

    申请日:1998-03-23

    CPC classification number: C08G69/42 D01F6/80

    Abstract: 적어도 하나의 디카르복실산, 적어도 하나의 디아민과 내화성 카르복시포스핀산 모노머의 축중합반응 생성물인 내화성 폴리아미드로, 상기 폴리아미드는 약 0.10~약 1.0중량%의 인을 포함한다. 본 발명의 폴리아미드는 섬유로 제조되어 내화성 물품 및 직물로 더 직조화될 수 있거나, 또는 직접 성형되거나 일정형태의 물품으로 사출될 수 있다.

    아크릴로니트릴의 정제 공정에 있어서, 응축된 급냉상부층의 재순환 방법
    78.
    发明公开
    아크릴로니트릴의 정제 공정에 있어서, 응축된 급냉상부층의 재순환 방법 无效
    在从QU ER THE THE AD AD AD AD AD ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED

    公开(公告)号:KR1020040065172A

    公开(公告)日:2004-07-21

    申请号:KR1020040002217

    申请日:2004-01-13

    CPC classification number: C07C253/34 C07C255/03 C07C255/08

    Abstract: PURPOSE: Provided is an improved process for processing the effluent from the reactor, wherein the overhead stream from the quencher is condensed and a portion of the condensate is recycled back to the quencher with the remainder of the condensate being processed in a distillation column, the overhead stream can be condensed by various procedures including a column with a pump-around loop and a partial condenser, and the temperature of the condensation process is determined by the relative economics of available streams for cooling. CONSTITUTION: In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system; and recycling the condensed liquid to the quench system prior to processing the liquid in a distillation column. In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system in an absorber column; and recycling a portion of the condensed liquid directly to the quench system. In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system in a partial condenser; and recycling a portion of the condensed liquid directly to the quench system.

    Abstract translation: 目的:提供一种处理来自反应器的流出物的改进方法,其中来自猝灭剂的塔顶物流被冷凝,并且一部分冷凝物循环回猝灭剂,其余的冷凝物在蒸馏塔中加工, 塔顶流可以通过包括具有泵送回路和部分冷凝器的塔的各种方法冷凝,并且冷凝过程的温度由用于冷却的可用流的相对经济性来确定。 构成:在纯化丙烯腈的方法中,其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液接触,其改进包括从骤冷系统的塔顶流中冷凝液体的步骤; 以及在将蒸馏塔中的液体处理之前将冷凝的液体再循环到淬火系统中。 在纯化丙烯腈的方法中,其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液接触,其改进包括将来自骤冷系统的顶部物流的液体从吸收塔中冷凝的步骤; 并将一部分冷凝液体再循环到骤冷系统。 在纯化丙烯腈的方法中,其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液体接触,其改进包括将来自骤冷系统的顶部物流的液体在部分冷凝器中冷凝的步骤; 并将一部分冷凝液体再循环到骤冷系统。

    올레핀의 산화 및 가암모니아 산화용 촉매의 제조 방법
    79.
    发明公开
    올레핀의 산화 및 가암모니아 산화용 촉매의 제조 방법 有权
    用于催化氧化活性氧化态催化氧化氧化催化剂的制备方法,其制备的催化剂和氧化方法以及用于制备硝酸盐的氧化方法

    公开(公告)号:KR1020040047574A

    公开(公告)日:2004-06-05

    申请号:KR1020030076249

    申请日:2003-10-30

    Abstract: PURPOSE: To provide a catalyst useful for the production of acrylonitrile from propylene, ammonia, and an oxygen-containing gas by using a method for preparing an antimonate-based mixed metal oxide catalyst. CONSTITUTION: The process for preparing an antimonate-based mixed metal oxide catalyst in a catalytically active oxidized state comprises steps of (a) contacting an aqueous Sb2O3 slurry with HNO3 and at least one Me compound, and, optionally, at least one compound selected from X, Q, or R compounds to form a first mixture; (b) heating and drying the first mixture to form a solid product; and (c) calcining the solid product, where the catalyst is represented by the following empirical formula: MeaSbbXcQdReOf, wherein Me is at least one element selected from the group consisting of Fe, Co, Ni, Sn, U, Cr, Cu, Mn, Ti, Th, Ce, Pr, Sm, and Nd; X is at least one element selected from the group consisting of V, Mo, and W; Q is at least one element selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Zr, Hf, Nb, Ta, Re, Ru, Os, Rh, Ir, Pd, Pt, Ag, Au, Zn, Cd, Hg, Al, Ga, In, Tl, Ge, Pb, As, and Se; R is at least one element selected from the group consisting of Bi, B, P, and Te; and a, b, c, d, e, and f respectively denote atomic ratios and are as follows: a is 0.1 to 15, b is 1 to 100, c is 0 to 20, d is 0 to 20, e is 0 to 10, and f is a number taken to satisfy the valence requirements of the metals present in the catalyst in the oxidation state.

    Abstract translation: 目的:通过使用制备锑酸盐系混合金属氧化物催化剂的方法,提供可用于从丙烯,氨和含氧气体制造丙烯腈的催化剂。 构成:用于制备催化活性氧化态的锑酸盐类混合金属氧化物催化剂的方法包括以下步骤:(a)使Sb2O3水溶液与HNO 3和至少一种Me化合物和任选的至少一种选自 X,Q或R化合物以形成第一混合物; (b)加热和干燥第一混合物以形成固体产物; 和(c)煅烧固体产物,其中催化剂由以下经验式表示:MeaSbbXcQdReOf,其中Me是选自Fe,Co,Ni,Sn,U,Cr,Cu,Mn中的至少一种元素 ,Ti,Th,Ce,Pr,Sm和Nd; X是选自V,Mo和W中的至少一种元素; Q是选自Li,Na,K,Rb,Cs,Be,Mg,Ca,Sr,Ba,Sc,Y,La,Zr,Hf,Nb,Ta,Re,Ru中的至少一种元素, Os,Rh,Ir,Pd,Pt,Ag,Au,Zn,Cd,Hg,Al,Ga,In,Tl,Ge,Pb,As和Se; R是选自Bi,B,P和Te中的至少一种元素; a,b,c,d,e,f分别表示原子比,a为0.1〜15,b为1〜100,c为0〜20,d为0〜20,e为0〜 10,f为满足在氧化态的催化剂中存在的金属的化合价要求的数字。

Patent Agency Ranking