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    • 21. 发明授权
    • Process for the manufacture of fluorinated olefins
    • 制造氟化烯烃的方法
    • US08513474B2
    • 2013-08-20
    • US12822365
    • 2010-06-24
    • Haiyou WangHsueh Sung Tung
    • Haiyou WangHsueh Sung Tung
    • C07C17/00C07C17/10
    • C07C17/04C07C17/354C07C17/357C07C21/18C07C19/08
    • Provided are methods for producing fluorinated organic compounds, which preferably comprises converting at least one compound of formula (I) CH2XCHZCF3 to at least one compound of formula (II) CHX═CZCF3 where X and Z are independently H or F, with the proviso that X and Z are not the same. The converting step comprises catalytically reacting at least one compound of formula (I), preferably via dehydrogenation or oxidative dehydrogenation. In another aspect, the inventive method of preparing fluorinated organic compounds comprises converting a reaction stream comprising at least one pentafluoropropene to a product stream comprising at least one pentafluoropropane and at least one compound of formula (I), separating out the compound of formula (I) from the product stream, and converting the compound of formula (I) separated from the product stream to at least one compound of formula (II), wherein the conversion the compound of formula (I) to 3,3,3-trifluoropropyne is substantially limited.
    • 提供了用于生产氟化有机化合物的方法,其优选包括将至少一种式(I)CH 2 XCHZCF 3化合物转化为至少一种式(II)的化合物,其中X和Z独立地为H或F,式(II)化合物为CHX = CZCF3,条件是 X和Z不一样。 转化步骤包括使至少一种式(I)化合物催化反应,优选通过脱氢或氧化脱氢。 在另一方面,制备含氟有机化合物的本发明方法包括将包含至少一种五氟丙烯的反应物流转化为包含至少一种五氟丙烷和至少一种式(I)化合物的产物流,将式(I)化合物 ),并将从产物流分离的式(I)化合物转化为至少一种式(II)化合物,其中式(I)化合物与3,3,3-三氟丙炔的转化率为 基本上有限。
    • 26. 发明授权
    • Method of preparing iodinated aromatic compounds
    • 制备碘化芳香族化合物的方法
    • US08309775B2
    • 2012-11-13
    • US12599400
    • 2008-12-17
    • Han-Seok KimJae-Bong LimIl-Hoon Cha
    • Han-Seok KimJae-Bong LimIl-Hoon Cha
    • C07C17/00
    • C07C17/12C07C17/383C07C17/392C07C25/02
    • The present invention relates to a method of preparing iodinated aromatic compounds, and more preferably a method of preparing iodinated aromatic compounds comprising a step of iodinating a react ant including an aromatic compound, a di-iodo aromatic compound or water, and iodine (I2) in the presence of a zeolite catalyst and oxygen. The method of the present invention has an advantage that by iodination of a reactant including the aromatic compound, and the di˜ iodo aromatic compound or water in the presence of the zeolite catalyst and oxygen, the temperature of the iodinating reactor can be controlled reliably and constantly, thereby resulting in improved productivity per unit weight of catalyst and inhibition of a side reaction in accordance with suppression of producing impurities. In addition, the productivity of the iodinated aromatic compound, preferably the di-iodo aromatic compound, more preferably a p-di-iodo aromatic compound can be improved, and thus can be widely used in the preparation of a di-iodo aromatic compound such as a p-di-iodo aromatic compound.
    • 本发明涉及一种制备碘化芳族化合物的方法,更优选的是制备碘化芳族化合物的方法,其包括将包含芳族化合物,二碘芳族化合物或水的碘的反应锑和碘(I 2) 在沸石催化剂和氧的存在下。 本发明的方法具有的优点是,通过在沸石催化剂和氧气存在下,通过碘化包括芳族化合物和二碘芳香族化合物或水的反应物,可以可靠地控制碘化反应器的温度, 从而导致每单位重量催化剂的生产率提高,并且抑制副产物产生杂质。 此外,可以提高碘化芳香族化合物,优选二碘芳香族化合物,更优选对二碘芳香族化合物的生产率,因此可以广泛用于制备二碘芳族化合物,例如 作为对二碘芳族化合物。
    • 30. 发明授权
    • Catalytic gas phase fluorination of 243db to 1234yf
    • 催化气相氟化243db至1234yf
    • US08207384B2
    • 2012-06-26
    • US12978288
    • 2010-12-23
    • Laurent WendlingerAnne PigamoDominique Deur-Bert
    • Laurent WendlingerAnne PigamoDominique Deur-Bert
    • C07C17/00
    • C07C17/206B01J23/866B01J37/26C07C17/25C07C17/42C07C21/08Y02P20/582C07C19/10C07C21/18
    • The invention provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The invention also provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i).
    • 本发明提供一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,使气体中的243db与氟化氢HF接触; (ii)将反应混合物分离成包含HCl,1234yf和包含HF,1233xf和245cb的第二料流的第一料流; (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。 本发明还提供了一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,将气体中的243db与氟化氢HF气相接触; (ii)将反应混合物分离成HCl和含有氟化产物的料流; (iii)将含有氟化产物的物流分离成包含1234yf的第一物流和包含HF,1233xf和245cb的第二物流; (iv)至少部分地将至少一部分第二流再循环到步骤(i)。