151.
    发明专利
    未知

    公开(公告)号:DE10017222A1

    公开(公告)日:2001-10-11

    申请号:DE10017222

    申请日:2000-04-06

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing alkenyl ethers by reacting the corresponding alcohols or phenols with acetylenes in the liquid phase in the presence of basic alkali metal compounds and a cocatalyst. The inventive method is further characterized by using as the cocatalyst the compounds of the general formulae (Ia) and/or (Ib), wherein R , R independently represent C1 to C6 alkyl or C2 to C6 alkenyl, or R and R together represent a butenyl unit, and n is 1, 2, 3, 4 or 5.

    154.
    发明专利
    未知

    公开(公告)号:BR9813786A

    公开(公告)日:2000-10-03

    申请号:BR9813786

    申请日:1998-12-18

    Applicant: BASF AG

    Abstract: The hydrogenation of esters of benzene-dicarboxylic acids is carried out on supported catalysts containing a Sub-Group VIIII metal on a macroporous support. A process for the hydrogenation of benzene-dicarboxylic acid ester(s) with hydrogen in presence of a supported catalyst containing Sub-Group VIII metal(s) on a macroporous support. If the ester is dimethyl terephthalate, this excludes hydrogenation on a catalyst containing ruthenium, with or without Sub-Group I, VII or VIII metal(s), on a support with an average pore diameter (APD) of at least 50 nm and a BET surface of not more than 30 m /g, with an active metal content of 0.01-30 wt.% and a ratio of (active metal surface):(support surface) of less than 0.05, and/or on a catalyst containing 0.01-30 wt.% active metal(s) as above on a support in which 10-50 vol.% of the pores consist of macropores with a diameter of 50-10,000 nm and 50-90 vol.% consist of mesopores with a diameter of 2-50 nm.

    Hydrogenation of benzene polycarboxylic acids or derivatives to give products useful as plasticizers

    公开(公告)号:DE19832088A1

    公开(公告)日:2000-01-20

    申请号:DE19832088

    申请日:1998-07-16

    Applicant: BASF AG

    Abstract: Hydrogenation of benzene polycarboxylic acid(s) (or derivative(s)) with an H2-containing gas uses a catalyst which has a sub-Group VIII metal as active metal, alone or together with a sub-Group I or VII metal, on a carrier which is characterized by having macropores, there being provisos relating to the catalyst when dimethyl terephthalate is being hydrogenated. Hydrogenation of benzene polycarboxylic acid(s) (or derivative(s)) with an H2-containing gas uses a catalyst which has a sub-Group VIII metal as active metal, alone or together with a sub-Group I or VII metal, on a carrier which is characterized by having macropores, there being provisos when dimethyl terephthalate is being hydrogenated such that the following two types of catalysts are excluded : (i) a catalyst with Ru as the active metal, alone or together with a sub-Group I, VII or VIII metal, and which has (a) a carrier of average pore diameter at least 50nm and BET surface area at most 30m /g; (b) an active metal content of 0.01-30 wt.% of total catalyst wt.; and (c) a ratio active metal surface to carrier surface of below 0.05; and/or (ii) a catalyst with Ru as the active metal, alone or together with a sub-Group I, VII or VIII metal in an amount of 0.01-30 wt.% based on total catalyst wt., on a carrier having 10-50% of its pore volume of macropores of diameter 50-10,000nm and 50-90% of mesopores of diameter 2-50nm, the fractions of each type of pore adding up to 100%. An Independent claim is included for 9 novel cyclohexane-1,2-dicarboxylic acid esters.

    156.
    发明专利
    未知

    公开(公告)号:DE59603422D1

    公开(公告)日:1999-11-25

    申请号:DE59603422

    申请日:1996-03-21

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/01247 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Mar. 21, 1996 PCT Pub. No. WO96/29322 PCT Pub. Date Sep. 26, 19961,4-butanediol and THF are prepared from furan by a process which comprises converting furan in the presence of water and hydrogen but in the absence of a water-soluble acid in a single stage over a hydrogenation catalyst, the hydrogenation catalyst containing at least one element of subgroup I, V, VI, VII or VIII in the form of a compound or in elemental form and the restriction that the catalyst does not contain nickel alone being applicable.

    157.
    发明专利
    未知

    公开(公告)号:DE19806038A1

    公开(公告)日:1999-08-19

    申请号:DE19806038

    申请日:1998-02-13

    Applicant: BASF AG

    Abstract: The invention relates to a method for separating maleic anhydride from the maleic anhydride-containing reactor waste gases resulting from maleic anhydride production by hydrocarbon oxidation. According to said method the gas stream is placed into contact with a high-boiling inert absorption agent for maleic anhydride and maleic anhydride is separated from the resulting liquid absorbate phase by steam stripping. An alcohol is used as desorption agent and maleic anhydride at least partly reacts with the alcohol to yield an ester.

    158.
    发明专利
    未知

    公开(公告)号:AT176908T

    公开(公告)日:1999-03-15

    申请号:AT95900684

    申请日:1994-11-09

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03683 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 9, 1994 PCT Pub. No. WO95/14010 PCT Pub. Date May 26, 1995A process for the preparation of gamma -butyrolactone, in which 2,5-dihydrofuran or 2,3-dihydrofuran or a mixture of these two dihydrofurans is caused to react in the gas phase in the presence of water and in the presence or absence of additional hydrogen at elevated temperature over a hydrogenating catalyst.

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