CATALYST AND METHOD FOR THE PRODUCTION OF POLYTETRAHYDROFURAN

    公开(公告)号:MY137357A

    公开(公告)日:2009-01-30

    申请号:MYPI20021995

    申请日:2002-05-30

    Applicant: BASF AG

    Abstract: POLYTETRAHYDROFURAN, POLYTETRAHYDROFURAN COPOLYMERS, DIESTERS OR MONOESTERS OF THESE POLYMERS ARE PREPARED BY POLYMERIZATION OF TETRAHYDROFURAN IN THE PRESENCE OF AT LEAST ONE TELOGEN AND/OR COMONOMER, WHICH IS IN THE FORM OF SHAPED CATALYST BODIES OR CATALYST PARTICLES HAVING A VOLUME OF THE INDIVIDUAL SHAPE OF THE BODY OR PARTICLE OF AT LEAST 0.05 mm3, PREFERABLY AT LEAST 0.2 mm3, IN PARTICULAR 1 mm3, AND HAS AT LEAST ONE OF THE FEATURES a) AND b) : a)A PORE RADIUS DISTRIBUTION HAVING AT LEAST ONE MAXIMUM IN THE PORE RADIUS RANGE FROM 100 TO 5000 Å,b)A PORE VOLUME OF CATALYST PRES HAVING RADII OF 200 - 3000 Å OF GREATER THAN 0.05 cm3/g AND/OR A PORE VOLUME OF PORES HAVING RADII OF 200 - 5000 Å OF GREATER THAN 0.075 cm3/g AND/OR A PORE VOLUME OF PORES HAVING RADII OF > 200 Å OF GREATER THAN 0.1 cm3/g.

    38.
    发明专利
    未知

    公开(公告)号:DE59811573D1

    公开(公告)日:2004-07-22

    申请号:DE59811573

    申请日:1998-11-26

    Applicant: BASF AG

    Abstract: Unsaturated cyclic ethers are produced from diols in high yield and with low hydrogenated byproduct formation, by use of a supported cobalt-noble metal catalyst that has been doped with sulfur. A process for the production of unsaturated cyclic ethers (I) of formula (1) comprises reaction of a diol (II) of formula: OH-CH(R )-Y-CH(R )-CH(R )-OH (2), in the liquid phase at 150-300 degrees C, in the presence of a supported cobalt- containing catalyst (III) that has not been activated by reduction prior to use. The cobalt containing catalyst (III) is impregnated with a noble metal consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and/or rhenium on an inert carrier that is doped with sulfur. Y = -(CHR )q- or -(CHR )q-O-; R - R = H or 1-4C alkyl; q = 0-3. An Independent claim is also included for the supported cobalt catalyst (III).

    Easily prepared and separated catalyst giving pure alkoxylation product with narrow molecular weight distribution

    公开(公告)号:DE19632440A1

    公开(公告)日:1998-02-19

    申请号:DE19632440

    申请日:1996-08-12

    Applicant: BASF AG

    Abstract: - Mixed hydroxides of polycations, of formula (I) or (II), which are modified with various additives (III) and contain > 0 to 50 wt.% binder(s) (IV) based on aluminium and/or silicon compounds are claimed; in which M((I) = divalent metal ion(s); M(III) = trivalent metal ion(s); A = inorganic anion(s); L = an organic solvent or water; n = the valency of anion A or the average valency of several anions A; x = 0.1-0.5; m = 0-10. (III) are (a) (hetero)aromatic mono- or polycarboxylic acids or salts; (b) aliphatic mono- or polycarboxylic acids or salts with an isocyclic or heterocyclic ring in the side chain; (c) half esters of dicarboxylic acids or salts; (d) carboxylic anhydrides; (e) aliphatic or aromatic sulphonic acids or salts; (f) 8-18 carbon (C) alkyl sulphates; (g) long-chain paraffins; (h) polyether-(poly)ols; (j) alcohols or phenols; or (k) aliphatic 4-44 C dicarboxylic or aliphatic 7-34 C monocarboxylic acids. Also claimed are (a) a method for producing (I) and (II) modified with (III), in which these materials are moulded by consolidation; and (b) a method of preparing alkoxylation products (V) with improved filterability.

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