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    METHOD FOR PRODUCING 1,6-HEXANEDIOL BY HYDROGENATION OF OLIGO- AND POLYESTERS
    31.
    发明专利
    METHOD FOR PRODUCING 1,6-HEXANEDIOL BY HYDROGENATION OF OLIGO- AND POLYESTERS 未知

    公开(公告)号：SG174379A1

    公开(公告)日：2011-10-28

    申请号：SG2011066149

    申请日：2010-03-29

    Applicant: BASF SE

    Inventor： ABILLARD OLIVIER ,  PINKOS ROLF ,  TEBBEN GERD-DIETER ,  SIRCH TILMAN ,  URBANCZYK DANIEL ,  URTEL HEIKO ,  TOMPERS ROLF

    Abstract: Method for producing 1,6-hexanediol by hydrogenation of oligo-and polyestersAbstractThe present invention relates to a process for hydrogenating oligo-and/or polyestersobtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copperoxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybderum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediolby catalytically hydrogenating ester mixtures which comprise, as main components,oligo- and polyesters of a adipic acid and 6-hydroxycaproic acid, and are obtained byesterifying DCS with diois, especially 1,6-hexanediol or diol mixtures.No suitable figure

    33.
    发明专利
    未知

    公开(公告)号：AT481375T

    公开(公告)日：2010-10-15

    申请号：AT05801747

    申请日：2005-10-27

    Applicant: BASF SE

    Inventor： SIRCH TILMAN ,  TEBBEN GERD-DIETER ,  HECK LUDWIG E ,  DIEFENBACHER ARMIN ,  KRAUSE ALFRED ,  BORGEL FRANZ

    IPC: C07C29/149

    Abstract: The present invention provides a process for preparing 1,6-hexanediol from a carboxylic acid mixture which comprises adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols and is obtained as a by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-containing gases and by water extraction of the reaction mixture, by esterification of the acids and hydrogenation, in which a) the mono- and dicarboxylic acids present in the aqueous dicarboxylic acid mixture are reacted with a low molecular weight alcohol to give the corresponding carboxylic esters, b) the resulting esterification mixture is freed of excess alcohol and low boilers in a first distillation stage, c) a separation of the bottom product is carried out in a second distillation stage into an ester fraction substantially free of 1,4-cyclohexanediols and a fraction comprising at least the majority of the 1,4-cyclohexanediols, d) the ester fraction substantially free of 1,4-cyclohexanediols is catalytically hydrogenated and e) 1,6-hexanediol is obtained in a purifying distillation stage from the hydrogenation effluent while removing an alcohol-low boiler mixture in a manner known per se, wherein alcohol is removed by a membrane system from the mixtures, obtained after the esterification in stage b) and/or after the hydrogenation in stage e), of alcohols and low boilers and recycled into the esterification.

    35.
    发明专利
    未知

    公开(公告)号：DE50310114D1

    公开(公告)日：2008-08-21

    申请号：DE50310114

    申请日：2003-07-18

    Applicant: BASF SE

    Inventor： WARTINI ALEXANDER ,  SIRCH TILMAN ,  MELDER JOHANN-PETER ,  DERNBACH MATTHIAS

    IPC: C07C29/10 ,  C07C29/141 ,  C07C29/88 ,  C07C45/75

    Abstract: The invention relates to a method for increasing yield in the production of polyvalent alcohols, especially trimethylolpropane, obtained by condensing formaldehyde with a higher aldehyde. According to the inventive method, acid treatment is carried out on a mixture (high-boiling fraction) that is obtained by reprocessing, contains derivatives of said alcohols and has a higher boiling point than the respective alcohol, and the polyvalent alcohol is recovered from the acid-treated high-boiling fraction. The inventive method is characterised in that the water content of the high-boiling fraction amounts to between 20 and 90 wt. % in relation to the entire mixture of the high-boiling fraction and water.

    METHOD FOR PRODUCING POLYMETHYLOLS
    36.
    发明专利
    METHOD FOR PRODUCING POLYMETHYLOLS 未知

    公开(公告)号：MY176941A

    公开(公告)日：2020-08-27

    申请号：MYPI2011002442

    申请日：2009-12-07

    Applicant: BASF SE

    Inventor： STEINIGER MICHAEL ,  MAAS STEFFEN ,  SIRCH TILMAN ,  RITTINGER STEFAN ,  SCHLITTER STEPHAN

    Abstract: The invention relates to a method for distilling an aqueous polymethylol mixture, comprising a polymethylol of formula (I), where R independently = a further methylol group, or 1 to 22 C alkyl, or a 6 to 22 C aryl or aralkyl group, a tertiary amine, water and the adduct of tertiary amine and formic acid, (amine formate), characterised in that the distillation is carried out in a distillation column connected to an evaporator at the kettle, wherein the kettle temperature is maintained above the boiling point of the mono-ester of formic acid and polymethylol (polymethylol formate) formed during the distillation. The invention further relates to a composition comprising polymethylol and 1 to 10,000 ppm by weight of polymethylol formate and the use thereof.

    METHOD FOR PRODUCING POLYMETHYLOLS
    40.
    发明专利
    METHOD FOR PRODUCING POLYMETHYLOLS 未知

    公开(公告)号：SG172807A1

    公开(公告)日：2011-08-29

    申请号：SG2011047784

    申请日：2010-01-07

    Applicant: BASF SE

    Inventor： SCHLITTER STEPHAN ,  STEINIGER MICHAEL ,  RITTINGER STEFAN ,  SIRCH TILMAN ,  MAAS STEFFEN

    Abstract: PF 61684Method for producing poiymethylots Abstract5 The present invention a process for recovering eornponcnfs from a low hollermixture which is obtained in the distillation of hydrogenation effluents from the prepara tion of polymethylots, by MbItistage distigation of the tow bler Modure corn-tertiary amine, water, me.thanol, pcitymethylol of the formula 0)10 methybtstkana.l of the formula Ohl(HOC H2) -- CHOR/15tthefoHC—OH20 and an alkanal with a methylene group M the a position to the carbonyl “cup,and in whir:1-k itrach R is independently a further methyloi group or an alkyl group having Ito 22 carbon atoms or an aryl or aralkyl group hawing 6 to 22 carbon Wan%a first disttlation stage invohil eporating the >ow bailer mixture into a higher-b predornioarWy water-rich fraction and into a lower-boiling aqueous organic traction compristng the tertiary amine,and the .wiond disttitation stage invcMng separatlng the aqueous oruanic fraction from the first dist:gat-ion stage into a predominantly amine-containing fraction and a further arnirdepletted fraction,iivherein the tartan/ amine is frimeihyarnine or thethyiantine, and the bottom tempema tore in the second distillation stage is tificC and mom.

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