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    PROCESS FOR PREPARING POLYALCOHOLS FROM FORMALDEHYDE HAVING A LOW FORMIC ACID CONTENT
    1.
    发明专利
    PROCESS FOR PREPARING POLYALCOHOLS FROM FORMALDEHYDE HAVING A LOW FORMIC ACID CONTENT 未知

    公开(公告)号：MY142957A

    公开(公告)日：2011-01-31

    申请号：MYPI20092806

    申请日：2007-12-10

    Applicant: BASF SE

    Inventor： TILMAN SIRCH ,  MICHAEL STEINIGER ,  STEFFEN MAAS ,  STEFAN RITTINGER ,  STEPHAN SCHLITTER ,  MARIA GUIXA GUARDIA ,  SPENGEMAN TODD C ,  ANDRESS JEFFREY T

    IPC: C07C37/20

    Abstract: PROCESS FOR PREPARING POLYALCOHOLS FROM FORMALDEHYDE WITH A LOW FORMIC ACID CONTENT 5 - II@2 (HOCHA- C (HOCH2)- C - CHO (11) 10 I R2 THE INVENTION RELATES TO A PROCESS FOR PREPARING POLYMETHYLOL COMPOUNDS OF THE FORMULA (1) IN WHICH R IS IN EACH CASE INDEPENDENTLY A FURTHER METHYLOL GROUP OR AN ALKYL GROUP HAVING FROM 1 TO 22 CARBON ATOMS OR AN ARYL OR ARALKYL 15 GROUP HAVING FROM 6 TO 22 CARBON ATOMS, BY CONDENSING ALDEHYDES HAVING FROM 2 TO 24 CARBON ATOMS IN AN A1DOL REACTION WITH FORMALDEHYDE USING TERTIARY AMINES AS A CATALYST TO GIVE ALKANALS OF THE FORMULA (11) IN WHICH R IS IN EACH CASE INDEPENDENTLY AS DEFINED ABOVE, AND THE SUBSEQUENT HYDROGENATION THEREOF. WHAT IS SPECIAL AND INVENTIVE ABOUT THIS PROCESS IS THAT THE ALDOL REACTION IS 20 CARRIED OUT WITH AN AQUEOUS FORMALDEHYDE SOLUTION HAVING A FORMIC ACID CONTENT OF

    METHOD FOR PRODUCING HYDROXYPIVALALDEHYDE AND NEOPENTYL GLYCOL
    2.
    发明专利
    METHOD FOR PRODUCING HYDROXYPIVALALDEHYDE AND NEOPENTYL GLYCOL 未知

    公开(公告)号：MY146487A

    公开(公告)日：2012-08-15

    申请号：MYPI20093610

    申请日：2008-02-25

    Applicant: BASF SE

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

    IPC: C07C45/72

    Abstract: THE PREPARATION OF HYDROXYPIVALALDEHYDE IS EFFECTED BY ALDOLIZING ISOBUTYRALDEHYDE (ISO) WITH FORMALDEHYDE AND SUBSEQUENTLY WORKING UP THE RESULTING REACTION EFFLUENT BY DISTILLATION, WHEREIN THE REACTION EFFLUENT (A) IS FED TO A DISTILLATION COLUMN WHICH IS OPERATED AT A TOP PRESSURE IN THE RANGE FROM 0.05 TO 0.15 MPA (0.5 TO 1.5 BAR) AND IN WHICH A TWO-STAGE CONDENSATION IS PROVIDED IN THE TOP REGION, IN WHICH THE VAPORS ARE FIRST CONDUCTED INTO A PARTIAL CONDENSER OPERATED AT A TEMPERATURE IN THE RANGE FROM 50 TO 80°C, WHOSE CONDENSATE IS RECYCLED AT LEAST PARTLY INTO THE DISTILLATION COLUMN, AND IN WHICH THE VAPORS UNCONDENSED IN THE PARTIAL CONDENSER ARE FED TO A DOWNSTREAM CONDENSER OPERATED AT A TEMPERATURE IN THE RANGE FROM -40 TO +30°C, WHOSE CONDENSATE IS AT LEAST PARTLY DISCHARGED.

    METHOD FOR PURIFYING CRUDE POLYMETHYLOLS
    3.
    发明专利
    METHOD FOR PURIFYING CRUDE POLYMETHYLOLS 未知

    公开(公告)号：MY153850A

    公开(公告)日：2015-03-31

    申请号：MYPI20112332

    申请日：2009-12-07

    Applicant: BASF SE

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

    IPC: C07C29/80

    Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR PURIFYING CRUDE POLYMETHYLOL WHICH COMPRISES POLYMETHYLOL OF THE FORMULA (I) IN WHICH EACH R IS INDEPENDENTLY A FURTHER METHYLOL GROUP OR AN ALKYL GROUP HAVING 1 TO 22 CARBON ATOMS OR AN ARYL OR ARALKYL GROUP HAVING 6 TO 22 CARBON ATOMS, AND ALSO HYDROXY ACID OF THE FORMULA (IV) IN WHICH EACH R IS INDEPENDENTLY AS DEFINED ABOVE, WHICH COMPRISES PERFORMING THE PURIFICATION IN A DISTILLATION COLUMN, THE BOTTOM OF THE DISTILLATION COLUMN BEING CONNECTED TO AN EVAPORATOR WITH A SHORT RESIDENCE TIME. THE PRESENT INVENTION FURTHER RELATES TO A COMPOSITION COMPRISING POLYMETHYLOL AND 1 TO 10 000 PPM BY WEIGHT OF AN ESTER OF POLYMETHYLOL AND OF A HYDROXY ACID AND TO THE USE THEREOF.

    METHOD FOR PRODUCING POLYMETHYLOLS
    6.
    发明专利
    METHOD FOR PRODUCING POLYMETHYLOLS 未知

    公开(公告)号：MY155607A

    公开(公告)日：2015-11-13

    申请号：MYPI2011003147

    申请日：2010-01-07

    Applicant: BASF SE

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

    IPC: C07C29/141

    Abstract: THE PRESENT INVENTION RELATES TO A METHOD FOR RECOVERING COMPONENTS FROM A LOW BOILER MIXTURE, WHICH ARISES IN THE DISTILLATION OF HYDROGENATION EFFLUENTS FROM THE PRODUCTION OF POLYMETHYLOLS, BY MULTI-STAGE DISTILLATION OF THE LOW BOILER MIXTURE, WHICH CONTAINS A TERTIARY AMINE, WATER, METHANOL, POLYMETHYLOL OF THE FORMULA (I), METHYLOLALKANAL OF THE FORMULA (II), ALCOHOL OF THE FORMULA (III), AND AN ALKANAL HAVING A METHYLENE GROUP IN THE ?-POSITION WITH RESPECT TO THE CARBONYL GROUP, AND IN WHICH R STANDS FOR ANOTHER METHYLOL GROUP OR AN ALKYL GROUP HAVING 1 TO 22 C ATOMS OR AN ARYL OR ARALKYL GROUP HAVING 6 TO 22 C ATOMS INDEPENDENTLY OF EACH OTHER IN EACH CASE, WHEREIN IN A FIRST DISTILLATION STAGE, THE LOW BOILER MIXTURE IS SEPARATED INTO A HIGHER BOILING, PREDOMINATELY WATER-RICH FRACTION AND INTO A LOWER BOILING AQUEOUS, ORGANIC FRACTION CONTAINING THE TERTIARY AMINE, AND IN THE SECOND DISTILLATION STAGE, THE AQUEOUS, ORGANIC FRACTION FROM THE FIRST DISTILLATION STAGE IS SEPARATED INTO A FRACTION PREDOMINANTLY CONTAINING AMINE AND ANOTHER AMINE-DEPLETED FRACTION, CHARACTERIZED IN THAT THE TERTIARY AMINE IS TRIMETHYLAMINE OR TRIETHYLAMINE AND THE SUMP TEMPERATURE IN THE SECOND DISTILLATION STAGE IS 110°C AND MORE.

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