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    PROCESS FOR THE PURIFICATION OF PHYTOSTEROL
    21.
    发明申请
    PROCESS FOR THE PURIFICATION OF PHYTOSTEROL 有权

    公开(公告)号：US20220340615A1

    公开(公告)日：2022-10-27

    申请号：US17762752

    申请日：2020-09-24

    Applicant: BASF SE ,  BASF HEALTH AND CARE PRODUCTS FRANCE S.A.S.

    Inventor： Valerie EYCHENNE ,  Yannick BASSO ,  Olivier VALLEJO

    IPC: C07J9/00 ,  B01D9/00

    Abstract: A process for purification of phytosterols, said process comprising, a. providing a liquid mixture comprising a phytosterol, lower alcohol, wherein the lower alcohol is present in an amount of from 25 to 800% by weight, based on the amount of phytosterol; b. cooling the mixture to form phytosterol crystals, wherein the crystals are formed at a temperature of from of from 10° C. to 75° C., preferably 15° C. to 50° C., more preferably 20° C. to 45° C., even more preferably 25° C. to 35° C. c. separating the phytosterol crystals from the remainder of the mixture by filtration; d. subjecting the phytosterol crystals to washing with a solvent system comprising at least one polar aprotic solvent to obtain purified phytosterol; e. optionally repeating step (d); f. drying the washed phytosterol crystals; g. optionally melting and drying in molted state to remove traces of remaining solvent; and h. optionally subjecting to a particle-forming process to obtain solid sterol particles.

    FOUR-WAY CONVERSION CATALYST HAVING IMPROVED FILTER PROPERTIES
    24.
    发明申请
    FOUR-WAY CONVERSION CATALYST HAVING IMPROVED FILTER PROPERTIES 审中-公开

    公开(公告)号：US20200368727A1

    公开(公告)日：2020-11-26

    申请号：US16966319

    申请日：2019-02-04

    Applicant: BASF Corporation ,  BASF SE

    Inventor： Thomas SCHMITZ ,  Attilio SIANI ,  Stephan SIEMUND ,  Janosch CRAVILLON

    IPC: B01J23/63 ,  B01J23/58 ,  B01J35/04 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/00 ,  B01D53/94 ,  F01N3/28 ,  F01N3/10

    Abstract: A four-way conversion catalyst for treating a gasoline engine exhaust gas has a porous wall flow filter substrate with an inlet end, outlet end, substrate axial length extending between the inlet and outlet end, and passages defined by porous internal walls of the substrate, the passages having inlet passages with an open inlet and closed outlet, and outlet passages having a closed inlet and open outlet. The internal wall pores have a three-way conversion catalytic in-wall coating with an oxygen storage compound and a platinum group metal supported on a refractory metal oxide. On at least a portion of the internal wall surface defining the interface between the internal walls and the passages, the catalyst has a porous on-wall coating from the internal wall surface to the passage. The coating has porous oxidic compound and platinum group metal content of 0 to 0.001 wt. %, of the total coating weight.

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