POST-TREATMENT OF A ZEOLITIC MATERIAL
    2.
    发明申请
    POST-TREATMENT OF A ZEOLITIC MATERIAL 有权
    抗蚀材料的后处理

    公开(公告)号:US20150284255A1

    公开(公告)日:2015-10-08

    申请号:US14436180

    申请日:2013-10-09

    Applicant: BASF SE

    Abstract: A process for the post-treatment of a zeolitic material, the process comprising (i) providing a zeolitic material, wherein the framework structure of the zeolitic material comprises YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element; (ii) subjecting the zeolitic material provided in (i) to a method comprising (a) treating the zeolitic material with an aqueous solution having a pH of at most 5, (b) treating the zeolitic material obtained from (a) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.; wherein in (ii) and after (b), the zeolitic material is optionally subjected to at least one further treatment according to (a) and/or at least one further treatment according to (b).

    Abstract translation: 一种用于后处理沸石材料的方法,所述方法包括(i)提供沸石材料,其中沸石材料的骨架结构包含YO 2和X 2 O 3,其中Y是四价元素,X是三价元素; (ii)使(i)中提供的沸石材料的方法包括(a)用pH至多为5的水溶液处理沸石材料的方法,(b)用液体(a)处理从(a)得到的沸石材料 水系统,其pH在5.5至8范围内,温度至少为75℃; 其中在(ii)和(b)中,所述沸石材料任选地根据(a)和/或根据(b)的至少一种另外的处理进行至少一种另外的处理。

    PROCESS FOR THE DEALUMINATION OF ZEOLITIC MATERIALS

    公开(公告)号:US20240158245A1

    公开(公告)日:2024-05-16

    申请号:US18550143

    申请日:2022-03-18

    Applicant: BASF SE

    CPC classification number: C01B39/026

    Abstract: This disclosure relates to a process for the dealumination of a zeolitic material including



    (1) providing a zeolitic material having a tetravalent element and a trivalent element;
    (2) providing an aqueous solution having a pH of less than 0.1;
    (3) treating the zeolitic material with the aqueous solution; and

    with an aqueous solution or with a solvent system, wherein the aqueous solution or the solvent system have a pH comprised in the range of from 4 to 10, wherein the pH of the aqueous solution or of the solvent system refers to the pH prior to contacting with the zeolitic material for treatment thereof. This disclosure also relates to a zeolitic material as obtained and/or obtainable according to said process.

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