Process for preparing a silicon dioxide composition
    3.
    发明公开
    Process for preparing a silicon dioxide composition 审中-公开
    制备二氧化硅组合物的方法

    公开(公告)号:EP2868628A1

    公开(公告)日:2015-05-06

    申请号:EP13190852.7

    申请日:2013-10-30

    申请人: BASF SE

    IPC分类号: C01B33/12 C01B37/00

    摘要: The present invention relates to a process for preparing a silicon dioxide composition comprising mesoporous silicon dioxide particles itself and a use thereof. In particular, the present invention relates to a process for preparing silicon dioxide composition with particulate structure and having high BET (Brunauer-Emmet-Teller) surface area and excellent sorption properties. The process is based on using water glass as a cheap precursor, which is precipitated by controlled addition of acid in the presence of surfactant as structure directing agent at constant pH values.

    摘要翻译: 本发明涉及一种制备包含介孔二氧化硅颗粒本身的二氧化硅组合物的方法及其用途。 具体而言,本发明涉及制备具有颗粒结构并具有高BET(Brunauer-Emmet-Teller)表面积和优异的吸附性能的二氧化硅组合物的方法。 该方法基于使用水玻璃作为廉价的前体,其通过在表面活性剂作为结构导向剂存在于恒定pH值下的受控添加酸而沉淀。

    STRUCTURE FOR MOLECULAR SEPARATIONS
    5.
    发明公开
    STRUCTURE FOR MOLECULAR SEPARATIONS 有权
    结构分子分离

    公开(公告)号:EP2356260A4

    公开(公告)日:2015-01-28

    申请号:EP09829638

    申请日:2009-10-30

    申请人: CERAHELIX INC

    IPC分类号: B01D67/00 B01D71/02

    摘要: A process of producing a structure for molecular separations includes providing a plurality of biopolymers. The biopolymers are selected from DNAs, RNAs, nucleic acid loops, nucleic acid hairpins, nucleic acid dumbbells, alkylated phosphonates, non-standard nucleobases, or combinations thereof. A sieve material, suitable for producing a structure for molecular separations, is provided around the biopolymers. The biopolymers are positioned in an arrangement for leaving pores suitable for molecular separations. The biopolymers are removed to leave pores in the sieve material and produce the structure suitable for molecular separations.

    METHOD OF SYNTHESIS OF CMK-3-TYPE CARBON REPLICA
    6.
    发明公开
    METHOD OF SYNTHESIS OF CMK-3-TYPE CARBON REPLICA 有权
    合成CMK-3型碳复制物的方法

    公开(公告)号:EP2814777A1

    公开(公告)日:2014-12-24

    申请号:EP13710627.4

    申请日:2013-02-08

    IPC分类号: C01B31/02

    摘要: The method of obtaining the CMK-3-type carbon replica, consisting of the introduction of SBA-15-type molecular sieve to a mixture of furfuryl alcohol and a solvent, the subsequent polycondensation of furfuryl alcohol, carbonization of the prepared, composite and removal of the hard template, according to the invention, is characterised in that the reaction of furfuryl alcohol polycondensation is carried out by the precipitation method in a slurry containing SBA-15 silica sieve, water, furfuryl alcohol and concentrated solution of hydrochloric acid in mass ratios, respectively, in the range from 1.00:32.33:1.00:6.65 to 1.00:30.83:2.50:16.64, whereas the ratio of the total mass of furfuryl alcohol and water to the mass of SBA-15 as well as the mass ratio of the concentrated HCI solution to the mass of furfuryl alcohol are kept at the constant value every time.

    摘要翻译: 获得CMK-3型碳复制品的方法包括将SBA-15型分子筛引入到糠醇和溶剂的混合物中,随后糠醇的缩聚,所制备的碳化,复合和去除 根据本发明,其特征在于糠醇缩聚的反应通过沉淀法在含有SBA-15二氧化硅筛,水,糠醇和浓盐酸溶液的浆料中以质量比 分别在1.00:32.33:1.00:6.65至1.00:30.83:2.5:16.64的范围内,而糠醇和水的总质量与SBA-15的质量的比率以及糠醇和水的质量比 浓HCl溶液对糠醇的质量每次都保持恒定值。

    Process for the preparation of zeolites having B-CHA structure
    10.
    发明公开
    Process for the preparation of zeolites having B-CHA structure 审中-公开
    一种制备沸石与B-CHA结构的方法

    公开(公告)号:EP2325143A3

    公开(公告)日:2011-07-06

    申请号:EP10192003.1

    申请日:2010-11-22

    申请人: BASF SE

    摘要: The present invention relates to a process for the preparation of zeolites having B-CHA framework structure and a composition comprising the molar ratio (n SiO 2 ) : B 2 O 3 , wherein n is at least 10, the process comprising
    (i) preparation of an aqueous solution containing at least one source for B 2 O 3 , at least one source for SiO 2 , at least one source of seeding crystals of chabazite structure, at least one organic structure directing agent (SDA) other than Tetramethylammonium hydroxide (TMAOH), acting as a template for the B-CHA structure, and Tetramethylammonium hydroxide (TMAOH), wherein the SDA or mixtures thereof are employed in such amounts that the aqueous solution in (i) exhibits a molar ratio of SDA : TMAOH of 0.01 to 5;
    (ii) hydrothermal crystallization of the aqueous solution according to (i);
    wherein the ratio of the [molar ratio (SiO 2 : B 2 O 3 )] of the gel composition : [molar ratio (SiO 2 : B 2 O 3 )] of the crystalline product having the chabazite structure is greater than 0.5.
    The present invention also relates to the zeolitic materials obtainable and/or obtained by this process as well as to a zeolitic material as such, having framework structure B-CHA, having a composition comprising the molar ratio (n SiO 2 ) : B 2 O 3 , wherein n is at least 10, and wherein the ratio of the [molar ratio (SiO 2 : B 2 O 3 )] of the gel composition: [molar ratio (SiO 2 : B 2 O 3 )] of the crystalline product having the chabazite structure is greater than 0.5.