Synthesis of zeolites of faujasite structure
    1.
    发明授权
    Synthesis of zeolites of faujasite structure 失效
    八面沸石结构沸石的合成

    公开(公告)号:US5393511A

    公开(公告)日:1995-02-28

    申请号:US919855

    申请日:1992-07-27

    IPC分类号: C01B39/20 C01B33/34

    摘要: A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced, which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or organic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.

    摘要翻译: 提供了一种制备属于八面沸石结构级的沸石的方法,其表现出高于1的Si:Al比,其中首先制备反应混合物,其pH高于10并含有水,四价硅源 ,三价铝源,强无机或有机碱形式的氢氧根离子源和结构化剂ST,以产生具有所需组成的硅铝酸盐凝胶,以使其结晶成八面沸石结构类化合物 。 将获得的凝胶保持在温度,压力和足够的时间以使凝胶结晶成沸石的前体,该沸石由在其空腔中俘获结构化剂ST的沸石组成,然后将前体煅烧至 破坏结构剂并产生沸石。 结构化剂ST由至少一种属于由含碳大环形成的基团和大分子聚合物组成,所述化合物在环中含有选自氧,氮,硅和硫的杂原子,并且每个环含有10至24个原子。 还提供沸石的前体。

    Synthesis of zeolites of faujasite structure
    2.
    发明授权
    Synthesis of zeolites of faujasite structure 失效
    合成沸石结构的沸石

    公开(公告)号:US5098686A

    公开(公告)日:1992-03-24

    申请号:US499272

    申请日:1990-06-08

    IPC分类号: B01J20/16 C01B39/00 C01B39/20

    摘要: A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or orgnaic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings, heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.

    摘要翻译: PCT No.PCT / FR89 / 00522 Sec。 371日期:1990年6月8日 102(e)日期1990年6月8日PCT提交1989年10月10日PCT公布。 出版物WO90 / 03944 日本1990年04月19日提供了一种制备属于八面沸石结构级的沸石的方法,其表现出高于1的Si:Al比,其中首先制备pH高于10并含有水的反应混合物 ,四价硅源,三价铝源,强无机或有机碱形式的氢氧根离子源和结构化剂ST,以产生具有所需组成的硅铝酸盐凝胶,使其结晶成为 八面沸石结构类化合物。 将获得的凝胶保持在温度,压力和足够的时间以使凝胶结晶成沸石的前体,该沸石由在其空腔中俘获结构化剂ST的沸石组成,然后将前体煅烧至 破坏结构剂并产生沸石。 结构化剂ST由至少一种属于由含碳的大环形成的基团和在聚合物环中含有选自氧,氮,硅和硫的杂原子,并且每个环含有10至24个原子的大分子形成的化合物组成。 还提供沸石的前体。

    Process for the synthesis of zeolites having an aluminosilicate
framework belonging to the faujasite structural family, products
obtained and their use in adsorption and catalysis
    3.
    发明授权
    Process for the synthesis of zeolites having an aluminosilicate framework belonging to the faujasite structural family, products obtained and their use in adsorption and catalysis 失效
    用于合成具有属于八面沸石结构族的铝硅酸盐骨架的沸石的方法,所获得的产物及其在吸附和催化中的用途

    公开(公告)号:US5385717A

    公开(公告)日:1995-01-31

    申请号:US933031

    申请日:1992-08-20

    摘要: An aluminosilicate gel containing a structuring agent ST and having a composition appropriate for crystallizing as a zeolite of the faujasite structural family is prepared and then subjected to a crystallization to form a zeolite precursor consisting of the said zeolite containing the structuring agent ST in its cavities and channels, and zeolite is produced by calcination of the said precursor. The structuring agent ST consists of at least one compound chosen from the polyalkylene oxides of the formula ##STR1## in which R and R', which are identical or different, each represent H or a C.sub.1 to C.sub.4 alkyl radical, X denotes H or OH, m is equal to 2 or 3 and may be different from one unit to the next and n is a number larger than 12 and preferably between 25 and 800. The zeolites obtained have a Si:Al ratio which is larger than 1 and may exceed 3 and they have a cubic symmetry. These zeolites are usable, directly or after cation exchange, as adsorbents or as catalyst components.

    摘要翻译: 制备含有结构化剂ST并且具有适合作为八面沸石结构族的沸石结晶的组成的铝硅酸盐凝胶,然后进行结晶以形成由其中含有结构化剂ST在其空腔中的所述沸石组成的沸石前体, 通道和沸石是通过煅烧所述前体产生的。 结构剂ST由至少一种选自式RO [CmH2m-1XO] nR'的聚环氧烷的化合物组成,其中R和R'相同或不同,各自表示H或C1至C4烷基, X表示H或OH,m等于2或3,并且可以不同于一个单元和下一个单元,n是大于12,优选25至800的数。所获得的沸石的Si:Al比例较大 超过1并且可以超过3并且它们具有立方对称性。 这些沸石可直接或在阳离子交换后用作吸附剂或催化剂组分。

    Production of thin layers of polycrystalline silicon on a liquid layer
containing a reducing agent
    6.
    发明授权
    Production of thin layers of polycrystalline silicon on a liquid layer containing a reducing agent 失效
    在含有还原剂的液体层上生产薄层多晶硅

    公开(公告)号:US4225367A

    公开(公告)日:1980-09-30

    申请号:US958178

    申请日:1978-11-06

    申请人: Didier Anglerot

    发明人: Didier Anglerot

    CPC分类号: C30B29/06 C23C16/24 C30B25/18

    摘要: Thin layers of polycrystalline silicon are formed atop a metal substrate, by reducing a gaseous silicon containing compound with metallic zinc, in liquid state, and in the presence of at least one other metal which is also in liquid state, same being either tin, lead, gold, silver, antimony and/or bismuth. The reaction is conducted under conditions such that the zinc compound product of reduction is also in gaseous state.

    摘要翻译: 多晶硅薄层形成在金属基体的顶部,通过用液态的金属锌还原气态含硅化合物,还有至少一种其它也处于液态的金属,同样是锡,铅 ,金,银,锑和/或铋。 反应在还原的锌化合物也处于气态的条件下进行。

    Composition formed of mercaptans which can be used in a process for the flotation of ores
    9.
    发明授权
    Composition formed of mercaptans which can be used in a process for the flotation of ores 有权
    由硫醇组成的组合物,可用于矿石浮选的过程

    公开(公告)号:US07014048B2

    公开(公告)日:2006-03-21

    申请号:US10863935

    申请日:2004-06-09

    IPC分类号: B03D1/012 B03D1/02

    摘要: Composition intended for the flotation of ores, comprising: from 70 to 95% of a combination (A) of n-dodecyl mercaptan (or NDM) and of tert-dodecyl mercaptan (or TDM), the NDM/TDM ratio by weight of which is between 0.5 and 1.5, and from 5 to 30% of a product (B) composed of one or more aromatic or aliphatic compounds comprising from 4 to 100 carbon atoms, preferably from 5 to 40, and having one or two —OH groups. Process for the recovery by flotation of metal compounds of value present in ores employing it.

    摘要翻译: 用于矿石浮选的组合物,包括:70-95%的正十二烷基硫醇(或NDM)和叔十二烷基硫醇(或TDM)的组合(A),其重量的NDM / TDM比例 是由包含4至100个碳原子,优选5至40个并且具有一个或两个-OH基团的一种或多种芳族或脂族化合物组成的产物(B)的0.5至1.5%和5至30%。 通过浮选使用它的矿石中存在的金属化合物进行回收的方法。

    Process of making alcohol-free beer and beer aroma concentrates
    10.
    发明授权
    Process of making alcohol-free beer and beer aroma concentrates 失效
    生产无酒精啤酒和啤酒香气浓缩物的方法

    公开(公告)号:US5308631A

    公开(公告)日:1994-05-03

    申请号:US777087

    申请日:1991-10-16

    申请人: Didier Anglerot

    发明人: Didier Anglerot

    CPC分类号: C12G3/08 C12C12/04

    摘要: The process comprises bringing into contact a naturally alcoholic beer with a hydrophobic zeolite, separating the aqueous eluent phase from the adsorbent, thermally desorbing the adsorbed products, recovering the desorbed phase and separating it by distillation into an alcoholate and an aromatized phase, then reconstituting an alcohol-free beer by mixing the dealcoholized aqueous phase and the aromatized phase with, secondarily, saturation of the reconstituted beer with gaseous carbon dioxide. The reconstituted beer preserves the organoleptic properties of the initial beer.

    摘要翻译: 该方法包括使天然含酒精啤酒与疏水性沸石接触,将吸附剂的水洗脱相与吸附剂分离,热解吸附产物,回收脱附相并通过蒸馏将其分离成醇化物和芳构化相,然后重构 通过将脱醇水相和芳构化相混合,然后用气态二氧化碳饱和重构啤酒,从而制备无酒精啤酒。 重建的啤酒保留了初始啤酒的感官特性。