Method of producing naphthalenedicarboxylic acid
    2.
    发明授权
    Method of producing naphthalenedicarboxylic acid 有权
    生产萘二甲酸的方法

    公开(公告)号:US06268528B1

    公开(公告)日:2001-07-31

    申请号:US09432783

    申请日:1999-11-03

    CPC classification number: C07C51/265 C07C63/38

    Abstract: Dialkylnaphthalene is oxidized to naphthalenedicarboxylic acid in a lower aliphatic carboxylic acid solvent in the presence of a catalyst comprising a cobalt compound, a manganese compound and a bromine compound having an atomic ratio of manganese to cobalt of 0.03 to 0.5. The catalyst is supplied to the oxidation reaction zone so that the total amount of cobalt and manganese is 0.025 to 0.1 gram atom based on 1 gram mol of the dialkylnaphthalene. An oxidation product slurry is subjected to solid-liquid separation when the concentration of the naphthalenedicarboxylic acid in the slurry is 8 to 30% by weight. The process prevents the by-production of benzotricarboxylic acid such as trimellitic acid, thereby drastically reducing the incorporation of heavy metal complexes with trimellitic acid into naphthalenedicarboxylic acid crystals. The process optionally includes the addition of a polymer flocculant, this forming crystal aggregates with a large particle size and facilitating the separation of the crystals from the mother liquor.

    Abstract translation: 在包含钴化合物,锰化合物和原子比为锰与钴的溴化合物的催化剂存在下,在低级脂族羧酸溶剂中将二烷基萘氧化成萘二羧酸为0.03〜0.5。 将催化剂供应到氧化反应区,使得钴和锰的总量基于1克摩尔的二烷基萘为0.025至0.1克原子。 当浆料中萘二甲酸的浓度为8〜30重量%时,氧化产物浆液进行固液分离。 该方法防止苯三甲酸如偏苯三酸的副产物,从而大大降低了与偏苯三酸的重金属络合物与萘二甲酸晶体的结合。 该方法任选地包括加入聚合物絮凝剂,这种形成晶体具有大粒径的聚集体并且有利于晶体与母液的分离。

    DEOXIDIZING MULTILAYERED BODY
    4.
    发明申请
    DEOXIDIZING MULTILAYERED BODY 有权
    去除多层体

    公开(公告)号:US20120064272A1

    公开(公告)日:2012-03-15

    申请号:US13320876

    申请日:2009-08-26

    Abstract: The present invention provides a deoxidizing multilayered body, which sufficiently suppresses the production of odorous organic components produced by oxidation, and which absorbs oxygen at a fast rate.The present invention relates to the deoxidizing multilayered body that is constituted by laminating at least an isolation layer (A) that contains a thermoplastic resin, an oxygen absorption layer (B) which is made of an oxygen absorbent resin composition (b) that contains an oxidizable thermoplastic resin and a transition metal catalyst, an odor absorption layer (C) which is made of an odor absorbent resin composition (c) that contains a thermoplastic resin and an odor absorbent, and an oxygen barrier layer (D) which contains an oxygen barrier substance, in this order.

    Abstract translation: 本发明提供了一种能够充分抑制通过氧化产生的恶臭有机成分的生成并且以快速吸收氧气的脱氧多层体。 本发明涉及通过层压至少包含热塑性树脂的隔离层(A),由吸氧性树脂组合物(b)制成的氧吸收层(B))构成的脱氧多层体,所述吸氧层包含 可氧化热塑性树脂和过渡金属催化剂,由含有热塑性树脂和吸臭剂的吸气性树脂组合物(c)制成的气味吸收层(C)和含有氧气的氧阻隔层(D) 屏障物质,按此顺序。

    DEOXIDIZING MULTILAYERED BODY
    5.
    发明申请
    DEOXIDIZING MULTILAYERED BODY 有权
    去除多层体

    公开(公告)号:US20110171074A1

    公开(公告)日:2011-07-14

    申请号:US13060644

    申请日:2009-08-26

    Abstract: The present invention provides a deoxidizing multilayered body, which sufficiently suppresses the production of odorous organic components produced with oxidation, and which absorbs oxygen at a fast rate. The present invention is the deoxidizing multilayered body that is constituted by laminating at least an isolation layer (A) that contains a thermoplastic resin, an odor absorption layer (B), which is made from an odor absorbent resin composition (b) that contains an oxidizable thermoplastic resin, a transition metal catalyst, and an odor absorbent, an oxygen absorption layer (C), which is made from an oxygen absorbent resin composition (c) that contains an oxidizable thermoplastic resin and a transition metal catalyst, and an oxygen barrier layer (D), which contains an oxygen barrier substance, in this order.

    Abstract translation: 本发明提供了一种脱氧多层体,其充分抑制了氧化产生的恶臭有机成分的产生,并以较快的速度吸收氧气。 本发明是通过层叠至少包含热塑性树脂的隔离层(A)和气味吸收层(B)构成的脱氧多层体,该气味吸收层(B)由含有 可氧化热塑性树脂,过渡金属催化剂和臭味吸收剂,由含有可氧化热塑性树脂和过渡金属催化剂的氧吸收剂树脂组合物(c)制成的氧吸收层(C) 层(D),其含有氧阻隔物质。

    Deoxidizing multilayered body
    7.
    发明授权
    Deoxidizing multilayered body 有权
    脱氧多层体

    公开(公告)号:US08679468B2

    公开(公告)日:2014-03-25

    申请号:US13060644

    申请日:2009-08-26

    Abstract: The present invention provides a deoxidizing multilayered body, which sufficiently suppresses the production of odorous organic components produced with oxidation, and which absorbs oxygen at a fast rate. The present invention is the deoxidizing multilayered body that is constituted by laminating at least an isolation layer (A) that contains a thermoplastic resin, an odor absorption layer (B), which is made from an odor absorbent resin composition (b) that contains an oxidizable thermoplastic resin, a transition metal catalyst, and an odor absorbent, an oxygen absorption layer (C), which is made from an oxygen absorbent resin composition (c) that contains an oxidizable thermoplastic resin and a transition metal catalyst, and an oxygen barrier layer (D), which contains an oxygen barrier substance, in this order.

    Abstract translation: 本发明提供了一种脱氧多层体,其充分抑制了氧化产生的恶臭有机成分的产生,并以较快的速度吸收氧气。 本发明是通过层叠至少包含热塑性树脂的隔离层(A)和气味吸收层(B)构成的脱氧多层体,该气味吸收层(B)由含有 可氧化热塑性树脂,过渡金属催化剂和臭味吸收剂,由含有可氧化热塑性树脂和过渡金属催化剂的氧吸收剂树脂组合物(c)制成的氧吸收层(C) 层(D),其含有氧阻隔物质。

    Catalysts for methanol conversion reactions
    8.
    发明授权
    Catalysts for methanol conversion reactions 失效
    用于甲醇转化反应的催化剂

    公开(公告)号:US6153798A

    公开(公告)日:2000-11-28

    申请号:US121307

    申请日:1998-07-23

    CPC classification number: C07C209/16 B01J29/85 B01J2229/32

    Abstract: Dimethylamine is prepared from a reaction of methanol with ammonia or monomethylamine or a disproportionation reaction of monomethylamine, in the presence of a catalyst of silica-modified crystalline silicoaluminophosphate molecular sieve or silica-modified SAPO.

    Abstract translation: 在二氧化硅改性的结晶硅铝磷酸盐分子筛或二氧化硅改性的SAPO的催化剂存在下,由甲醇与氨或一甲基胺或单甲胺的歧化反应制备二甲胺。

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