Process For Treating a Reaction Mixture Comprising Alkoxycarbonylaminotriazine
    4.
    发明申请
    Process For Treating a Reaction Mixture Comprising Alkoxycarbonylaminotriazine 审中-公开
    用于处理包含烷氧基氨基三嗪的反应混合物的方法

    公开(公告)号:US20080306261A1

    公开(公告)日:2008-12-11

    申请号:US11916626

    申请日:2006-06-02

    IPC分类号: C07D251/48

    CPC分类号: C07D251/70

    摘要: Processes comprising: providing an alkanolic reaction mixture, the alkanolic reaction mixture comprising: at least one alkoxycarbonylaminotriazine; at least one carbonic ester; at least one C1-C13-alkanol, which alkanol may further comprise up to two ether-bound oxygen atoms and may further comprise a substituent selected from the group consisting of C1-C4-alkyls and hydroxyls; and at least one alkali metal alkoxide or alkaline earth metal alkoxide; and subjecting the alkanolic reaction mixture to extraction with a polar extractant such that at least a portion of polar/ionic components present in the reaction mixture are removed, wherein the polar extractant is less than entirely miscible with an organic phase of the reaction mixture, to form an alkanolic phase comprising the at least one alkoxycarbonylaminotriazine and a polar phase comprising the polar extractant and the portion of polar/ionic components; and wherein the extraction is carried out with one or more selected from the group consisting of mixer/settler units, columns, centrifugal field separation extractors, and combinations thereof.

    摘要翻译: 方法包括:提供烷醇反应混合物,所述链烷醇反应混合物包含:至少一种烷氧基羰基氨基三嗪; 至少一个碳酸酯; 至少一种C1-C13-链烷醇,该链烷醇还可包含至多两个醚结合的氧原子,并且还可包含选自C 1 -C 4 - 烷基和羟基的取代基; 和至少一种碱金属醇盐或碱土金属醇盐; 并用极性萃取剂对链烷醇反应混合物进行萃取,使得除去反应混合物中存在的至少一部分极性/离子组分,其中极性萃取剂与反应混合物的有机相完全混溶,至 形成包含至少一种烷氧基羰基氨基三嗪和极性相的链烷醇相,所述极性相包含极性萃取剂和部分极性/离子组分; 并且其中所述萃取用选自混合器/沉降器单元,塔,离心场分离提取器及其组合的一种或多种进行。

    CYCLIC-AMINE-COMPRISNG ABSORPTION MEDIUM FOR REMOVING ACID GASES
    8.
    发明申请
    CYCLIC-AMINE-COMPRISNG ABSORPTION MEDIUM FOR REMOVING ACID GASES 审中-公开
    用于去除酸性气体的循环胺包装吸收介质

    公开(公告)号:US20140079613A1

    公开(公告)日:2014-03-20

    申请号:US14083967

    申请日:2013-11-19

    IPC分类号: B01D53/62

    摘要: An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO2 partial pressures; (ii) sufficiently rapid absorption rate at low CO2 partial pressures; (iii) stability toward oxygen; (iv) low vapor pressure for reducing solvent losses; and (v) low energy requirement for regeneration of the absorption medium.

    摘要翻译: 用于从流体流中除去酸性气体的吸收介质包含A)至少一种仅具有叔胺基和/或空间位阻仲胺基团的环胺化合物的水溶液,和B)至少一种具有至少一个 空间上不受阻碍的仲胺基团。 吸收介质包括例如A)1-羟乙基哌啶和/或三亚乙基二胺和B)哌嗪的水溶液。 吸收介质特别适用于从烟气中分离二氧化碳,并满足以下标准:(i)在低CO 2分压下的足够容量; (ii)在低CO 2分压下足够快的吸收速率; (iii)对氧的稳定性; (iv)用于降低溶剂损失的低蒸气压; 和(v)对吸收介质再生的能量需求低。