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公开(公告)号：US09169222B2
公开(公告)日：2015-10-27
申请号：US14238338
申请日：2012-08-24
IPC分类号： C07D295/088 , C07D241/04
CPC分类号： C07D295/088 , C07D241/04
摘要： The present invention relates to an improved process for making mono- and di-alkoxylated piperazine compounds especially dihydroxyethylpiperazine. The improvement comprises the addition of an acid to the piperazine compound prior to the addition of an alkylene oxide to a reactor wherein the alkoxylated piperazine compound is prepared. Said improvement reduces the concentration of undesirable glycol ether byproducts which contribute undesirable color and foaming of the alkoxylated piperazine compounds.
摘要翻译： 本发明涉及制备单 - 和二 - 烷氧基化哌嗪化合物，特别是二羟基乙基哌嗪的改进方法。 改进之处在于在将氧化烯加成到制备烷氧基化哌嗪化合物的反应器中之前向哌嗪化合物中加入酸。 所述改进降低了不希望的乙二醇醚副产物的浓度，这促成了烷氧基化哌嗪化合物的不希望有的颜色和起泡性。
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公开(公告)号：US20140256944A1
公开(公告)日：2014-09-11
申请号：US14238338
申请日：2012-08-24
IPC分类号： C07D295/088
CPC分类号： C07D295/088 , C07D241/04
摘要： The present invention relates to an improved process for making mono- and di-alkoxylated piperazine compounds especially dihydroxyethylpiperazine. The improvement comprises the addition of an acid to the piperazine compound prior to the addition of an alkylene oxide to a reactor wherein the alkoxylated piperazine compound is prepared. Said improvement reduces the concentration of undesirable glycol ether byproducts which contribute undesirable color and foaming of the alkoxylated piperazine compounds.
摘要翻译： 本发明涉及制备单 - 和二 - 烷氧基化哌嗪化合物，特别是二羟基乙基哌嗪的改进方法。 改进之处在于在将氧化烯加成到制备烷氧基化哌嗪化合物的反应器中之前向哌嗪化合物中加入酸。 所述改进降低了不希望的乙二醇醚副产物的浓度，这促成了烷氧基化哌嗪化合物的不希望有的颜色和起泡性。
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3.发明授权Aminopyridine derivatives for removal of hydrogen sulfide from a gas mixture 有权用于从气体混合物中除去硫化氢的氨基吡啶衍生物公开(公告)号：US09421492B2
公开(公告)日：2016-08-23
申请号：US14234506
申请日：2012-07-17
IPC分类号： B01D53/14 , C07D213/74 , B01D53/52
CPC分类号： B01D53/1468 , B01D53/1493 , B01D53/52 , B01D2252/103 , B01D2252/20415 , B01D2252/20426 , B01D2252/20431 , B01D2252/20447 , B01D2252/20457 , B01D2252/20484 , C07D213/74
摘要： The present invention relates to a novel class of aminopyridine derivatives with the general formula: wherein R1; R2, R3, and R4 are each independently hydrogen, an alkyl group, —(O—CH2—CH2)n-OH wherein n is an integer from 0 to 8, —CH2—(O—CH2—CH2)n-OH wherein n is an integer from 0 to 8, an hydroxyalkyl group, an aminoalkyl group where the nitrogen can be part of a 5 or 6 ring membered cycle, an alkylene group containing quaternary ammonium, a carboxylic acid and/or a salt thereof, or a sulphonic acid and/or a salt thereof, preferably R1; R2, R3, and R4 are each hydrogen. The compounds are useful for removal of hydrogen sulfide and other impurities from fluid streams containing hydrogen sulfide, including selective removal from such streams which also contain carbon dioxide. Examples of the fluid stream include a gas stream, for example natural gas, synthesis gas, tail gas, refinery gas, or from liquid streams such as liquid or liquefied hydrocarbons, for example Liquefied Petroleum Gas or Natural Gas Liquids.
摘要翻译： 本发明涉及新一类具有以下通式的氨基吡啶衍生物：其中R1; R 2，R 3和R 4各自独立地为氢，烷基， - （O-CH 2 -CH 2）n -OH，其中n为0至8的整数，-CH 2 - （O-CH 2 -CH 2）n -OH n为0〜8的整数，羟基烷基，氮原子可以为5或6元环的一部分的氨基烷基，含有季铵的亚烷基，羧酸和/或其盐，或 磺酸和/或其盐，优选R 1; R2，R3和R4各自为氢。 该化合物可用于从含有硫化氢的流体流中除去硫化氢和其它杂质，包括从还含有二氧化碳的流中选择性除去。 流体流的实例包括气流，例如天然气，合成气，尾气，精炼气体，或液体流如液体或液化烃，例如液化石油气或天然气液体。
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4.发明申请FORMATE BASED HEAT STABLE SALT MITIGATION IN PHYSICAL SOLVENT ACID GAS ABSORPTION PROCESSES 有权基于物理溶剂的气体吸收过程中的基于热稳定的盐分公开(公告)号：US20140200373A1
公开(公告)日：2014-07-17
申请号：US14239636
申请日：2012-08-24
IPC分类号： C07C41/34
CPC分类号： C07C41/34 , B01D53/1425 , B01D53/1456 , B01D2252/2021 , B01D2252/2025 , B01D2252/2026 , B01D2252/20452 , B01D2252/20463 , B01D2252/20468 , B01D2256/245 , B01D2257/302 , B01D2257/304 , B01D2257/306 , B01D2257/308 , B01D2257/406 , B01D2257/408 , B01D2257/504 , B01D2258/02 , Y02C10/06
摘要： There is described a process for reducing the concentration of formate based heat stable salts formed in a physical solvent acid gas absorption process (12) wherein acid gas contaminants such as hydrogen sulfide and carbon dioxide are removed from gas mixtures (30) which include these contaminants. The process comprises the step of contacting the physical solvent containing formate based heat stable salts (46) with a metallic and/or organometallic catalyst (52), preferably the catalyst comprises palladium, zinc, platinum, nickel, or rhodium, and/or salts thereof and/or oxides thereof. The process is particularly suited for physical solvents such as refrigerated methanol, dialkyl ethers of polyethylene glycols, N-methyl-2-pyrrolidones, propylene carbonate, blends of N-acetylmorpholine and N-formylmor-pholine, 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone, and the like and particularly gas mixtures containing ammonia as a contaminant.
摘要翻译： 描述了一种降低在物理溶剂酸性气体吸收过程（12）中形成的甲酸酯基热稳定盐的浓度的方法，其中从包括这些污染物的气体混合物（30）中除去诸如硫化氢和二氧化碳的酸性气体污染物 。 该方法包括使含有甲酸盐的热稳定盐（46）的物理溶剂与金属和/或有机金属催化剂（52）接触的步骤，优选地，催化剂包括钯，锌，铂，镍或铑，和/或 和/或其氧化物。 该方法特别适用于物理溶剂如冷冻甲醇，聚乙二醇的二烷基醚，N-甲基-2-吡咯烷酮，碳酸亚丙酯，N-乙酰基吗啉和N-甲酰吗啉的共混物，1,3-二甲基-3， 4,5,6-四氢-2（1H） - 嘧啶酮等，特别是含有氨作为污染物的气体混合物。
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5.发明授权Formate based heat stable salt mitigation in physical solvent acid gas absorption processes 有权物质溶剂酸性气体吸收过程中基于甲酸的热稳定盐减轻公开(公告)号：US08952206B2
公开(公告)日：2015-02-10
申请号：US14239636
申请日：2012-08-24
CPC分类号： C07C41/34 , B01D53/1425 , B01D53/1456 , B01D2252/2021 , B01D2252/2025 , B01D2252/2026 , B01D2252/20452 , B01D2252/20463 , B01D2252/20468 , B01D2256/245 , B01D2257/302 , B01D2257/304 , B01D2257/306 , B01D2257/308 , B01D2257/406 , B01D2257/408 , B01D2257/504 , B01D2258/02 , Y02C10/06
摘要： There is described a process for reducing the concentration of formate based heat stable salts formed in a physical solvent acid gas absorption process (12) wherein acid gas contaminants such as hydrogen sulfide and carbon dioxide are removed from gas mixtures (30) which include these contaminants. The process comprises the step of contacting the physical solvent containing formate based heat stable salts (46) with a metallic and/or organometallic catalyst (52), preferably the catalyst comprises palladium, zinc, platinum, nickel, or rhodium, and/or salts thereof and/or oxides thereof. The process is particularly suited for physical solvents such as refrigerated methanol, dialkyl ethers of polyethylene glycols, N-methyl-2-pyrrolidones, propylene carbonate, blends of N-acetylmorpholine and N-formylmorpholine, 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone, and the like and particularly gas mixtures containing ammonia as a contaminant.
摘要翻译： 描述了一种降低在物理溶剂酸性气体吸收过程（12）中形成的甲酸酯基热稳定盐的浓度的方法，其中从包括这些污染物的气体混合物（30）中除去诸如硫化氢和二氧化碳的酸性气体污染物 。 该方法包括使含有甲酸盐的热稳定盐（46）的物理溶剂与金属和/或有机金属催化剂（52）接触的步骤，优选地，催化剂包括钯，锌，铂，镍或铑，和/或 和/或其氧化物。 该方法特别适用于物理溶剂如冷冻甲醇，聚乙二醇二烷基醚，N-甲基-2-吡咯烷酮，碳酸亚丙酯，N-乙酰基吗啉和N-甲酰基吗啉的共混物，1,3-二甲基-3,4， 特别是包含氨作为污染物的气体混合物。
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6.发明申请AMINOPYRIDINE DERIVATIVES FOR REMOVAL OF HYDROGEN SULFIDE FROM A GAS MIXTURE 有权用于从气体混合物中除去硫化氢的氨基吡啶衍生物公开(公告)号：US20140234191A1
公开(公告)日：2014-08-21
申请号：US14234506
申请日：2012-07-17
CPC分类号： B01D53/1468 , B01D53/1493 , B01D53/52 , B01D2252/103 , B01D2252/20415 , B01D2252/20426 , B01D2252/20431 , B01D2252/20447 , B01D2252/20457 , B01D2252/20484 , C07D213/74
摘要： The present invention relates to a novel class of aminopyridine derivatives with the general formula: wherein R1; R2, R3, and R4 are each independently hydrogen, an alkyl group, —(O—CH2—CH2)n-OH wherein n is an integer from 0 to 8, —CH2—(O—CH2—CH2)n-OH wherein n is an integer from 0 to 8, an hydroxyalkyl group, an aminoalkyl group where the nitrogen can be part of a 5 or 6 ring membered cycle, an alkylene group containing quaternary ammonium, a carboxylic acid and/or a salt thereof, or a sulphonic acid and/or a salt thereof, preferably R1; R2, R3, and R4 are each hydrogen. The compounds are useful for removal of hydrogen sulfide and other impurities from fluid streams containing hydrogen sulfide, including selective removal from such streams which also contain carbon dioxide. Examples of the fluid stream include a gas stream, for example natural gas, synthesis gas, tail gas, refinery gas, or from liquid streams such as liquid or liquefied hydrocarbons, for example Liquefied Petroleum Gas or Natural Gas Liquids.
摘要翻译： 本发明涉及新一类具有以下通式的氨基吡啶衍生物：其中R1; R 2，R 3和R 4各自独立地为氢，烷基， - （O-CH 2 -CH 2）n -OH，其中n为0至8的整数，-CH 2 - （O-CH 2 -CH 2）n -OH n为0〜8的整数，羟基烷基，氮原子可以为5或6元环的一部分的氨基烷基，含有季铵的亚烷基，羧酸和/或其盐，或 磺酸和/或其盐，优选R 1; R2，R3和R4各自为氢。 该化合物可用于从含有硫化氢的流体流中除去硫化氢和其它杂质，包括从还含有二氧化碳的流中选择性除去。 流体流的实例包括气流，例如天然气，合成气，尾气，精炼气体，或液体流如液体或液化烃，例如液化石油气或天然气液体。
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