公开(公告)号：US5746926A

公开(公告)日：1998-05-05

申请号：US632604

申请日：1996-04-15

申请人： David S. Ross ,  Indira Jayaweera ,  Roald N. Leif

发明人： David S. Ross ,  Indira Jayaweera ,  Roald N. Leif

IPC分类号： A62D3/00 ,  A62D3/20 ,  A62D3/34 ,  A62D3/35 ,  A62D3/36 ,  A62D3/38 ,  A62D101/02 ,  A62D101/04 ,  A62D101/06 ,  A62D101/22 ,  A62D101/24 ,  A62D101/26 ,  A62D101/28 ,  A62D101/40 ,  B01J3/00 ,  B01J19/00 ,  B09B3/00 ,  C02F1/72 ,  C02F11/08

CPC分类号： A62D3/20 ,  C02F11/086 ,  A62D2101/22 ,  A62D2101/28 ,  C02F1/722 ,  C02F2101/36 ,  Y10S210/908 ,  Y10S210/909 ,  Y10S210/915

摘要： This invention relates to a process for the decomposition of material selected from halogenated organic compounds, to compounds which are environmentally acceptable, or are amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or an aqueous slurry of material into a reaction zone capable of withstanding the temperatures and pressures of decomposition of the material; (b)contacting the material in the reaction zone with aqueous sodium carbonate as a reactant in an amount effective to decompose the material under hydrothermal oxidation conditions of between about 300.degree. and 400.degree. C. and a pressure of between about 20 and 400 atmospheres for between 0.01 and 120 min wherein the sodium carbonate at the reaction conditions is present at about 10% or less as a water soluble salt as compared to the solubility of the salt at ambient conditions, wherein the process occurs in the presence of a gaseous oxidant wherein said oxidant is present in an amount of between about 0.01 and 50% by weight of the material; (c) producing about 99% or greater of the decomposition of the material, or 99% or greater conversion of the material to compounds which are environmentally acceptable or to compounds which are amendable to further degradation; and (d) optionally degrading further the compounds produced in step (c) by reaction to environmentally acceptable products. Preferably, the specific reactant is sodium carbonate and the oxidant is oxygen or air. Preferably, the halogenated organic compound is selected from polychlorobiphenyl, polybromobiphenyl or chlorobenzodioxin compounds.

摘要翻译： 本发明涉及一种将选自卤代有机化合物的材料分解成环境可接受的化合物或常规处理系统进一步降解以生产环境可接受的产品的方法，该方法包括：（a）输送水 溶液或材料的水性浆料进入能够承受材料分解的温度和压力的反应区; （b）将反应区中的材料与碳酸钠水溶液作为反应物接触，其量为有效地在约300-400℃的水热氧化条件下分解该材料，并且压力在约20-400大气压之间，以便 在0.01和120分钟之间，其中与在环境条件下盐的溶解度相比，反应条件下的碳酸钠作为水溶性盐的存在量为约10％或更少，其中该方法在气态氧化剂存在下进行，其中 所述氧化剂的存在量为所述材料的约0.01至50重量％; （c）产生约99％或更多的材料分解，或99％或更多的材料转化为环境可接受的化合物或可修饰为进一步降解的化合物; 和（d）通过与环境可接受的产物反应，任选进一步降解步骤（c）中产生的化合物。 优选地，特定反应物是碳酸钠，氧化剂是氧气或空气。 优选地，卤代有机化合物选自聚氯联苯，聚溴联苯或氯代二苯并菲化合物。

公开(公告)号：US5709800A

公开(公告)日：1998-01-20

申请号：US652920

申请日：1996-01-16

申请人： David S. Ross ,  Indira Jayaweera

发明人： David S. Ross ,  Indira Jayaweera

IPC分类号： A62D3/00 ,  A62D3/20 ,  A62D3/35 ,  A62D101/02 ,  A62D101/04 ,  A62D101/06 ,  A62D101/20 ,  A62D101/26 ,  A62D101/28 ,  B09B3/00 ,  C02F1/02 ,  C02F1/72 ,  C02F11/08

CPC分类号： A62D3/20 ,  C02F1/025 ,  C02F1/725 ,  C02F11/08 ,  A62D2101/02 ,  A62D2101/04 ,  A62D2101/06 ,  A62D2101/26 ,  A62D2101/28 ,  A62D2203/10

摘要： The present invention relates to a process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds to species which are environmentally acceptable, or are amendable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or slurry of the waste material into a reaction zone capable of withstanding the temperatures and pressures of hydrothermal decomposition; (b) reacting the waste material in the reaction zone with an aqueous composition comprising catalyst selected from silica or one or more alkali metal silicates, borates, phosphates, biphosphates, or trisubstituted-phosphates, or comprising as promoting reagent independently selected from one or more alkali metal nitrites, alkaline earth metal nitrites or combinations thereof at between 200.degree. C. and 500.degree. C. and at a pressure between 10 and 400 atmospheres for between about 0.01 and 10 minutes; (c) producing compounds which are environmentally acceptable or are amenable to further degradation by conventional disposal systems; and (d) optionally degrading further the compounds of step (c) by reaction in a conventional disposal system such as biological sewage treatment. The waste includes dairy process waste, military waste, ordnance waste, chemical process waste, agricultural waste and the like.

摘要翻译： 本发明涉及一种处理废物或将水热不稳定化学基团和化合物转化为可通过常规处理系统进一步降解以生产环境可接受产品的环境可接受或可修改的物质的方法，该方法包括：（ a）将废料的水溶液或浆料输送到能够承受水热分解温度和压力的反应区; （b）使反应区中的废料与包含选自二氧化硅或一种或多种碱金属硅酸盐，硼酸盐，磷酸盐，二磷酸盐或三取代磷酸盐的催化剂的含水组合物反应，或者作为独立地选自一种或多种 碱金属亚硝酸盐，碱土金属亚硝酸盐或其组合在200℃至500℃之间和在10和400大气压之间约0.01至10分钟之间的压力; （c）生产环境可接受或适于通过常规处理系统进一步降解的化合物; 和（d）通过常规处理系统如生物污水处理中的反应任选地降解步骤（c）的化合物。 废物包括乳品加工废物，军事废物，军火废物，化学工艺废物，农业废物等。

公开(公告)号：US5837149A

公开(公告)日：1998-11-17

申请号：US621746

申请日：1996-03-22

申请人： David S. Ross ,  Indira Jayaweera ,  Roald N. Leif

发明人： David S. Ross ,  Indira Jayaweera ,  Roald N. Leif

IPC分类号： A62D3/00 ,  A62D3/20 ,  A62D3/34 ,  A62D3/35 ,  A62D3/36 ,  A62D3/38 ,  A62D101/02 ,  A62D101/04 ,  A62D101/06 ,  A62D101/22 ,  A62D101/24 ,  A62D101/26 ,  A62D101/28 ,  A62D101/40 ,  C02F1/72 ,  C02F11/08

CPC分类号： A62D3/20 ,  C02F11/086 ,  A62D2101/22 ,  A62D2101/28 ,  C02F1/722 ,  C02F2101/36 ,  Y10S210/909 ,  Y10S210/915

摘要： This invention relates to a process for the decomposition of material selected from the group consisting of organic compounds, inorganic compounds, or combinations thereof to compounds which are environmentally acceptable, or are amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or an aqueous slurry of material into a reaction zone capable of withstanding the temperatures and pressures of decomposition of the material; (b) contacting the material in the reaction zone with aqueous sodium carbonate as a reactant in an amount effective to decompose the material under hot water or supercritical water oxidation conditions of between about 300.degree. and 600.degree. C. and a pressure of between about 20 and 400 atmospheres for between 0.1 and 120 min, wherein the sodium carbonate at the reaction conditions is present at about 10% or less as a water soluble salt as compared to the solubility of the salt at ambient conditions, wherein the process occurs in the presence of a gaseous oxidant present in an amount of between about 0.1 and 50% by weight of the material; (c) producing about 99% or greater of the decomposition of the material, or 99% or greater conversion of the material to compounds which are environmentally acceptable or to compounds which are amendable to further degradation; and (d) optionally degrading further the compounds produced in step (c) by reaction to environmentally acceptable products. Preferably, the specific reactant is sodium carbonate and the oxidant is oxygen or air.

摘要翻译： 本发明涉及将选自有机化合物，无机化合物或其组合的材料分解成环境可接受的化合物或通过常规处理系统进一步降解以生产环境可接受的产物的方法，其中 方法包括：（a）将材料的水溶液或水性浆料输送到能够承受材料分解的温度和压力的反应区; （b）使反应区中的材料与碳酸钠水溶液作为反应物接触，其量可以有效地在约300℃至600℃的热水或超临界水氧化条件下分解该材料，压力为约20℃ 和400个大气压在0.1和120分钟之间，其中在反应条件下的碳酸钠与盐在环境条件下的溶解度相比以约10％或更低的水溶性盐存在，其中该方法在存在下发生 的气态氧化剂，其量为所述材料的约0.1至50重量％; （c）产生约99％或更多的材料分解，或99％或更多的材料转化为环境可接受的化合物或可修饰为进一步降解的化合物; 和（d）通过与环境可接受的产物反应，任选进一步降解步骤（c）中产生的化合物。 优选地，特定反应物是碳酸钠，氧化剂是氧气或空气。