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1.发明授权
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2.发明公开Combustion method for improved endothermic dissociation of contaminated acids 失效一种用于具有改进的污染酸裂解燃烧过程。
公开(公告)号：EP0471368A1
公开(公告)日：1992-02-19
申请号：EP91113689.3
申请日：1991-08-14
IPC分类号： C01B17/58
CPC分类号： C01B17/503 , C01B17/74 , F23C9/006 , F23G7/008 , Y02E20/12
摘要： A method for endothermically dissociating contaminated acid wherein high velocity oxidant causes a recirculation flow within a combustion zone and combusts with fuel to release heat and wherein the heat is efficiently applied by the internal recirculation to the acid for endothermic dissociation of the acid.
摘要翻译： 一种用于吸热离解污染酸worin高速氧化剂方法使燃烧区中的再循环流并与燃料释放热量和worin的热量被有效地被内部再循环到酸的酸的离解吸热的应用燃烧。
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3.发明授权
公开(公告)号：EP0282880B1
公开(公告)日：1990-09-12
申请号：EP88103654.5
申请日：1988-03-09
申请人： Grillo-Werke AG
CPC分类号： F23G7/00 , A62D3/38 , A62D2101/22 , A62D2101/28
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4.发明公开Recovery of a sulphur dioxide-containing gas mixture from a sulphate-containing waste material 失效Rückgewinnungeiner Schwefeldioxid enthaltenden Gasmischung，ausgehend von Sulfathaltigen Abfallprodukten。
公开(公告)号：EP0244206A2
公开(公告)日：1987-11-04
申请号：EP87303760.0
申请日：1987-04-28
申请人： The BOC Group plc
IPC分类号： C01B17/58
CPC分类号： C01B17/507 , C01B17/58
摘要： A gas mixture including sulphur dioxide is recovered from sulphate waste material by burning a fuel to form a flame zone l4, introducing sulphate waste material into the zone and introducing pure oxygen or other oxygen-rich gas into the flame zone l4 to support combustion of the fuel and to generate a flame of sufficient temperature to crack solid sulphate waste material and thereby liberate sulphur dioxide therefrom. Solids exiting the flame zone are separated from the gaseous combustion products. The sulphate waste material may be taken from a plant for making titanium dioxide pigment by the sulphate route.
摘要翻译： 包含二氧化硫的气体混合物通过燃烧燃料形成火焰区14从硫酸盐废物中回收，将硫酸盐废料引入该区域，并将纯氧或其它富氧气体引入火焰区域14以支持燃烧 燃料并产生足够温度的火焰以破裂固体硫酸盐废料，从而释放二氧化硫。 离开火焰区的固体与气态燃烧产物分离。 硫酸盐废料可以从用于通过硫酸盐路线制备二氧化钛颜料的设备中取出。
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公开(公告)号：EP1979071A2
公开(公告)日：2008-10-15
申请号：EP06829569.0
申请日：2006-12-13
申请人： Outotec Oyj
CPC分类号： C01B17/56 , B01D53/18 , B01D2251/506 , C22B7/02 , Y02P10/212
摘要： A quench system for cooling and/or cleaning metallurgical gases which are guided cocurrently with an acid-containing liquid, in particular sulfuric acid, includes a gas inlet (51) through which the gases are supplied from the top, an annular channel (55) extending about the inner circumference of an upper Venturi portion (52), over whose inner overflow wall (57) the acid-containing liquid flows over into the upper Venturi portion (52), and lateral nozzles (58) provided below the annular channel (55), through which additional acid-containing liquid is introduced. To obtain a clear separation between wall portions of the Venturi portion exposed to dry/hot or wet/cold conditions, the inside diameter (D1 ) of the upper Venturi portion (52) is greater than the inside diameter (D2) of the gas inlet (51), in accordance with the present invention.
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公开(公告)号：EP1373136A1
公开(公告)日：2004-01-02
申请号：EP02724245.2
申请日：2002-03-18
发明人： GROSS, Gerhard , LAILACH, Günter
IPC分类号： C01B17/765 , C01B17/58
CPC分类号： C01B17/7655
摘要： A conventional method for the regeneration of sulphuric acid from sulphur-containing residual materials comprises the following method steps: thermal cleavage of the residual material in a cleavage reactor by combustion of one or several energy sources with an oxidising agent in the form of oxygen to form process gas with a given sulphur dioxide content, generation of contact gas by mixing of the process gas with oxygen-containing gas, introduction of the contact gas into a contact kettle in a sulphuric acid contact plant and catalytic reaction of the sulphur dioxide contained in the contact gas to give sulphuric acid and/or oleum. According to the invention, an economical method, starting from the above, can be provided, permitting an increase in the turnover of sulphur dioxide of a contact plant, in particular permitting the design capacity of the contact system for an existing contact system for the production of sulphuric acid and/or oleum to be exceeded without any disadvantages, whereby at least a first partial stream of the contact gas is introduced in to a pre-contact vessel before introduction into the contact vessel, in which sulphur dioxide is oxidised to give an SO3-containing reaction gas and the SO3-containing reaction gas is introduced into an intermediate absorber, in which SO3 is absorbed and finally introduced into the contact vessel in the form of an SO2-depleted gas.
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公开(公告)号：EP0616672B1
公开(公告)日：1997-04-23
申请号：EP93900281.2
申请日：1992-12-16
申请人： IMPERIAL CHEMICAL INDUSTRIES PLC , L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
发明人： MOLE, James The Heath , QUEILLE, Philippe L'Air Liquide, , GARRIDO, Guillermo Oxigeno do Brasil
CPC分类号： F23G7/008 , C01B17/58 , Y02E20/12 , Y02E20/344 , Y02P20/129
摘要： Liquid waste material, particularly material containing sulphuric acid, may be combusted using an oxygen-rich material by a process in which: (i) a primary oxidant and fuel issuing from a burner are combusted in a furnace, the proportion of primary oxidant to fuel being such that there is insufficient oxygen to combust the fuel completely, (ii) introducing into the furnace the liquid waste material in atomised form around the burner, (iii) introducing into the furnace spaced from the burner a secondary oxidant which contains sufficient oxygen to combust completely the fuel not combusted by the primary oxidant the direction in which each of the primary oxidant, fuel and liquid waste material is introduced being such that the substances flow in substantially the same direction, the rate at which the primary oxidant, fuel, liquid waste material and secondary oxidant are introduced being such that a plug flow of substances through the furnace is created.
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8.发明公开REGENERATION OF SULFURIC ACID FROM SULFATE BY-PRODUCTS OF 2-HYDROXY-4-(METHYLTHIO)BUTYRIC ACID MANUFACTURE 失效硫酸从硫酸再生的副产物2-羟基-4-（甲硫基）丁酸的生产
公开(公告)号：EP0705060A4
公开(公告)日：1997-01-22
申请号：EP93924374
申请日：1993-10-21
申请人： NOVUS INT INC
IPC分类号： C01B17/76 , A63B23/04 , A63B69/18 , C01B17/58 , C01B17/74 , C01B17/92 , C07C319/20 , C07C323/52 , A01N37/02
CPC分类号： C01B17/745 , C01B17/585 , C07C319/20 , Y02P20/129 , C07C323/52
摘要： A process for the preparation of sulfuric acid by burning the oxidizable components of a feed solution obtained as a by-product of the preparation of 2-hydroxy-4-(methylthio)butyric acid ('HMBA') by hydrolysis of 2-hydroxy-4-(methylthio)butyronitrile ('HMBN'). A combustion gas containing sulfur dioxide is produced. The combustion gas is cooled to condense water and sulfuric acid, then mixed with a source of oxygen to produce a feed gas containing at least about 0.9 moles oxygen per mole sulfur dioxide. The feed gas is passed over a catalyst for the conversion of sulfur dioxide to sulfur trioxide at a temperature effective for the conversion. Sulfur trioxide may be absorbed in concentrated sulfuric acid to generate additional sulfuric acid which may be recycled and used for hydrolysis of HMBN in the preparation of HMBA. The process may be operated as a closed system in which ammonium bisulfate by-product of HMBA manufacture is used as the source of sulfur for the generation of sulfuric acid used in the hydrolysis of HMBN to HMBA.
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公开(公告)号：EP0561521A1
公开(公告)日：1993-09-22
申请号：EP93301530.7
申请日：1993-03-01
申请人： The BOC Group plc
CPC分类号： C01B17/0404 , C01B17/0473 , C01B17/58
摘要： Waste sulphuric acid is dried in a drier 10 and the resulting dried acid is decomposed in a reactor 12 by contact with a volume of liquid sulphur through which oxygen is passed. The decomposition products of the sulphuric acid initially comprise water vapour and sulphur trioxide. The sulphur trioxide is reduced to sulphur dioxide by sulphur vapour. The resulting mixture comprising sulphur, sulphur dioxide and water vapour has sulphur condensed therefrom. The sulphur dioxide content of the gas mixture is reacted with hydrogen sulphide in a Claus plant 14 to form a sulphur product. Alternatively the mixture containing sulphur vapour can be reacted with a hydrocarbon such as methane to form hydrogen sulphide and carbon disulphide which in turn are reacted with the sulphur dioxide to form the sulphur product.
摘要翻译： 废硫酸在干燥器10中干燥，所得干燥的酸在反应器12中通过与一定体积的通过氧气的液体硫接触而分解。 硫酸的分解产物最初包含水蒸汽和三氧化硫。 硫氧化物将三氧化硫还原成二氧化硫。 所得到的包含硫，二氧化硫和水蒸汽的混合物具有从其中冷凝的硫。 气体混合物中的二氧化硫含量与克劳斯装置14中的硫化氢反应形成硫产物。 或者，含有硫蒸气的混合物可以与诸如甲烷的烃反应形成硫化氢和二硫化碳，二硫化碳又与二氧化硫反应形成硫产物。
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10.发明公开
公开(公告)号：EP0071078A1
公开(公告)日：1983-02-09
申请号：EP82106281.7
申请日：1982-07-14
申请人： BAYER AG
CPC分类号： C01B17/54
摘要： Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Schwefeldioxid aus Schwefel und Sauerstoff unter gleichzeitiger Spaltung von verdünnter und/oder verunreinigter Schwefelsäure, bei dem die Brauchschwefelsäure bei der Verbrennung von Schwefel in Sauerstoff oder in mit Sauerstoff angereicherter Luft in einer solchen Menge zudosiert wird, daß bei der Verbrennung eine Temperatur von 800-1300°C nicht überschritten wird.
摘要翻译： 一种从硫和氧制备二氧化硫的方法，同时切割稀释和/或污染的硫酸，其中在氧气中或在富含氧气的空气中燃烧硫中的废硫酸，其量为这样的量 在燃烧过程中不超过800-1300℃的温度。
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