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61. 发明授权

US3969492A Recovery of elemental sulfur from sulfur dioxide bearing waste gases 失效
标题翻译：从二氧化硫废气中回收元素硫
公开(公告)号：US3969492A
公开(公告)日：1976-07-13
申请号：US410540
申请日：1973-10-29
申请人： Michael Witte , Manankumar S. Mehta
发明人： Michael Witte , Manankumar S. Mehta
IPC分类号： B01D53/50 , B01D53/77 , C01B17/05 , C01B17/04
CPC分类号： C01B17/05
摘要： Process for effecting the selective removal of sulfur dioxide values from industrial waste gases or the like and conversion thereof to elemental sulfur wherein a particularly constituted solution of mixed ammonium phosphates is exposed to absorbent contact with the sulfur dioxide bearing gas stream followed by recovery of the sulfur values therefrom and regeneration of the absorbent solution preparatory to reexposure thereof to the sulfur dioxide bearing gas stream.
摘要翻译：用于从工业废气等中选择性地除去二氧化硫值并将其转化为元素硫的方法，其中将特别构成的混合磷酸铵溶液暴露于与含二氧化硫的气流的吸收接触，然后回收硫值和再生吸附剂溶液，以便再次暴露于含二氧化硫的气流中。

62. 发明授权

US3966876A Gas purification 失效
标题翻译：气体净化
公开(公告)号：US3966876A
公开(公告)日：1976-06-29
申请号：US425715
申请日：1973-12-18
申请人： Frank Henry Singleton , Derek Vernon Gosden , Graham Woodhouse
发明人： Frank Henry Singleton , Derek Vernon Gosden , Graham Woodhouse
IPC分类号： B01D53/52 , C01B17/05 , C01B17/04
CPC分类号： B01D53/52 , C01B17/05
摘要： Gas purification processes for removing hydrogen sulphide (H.sub.2 S) from a foul gas stream, such as coal carbonization gases, involving a circulating liquid reagent in which the H.sub.2 S is absorbed and converted to sulphur which is recovered and the reagent regenerated and recycled exhibit progressive deterioration of the circulating reagent due to contamination by process by-products. The invention provides a method of decontaminating such a circulating reagent by subjecting a bled-off sidestream to high temperature hydrolysis, so producing gaseous products recyclable to the foul gas stream. Solid products may also be produced which may be recycled to the reagent, perhaps after high-temperature reduction.
摘要翻译：用于从恶臭气流（例如煤碳化气体）中除去硫化氢（H2S）的气体净化方法，其涉及循环液体试剂，其中H 2 S被吸收并转化成硫并被回收并且再生和再循环的试剂表现出逐渐恶化循环试剂由于过程副产物污染。本发明提供了一种通过使排出侧流进行高温水解来净化这种循环试剂的方法，从而产生可回收到恶臭气流的气态产物。还可以生产固体产物，其可以在高温还原后再循环到试剂中。

63. 发明授权

US3890431A SO{HD 2 {L removal from gases 失效
标题翻译： SO {HD 2 {L从气体中除去
公开(公告)号：US3890431A
公开(公告)日：1975-06-17
申请号：US40342073
申请日：1973-10-04
申请人： ETHYL CORP
发明人： BLITZER SIDNEY M
IPC分类号： B01D53/50 , C01B17/05 , C01B17/60 , B01D53/34
CPC分类号： C01B17/05 , B01D53/507 , C01B17/60
摘要： A process for recovering SO2 is disclosed. It involves reacting SO2 or a system containing SO2 with carboxymethoxy-succinic acid or a water soluble salt thereof to form an aqueous solution complex containing SO2 and carboxymethoxysuccinic acid or a water soluble salt thereof. The complex thus obtained may be treated to remove the sulfur and regenerate the carboxymethoxysuccinic acid or water soluble salt thereof providing a cyclic process.
摘要翻译：公开了一种回收SO2的方法。它涉及使SO 2或含有SO 2的体系与羧甲氧基 - 琥珀酸或其水溶性盐反应形成含有SO 2和羧甲氧基琥珀酸的水溶液络合物或其水溶性盐。可以处理如此获得的络合物以除去硫并再生羧基甲氧基琥珀酸或其水溶性盐，提供循环过程。

64. 发明授权

US3882222A Process for purifying a gas containing oxygenated sulfur compounds and recovering sulfur using ammonia liquors 失效
标题翻译：纯化含有氧化硫化合物的气体并使用氨液回收硫的方法
公开(公告)号：US3882222A
公开(公告)日：1975-05-06
申请号：US22883072
申请日：1972-02-24
申请人： INST FRANCAIS DU PETROLE
发明人： DESCHAMPS ANDRE , DEZAEL CLAUDE , FRANCKOWIACK SIGISMOND , RENAULT PHILIPPE
IPC分类号： B01D53/14 , B01D53/50 , C01B17/05 , C01B17/60 , C01B17/04
CPC分类号： B01D53/501 , C01B17/05
摘要： Sulfur dioxide is removed from a gas by contacting the latter with ammonia and water, concentrating and then vaporizing the resulting ammonium sulfite solution, passing the vapors through a heated liquid phase, recovering sulfur and ammonia and recycling ammonia.
摘要翻译：通过使气体与氨和水接触，从气体中除去二氧化硫，浓缩然后汽化所得的亚硫酸铵溶液，使蒸气通过加热的液相，回收硫和氨并再循环氨。

65. 发明授权

US3798316A Purification of claus plant tail gas by water washing 失效
标题翻译：通过水洗净化植物尾气
公开(公告)号：US3798316A
公开(公告)日：1974-03-19
申请号：US3798316D
申请日：1972-09-08
申请人： PARSONS R CO
发明人： BEAVON D
IPC分类号： C01B17/05 , C01B17/04
CPC分类号： C01B17/05
摘要： THE EFFLUENT FROM A CLAUS SULFUR PLANT IS PASSED TO A RELATIVELY HIGH TEMPERATURE REACTION-ABSORPTION ZONE WHERE, IN THE PRESENCE OF WATER AS THE ABSORPTION-REACTION MEDIUM, THERE IS FORMED SULFUR BY REACTION OF THE HYDROGEN SULFIDE AND SULFUR DIOXIDE AND OTHER SULFUROUS COMPOUNDS SUCH AS POLYTHIONIC AND SULFUROUS ACIDS. THE WATER CONTAINING SULFUR AND THE OTHER SULFUROUS COMPOUNDS IS RECYCLED BACK TO ONE OF THECLAUS CONVERSION STAGES WHERE THE FORMED SULFUROUS COMPOUNDS DISSOCIATE INTO SULFUR, HYDROGEN SULFIDE AND SULFUR DIOXIDE FOR CONVERSION TO ELEMENTAL SULFUR IN THE CLAUS REACTOR. THE RESIDUAL GAS STREAM IS THEN PASSED TO A SECOND ABSORPTION ZONE TO REMOVE RESIDUAL SULFUR DIOXIDE AND TO A FINAL WATER CONDENSATION ZONE BEFORE BEING VENTED TO THE ATMOSPHERE.

66. 发明授权

US3728441A Removal and recovery of sulfur from a gas stream containing hydrogen sulfide 失效
标题翻译：从含有硫化氢的气体流中除去和回收硫
公开(公告)号：US3728441A
公开(公告)日：1973-04-17
申请号：US3728441D
申请日：1971-07-19
申请人： UNIVERSAL OIL PROD CO
发明人： HAMBLIN R
IPC分类号： C01B17/05 , C01B17/04
CPC分类号： C01B17/05
摘要： H2S is removed from a gas stream and sulfur is produced by the steps of: (1) sequentially scrubbing the gas stream with a first recycle water stream containing NH4OH and then with a second recycle water stream which is sbustantially free of NH4OH to produce a treated gas stream which is reduced in H2S content and is substantially free of NH3 and a bottom water stream containing NH4HS; (2) catalytically treating the bottom water stream with an air stream to produce an effluent stream containing ammonium polysulfide; (3) treating the ammonium polysulfide-containing stream to recover sulfur and to produce a water stream which is substantially free of NH4OH and a water stream containing NH4OH; and, (4) separately recycling at least a portion of these last two streams to the scrubbing step.
摘要翻译：从气流中除去H 2 S，并通过以下步骤产生硫：（1）用含有NH 4 OH的第一再循环水流，然后用第二再循环水流顺次地洗涤气流，所述第二循环水流是非常不含NH 4 OH以产生处理过的气流中H2S含量降低且基本上不含NH 3和含有NH 4 HS的底部水流; （2）用空气流催化处理底部水流以产生含有多硫化铵的流出物流; （3）处理含多硫化铵的料流以回收硫并产生基本上不含NH 4 OH的水流和含有NH 4 OH的水流; 和（4）将这两个最后两个流的至少一部分分别回收到洗涤步骤。

67. 发明授权

US3672837A Process for treating two gas streams 失效
标题翻译：处理两个气体流的过程
公开(公告)号：US3672837A
公开(公告)日：1972-06-27
申请号：US3672837D
申请日：1970-10-01
申请人： UNIVERSAL OIL PROD CO
发明人： URBAN PETER
IPC分类号： B01D53/52 , C01B17/05 , C01B17/14
CPC分类号： C01B17/05 , B01D53/52
摘要： A FIRST GAS STREAM CONTAINING H2S AND A SECOND GAS STREAM CONTAINING SO2 ARE SIMULTANEOUSLY TREATED IN ORDER TO REMOVE SO2 AND H2S FROM THE RESPECTIVE STREAMS AND TO PRODUCE ELEMENTAL SULFUR BY THE STEPS OF: (A) SCRUBBING THE FIRST GAS STREAM WITH AN AQUEOUS SCRUBBING SOLUTION TO PRODUCE AN EFFLUENT STREAM CONTAINING A WATER-SOLUBLE SULFIDE COMPOUND; (B) CONTACTING THE SECOND GAS STREAM WITH AN AQUEOUS SCRUBBING SOLUTION AND WITH A REDUCNG AGENT AT REACTION CONDITIONS SELECTED TO RESULT IN AN EFFLUENT STREAM CONTAINING A WATER-SOLUBLE THIOSULFATE COMPOUND; (C) SUBJECTING A MIXTURE OF THE EFFLUENT STREAMS FROM STEP (A) AND (B) TO REDUCTION CONDITIONS SELECTED TO RESULT IN AN EFFLUENT STREAM CONTAINING A POLYSULFIDE COMPOUND; (D) DECOMPOSING THE RESULTING POLYSULFIDE COMPOUND TO FORM ELEMENTAL SULFUR, HYDROGEN SULFIDE, AND A REGENERATED SCRUBBING SOLUTION; (E) PASSING THE RESULTING HYDROGEN SULFIDE TO STEP (A); AND (F) RECIRCULATING THE REGENERATED SCRUBBING SOLUTION TO STEPS (A) AND (B).

68. 发明授权

US3672836A Treatment of an aqueous stream containing water-soluble inorganic sulfide compounds 失效
标题翻译：含有水溶性无机硫化合物的水溶液处理
公开(公告)号：US3672836A
公开(公告)日：1972-06-27
申请号：US3672836D
申请日：1970-12-21
申请人： UNIVERSAL OIL PROD CO
发明人： BROWN KENNETH M
IPC分类号： C01B17/05 , C02F1/72 , C02F11/08 , C01B17/06
CPC分类号： C02F11/08 , C01B17/05 , C02F1/725
摘要： AN AQUEOUS STREAM CONTAINING A WATER-SOLUBLE, INORGANIC SULFIDE COMPOUND IS TREATED BY CONTACTNG THE AQUEOUS STREAM AND OXYGEN, IN AN AMOUNT SELECTED TO REACT LESS THAN 0.5 MOLE OF O2 PER MOLE OF SULFIDE COMPOUND, WITH A FIRST OXIDIZING CATALYST AT OXIDIZING CONDITIONS, INCLUDING A RELATIVELY LOW PRESSURE AND TEMPERATURE, SELECTED TO FORM AN EFFLUENT STREAM CONTAINING A WATER-SOLUBLE POLYSULFIDE; AND THEREAFTER BY CONTACTING THE POLYSULFIDE-CONTAINING EFFLUENT STREAM AND OXYGEN IN AN AMOUNT LESS THAN THE AMOUNT UTILIZED IN THE FIRST STEP, WITH A SECOND OXIDIZING CATALYST AT OXIDIZING CONDITIONS, INCLUDING A TEMPERATURE GREATER THAN OR EQUAL TO THE MELTING POINT OF SULFUR AND A PRESSURE SUFFICIENT TO MAINTAIN AT LEAST A PORTIN OF THE EFFLUENT STREAM IN THE LIQUID PHASE, SELECTED TO PRODUCE LIQUID SULFUR AND A SUBSTANTIALLY SULFIDE-FREE TREATED WATER STREAM. KEY FEATURES OF THE DISCLOSED METHOD INVOLVE THE USE OF A FIRST CATALYTIC OXIDATION STEP WHICH IS RUN AT RELATIVELY LOW TEMPERATURES AND PRESSURES TO PRODUCE POLYSULFIDE, COUPLED WITH A SECOND CATALYTIC OXIDATION STEP WHICH IS RUN AT RELATIVELY HIGH TEMPERATURES AND PRESSURES TO SELECTIVELY OXIDIZE THE POLYSULFIDE TO ELEMENTAL SULFUR, THEREBY PREVENTING THE DEPOSITION OF ELEMENTAL SULFUR ON THE CATALYST USED DURING THESE OXIDATION STEPS, WHILE SIMULTANEOUSLY MINIMIZING THE AMOUNT OF OXYGEN WHICH MUST BE SUPPLIED AT THE RELATIVELY HIGH PRESSURES.

69. 发明授权

US3658477A Process for purifying a gas containing hydrogen sulfide with production of sulfur 失效
标题翻译：用于生产含硫硫化氢的气体净化工艺
公开(公告)号：US3658477A
公开(公告)日：1972-04-25
申请号：US3658477D
申请日：1968-09-05
申请人： INST FRANCAIS DU PETROLE
发明人： RENAULT PHILIPPE , GRUHIER HENRI
IPC分类号： B01D53/52 , C01B17/05 , C01B17/04
CPC分类号： C01B17/05 , B01D53/523
摘要： A process for purifying a gas containing hydrogen sulfide as the impurity, with the production of sulfur as a by-product which comprises contacting a gas containing hydrogen sulfide with a liquid phase containing at least one phosphoric acid ester and at least one alkanolamine, separating the purified gas free of hydrogen sulfide and treating the resulting solution containing hydrogen sulfide with a molecular oxygen-containing gas and separating sulfur therefrom.
摘要翻译：一种纯化含有硫化氢作为杂质的气体的方法，其中产生硫作为副产物，其包括使含有硫化氢的气体与含有至少一种磷酸酯和至少一种链烷醇胺的液相接触，将没有硫化氢的净化气体，并用含分子氧的气体处理含有硫化氢的所得溶液并从中分离出硫。

70. 发明授权

US3591335A Method of preparing ammonium thiosulfate from amine thiosulfates 失效
标题翻译：从氨基硫酸钠制备硫酸铵的方法
公开(公告)号：US3591335A
公开(公告)日：1971-07-06
申请号：US3591335D
申请日：1969-08-05
申请人： CONTINENTAL OIL CO
发明人： GRIMSLEY RALPH LEROY , EVERY RICHARD L
IPC分类号： C01B17/05 , C01B17/64
CPC分类号： C01B17/64 , C01B17/05
摘要： A PRIMARY AMINE IS REACTED WITH HYDROGEN SULFIDE AND SULFUR DIOXIDE IN THE PRESENCE OF A SOLVENT TO FORM THE AMINE THIOSULFATE AND SULFUR WHICH PRECIPITATES IN THE SOLVENT. THE THIOSULFATE CAN BE FREED OF SULFUR BY DISSOLVING THE SULFUR IN A SULFUR SOLVENT SUCH AS CARBON DISULFIDE OR BY DISSOLVING THE THIOSULFATE IN HOT WATER. THE AMINE THIOSULFATE, WITH OR WITHOUT REMOVAL OR SULFUR, IS REACTED WITH AMMONIA TO FORM THE AMMONIUM THIOSULFATE AND REGENERATE THE AMINE. THE AMMONIUM THIOSULFATE IS RECOVERED BY FILTRATION AND THE REGENERATED AMINE CYCLED BACK TO THE FIRST REACTION ZONE.

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