公开(公告)号：US3939256A

公开(公告)日：1976-02-17

申请号：US233352

申请日：1972-03-09

Applicant: William G. Kazel

Inventor： William G. Kazel

IPC: C01B17/027 ,  C01B17/033 ,  C01B17/14

CPC classification number: C01B17/033

Abstract: A method for the separation and recovery of elemental sulfur from mixtures of foreign material and sulfur which comprises washing the foreign material and sulfur mixture to remove impurities which are deleterious to coalescence of the sulfur particles followed by adding as a cleansing and coalescence agent an alkali metal hydroxide or carbonate, heating the mixture to a temperature above the melting point of sulfur for one hour to coalesce the sulfur particles, and separating the coalesced sulfur from the foreign material.

Abstract translation: 一种用于从异物和硫的混合物中分离和回收元素硫的方法，其包括洗涤异物和硫混合物以除去对硫颗粒的聚结有害的杂质，然后加入作为清洁和聚结剂的碱金属 氢氧化物或碳酸盐，将混合物加热至高于硫的熔点1小时，使硫颗粒聚结，并将聚结的硫与异物分离。

公开(公告)号：US4496534A

公开(公告)日：1985-01-29

申请号：US447227

申请日：1982-12-06

Applicant: Dennis D. Delaney ,  Donald M. Fenton

Inventor： Dennis D. Delaney ,  Donald M. Fenton

IPC: B01D53/14 ,  C01B17/05 ,  B01D53/34 ,  C01B17/04 ,  C01B17/14

CPC classification number: B01D53/1468 ,  B01D53/1412 ,  B01D53/1418 ,  B01D53/1493 ,  C01B17/05

Abstract: A method is provided for reconditioning a hydrogen sulfide removal system, such as a Stretford process system in which elemental sulfur is formed, after the system has become contaminated with sulfur-feeding bacteria to an extent that operation thereof is substantially impaired. The method includes adding a bactericide to the washing solution employed in the system to destroy the bacteria and adding a surfactant to the solution to remove dead bacteria from the surfaces of particulate sulfur formed in the system so that the particles can agglomerate in the intended manner to enable sulfur removal from the solution.

Abstract translation: 提供了一种方法，用于在系统已经被供硫细菌污染到其操作受到显着损害的程度之后，修复硫化氢去除系统，例如形成元素硫的Stretford处理系统。 该方法包括向系统中使用的洗涤溶液中加入杀菌剂以破坏细菌并向该溶液中加入表面活性剂以从系统中形成的颗粒硫的表面除去死细菌，使得颗粒以预期的方式附聚到 从溶液中除去硫。

公开(公告)号：US3578418A

公开(公告)日：1971-05-11

申请号：US3578418D

申请日：1968-05-27

Applicant: GRACE W R & CO

Inventor： CANTRELL ROBERT R ,  SWANSON VERNON F

IPC: C01B17/033 ,  C01B17/08 ,  B01D9/02 ,  C01B17/14

CPC classification number: C01B17/033

Abstract: A SOLVENT-EXTRACTION PROCESS FOR RECOVERING SULFUR FROM SULFUR-BEARING ORES NOT AMENABLE TO TREATMENT BY THE FRASCH HOT-WATER PROCESS. SULFUR-BEARING ORE IS DRIED AND CONTACTED WITH A SOLVENT, SUCH AS TETRACHLOROETHYLENE, AT A TEMPERATURE ABOVE THE MELTING OF THE SULFUR. THE GANGUE IS SEPARATED FROM THE LOADED SOLVENT BY FILTRATION, AND THE LOADED SOLVENT IS COOLED TO A TEMPERATURE TO PERMIT CRYSTALLIZATION OF THE SULFUR. THE SOLID SULFUR IS SEPARATED FROM THE SOLVENT AND THE SULFUR CAKE IS PASSED THROUGH A COUNTERCURRENT WASHING SYSTEM TO REMOVE RESIDUAL SOLVENT AND TO PROVIDE SULFUR IN ESSENTIALLY PURE FORM.

公开(公告)号：US4393037A

公开(公告)日：1983-07-12

申请号：US331070

申请日：1981-12-16

Applicant: Dennis D. Delaney ,  Donald M. Fenton

Inventor： Dennis D. Delaney ,  Donald M. Fenton

IPC: B01D53/14 ,  C01B17/05 ,  B01D53/34 ,  C01B17/04 ,  C01B17/14

CPC classification number: C01B17/05 ,  B01D53/1412 ,  B01D53/1418 ,  B01D53/1468 ,  B01D53/1493

Abstract: A method is provided for reconditioning a hydrogen sulfide removal system, such as a Stretford process system in which elemental sulfur is formed, after the system has become contaminated with sulfur-feeding bacteria to an extent that operation thereof is substantially impaired. The method includes adding a bactericide to the washing solution employed in the system to destroy the bacteria and adding a non-ionic surfactant to the solution to remove dead bacteria from the surfaces of particulate sulfur formed in the system so that the particles can agglomerate in the intended manner to enable sulfur removal from the solution.

Abstract translation: 提供了一种方法，用于在系统已经被供硫细菌污染到其操作受到显着损害的程度之后，修复硫化氢去除系统，例如形成元素硫的Stretford处理系统。 该方法包括向系统中使用的洗涤溶液中加入杀菌剂以破坏细菌并向该溶液中加入非离子表面活性剂以从系统中形成的颗粒状硫的表面除去死细菌，使得颗粒在 预期的方式以使得从溶液中除去硫。

公开(公告)号：US3832145A

公开(公告)日：1974-08-27

申请号：US20790971

申请日：1971-12-14

Applicant: VENNARD & ELLITHORPE LTD

Inventor： ELLITHORPE E ,  FLETCHER R

IPC: C01B17/02 ,  C01B17/14

CPC classification number: C01B17/0216

Abstract: A METHOD OF SOLIDIFYING MOLTEN SULPHUR INVOLVES FORMING ON A BELT AT LEAST ONE UNDULATION WHICH IS SHAPED TO PERMIT THE FORMATION OF A POOL OF MOLTEN SULPHUR. MOLTEN SULPHUR IS FED ONTO THE BELT SO THAT A POOL IS FORMED ON THE UNDULATION. THE SPEED OF THE BELT IS CONTROLLED IN RELATION TO THE FEED RATE OF THE SULPHUR AND IN RELATION TO THE ANGLE AND LENGTH OF THE SURFACE OF THE UNDULATION REMOTE FROM A FEEDING SECTION FOR THE SULPHUR SO THAT MOLTEN SULPHUR IS CAUSED TO FORM INTO A LAYER AND SOLIDIFY ON THE BELT AS IT PASSES THROUGH THE POOL. COOLED OR PARTIALLY COOLED SULPHUR IS THEN DELIVERED FROM THE SURFACE OF THE BELT. THE ANGLE OF UNDULATION EXTENDING UPWARDLY AND AWAY FROM THE FEEDING SECTION IS NORMALLY WITHIN THE RANGE OF ONE HALF A DEGREE TO ABOUT THREE DEGREES. APPARATUS FOR USE IN THE SOLIDIFICATION OF MOLTEN SULPHUR IS ALSO PROVIDED. A COOLING TANK ASSEMBLY PROVIDED WITH A PURALITY OF GENERALLY TRANSVERSELY DISPOSED BAFFLES INCLUDES MEANS FOR DIRECTING A SUPPLY OF AIR INTO THE ASSEMBLY WITH AN AIR DEFLECTOR EMBODIED IN THE COOLING TANK STRUCTURE.

公开(公告)号：US3524724A

公开(公告)日：1970-08-18

申请号：US3524724D

申请日：1966-10-12

Applicant: CONTINENTAL OIL CO

Inventor： EVERY RICHARD L ,  COX PAUL F

IPC: C01B17/64 ,  C05C3/00 ,  C01B17/14

CPC classification number: C05C3/00 ,  C01B17/64 ,  Y10T137/034

公开(公告)号：US4423025A

公开(公告)日：1983-12-27

申请号：US308604

申请日：1981-10-05

Applicant: Thomas H. Ledford ,  Howard Lerner

Inventor： Thomas H. Ledford ,  Howard Lerner

IPC: C01B17/02 ,  C01B17/14

CPC classification number: C01B17/0232

Abstract: A method for reducing the hydrogen sulfide, hydrogen polysulfides and/or ash content of molten sulfur is disclosed. The subject invention is directed at the addition of an effective amount of a degassing agent selected from the class consisting of organo-phosphorous compounds, dithionates, thiosulfates, bisulfates, and bisulfites.

Abstract translation: 公开了一种降低硫化氢，多硫化氢和/或熔融硫含量的方法。 本发明涉及添加有效量的选自有机磷化合物，二硫酸盐，硫代硫酸盐，硫酸氢盐和亚硫酸氢盐的脱气剂。

公开(公告)号：US4203727A

公开(公告)日：1980-05-20

申请号：US964742

申请日：1978-11-29

Applicant: Charles H. Simpson

Inventor： Charles H. Simpson

IPC: C10L9/02 ,  C10L9/10 ,  C01B17/14

CPC classification number: C10L9/02

Abstract: Raw coal containing sulfur impurities and water is ground in a vapor-tight extraction zone in contact with a combustible sulfur solvent at an elevated temperature. An extraction mixture slurry is formed which includes a liquid component comprising the solvent and sulfur impurities and a solid component comprising the comminuted, extracted coal. The liquid and solid components of the slurry are separated. At least a portion of the liquid component is preferably treated to separate sulfur. The liquid component is recycled to the extraction zone.If the solid slurry component has an undesirably high pyrite content, it is then reacted with a reagent to decompose the pyrites to water-soluble sulfur compounds and the reaction mixture is washed with water.

Abstract translation: 含硫杂质和水的原料煤在与可燃硫溶剂接触的气相萃取区中在升高的温度下研磨。 形成提取混合物浆料，其包括包含溶剂和硫杂质的液体组分和包含经​​粉碎的提取的煤的固体组分。 分离浆液的液体和固体成分。 优选处理至少一部分液体组分以分离硫。 液体组分被再循环到萃取区。 如果固体浆料组分具有不希望的高的黄铁矿含量，则其与试剂反应以将黄铁矿分解成水溶性硫化合物，并将反应混合物用水洗涤。

公开(公告)号：US3885920A

公开(公告)日：1975-05-27

申请号：US44815274

申请日：1974-03-04

Applicant: VENNARD & ELLIPTHORPE LTD

Inventor： ELLITHORPE ERNEST RALPH ,  FLETCHER RONALD BRUCE

IPC: C01B17/02 ,  C01B17/14

CPC classification number: C01B17/0216

Abstract: A method of solidifying molten sulphur involves forming on a belt at least one undulation which is shaped to permit the formation of a pool of molten sulphur. Molten sulphur is fed onto the belt so that a pool is formed on the undulation. The speed of the belt is controlled in relation to the feed rate of the sulphur and in relation to the angle and length of the surface of the undulation remote from a feeding section for the sulphur so that molten sulphur is caused to form into a layer and solidify on the belt as it passes through the pool. Cooled or partially cooled sulphur is then delivered from the surface of the belt. The angle of undulation extending upwardly and away from the feeding section is normally within the range of 1/2 * to about 3*. Apparatus for use in the solidification of molten sulphur is also provided. A cooling tank assembly provided with a plurality of generally transversely disposed baffles includes means for directing a supply of air into the assembly with an air deflector embodied in the cooling tank structure.

Abstract translation: 固化熔融硫的方法包括在带上形成至少一个起伏，其形状允许形成熔融硫磺池。 熔融的硫被输送到带上，使得在起伏上形成一个池。 带的速度相对于硫的进料速度和远离硫供给部分的起伏面的角度和长度的角度和长度进行控制，使得熔融硫形成一层， 在皮带上穿过泳池时，会固化。 然后从带的表面输送冷却或部分冷却的硫。 向上延伸并远离进料部分的起伏角通常在1/2至3度的范围内。 还提供了用于固化熔融硫的设备。 设置有多个大致横向设置的挡板的冷却箱组件包括用空气导流器将空气供给到组件中的装置，该空气导流器体现在冷却箱结构中。

公开(公告)号：US3687628A

公开(公告)日：1972-08-29

申请号：US3687628D

申请日：1970-09-11

Applicant: IGOR MIKHAILOVICH NELEN ,  VLADIMIR IVANOVICH GORYACHKIN

Inventor： NELEN IGOR MIKHAILOVICH ,  GORYACHKIN VLADIMIR IVANOVICH

IPC: C01B17/02 ,  C01B17/14

CPC classification number: C01B17/0232

Abstract: A METHOD OR PURIFYING SULPHUR FROM ARSENIC, ACCORDING TO WHICH MOLTEN SULPHUR IS TREATED WITH CALCIUM OXIDE OR CALCIUM HYDROXIDE IN THE PRESENCE OF A SULPHUR IMMISCIBLE PHASE AN AQUEOUS SOLUTION OF INORGANIC SALTS, HAVING A BOILING POINT HIGHER THAN THE MELTING POINT OF SULPHUR, THE ANIONS OF SAID AQUEOUS SOLUTION FORMING SOLUBLE COMPOUNDS WITH CALCIUM, SAID SULFUR-IMMESCIBLE PHASE PREFERABLY WETTING ANY EXCESS SOLID CALCIUM OXIDE OR HYDROXIDE OR THE SOLID CALCIUM REACTION PRODUCT WITH ARSENIC. SAID METHOD OF PURIFYING SULPHUR OBVIATES THE FORMATION OF ARSENIFEROUS WASTE SOLUTIONS, PROVIDES FOR THE CONCENTRATION OF ARSENIC IN A SOLID, COMPACT, DUSTLESS PRODUCT WHICH IS CONVENIENT FOR TRANSPORTATION AND BURISL, AND REQUIRES CONVENTIONAL (NON-AUTOCLAVE) EQUIPMENT FOR ITS REALIZATION.