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公开(公告)号：USRE29458E
公开(公告)日：1977-10-25
申请号：US597180
申请日：1975-07-18
CPC分类号： C01B25/301 , C05B7/00
摘要： Fertilizer materials, especially potassium dihydrogen phosphate, are produced by the reaction of phosphate rock or a solubilized form thereof, such as mono calcium phosphate, dicalcium phosphate, etc., concentrated sulfuric acid, potassium hydrogen sulfate and, optionally fresh or recycle phosphoric acid, the resulting mixture is filtered to remove the calcium sulfate precipitate and the potassium dihydrogen phosphate is recovered from the filtrate, either by concentration and filtration or by extraction with an organic solvent.
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公开(公告)号：US4055626A
公开(公告)日：1977-10-25
申请号：US696290
申请日：1976-06-15
IPC分类号： C01B25/222 , C01B25/225 , C01B25/237 , C01B25/30 , C05B11/08 , C01B25/16
CPC分类号： C05B11/08 , C01B25/225 , C01B25/2375 , C01B25/303
摘要： Substantially fluoride-free phosphoric acid is produced by the acidulation of phosphate rock with sulfuric acid wherein the acidulation reaction is conducted in the presence of added potassium as K.sub.2 O bearing compounds, e.g. KHSO.sub.4, K.sub.2 SO.sub.4, KH.sub.2 PO.sub.4 or KOH, and additional silica, to precipitate fluorides and silica as potassium silicofluoride and then removed on separation of the gypsum formed. Optionally, additional silica may be added to the phosphoric acid solution recovered after precipitation and removal of the gypsum, to precipitate additional fluoride as potassium silicofluoride to further purify the phosphoric acid. In a further embodiment sufficient potassium may be added along with additional silica in the acidulation step to produce potassium dihydrogen phosphate and phosphoric acid as additional products. The phosphoric acid and potassium dihydrogen phosphate are recovered substantially free from fluoride contamination and the reaction is carried out in the substantial absence of fluorine evolution into the atmosphere. Also disclosed is a process for conducting a conventional phosphoric acid facility to produce phosphoric acid and gypsum wherein defluorination of the phosphoric acid recovered is achieved by silicon dioxide and K.sub.2 O addition and the fluorides are removed from the system, the process including steps for production of pure phosphoric acid and potassium dihydrogen phosphate.
摘要翻译： 通过用硫酸酸化磷酸盐岩产生基本上不含氟化物的磷酸，其中酸化反应在加入的K 2存在下作为带有K2O的化合物，例如， KHSO 4，K 2 SO 4，KH 2 PO 4或KOH和另外的二氧化硅，以氟硅酸钠和二氧化硅的形式沉淀，然后在形成的石膏分离后除去。 任选地，可以在沉淀和除去石膏之后回收的磷酸溶液中加入另外的二氧化硅，以沉淀另外的氟化硅作为氟硅酸钾以进一步纯化磷酸。 在进一步的实施方案中，在酸化步骤中可以连同另外的二氧化硅一起加入足量的钾，以产生磷酸二氢钾和磷酸作为附加产物。 基本上没有氟化物污染物回收磷酸和磷酸二氢钾，并且基本上没有氟进入大气中进行反应。 还公开了一种用于进行常规磷酸设备以生产磷酸和石膏的方法，其中回收的磷酸的脱氟通过二氧化硅和K 2 O添加实现并且氟化物从系统中除去，该方法包括生产 纯磷酸和磷酸二氢钾。
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公开(公告)号：US3998935A
公开(公告)日：1976-12-21
申请号：US545554
申请日：1975-01-30
摘要： Potassium sulfate (K.sub.2 SO.sub.4) is prepared by contacting potassium chloride with an aqueous solution containing potassium bisulfate at a temperature of about 65.degree.-110.degree. C., cooling the solution and permitting the potassium sulfate to crystallize from solution.
摘要翻译： 通过在约65-110℃的温度下使氯化钾与含有硫酸氢钾的水溶液接触来制备硫酸钾（K 2 SO 4），冷却溶液并允许硫酸钾从溶液中结晶。
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公开(公告)号：US4672545A
公开(公告)日：1987-06-09
申请号：US597598
申请日：1984-04-06
申请人： Jia-Wen Lin , Tom C. Holloway
发明人： Jia-Wen Lin , Tom C. Holloway
CPC分类号： G01V1/32 , G01V1/282 , G01V2210/614
摘要： Method and apparatus are disclosed for converting seismic data obtained at known points to synthesized seismic traces obtainable at arbitrarily selected points. Two dimensional seismic data are converted to three dimensional data with the aid of a programmed computer to permit generation of arbitrary views of a particular geologic structure as well as a mathematical representation of the structure. In order to provide accurate interpolation from the known data, both apparent and true dip characteristics are obtained for the surveyed structure, and seismic trace data for a desired point are synthesized as a function of the dip of the surveyed structure. The dip characteristics are obtained from partial derivatives of the two dimensional data in specified coordinate directions. A three dimensional surface corresponding to the dip characteristics is obtained by a least squares fitting technique. The data obtained at the known points are weighted both by distance from the desired point and the semblance coefficients associated with dip for these points to synthesize the desired data.
摘要翻译： 公开了用于将在已知点处获得的地震数据转换成可在任意选择的点处获得的合成地震迹线的方法和装置。 借助于编程的计算机将二维地震数据转换为三维数据，以允许生成特定地质结构的任意视图以及结构的数学表示。 为了从已知数据提供精确的插值，对于被测量的结构，获得了明显和真实的倾斜特性，并且根据被测结构的倾角来合成所需点的地震迹线数据。 浸渍特性从指定坐标方向上的二维数据的偏导数获得。 通过最小二乘拟合技术获得与浸渍特性相对应的三维表面。 在已知点处获得的数据通过与期望点的距离和与这些点的倾斜相关联的相似系数加权，以合成所需数据。
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公开(公告)号：US4613446A
公开(公告)日：1986-09-23
申请号：US711151
申请日：1985-03-13
申请人： Arpad M. Magyar
发明人： Arpad M. Magyar
CPC分类号： C11D10/04 , C11D17/049 , C11D1/521 , C11D1/72
摘要： Gelled detergent compositions are contained in cleaning devices such as plastic mesh pads and sponges, which gelled detergent compositions comprise water, an alkali metal hydroxide, an alkali metal phosphate, a wetting agent, a fatty acid which reacts with the alkali metal hydroxide to form a soap, a chelating agent, a surfactant, and optionally colorant and odorant components.
摘要翻译： 凝胶洗涤剂组合物包含在诸如塑料网垫和海绵的清洁装置中，其凝胶化的洗涤剂组合物包含水，碱金属氢氧化物，碱金属磷酸盐，润湿剂，与碱金属氢氧化物反应以形成 皂，螯合剂，表面活性剂和任选的着色剂和加味剂组分。
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公开(公告)号：US4501825A
公开(公告)日：1985-02-26
申请号：US625531
申请日：1984-06-28
申请人： Arpad M. Magyar , Gerald G. Smith
发明人： Arpad M. Magyar , Gerald G. Smith
CPC分类号： B29C73/163 , B29L2030/00 , Y10S428/912 , Y10T152/10684
摘要： A novel tire sealant and inflator composition comprising a resin, a latex sealant, alkylene glycol, fibers, an alkanolamine, a foaming agent, and water. The composition is packaged in aerosol cans with a chlorofluorocarbon propellant/inflator and used to seal and inflate punctured tires. The composition is applied to the punctured tire through the valve stem, and acts to seal the puncture and inflate the tire sufficiently to support the weight of the car.
摘要翻译： 一种新型的轮胎密封剂和充气机组合物，其包含树脂，胶乳密封剂，亚烷基二醇，纤维，链烷醇胺，发泡剂和水。 该组合物用氯氟烃推进剂/充气机包装在气溶胶罐中，并用于密封和充气穿孔轮胎。 组合物通过阀杆施加到穿刺的轮胎上，并且用于密封穿刺并充分膨胀轮胎以支撑汽车的重量。
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17.发明授权Decomposition of 2KCl.CuCl to produce cuprous chloride and potassium chloride 失效2KCl.CuCl的分解产生氯化亚铜和氯化钾
公开(公告)号：US4343781A
公开(公告)日：1982-08-10
申请号：US272025
申请日：1981-06-09
申请人： John B. Sardisco
发明人： John B. Sardisco
CPC分类号： C01G3/05
摘要： Cuprous chloride is produced from the complex salt, 2KCl.CuCl, obtained as a by-product in the copper industry where chalcopyrite is decomposed in the presence of potassium chloride, by a series of steps involving reaction of an aqueous solution of the complex salt of potassium chloride and cuprous chloride with ammonia, separating the resulting solid potassium chloride from a solution containing cuprous chloride and ammonia, removing the ammonia from the solution to cause precipitation of the cuprous chloride and recovering solid cuprous chloride. Ammonia may then be recycled to the solution from which the cuprous chloride is removed and to which additional complex salt is added to repeat the cycle.
摘要翻译： 氯化亚铜由复合盐2KCl.CuCl生产，2KCl.CuCl作为副产物，在铜工业中，其中黄铜矿在氯化钾存在下分解，通过一系列步骤，包括将 氯化钾和氯化亚铜与氨，从含有氯化亚铜和氨的溶液中分离得到的固体氯化钾，从溶液中除去氨，导致氯化亚铜沉淀并回收固体氯化亚铜。 然后可以将氨再循环到除去氯化亚铜的溶液中，再加入另外的配盐以重复循环。
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公开(公告)号：US4302255A
公开(公告)日：1981-11-24
申请号：US116863
申请日：1980-01-30
摘要： A novel sulfur-based adduct formed by reacting sulfur with a diene-containing by-product hydrocarbon mixture available from petrochemical operations and/or from coal processing. The adduct is a reaction product of sulfur and each of the dienes contained in the by-product mixture. Also disclosed is a road surface composition containing this adduct as an asphalt extender or as a replacement for asphalt, and there are also disclosed other compositions containing this adduct such as sulfur cements, sulfur concretes, coatings, foams, structural materials and insulators.
摘要翻译： 通过使硫与含石油化学操作和/或来自煤加工的二烯烃副产物烃混合物反应而形成的新的硫基加合物。 加合物是副产物混合物中所含的硫与二烯的反应产物。 还公开了含有作为沥青增量剂的该加合物或作为沥青的替代物的路面组合物，并且还公开了含有该加合物的其它组合物，例如硫磺水泥，硫磺混凝土，涂料，泡沫，结构材料和绝缘体。
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公开(公告)号：US4222990A
公开(公告)日：1980-09-16
申请号：US31155
申请日：1979-04-18
申请人： Erhart K. Drechsel
发明人： Erhart K. Drechsel
IPC分类号： C01B25/18 , C01B25/22 , C01B25/223 , C01B25/234 , C01B25/30 , C01B25/32 , C01B25/46 , C01F11/22 , C05D9/02
CPC分类号： C01B25/003 , C01B25/01 , C01B25/185 , C01B25/22 , C01B25/223 , C01B25/234 , C01B25/30 , C01B25/303 , C01B25/328 , C01B25/46 , C01F11/22 , C05D9/02
摘要： A method is disclosed for the acidulation of phosphate rock and the production of substantially pure alkali metal phosphates, calcium phosphates, and phosphoric acid which are essentially free of fluorides and recovery of the fluorine values from the starting phosphate rock in useful form. The steps of the method comprise initial acidulation of phosphate rock with a phosphoric acid solution containing sufficient alkali metal values to provide R.sub.2 O in the system, where R is alkali metal, to solubilize the phosphates and form an insoluble precipitate comprising a mixture of impurities, sand (SiO.sub.2) and the fluorides, from which the fluorides can be recovered in usable form. In preferred embodiments, after removal of the precipitate containing the fluorides, a portion of the solution of phosphoric acid and calcium phosphate is reacted with sulfuric acid and RHSO.sub.4 or R.sub.2 SO.sub.4 where R is alkali metal, to form a solution of RH.sub.2 PO.sub.4 and phosphoric acid and at least a portion of the RH.sub.2 PO.sub.4 and phosphoric acid solution is recycled to the initial acidulation to provide the R.sub.2 O and phosphoric acid makeup. The remainder of the solution of calcium phosphate and phosphoric acid may be further processed for recovery of useful products such as monocalcium phosphate and/or dicalcium phosphate, phosphoric acid, alkali metal phosphates, and calcium sulfate.
摘要翻译： 公开了一种用于磷酸盐岩的酸化和基本上不含氟化物的基本上纯的碱金属磷酸盐，磷酸钙和磷酸的生产方法，并以有用的形式从原料磷酸盐岩中回收氟值。 该方法的步骤包括用含有足够碱金属值的磷酸溶液初始酸化磷酸盐岩，以在R为碱金属的体系中提供R 2 O，以溶解磷酸盐并形成不溶性沉淀，其包含杂质，砂 （SiO 2）和氟化物，氟化物可以从其中以可用形式回收。 在优选的实施方案中，在除去含有氟化物的沉淀物之后，将一部分磷酸和磷酸钙溶液与硫酸和RHSO 4或R 2 SO 4反应，其中R是碱金属，形成RH2PO4和磷酸的溶液，并在 将至少一部分RH2PO4和磷酸溶液再循环至初始酸化以提供R2O和磷酸的组成。 可以进一步处理磷酸钙和磷酸的其余溶液以回收有用的产物，例如磷酸一钙和/或磷酸二钙，磷酸，碱金属磷酸盐和硫酸钙。
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公开(公告)号：US4137063A
公开(公告)日：1979-01-30
申请号：US810002
申请日：1977-06-24
申请人： John B. Sardisco
发明人： John B. Sardisco
CPC分类号： C05B13/06
摘要： Potassium polyphosphate polymers having ratios of P.sub.2 O.sub.5 to K.sub.2 O which make them suitable as fertilizer products are prepared by reacting potassium fluosilicate also known as potassium silicofluoride with phosphoric acid and sulfuric acid at temperatures of about 250-500.degree. C.
摘要翻译： 通过在约250-500℃的温度下，也称为氟硅酸钾的氟硅酸钾与磷酸和硫酸反应制备具有适合作为肥料产品的P2O5至K2O比例的聚磷酸钾聚合物。
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