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71. 发明授权

US1475492A Hydrated calcium nitrate and method of making same 失效
标题翻译：水合硝酸钙及其制备方法
公开(公告)号：US1475492A
公开(公告)日：1923-11-27
申请号：US48105621
申请日：1921-06-28
申请人： KRASE HERBERT J , YAM YEE JEW
发明人： KRASE HERBERT J , YAM YEE JEW
IPC分类号： C01F11/44 , C05C5/00
CPC分类号： C05C5/005 , C01F11/44

72. 发明授权

US4569677A Process for separating off calcium nitrate tetrahydrate by crystallization 失效
标题翻译：通过结晶分离出硝酸钙四水合物的方法
公开(公告)号：US4569677A
公开(公告)日：1986-02-11
申请号：US583039
申请日：1984-02-23
申请人： Gijsbertus H. M. Calis , Matheus H. G. Jennekens
发明人： Gijsbertus H. M. Calis , Matheus H. G. Jennekens
IPC分类号： C01B25/22 , C01F11/44 , B01D9/02
CPC分类号： C01F11/44
摘要： Separating Ca(NO.sub.3).sub.2.4H.sub.2 O from a nitrophosphate digestion liquor by crystallization, wherein Ca(NO.sub.3).sub.2.4H.sub.2 O seeding material with a particle size smaller than 100 .mu.m is added to this liquor at a temperature of 0.degree.,1.degree.-2.degree. C. lower than the saturation temperature, the resulting liquor is batchwise cooled, and the Ca(NO.sub.3).sub.2.4H.sub.2 O crystallized out is separated from the cooled liquor.The Ca(NO.sub.3 ).sub.2.4H.sub.2 O is substantially crystallized out without excessive cooling as very coarse and uniform particles which can be easily separated out.
摘要翻译：通过结晶从硝酸磷酸盐消解液中分离出Ca（NO 3）2·4H 2 O，其中在0℃，1℃-2℃的温度下向其中加入粒径小于100微米的Ca（NO 3）2·4H 2 O种子材料 C.低于饱和温度，将所得液体分批冷却，结晶出的Ca（NO 3）2·4H 2 O与冷却液分离。 Ca（NO 3）2·4H 2 O基本上结晶出来，而不会过度冷却，因为非常粗糙和均匀的颗粒可以容易地分离出来。

73. 发明授权

US4374817A Formulation of phosphate rock slurries 失效
标题翻译：磷酸盐岩浆的配方
公开(公告)号：US4374817A
公开(公告)日：1983-02-22
申请号：US294964
申请日：1981-08-21
申请人： Richard L. Lehman , John A. Shepherd
发明人： Richard L. Lehman , John A. Shepherd
IPC分类号： C01B25/01 , C01B25/16 , C01F11/44
CPC分类号： C01B25/01
摘要： The viscosity of phosphate rock slurries is reduced by incorporating in the slurry both sodium tripolyphosphate and an alkaline material, particularly sodium hydroxide. The combined amount of these two materials required to achieve a given viscosity reduction is significantly lower than the weighted average of the amounts required for each to produce individually the same viscosity reduction. The defined alkaline materials, other than sodium hydroxide, are sodium carbonate, ammonium hydroxide and potassium hydroxide.
摘要翻译：通过在三聚磷酸钠和碱性材料（特别是氢氧化钠）中掺入磷酸盐岩浆中的粘度降低。实现给定粘度降低所需的这两种材料的总量显着低于各自产生相同粘度降低所需量的加权平均值。除了氢氧化钠之外，所定义的碱性材料是碳酸钠，氢氧化铵和氢氧化钾。

74. 发明授权

US3947553A Process for preparing pure barium nitrate crystals 失效
标题翻译：制备纯硝酸钡晶体的方法
公开(公告)号：US3947553A
公开(公告)日：1976-03-30
申请号：US477508
申请日：1974-06-07
申请人： Robert H. Moss , William F. Spicuzza
发明人： Robert H. Moss , William F. Spicuzza
IPC分类号： C01F11/22 , C01F11/36 , C01F11/38 , C01F11/44
CPC分类号： C01F11/22 , C01F11/36
摘要： A malleable or press-forgeable ingot of barium fluoride, for use as an optical body, may be grown from an ultra-pure precipitate of barium fluoride which contains less than 10 parts per million (ppm) of strontium or calcium. A process is disclosed for crystallizing barium nitrate crystals in the presence of nitric acid, reacting barium nitrate with ammonium carbonate to form barium carbonate, recovering barium carbonate crystals, suspending the barium carbonate crystals in water and precipitating barium fluoride with hydrofluoric acid. The barium fluoride crystals are recovered, dried and then calcined in the presence of ammonium fluoride or bifluoride. Barium fluoride (BaF.sub.2) crystals obtained by the process of this invention contain less than 10 ppm of each strontium and calcium.Crystals of an alkaline earth metal fluoride which have been calcined in the presence of a fluoride of ammonium are unexpectedly densified, and are particularly suited for melt-growth of an ingot in a known manner. A maximum concentration of 10 ppm of strontium and calcium in a BaF.sub.2 ingot has been found to be the critical demarcation between a frangible prior art BaF.sub.2 ingot and an ingot of BaF.sub.2 which does not unpredictably shatter when cut, and, which may be reliably press-forged into an optical body.
摘要翻译：用作光学体的可锻或可压锻的氟化钡锭可以从包含少于10ppm（ppm）锶或钙的氟化钡的超纯沉淀物生长。公开了一种在硝酸存在下使硝酸钡晶体结晶的方法，使硝酸钡与碳酸铵反应形成碳酸钡，回收碳酸钡晶体，将碳酸钡晶体悬浮在水中，并用氢氟酸沉淀氟化钡。回收氟化钡晶体，干燥，然后在氟化铵或氟化氢存在下煅烧。通过本发明方法获得的氟化钡（BaF 2）晶体含有少于10ppm的锶和钙。

75. 发明授权

US2819955A Treatment of impure calcium nitrate 失效
标题翻译：治疗不纯的硝酸钙
公开(公告)号：US2819955A
公开(公告)日：1958-01-14
申请号：US33716053
申请日：1953-02-16
申请人： STAMICARBON
发明人： WILLEM SLOT
IPC分类号： C01F11/44 , C05B11/06 , C05C5/04
CPC分类号： C05C5/04 , C01F11/44 , C05B11/06

76. 发明授权

US2730814A Process for drying materials of high moisture diffusion resistance 失效
标题翻译：具有高耐水分扩散性的干燥材料的工艺
公开(公告)号：US2730814A
公开(公告)日：1956-01-17
申请号：US34468053
申请日：1953-03-25
申请人： COMMERCIAL SOLVENTS CORP
发明人： THOMAS GIACHINO MARCELLO
IPC分类号： C01C1/18 , C01F11/44 , C05C1/02 , F26B7/00
CPC分类号： F26B7/005 , C01C1/18 , C01F11/44 , C05C1/02 , C05C3/005 , C05C5/005

77. 发明授权

US07127913B2 Crystallisation of materials from aqueous solutions 有权
标题翻译：从水溶液中结晶材料
公开(公告)号：US07127913B2
公开(公告)日：2006-10-31
申请号：US10111278
申请日：2000-10-20
申请人： Geert-Jan Witkamp , Johannes Pieter Vrijenhoef , Johannes de Graauw , Frank van der Ham
发明人： Geert-Jan Witkamp , Johannes Pieter Vrijenhoef , Johannes de Graauw , Frank van der Ham
IPC分类号： B01D9/04 , B01D35/18 , C02F1/22 , C02F1/00 , C01F11/44
CPC分类号： C05F5/006 , B01D9/0004 , B01D9/0059 , C05F3/00 , Y02A40/205 , Y02A40/211 , Y02P20/145
摘要： The invention is directed to a process for recovering a crystalline material from an aqueous solution, which solution also contains organic contaminants, in which process the material is crystallised from the aqueous solution by freeze crystallising at a eutectic freezing point of the solution.
摘要翻译：本发明涉及从水溶液中回收结晶物质的方法，该溶液还含有有机污染物，在该方法中，该材料通过在溶液的共晶凝固点处冷冻结晶而从水溶液中结晶。

78. 发明授权

US06884269B2 Continuous method for manufacture of uniform size flake or powder 有权
标题翻译：制造均匀尺寸薄片或粉末的连续方法
公开(公告)号：US06884269B2
公开(公告)日：2005-04-26
申请号：US10171148
申请日：2002-06-13
申请人： Thomas M. Lucas , Jody Doyon
发明人： Thomas M. Lucas , Jody Doyon
IPC分类号： B01J2/02 , B01D9/00 , C01D7/00 , C01D7/38 , C01F11/18 , C01F11/44 , C22F1/00 , H01M8/02 , H01M8/14
CPC分类号： C01D7/38 , H01M8/0295 , H01M8/0693 , H01M8/145 , H01M2008/147 , H01M2300/0051 , Y02E60/526 , Y02P70/56
摘要： A method and apparatus for continuous fabrication of homogeneous thin flake or powder electrolyte material from inorganic salt, metallic or similar materials or from mixtures of such materials for use in Carbonate Fuel Cell (“CFC”) power plants. Electrolyte precursor powders are fed to a continuous blender type mixer using precision metering equipment that controls material feed rates. The homogenous mixture of blended powders is then fed into a high temperature melting tank in which the mixture is melted, forming the desired molten eutectic composition. The liquid eutectic melt drips from the melting tank through ceramic or metallic nozzles and splat-cools on a rotating, water-cooled metal cylinder to produce uniform size, thin flake material. The thin flake electrolyte material can be used as-is, or it may be further processed using continuous grinding and powder fabrication equipment.
摘要翻译：用于从碳酸盐燃料电池（“CFC”）发电厂中使用的无机盐，金属或类似材料或这些材料的混合物连续制造均质薄片或粉末电解质材料的方法和装置。使用精密计量设备将电解质前体粉末进料到连续搅拌机型混合器中，该设备控制材料进料速率。然后将混合粉末的均匀混合物进料到混合物熔化的高温熔融槽中，形成所需的熔融共晶组合物。液体共晶熔体从熔化罐通过陶瓷或金属喷嘴和旋转的水冷金属圆筒上的冷却器滴落，以产生均匀的尺寸，薄的薄片材料。薄片电解质材料可以原样使用，或者可以使用连续研磨和粉末制造设备进一步加工。

79. 发明授权

US4008309A Process for crystallizing calcium nitrate 失效
标题翻译：硝酸钙结晶的方法
公开(公告)号：US4008309A
公开(公告)日：1977-02-15
申请号：US576305
申请日：1975-05-12
申请人： Iuliu Virgil Florian Moldovan , Maria Suciu , Eugenia Tomescu
发明人： Iuliu Virgil Florian Moldovan , Maria Suciu , Eugenia Tomescu
IPC分类号： C01F11/44 , C05B11/06
CPC分类号： C05B11/06 , C01F11/44
摘要： Large-sized calcium nitrate tetrahydrate particles are obtained by dissolving phosphate rock in concentrated nitric acid, cooling the resulting solution, intentionally terminating the crystallization of the calcium nitrate tetrahydrate when only 40 to at most 60% of the calcium in solution has been crystallized, to form a mother liquor, recovering a portion of the mother liquor equivalent to 20 to 80% of the solution by removing the calcium nitrate crystals therefrom; combining the remainder of the suspension with the separated mother liquor and recovering the crystals with a particle size of from 70 to 1100 microns.
摘要翻译：通过将磷酸盐岩溶解在浓硝酸中，冷却所得溶液，有效地终止硝酸钙四水合物的结晶，当溶液中只有40％至至多60％的钙已结晶时，才能获得大尺寸硝酸钙四水合物颗粒，形成母液，通过从其中除去硝酸钙晶体，回收相当于溶液20-80％的母液的一部分; 将剩余的悬浮液与分离的母液混合并回收粒度为70至1100微米的晶体。

80. 发明授权

US3010788A Method of separating strontium from other fission products 失效
标题翻译：从其他裂变产物中分离锶的方法
公开(公告)号：US3010788A
公开(公告)日：1961-11-28
申请号：US69088757
申请日：1957-10-18
申请人： ATOMIC ENERGY AUTHORITY UK
发明人： EUGEN GLUECKAUF
IPC分类号： C01F11/44 , G21F9/00
CPC分类号： G21F9/007 , C01F11/44

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