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61. 发明授权

US5275797A Method of producing barium carbonate 失效
标题翻译：生产碳酸钡的方法
公开(公告)号：US5275797A
公开(公告)日：1994-01-04
申请号：US25136
申请日：1993-03-02
申请人： Yuan-Haun Lee
发明人： Yuan-Haun Lee
IPC分类号： C01F11/18
CPC分类号： C01F11/188
摘要： A method is disclosed for producing barium carbonate by adding barium sulfate to coal tar pitch maintained at a temperature of about 350.degree. C. to about 450.degree. C., and thereafter heating the reactants to a temperature between 700.degree. C. to 950.degree. C. in a second stage. The second stage reaction product is reacted with an alkali metal carbonate.
摘要翻译：公开了一种通过向保持在约350摄氏度至约450摄氏度的煤焦油沥青中加入硫酸钡制备碳酸钡的方法，然后将反应物加热至700摄氏度至950摄氏度的温度在第二阶段。第二阶段反应产物与碱金属碳酸盐反应。

62. 发明授权

US5064718A Inorganic particles 失效
标题翻译：无机颗粒
公开(公告)号：US5064718A
公开(公告)日：1991-11-12
申请号：US515747
申请日：1990-04-27
申请人： Richard Buscall , Paul J. Scales , Serena J. Williams , Jill E. Newton
发明人： Richard Buscall , Paul J. Scales , Serena J. Williams , Jill E. Newton
IPC分类号： B01J2/00 , B01D9/00 , B01J2/28 , C01B13/36 , C01F1/00 , C01F5/14 , C01F5/22 , C01F11/18 , C01F11/22 , C01F11/46 , C01G1/00 , C01G9/02
CPC分类号： C01F11/188 , C01B13/36 , C01F11/22 , C01F11/462 , C01F5/22 , C01G1/00 , C01P2004/50 , C01P2004/61 , C01P2004/62 , C01P2006/22 , Y10T428/2998
摘要： A method for the preparation of colloidally stable particles of inorganic solid at high concentration which method comprises at least the step of precipitating from an aqueous medium the particles of the inorganic solid in the presence of a copolymer which comprises repeating units derived from:Component A: a hydrophilic oligomer or polymer bearing an addition-polymerizable olefinically-unsaturated group;Component B: an olefinically-unsaturated compound capable of copolymerizing with Component A and bearing a mineral acid group or a dicarboxylic acid group, or a carboxylic acid and a further group capable of hydrogen-bonding.

63. 发明授权

US4115219A Brine purification process 失效
标题翻译：盐水净化过程
公开(公告)号：US4115219A
公开(公告)日：1978-09-19
申请号：US822016
申请日：1977-08-05
申请人： Alan B. Gancy , Chester J. Kaminski
发明人： Alan B. Gancy , Chester J. Kaminski
IPC分类号： C01D3/16 , C25B1/36
CPC分类号： C01F11/18 , C01D3/16 , C01F11/181 , C01F11/187 , C01F11/188 , C01F5/14
摘要： In a process for purifying raw brine containing dissolved strontium, calcium and magnesium impurities wherein the raw brine is treated by contacting the brine with sodium carbonate for precipitation of strontium and calcium carbonate, contacting the brine containing the strontium and calcium carbonate solids with sodium hydroxide for precipitation of magnesium hydroxide, and removing strontium carbonate, calcium carbonate and magnesium hydroxide solids from the sodium chloride brine, the improvement which comprises passing at least a portion of said removed solids to the zone wherein the raw brine is contacted with sodium carbonate.
摘要翻译：在用于净化含有溶解锶，钙和镁杂质的原盐水的方法中，其中通过使盐水与碳酸钠接触以将沉淀的锶和碳酸钙接触来处理生盐水，使含有锶和碳酸钙固体的盐水与氢氧化钠接触沉淀氢氧化镁，以及从氯化钠盐水中除去碳酸锶，碳酸钙和氢氧化镁固体，其改进之处在于将至少一部分所述去除的固体送至其中生盐水与碳酸钠接触的区域。

64. 发明授权

US3950490A Process for the treatment of carburizing salt wastes 失效
标题翻译：渗碳盐废物处理工艺
公开(公告)号：US3950490A
公开(公告)日：1976-04-13
申请号：US537449
申请日：1974-12-30
申请人： Wolfgang Muller , Lothar Witzke
发明人： Wolfgang Muller , Lothar Witzke
IPC分类号： B09B3/00 , C01D3/06 , C01F11/18 , C02F1/02 , C02F1/04 , C02F1/52 , C02F9/00 , C02F11/00 , C23C8/40 , C01F1/00
CPC分类号： C23C8/40 , C01D3/06 , C01F11/18 , C01F11/188 , C02F1/048 , C02F1/5236 , C01P2006/34 , C02F2101/18
摘要： This invention relates to a process for the treatment of the reaction mass produced during the joint elimination of barium-containing nitrite-/nitrate-bearing carburizing salt wastes and cyanide-/cyanate-bearing wastes by ignition of the dry mixture at elevated temperatures, comprising suspending the reaction mass in water and either (a) adding a water-soluble barium salt to the aqueous suspension in equimolar quantities, based upon carbonate ions, and separating precipitated barium carbonate, or (b) freeing the alkaline suspension from barium carbonate by filtration, reacting the filtrate with a water-soluble calcium salt, and separating precipitated calcium carbonate, concentrating the clear solutions obtained according to (a) or (b) to a water content of 10-20% by weight, separating precipitated sodium chloride, and evaporating the residual solution to dryness.
摘要翻译：本发明涉及一种处理在含钡亚硝酸盐/硝酸盐的渗碳盐废物和含氰化物/含氰酸盐的废物中通过在高温下点燃该混合物而产生的反应物质的方法，该方法包括将反应物料悬浮在水中，并且（a）以等摩尔量将水溶性钡盐以碳酸根离子的形式加入到水悬浮液中，并分离析出的碳酸钡，或（b）通过过滤将碱性悬浮液从碳酸钡中释出使滤液与水溶性钙盐反应，分离析出的碳酸钙，将根据（a）或（b）得到的透明溶液浓缩至10-20重量％的水分离，分离沉淀的氯化钠，和将残留的溶液蒸发至干燥。

65. 发明授权

US3847597A Process for the combined elimination and/or reconditioning of carburizing salt wastes 失效
标题翻译：组合消毒和/或重新加工硫酸盐废水的方法
公开(公告)号：US3847597A
公开(公告)日：1974-11-12
申请号：US34804573
申请日：1973-04-05
申请人： GOLDSCHMIDT AG TH
发明人： WITZKE L , MUELLER W , RODEWALD B
IPC分类号： C01F11/18 , C01F11/46 , C21D1/46 , C21D1/607 , C23C8/40 , C22B7/00
CPC分类号： C21D1/607 , C01F11/188 , C01F11/462 , C21D1/46 , C23C8/40 , Y02P10/212
摘要： A process for the elimination and/or reconditioning of carburizing salt wastes resulting from the hardening of various steel products, including, nitrite- and nitrate-containing wastes, sometimes containing barium, and cyanide- and cyanatecontaining wastes in which the nitrite- and nitrate-containing wastes are melted at a temperature between about 120* and 400*C, the resultant melt is filtered to obtain a reusable liquid nitrite/nitrate mixture and a solid residue, an excess of the residue is mixed with a solid cyanide- and cyanate-containing waste, if the barium-containing waste is to be eliminated rather than reconditioned, a sulfate of calcium, sodium, iron or mixtures thereof is added to the mixture in an amount equivalent to the barium content, and if it is desired to prevent the formation of nitric oxides, a reducing agent, such as, fine coal, charcoal, etc., is added to the mixture, the mixture is heated to a temperature of at least 150*C for a time sufficient to cause ignition of the mixture, preferably in a thin layer on a moving belt, the ignited product is washed with water and filtered to obtain a reusable barium carbonate residue and a strongly alkaline solution containing alkali carbonate suitable for use in the preliminary clean-up of heavy metal salt-containing industrial waste waters or the neutralization of waste acids, and, if a sulfate has been added, directly discarding the ignited product as a storable refuse.
摘要翻译：一种用于消除和/或修复由各种钢产品硬化所导致的渗碳盐废物的方法，包括含有亚硝酸盐和硝酸盐的废物，有时含有钡，以及含氰化物和氰酸盐的废物，其中亚硝酸盐和含硝酸盐的废物在约120℃和400℃之间的温度下熔化，将所得的熔体过滤，得到可重复使用的亚硝酸盐/硝酸盐混合物和固体残渣，将过剩的残余物与固体氰化物和含氰酸盐的废物，如果要将含钡废物排除而不是经过修复，则将钙，钠，铁或其混合物的硫酸盐以与钡含量相当的量加入到混合物中，如果需要防止形成一氧化氮，向混合物中加入还原剂，如细煤，木炭等，将混合物加热到至少150℃的温度足以达到使用混合物的点燃，优选在移动带上的薄层中，点燃的产物用水洗涤并过滤以获得可重复使用的碳酸钡残余物和含碱性碳酸盐的强碱性溶液，适用于初步清洁含重金属盐的工业废水或废酸中和，如果加入硫酸盐，直接将点燃的产品弃置为可储存的垃圾。

66. 发明授权

US3467494A Barium carbonate production 失效
标题翻译：碳酸钡生产
公开(公告)号：US3467494A
公开(公告)日：1969-09-16
申请号：US3467494D
申请日：1966-10-03
申请人： PPG INDUSTRIES INC
发明人： POSEGO JOHN J
IPC分类号： C01F11/18 , C01B17/16
CPC分类号： C01F11/188

67. 发明授权

US2637700A Method for producing barium salts 失效
标题翻译：钡盐生产方法
公开(公告)号：US2637700A
公开(公告)日：1953-05-05
申请号：US3203548
申请日：1948-06-09
申请人： BARIUM DEV CORP
发明人： HERBERT ARTHUR C
IPC分类号： C01F11/18
CPC分类号： C01F11/188

68. 发明授权

US1444623A Method of producing carbonates of the alkaline earth metals 失效
标题翻译：生产碱土金属碳酸盐的方法
公开(公告)号：US1444623A
公开(公告)日：1923-02-06
申请号：US40478720
申请日：1920-08-20
申请人： MATHIESON ALKALI WORKS INC
发明人： MACMAHON JAMES H
IPC分类号： C01F11/18
CPC分类号： C01F11/188

69. 发明授权

US8804A lennig 失效
公开(公告)号：US8804A
公开(公告)日：1852-03-16
申请号：US8804D
CPC分类号： C01F11/188

70. 发明授权

EP0801028B1 Verfahren zur selektiven Wiedergewinnung der Salzbestandteile aus nitrit-nitrathaltigen Härtereialtsalzen 失效转让
标题翻译：从用于所述盐组分的选择性回收过程硬化亚硝酸盐的含
公开(公告)号：EP0801028B1
公开(公告)日：1999-11-10
申请号：EP97105668.4
申请日：1997-04-05
申请人： Houghton Durferrit GmbH
发明人： Kremer, Matthias, Dr. , Wahl, Georg , Wigger, Stefan , Gock, Eberhard, Prof. Dr. , Kähler, Jörg, Dr.
IPC分类号： C01D9/00 , C01D3/08
CPC分类号： C01D3/08 , C01D9/00 , C01F11/188 , C21D1/46 , C21D1/607 , Y02P10/212

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