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1. 发明授权

US5736113A Method for beneficiation of trona 失效
标题翻译：天然碱的选矿方法
公开(公告)号：US5736113A
公开(公告)日：1998-04-07
申请号：US583879
申请日：1996-01-11
申请人： Wayne C. Hazen , Roland Schmidt , Dale Lee Denham, Jr.
发明人： Wayne C. Hazen , Roland Schmidt , Dale Lee Denham, Jr.
IPC分类号： B03C3/00 , C22B1/00 , C22B26/00 , C01D11/00 , B03C7/00 , C22B26/10
CPC分类号： B03C3/00 , C22B1/00 , C22B26/00
摘要： Disclosed is a method for beneficiating trona from a feedstream containing trona and impurities by a dry separation method, namely, electrostatically separating a first portion of impurities from the trona at a temperature between about 25.degree. C. and about 45.degree. C. The disclosed beneficiation of trona method may also include separation of impurities from trona by other dry separation methods, such as density separation, magnetic separation and size separation, and/or by wet separation methods.
摘要翻译：公开了一种通过干法分离方法从含有天然碱和杂质的原料流中净化天然碱的方法，即在约25℃至约45℃之间的温度下将第一部分杂质与天然碱静电分离。所公开的选矿天然碱法还可以包括通过其它干法分离方法如密度分离，磁分离和粒度分离，和/或通过湿式分离方法从天然碱中分离杂质。

2. 发明授权

US3684434A Solvent extraction process for separating water soluble ionic compounds 失效
标题翻译：用于分离水溶性离子化合物的溶剂萃取方法
公开(公告)号：US3684434A
公开(公告)日：1972-08-15
申请号：US3684434D
申请日：1969-06-23
申请人： ALLIED CHEM
发明人： SCHEIRER DAVID E , KLINGELHOEFER WILLIAM CHRISTIA
IPC分类号： B01D11/04 , C01D7/02 , C05B7/00 , C01D11/00
CPC分类号： B01D11/0488 , C01D7/02 , C05B7/00
摘要： IN A METATHESIS REACTION BETWEEN WATER-SOLUBLE IONIC SALT CONTAINING POLYVALENT ANION AND MONOVALENT ANION BY A SOLVENT EXTRACTION PROCESS USING WATER AND WATERMISCIBLE ORGANIC SOLVENT TO FORM TWO LIQUID PHASES IN THE PRESENCE OF THE SALTS, THE ORGANIC SOLVENT-RICH PHASE CONTAINING THE MONOVALENT ANION IS WASHED WITH AQUEOUS AMMONIUM CARBONATE SOLUTION TO REMOVE THE MONOVALENT ANION THEREFROM. THE WASHED SOLVENT IS THEN RETURNED TO THE REACTION ZONE. A PORTION OF THE AQUEOUS WASH EFFLUENT IS PASSED TO THE REACTION ZONE TO FACILITATE THE METATHESIS REACTION.

3. 发明授权

US3620689A Preparation of alkali metal hexafluorochlorates 失效
标题翻译：碱金属十六烷基硫酸盐的制备
公开(公告)号：US3620689A
公开(公告)日：1971-11-16
申请号：US3620689D
申请日：1965-08-20
申请人： OLIN MATHIESON
发明人： FAUST JOHN P , JACHE ALBERT W , KLANICA ANDREW J
IPC分类号： C01D3/00 , C01D17/00 , C01D11/00
CPC分类号： C01D17/00 , C01D3/00
摘要： Process for preparing alkali metal hexafluorochlorates having the formula MClF6 where M is potassium, rubidium or cesium which comprises reacting MF with chlorine pentafluoride at about 0* to 150* C. and at autogenous pressure in a reaction zone defined by surfaces of nickel fluoride.

4. 发明授权

US3558269A Phosphoro- and phosphonofluorido-thioic acids and their salts 失效
标题翻译：磷酸和磷酸氟尿嘧啶及其盐
公开(公告)号：US3558269A
公开(公告)日：1971-01-26
申请号：US3558269D
申请日：1968-03-05
申请人： DU PONT
发明人： ROESKY HERBERT W
IPC分类号： C01B25/10 , C01D17/00 , C01D11/00 , C01F1/00
CPC分类号： C01B25/10 , C01B25/00 , C01D17/00
摘要： CLAIMED ARE PHOSPHONOFLUORIDOTHIOIC ACIDS AND THEIR SALTS, USEFUL AS REDUCING AGENTS, OF THE FORMULAS:

(II) M(+) (-)S-P(=S)(-F)2,

(III) M(+) (-)S-P(=S)(-F)-S-P(=S)(-F)-S(-) M(+) AND

(IV) M(+) (-)S-P(=S)(-F)-S-S-P(=S)(-F)-S(-) M(+)

IN WHICH M IS HYDROGEN, A METAL, OR SPECIFIED TYPES OF ONIUM CATIONS; PREPARATION OF THOSE IN WHICH M IS AN ALKALI METAL BY REACTING P4S10 WITH AN ALKALI METAL FLURIDE IN THE PRESENCE OF (A), FOR (II), ACETRONITRILE, (B), FOR (III), WATER, AND (C), FOR (IV), ETHYLENE GLYCOL DIMETHYL ETHER; AND IN PREPARATION OF (II), WHEN M IS AN ALKALI METAL, BY REACTING SPF3 WITH AN ALKALI METAL FLUORIDE IN THE PRESENCE OF ACETONITRILE.

5. 发明授权

US3918921A Process for making granular hydrated alkali metal silicate 失效
标题翻译：制备颗粒状水合碱金属硅酸盐的方法
公开(公告)号：US3918921A
公开(公告)日：1975-11-11
申请号：US39270273
申请日：1973-08-29
申请人： PHILADELPHIA QUARTZ CO
发明人： PIERCE RICHARD H
IPC分类号： B01J2/04 , C01B33/32 , C11D3/08 , C11D11/02 , B01F3/06 , C01D11/00
CPC分类号： C01B33/325 , B01J2/04 , C11D3/08 , C11D11/02
摘要： Readily soluble hydrated alkali metal silicate granules are prepared by a change in the spray drying process. The fine particles produced by spray drying are recycled through the spray dryer so that agglomerates are formed.
摘要翻译：易溶于水的碱金属硅酸盐颗粒是通过喷雾干燥过程的改变来制备的。喷雾干燥生产的细颗粒通过喷雾干燥器再循环，形成附聚物。

6. 发明授权

US3816604A Process for the preparation of alkaline hyperoxide 失效
标题翻译：制备高碱性碱的方法
公开(公告)号：US3816604A
公开(公告)日：1974-06-11
申请号：US26883572
申请日：1972-07-03
申请人： AIR LIQUIDE
发明人： MALAFOSSE J
IPC分类号： B01J2/24 , C01B15/043 , C01B13/10 , C01D11/00
CPC分类号： C01B15/0435 , B01J2/24
摘要： ALKALINE HYPEROXIDES (SUPEROXIDES) ARE PREPRED BY FORMING. A CONCENTRATED AQUEOUS SOLUTION OF ALKALINE HYDROXIDE AND HYDROGEN PEROXIDE ITSELF CONTINUOUSLY PREPARED BY ADDING THE TWO REAGENTS TO A PREFROMED MIXTURE THEREOF, SUCH THAT THE ALKALINE HYDROXIDE AND HYDROGEN PROXIDE AT A TITER AT LEAST EQUAL TO 85% ARE MAINTAINED AT A MOLAR RATIO 1.5
SOLUTION IS

7. 发明授权

US3723603A Preparation of fluorophosphates 失效
标题翻译：氟磷酸盐的制备
公开(公告)号：US3723603A
公开(公告)日：1973-03-27
申请号：US3723603D
申请日：1969-09-29
申请人： ALBERT AG CHEM WERKE
发明人： SKURNIA U , ROHLFS H
IPC分类号： C01B25/455 , C01B25/00 , C01D11/00
CPC分类号： C01B25/455
摘要： A process for the continuous production of an alkali metal fluorophosphate from a mixture containing an anhydrous alkali metal fluoride and at least one phosphate and feeding it to a heated reactor vessel provided with means for continuous discharge of a molten product, and in the reactor vessel being a molten bed overlaid with starting materials, wherein the reactor vessel is provided with a) a melting tube surrounded by a protection tube, and )b an electrical heating element for heating said protection tube, and the distance between the protection tube and the melting tube is at least 5 and at most 300 mm and not more than 60 percent of the radius of the melting tube and an apparatus for carrying out this process.
摘要翻译：一种从含有无水碱金属氟化物和至少一种磷酸盐的混合物中连续生产碱金属氟磷酸盐的方法，并将其送入加热的反应器容器中，所述反应器装有连续排出熔融产物的装置，反应容器为覆盖有起始材料的熔融床，其中反应器容器设置有a）由保护管围绕的熔化管，以及b用于加热所述保护管的电加热元件，以及保护管和熔化管之间的距离是熔融管的半径的至少5和最多300mm且不大于60％，以及用于执行该过程的装置。

8. 发明授权

US3615175A Preventing physical explosion due to the interaction of liquid water and molten chemical compounds 失效
标题翻译：预防液体水和化学化合物相互作用的物理爆炸
公开(公告)号：US3615175A
公开(公告)日：1971-10-26
申请号：US3615175D
申请日：1969-03-24
申请人： COMBUSTION ENG
发明人： NELSON HUGH WHARTON
IPC分类号： B01J2/04 , B01J19/00 , D21C11/12 , F23G7/04 , F27B17/00 , C01D11/00
CPC分类号： B01J19/002 , B01J2219/00263 , D21C11/122
摘要： A method for preventing physical explosions, particularly of the smelt-water reaction type, in kraft chemical recovery furnaces. Upon detection of the presence of liquid water in the furnace, a solid compound capable of highly endothermic chemical reaction upon thermal decomposition is introduced into the furnace to cover the molten smelt on the furnace bottom. The decomposition reaction serves to inert the furnace with the nonflammable gases produced thus eliminating further heat production due to combustion in the char bed while solidifying the molten smelt (i.e., removing sensible heat stored therein) which is the source of explosive energy. The materials which may be employed for this purpose are alkali and alkaline earth carbonates and bicarbonates including sodium bicarbonate, ammonium carbonate and ammonium bicarbonate.

9. 发明授权

US3552936A Certain alkali metal and nitrosyl difluorochi orates and their preparation 失效
标题翻译：某些碱金属和NITROSYL DIFLOROCHO ORATES及其制备
公开(公告)号：US3552936A
公开(公告)日：1971-01-05
申请号：US3552936D
申请日：1965-08-11
申请人： STAUFFER CHEMICAL CO
发明人： CHRISTE KARL O , GUERTIN JACQUES P , PAVLATH ATTILA E
IPC分类号： C01B11/24 , C01D3/00 , C01D17/00 , C01B21/52 , C01D11/00
CPC分类号： C01D3/00 , C01B11/24 , C01D17/00
摘要： DIFLUOROCHLORATES (I) OF CESIUM, RUBIDIUM, POTASSIUM, AND NITROSYL AND THEIR PREPARATION BY REACTION OF CORRESPONDING FLUORIDES AND CHLORINE MONOFLUORIDE. REPRESENTATIVE COMPOUNDS ARE NITROSYL DIFLUOROCHLORATE (I), POTASSIUM DIFLUOROCHLORATE (I), RUBIDUM DIFLUOROCHLORATE (I) AND CESIUM DIFLUOROCHLORATE (I).

10. 发明授权

US3498744A Purification of calcined crude trona by monohydrate recrystallization 失效
标题翻译：通过单晶重结晶纯化计算的原油
公开(公告)号：US3498744A
公开(公告)日：1970-03-03
申请号：US3498744D
申请日：1961-09-18
申请人： INTERMOUNTAIN RES & DEV CORP
发明人： FRINT WILLIAM R , WAGGENER RICHARD W
IPC分类号： C01D7/12 , C01D7/28 , C01D7/00 , C01D11/00
CPC分类号： C01D7/28 , C01D7/126

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