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1. 发明授权

US4195070A Preparation of a MgCl.sub.2 solution for Nalco's MgCl.sub.2 process from MgSO.sub.4 and other MgSO.sub.4 salts 失效
标题翻译：从MgSO 4和其他MgSO 4盐制备用于Nalco MgCl 2工艺的MgCl 2溶液
公开(公告)号：US4195070A
公开(公告)日：1980-03-25
申请号：US22397
申请日：1979-03-21
申请人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
发明人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
IPC分类号： C01D5/00 , C01F5/34 , C01D5/10 , C01D5/18
CPC分类号： C01D5/00 , C01F5/34
摘要： A method of beneficiating a mixed salt mineral ore containing potassium and magnesium sulfates and/or their hydrates which allows the recovery of anhydrous magnesium chloride and the simultaneous recovery of commercially acceptable potassium sulfate.
摘要翻译：一种优选含有硫酸钾和镁和/或其水合物的混合矿物矿石的方法，其允许回收无水氯化镁并同时回收商业上可接受的硫酸钾。

2. 发明授权

US4248838A Preparation of useful MgCl.sub.2. solution with subsequent recovery of KCl from carnallite 失效
标题翻译：制备有用的MgCl2。溶液随后从光卤石回收KCl
公开(公告)号：US4248838A
公开(公告)日：1981-02-03
申请号：US22396
申请日：1979-03-21
申请人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
发明人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
IPC分类号： C01F5/30 , C01D3/08 , C01D5/00 , C01F5/34
CPC分类号： C01D5/00 , C01D3/08 , C01F5/34
摘要： This invention outlines a process to beneficiate carnallite ores in such a way as to obtain anhydrous MgCl.sub.2 of sufficient purity to be used as feed for an electrolysis cell producing magnesium metal. Commercially acceptable potassium chloride as also recovered. The organic solvents and the anhydrous ammonia used to obtain the beneficiation of these carnallite materials are recovered for recycle in the process.
摘要翻译：本发明概述了以获得足够纯度的无水MgCl 2作为生产镁金属电解池的进料的方法来选择光卤石矿石的方法。也可回收市售的氯化钾。用于获得这些光卤石材料的选矿的有机溶剂和无水氨回收再循环。

3. 发明授权

US4195071A Polyethers to obtain anhydrous magnesium chloride 失效
标题翻译：聚醚获得无水氯化镁
公开(公告)号：US4195071A
公开(公告)日：1980-03-25
申请号：US016710
申请日：1979-03-01
申请人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
发明人： Ronald J. Allain , David G. Braithwaite , Joseph P. Maniscalco
IPC分类号： C01F5/34
CPC分类号： C01F5/34
摘要： In a process of producing anhydrous magnesium chloride of the type comprising:A. Mixing together a magnesium chloride hydrate, said hydrate containing minor amounts of water-soluble sulfate and boron compounds as impurities with diethyl ether of tetraethylene glycol to prepare 0.1-6.0% by weight slurry of MgCl.sub.2 in the diethyl ether of tetraethylene glycol and an azeotropic agent having a boiling point less than the diethyl ether of tetraethylene glycol in a quantity sufficient to remove water from said slurry;the improvement which comprises substituting dibutyl ether of tetraethylene glycol for the diethyl ether of tetraethylene glycol.
摘要翻译：在制备以下类型的无水氯化镁的方法中：A.将氯化镁水合物，所述水合物与少量的水溶性硫酸盐和硼化合物混合在一起作为杂质与四乙二醇的乙醚混合，制备0.1-6.0％的在四乙二醇的二乙醚中的MgCl 2重量浆料和沸点低于四甘醇二乙醚的共沸剂，其量足以从所述浆料中除去水; 其改进包括用四乙二醇的二丁基醚代替四乙二醇的乙醚。

4. 发明授权

US4208392A Two-step process for removing boron compounds from aqueous solutions of magnesium chloride 失效
标题翻译：从氯化镁水溶液中除去硼化合物的两步法
公开(公告)号：US4208392A
公开(公告)日：1980-06-17
申请号：US23066
申请日：1979-03-23
申请人： Ronald J. Allain , David G. Braithwaite , Ansell L. Reid
发明人： Ronald J. Allain , David G. Braithwaite , Ansell L. Reid
IPC分类号： C01F5/30
CPC分类号： C01F5/30
摘要： A two-step process for removing boron impurities from aqueous solutions of magnesium chloride which comprises treating these solutions with more than 3 moles of methanol in the presence of an acid catalyst to form trimethyl borate and then removing the trimethyl borate and excess methanol from such solutions by means of distillation and then extracting from the thus-treated solutions any remaining boron compounds by means of a hydrocarbon liquid.The hydrocarbon liquid extraction step may be used prior to the methanol treatment.
摘要翻译：一种用于从氯化镁水溶液中除去硼杂质的两步法，其包括在酸催化剂存在下用大于3摩尔甲醇处理这些溶液以形成三甲基硼酸盐，然后从该溶液中除去三甲基硼酸盐和过量的甲醇通过蒸馏，然后通过烃液体从这样处理的溶液中提取任何剩余的硼化合物。烃液体萃取步骤可以在甲醇处理之前使用。

5. 发明授权

US4201758A Boron removal from ethylene glycol-magnesium chloride solutions 失效
标题翻译：从乙二醇 - 氯化镁溶液中除去硼
公开(公告)号：US4201758A
公开(公告)日：1980-05-06
申请号：US22666
申请日：1979-03-22
申请人： Ronald J. Allain , David G. Braithwaite , Ansell L. Reid
发明人： Ronald J. Allain , David G. Braithwaite , Ansell L. Reid
IPC分类号： C01F5/30 , C01F5/34
CPC分类号： C01F5/34 , C01F5/30
摘要： A method for removing boric acid and salts therefrom from ethylene glycol-magnesium chloride solutions which contain at least 100 ppm of boron which comprises reducing the pH of such solutions below 7 and then adding thereto at least 3 moles of methanol based on the amount of boric acid or salt thereof present in said solution and then subjecting the thus-treated ethylene glycol-magnesium chloride solution to distillation at a temperature sufficient to remove trimethyl borate-methanol therefrom, thereby reducing the level of boron in the starting solution to not more than 35 ppm.
摘要翻译：一种从含有至少100ppm硼的乙二醇 - 氯化镁溶液中除去硼酸及其盐的方法，其包括将该溶液的pH降低到7以下，然后加入至少3摩尔甲醇，基于硼的量酸或其盐，然后在足以从其中除去三甲基硼酸盐 - 甲醇的温度下将经过处理的乙二醇 - 氯化镁溶液进行蒸馏，从而将起始溶液中的硼水平降低至不超过35 ppm。

6. 发明授权

US3966888A Anhydrous magnesium chloride using ethylene glycol and ammonia 失效
标题翻译：使用乙二醇和氨的无水氯化镁
公开(公告)号：US3966888A
公开(公告)日：1976-06-29
申请号：US626813
申请日：1975-10-29
申请人： David G. Braithwaite , Ronald J. Allain
发明人： David G. Braithwaite , Ronald J. Allain
IPC分类号： C01F5/34
CPC分类号： C01F5/34
摘要： Anhydrous magnesium chloride may be prepared from magnesium chloride hydrates by the following sequence of processing steps:1. Dissolving the magnesium chloride hydrate in ethylene glycol to form a magnesium chloride hydrate solution.2. Heating the thus-formed solution to remove all the water therefrom thereby forming a ethylene glycol anhydrous magnesium chloride solution.3. Treating the water-free magnesium chloride-ethylene glycol solution with ammonia to form a magnesium chloride ammonia complex which precipitates from the ethylene glycol.4. Removing the precipitate from the ethylene glycol and washing it with a low boiling solvent for ethylene glycol to remove any ethylene glycol entrained in the precipitate.5. Heating the magnesium chloride ammonia complex to drive off the ammonia which leaves as a finished product completely anhydrous magnesium chloride.
摘要翻译：无水氯化镁可以通过以下顺序的加工步骤由氯化镁水合物制备：

7. 发明授权

US3983224A Anhydrous magnesium chloride process 失效
标题翻译：无水氯化镁工艺
公开(公告)号：US3983224A
公开(公告)日：1976-09-28
申请号：US680403
申请日：1976-04-26
申请人： Ronald J. Allain , David G. Braithwaite
发明人： Ronald J. Allain , David G. Braithwaite
IPC分类号： C01F5/30 , C01F5/34
CPC分类号： C01F5/34
摘要： Anhydrous magnesium chloride may be prepared for magnesium chloride hydrate by the following sequence of process steps:A. mixing together a magnesium chloride hydrate said hydrate containing minor amounts of water soluble sulfate and boron compounds as impurities with diethyl ether of tetraethylene glycol to prepare 0.1 - 6.0% by weight slurry of MgCl.sub.2 in the diethyl ether of tetraethylene glycol and an azeotropic agent having a boiling point less than the diethyl ether of tetraethylene glycol in a quantity sufficient to remove water from said slurry;B. distilling water from said slurry wherein an anhydrous solution of MgCl.sub.2 in diethyl ether of tetraethylene glycol containing the water soluble sulfate and boron compounds as insoluble impurities is formed;C. separating said MgCl.sub.2 solution from the insoluble impurities;D. adding to the MgCl.sub.2 solution about 3.0 moles of ethylene glycol per mole of MgCl.sub.2 present so as to prepare a MgCl.sub.2.3 moles ethylene glycol complex precipitate;E. separating precipitate pecipitate from the diethyl ether of tetraethylene glycol and recovering the precipitate;F. dissolving said precipitate in ethylene glycol to prepare a solution of the precipitate in ethylene glycol said ethylene glycol being used in a quantity so as to prepare an ethylene glycol solution containing from 1 to 20% by weight MgCl.sub.2 ;G. treating the ethylene glycol magnesium chloride solution with ammonia to form a magnesium chloride-ammonia complex which is insoluble in the ethylene glycol with the temperature of the ethylene glycol magnesium chloride solution being within the range of between -15.degree. to 50.degree.C;H. separating the magnesium chloride-ammonia complex from the ethylene glycol;I. washing the magnesium chloride-ammonia complex with a polar solvent having a lower boiling point than ethylene glycol to remove any ethlene glycol entrained in the magnesium chloride-ammonia complex;J. heating the magnesium chloride-ammonia complex to a temperature sufficient to drive off the ammonia for a sufficient period of time to remove the ammonia, thereby forming anhydrous magnesium chloride; and then,K. recovering anhydrous magnesium chloride which has a magnesium oxide content of less than 0.8% by weight and which is substantially free of impurities.
摘要翻译：可以通过以下顺序的步骤制备氯化镁水合物的无水氯化镁：

8. 发明授权

US5644444A Read/write protect scheme for a disk cartridge and drive 失效
标题翻译：磁盘盒和驱动器的读/写保护方案
公开(公告)号：US5644444A
公开(公告)日：1997-07-01
申请号：US402540
申请日：1995-03-10
申请人： David G. Braithwaite , Clark C. Bruderer , Gregory M. Allen , David A. Thompson
发明人： David G. Braithwaite , Clark C. Bruderer , Gregory M. Allen , David A. Thompson
IPC分类号： G11B19/04 , G11B20/00 , G11B23/28
CPC分类号： G11B20/00152 , G11B19/04 , G11B20/00086 , G11B20/00695 , G11B20/00702 , G11B20/00768 , G11B23/288
摘要： A method of inhibiting inadvertent and unauthorized writing and reading of information to and from a storage medium comprises the steps of (a) writing a first code in a predetermined location on the storage medium, the first code being indicative of a first protection mode of the storage medium; (b) receiving a command to change the protection mode of the storage medium from the first protection mode to a second protection mode; and, in response to the command, (c) writing in the predetermined location on the storage medium, in place of the first code, a second code indicative of the second protection mode. A protection mode can inhibit writing to the storage medium, both writing and reading to and from the medium, or neither. Changing of protection modes can also be password protected.
摘要翻译：一种禁止向存储介质和从存储介质读取和读取信息的方法包括以下步骤：（a）将第一代码写入存储介质上的预定位置，第一代码指示第一保护模式存储介质; （b）接收将存储介质的保护模式从第一保护模式改变为第二保护模式的命令; 并且响应于该命令，（c）代替第一代码在存储介质上的预定位置写入指示第二保护模式的第二代码。保护模式可以抑制对存储介质的写入，从写入和读取到介质的读取，或者两者都不读写。更改保护模式也可以受密码保护。

9. 发明授权

US4400241A Extractive distillation process for the production of fuel grade alcohols 失效
标题翻译：用于生产燃料级醇的萃取蒸馏方法
公开(公告)号：US4400241A
公开(公告)日：1983-08-23
申请号：US285307
申请日：1981-07-20
申请人： David G. Braithwaite , Thomas Cheavens , Jason M. Voyce
发明人： David G. Braithwaite , Thomas Cheavens , Jason M. Voyce
IPC分类号： C07C27/00 , C07C29/84 , C07C31/00 , C07C31/02 , C07C31/08 , C07C31/10 , C07C67/00 , C07F5/04 , B01D3/40
CPC分类号： C07C31/10 , C07C29/84 , C07C31/08 , C07F5/04 , Y10S203/14
摘要： A novel composition, and extraction process for the dehydration of a hydrated aliphatic, monohydric alcohol to produce a fuel grade alcohol. A select group of alkali-metal and alkaline-earth metal salts are added to and dissolved within a low volatility polyhydric alcohol to form a solution, or solvent extractant, and said solvent extractant contacted and dissolved within said aliphatic, monohydric hydrated alcohol, the solvent extractant distilled, condensed, and a dehydrated fuel grade aliphatic monohydric fuel grade alcohol recovered.
摘要翻译：一种新型组合物，以及用于脱水水合脂肪族一元醇以产生燃料级酒精的提取方法。将一组碱金属和碱土金属盐加入并溶解在低挥发性多元醇中以形成溶液或溶剂萃取剂，并且所述溶剂萃取剂接触并溶解在所述脂族一元水合醇，溶剂萃取剂蒸馏，浓缩，脱水燃料级脂肪族一元燃料级酒精回收。

10. 发明授权

US3952085A Removal of boron from MgCl.sub.2 brines 失效
标题翻译：从MgCl中除去硼（hd 2 {b盐水
公开(公告)号：US3952085A
公开(公告)日：1976-04-20
申请号：US551750
申请日：1975-02-21
申请人： David G. Braithwaite , R. Keith Darlington
发明人： David G. Braithwaite , R. Keith Darlington
IPC分类号： C01F5/30 , C01F7/46
CPC分类号： C01F5/30
摘要： Minute amounts of boron present in naturally occurring brines found in oceans, inland seas, salt lakes and the like are removed by treating the brine with an oxide of aluminum.
摘要翻译：通过用铝的氧化物处理卤水来除去在海洋，内陆海域，盐湖等中发现的天然存在的盐水中存在的微量硼。

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