Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7077968 | Method for continuously filtering raw brine for use in chlor-alkali electrolysis The method of continuously processing raw brine with a solids content to obtain substantially solids-free pure brine (E) for use in chlor-alkali electrolysis. In this method the raw brine (A) is separated, by means of a decanter (1), into a clear brine (B) wi... | 07/18/2006 |
| 7067087 | System and process for gas recovery This invention is directed to a three-stage process for recovering and purifying a helium gas, and a system for using the three-stage process. The steps comprise a) introducing a gas from a cold spray forming chamber to a particulate removing apparatus to form a par... | 06/27/2006 |
| 6657091 | Catalytic preparation of alkali metal alkoxides Alkali metal alkoxides are prepared by reacting alkali metal amalgam with alcohol in the presence of a catalyst comprising iron having a carbon content of at least 0.3% by weight.... | 12/02/2003 |
| 5262133 | Method of denuding sodium mercury amalgam and producing sodium alcoholates Disclosed is a method of denuding a sodium-mercury amalgam to recover mercury therefrom and produce a sodium alcoholate. The amalgam is reacted with a C1 to C4 alcohol in the presence of a catalyst selected from the group consisting ... | 11/16/1993 |
| 5221528 | Process for the preparation of sodium chloride In a purification process for brine, impurities such as calcium, magnesium and/or sulphate are precipitated by the addition of calcium hydroxide (Ca(OH)2) and sodium carbonate (Na2 CO3). Following NaCl crystallization by e... | 06/22/1993 |
| 5211933 | Method for preparation of LiCoO2 intercalation compound for use in secondary lithium batteries Methods are described for the low temperature preparation of the spinel LiMn2 O4 and layered LiCoO2 phases which are intercalable compounds of interest for use in lithium secondary batteries. These phases can be prepared i... | 05/18/1993 |
| 4957428 | Process for constructing furnaces with open chambers, for avoiding deformation thereof A process as disclosed for constructing a furnace for open chambers for baking carbonaceous blocks, comprising arranging a plurality of chambers in a series or in two parallel series, each chamber being defined by lateral partitions and transverse partiti... | 09/18/1990 |
| 4668342 | Recausticizing kraft green liquor A process of recausticizing kraft green liquor in which the green liquor containing sodium carbonate is passed in a stream in admixture with particles comprising slaked lime, in which stream the liquid phase becomes progressively weaker in sodium carbonat... | 05/26/1987 |
| 4115219 | Brine purification process 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... | 09/19/1978 |
