Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 3998942 | Process for producing hydrogen and oxygen from water A process for the production of hydrogen and oxygen from water comprising the steps of forming ferric chloride from ferriferrous oxide by reaction with a chloride ion yielding substance, reducing the ferric chloride produced with a reducing agent to produ... | 12/21/1976 |
| 3989807 | Low temperature catalytic oxidation of chlorinated compounds to recover chlorine values using chromium-impregnated supported catalysts Substantially all of the chlorine values, e.g., chlorine, are recovered from reactant feeds of chlorinated organic compounds, e.g., hexachlorobenzene and hexachlorobutadiene, by an improved process involving catalytic oxidation at temperatures below 500°... | 11/02/1976 |
| 3989806 | Low temperature catalytic oxidation of chlorinated organic compounds to recover chlorine values Substantially all of the chlorine values, e.g., chlorine, are recovered from reactant feeds of chlorinated organic compounds, e.g., hexachlorobenzene and hexachlorobutadiene, by catalytic oxidation at temperatures below about 500° C through the use of tr... | 11/02/1976 |
| 3984206 | Apparatus for the combustion of halogenated hydrocarbons A process and apparatus for combusting halogenated organic materials wherein such materials are combusted at a temperature of at least 600°C in a refractory-lined furnace, the combustion gases formed are cooled and the acid constituent(s) thereof are sub... | 10/05/1976 |
| 3980755 | System for removing chloromethyl ether and bis-chloromethyl ether from air contaminated therewith Chloromethyl methyl ether and di(chloromethyl) ether contaminants are removed from air in laboratories, industrial plants and other locales wherein chloromethyl ether (more accurately called chloromethyl methyl ether) and bis-chloromethyl ether are used f... | 09/14/1976 |
| 3980758 | Process for the combustion of chlorine containing wastes A process for the combustion of chlorine containing residues and wastes with simultaneous recovery of the hydrogen chlorine thereby obtained, which comprises burning the chlorine containing residues with an excess of air and simultaneous addition of azeot... | 09/14/1976 |
| 3979502 | Method of eliminating chloroacetylenes present in hydrogen chloride gas A method of eliminating chloroacetylenes present in small quantities in hydrogen chloride gas. The method comprises passing hydrogen chloride contaminated with chloroacetylenes over active carbon at a temperature from 50° to 250°C. The method of the inv... | 09/07/1976 |
| 3972979 | Method of decomposing halohydrocarbons Exhaust gas containing a halohydrocarbon having 1 - 10 carbon atoms and molecular oxygen is contacted with chromium oxide or a boehmite supported platinum at an elevated temperature to decompose the halohydrocarbon to carbon dioxide, water, hydrogen halid... | 08/03/1976 |
| 3969493 | Thermochemical process for manufacture of hydrogen and oxygen from water Calcium hydroxide and iodine are reacted with each other in the presence of water to produce calcium iodate and calcium iodide, the former of which precipitates from the reaction solution and is obtained by filtration and the latter of which is thereafter... | 07/13/1976 |
| 3969490 | Production of hydrogen chloride by thermal dissociation of organic substances containing chlorine A process for the thermal dissociation of an organic substance containing chlorine in which substantially anhydrous hydrogen chloride is obtained. The substance containing chlorine is introduced in a first stage into a salt melt in the absence of oxygen, ... | 07/13/1976 |
| 3968178 | Chlorination of hydrocarbons The invention is a process for the thermal substitution chlorination of methyl chloride at an elevated pressure and separation of the chlorinated hydrocarbons from the anhydrous hydrogen chloride by partial condensation at an elevated pressure to provide ... | 07/06/1976 |
| 3968200 | Reactor effluent quench system Process for recovering hydrogen chloride from an aqueous hydrogen chloride off-gas from an oxychlorination reaction wherein hydrogen chloride is separated from the off-gas as an aqueous solution of hydrogen chloride and employed as feed to an oxychlorinat... | 07/06/1976 |
| 3959449 | Method of recovering heavy metal [-bromine] bromides and hydrobromic acid catalysts for liquid-phase oxidation [catalyst] A method of recovering in highly pure states heavy metals such as cobalt, manganese, etc., and bromine without the contamination of organic impurities and heavy metal impurities from the residue of the reaction mother liquor, which is obtained by removing... | 05/25/1976 |
| 3950498 | Process for the production of sulfur tetrafluoride The instant invention relates to a process for the production of sulfur tetrafluoride wherein sulfur tetrachloride or mixtures consisting of sulfur dichloride and chlorine are reacted with hydrogen fluoride in the presence of a carbon tetrahalide and subs... | 04/13/1976 |
| 3947558 | Method of recovering HF from mixtures containing C1 -C3 halocarbon compounds Hydrogen fluoride can be separated from an organic mixture of fluorinated C1 -C3 compounds and recovered for reuse by selectively absorbing the HF in a glycol in which the HF is soluble, but the fluorinated organic compound is substa... | 03/30/1976 |
| 3941066 | Method for disposal of waste synthetic high polymer Waste synthetic high polymer, especially those containing polyvinyl chloride and the like chlorine-containing synthetic resins are heated at 200°-500°C to thereby form a hot molten bath of fusible materials contained in the waste resin mixture and the c... | 03/02/1976 |
| 3939257 | Process for producing hydrogen from water A process for the production of hydrogen and oxygen from water comprising the steps of forming ferric chloride from ferriferrous oxide by reaction with a chloride ion yielding substance, reducing the ferric chloride produced with a reducing agent to produ... | 02/17/1976 |
| 3933980 | Process for removing ethylenically unsaturated chlorinated hydrocarbons from gas streams The invention is a method for reducing the amount of ethylenically unsaturated chlorinated hydrocarbons in gaseous mixtures. The method comprises providing a gas stream containing the ethylenically unsaturated chlorinated hydrocarbon and ozone by admixing... | 01/20/1976 |
| 3933989 | Method for disposal of waste synthetic high polymer Waste synthetic high polymer, especially those containing polyvinyl chloride and the like chlorine-containing synthetic resins are heated at 200°-500°C to thereby form a hot molten bath of fusible materials contained in the waste resin mixture and the c... | 01/20/1976 |
