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U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 4976838 | Method for purification of bases from materials comprising base and salt The present invention is a method of recovery of base from material comprising base or acid and salts. The method is conducted in an apparatus comprising a cation membrane between two bipolar membranes.... | 12/11/1990 |
| 4194990 | Catalyst and process for the production of chlorofluorinated hydrocarbons Catalyst and process for the production of chlorofluorinated hydrocarbons are disclosed by reacting a hydrocarbon with HCl, HF and an oxygen-containing gas under oxychlorofluorination conditions in the presence of a catalytic composition comprising magnes... | 03/25/1980 |
| 4153532 | Apparatus for disassembly of a plural cell electrolyzer A cell frame transfer cart for vertical and horizontal displacement of a segment of a plural cell electrolyzer is comprised of spaced main and secondary platforms, a vertical displacement member disposed intermediate the platforms, and a support member fo... | 05/08/1979 |
| 4151261 | Method of preparing sodium liquors low in calcium A method for dissolving calcined trona containing calcareous impurities, to obtain an aqueous sodium carbonate solution having low calcium content involves contacting calcined trona in countercurrent flow, desirably under specific temperature conditions, ... | 04/24/1979 |
| 4116757 | Solar evaporation of alkaline trona-process waste pond liquors with acid black 2 and acid green 1 A process is provided for increasing the rate of solar evaporation of water from alkaline trona-process waste liquors which comprises introducing to the waste liquors an effective amount of a dye selected from the group consisting of Acid Black 2 and Acid... | 09/26/1978 |
| 4116629 | Corrosion inhibition of stainless steel exposed to hot carbonates A method for inhibiting the corrosion of martensitic and ferritic stainless steel surfaces which are exposed to hot carbonate solutions which comprises contacting said stainless steel surfaces with nickel ions and preferably with at least 10 ppm of nickel... | 09/26/1978 |
| 4115525 | Absorptive low bulk density product from sodium sesquicarbonate Conversion of sodium sesquicarbonate particles to particles of lower bulk density, as low as 180 grams per liter, with high absorption property capable of absorbing as much as 40 percent of wetting agent and with good resistance to breakage and attrition ... | 09/19/1978 |
| 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 |
| 4075281 | Purification of carbonate process solutions Present process relates to the purification of carbonate process solution which comprises passing said carbonate process solution through a bed of activated carbon to remove organic contaminants from said solution until the adsorbent capacity of said bed ... | 02/21/1978 |
| 4071606 | Sulfur dioxide with coal A process is described for producing sulfur by the reaction of sulfur dioxide with agglomerating coal. The purity of the product gases is improved and the tendency of the coal to agglomerate is reduced by employing coal particles having a particle size be... | 01/31/1978 |
| 4060458 | Separation of gas from solids Method and apparatus for use in a system which conducts a mixture of granular solids, such as preheated coal particles, and carrier gas, such as steam, to a plurality of enclosures, such as individual coke ovens of a coke oven battery. The mixture passes ... | 11/29/1977 |
| 4046867 | Method for making sulfur dioxide-containing gas stream Improvement in the method for making a sulfur dioxide-containing gas stream of low elemental sulfur content by contacting a stream of oxygen-containing gas with elemental sulfur maintained above its auto-ignition temperature to generate a gas stream conta... | 09/06/1977 |
| 4044097 | Recovery of soda values from sodium carbonate crystallizer purge liquors Soda values from the crystallizer mother liquor purge in the process of making sodium carbonate from trona are recovered by (1) mixing the purge with treating agent of magnesium oxide, aluminum oxide, bauxite, certain fine particle size calcined trona, in... | 08/23/1977 |
| 4040961 | Separation of solids from a liquid The invention is an apparatus and method for separating solid particles from a liquid, including both light particles which tend to flow on or close to the surface of the liquid and heavy particles which tend to sink to the bottom of the liquid. The appar... | 08/09/1977 |
| 4033419 | Vibrator and pushing apparatus for driving metal pins in rock faces in mines Method and apparatus for driving metal pins into a rock face in an underground mine to strengthen rock surfaces such as stratified overburden, or rock ribs, against failure. A cylinder containing a pin with its head resting on a driven member, and having ... | 07/05/1977 |
| 4022868 | Trona calcination In the process of making sodium carbonate from trona involving the steps of crushing the trona, calcining the crushed trona, dissolving the calcined trona to obtain a solution comprising sodium carbonate and insoluble impurities contaminated by soluble si... | 05/10/1977 |
| 4022867 | Soluble silicate reduction in sodium carbonate crystallizer mother liquors In the process for making sodium carbonate from trona, the soluble silicate content of crystallizer mother liquor from which sodium carbonate precursor crystals are obtained by evaporative crystallization is reduced by the method which comprises: 1. diges... | 05/10/1977 |
| 4021078 | Gas jet plug assembly The gas jet plug assembly is adapted for introducing gas into a pipe and includes: a gas jet plug; a sleeve; and a holding cap. The sleeve is mounted on an outside surface of a wall of the pipe around the periphery of a hole in which the plug is disposed.... | 05/03/1977 |
| 4021525 | Trona calcination In the process of making sodium carbonate from trona involving the steps of crushing the trona, calcining the crushed trona, dissolving the calcined trona to obtain a solution comprising sodium carbonate and insoluble impurities contaminated by soluble si... | 05/03/1977 |
| 4021526 | Soluble silicate reduction in calcined trona liquors In the process of making sodium carbonate from trona by the method involving crushing the trona, calcining it and dissolving it in an aqueous medium for purification by crystallization, soluble silicate contamination of the crystallization liquor is reduc... | 05/03/1977 |
| 4017121 | Longwall mining of trona with prefracturing to prevent slabbing In dry mining of trona by usual methods such as the room-and-pillar and the long wall mining methods, dust formation, energy requirements, and mining machine wear are reduced and mining tool life is increased by prefracturing the trona in situ prior to mi... | 04/12/1977 |
| 3995015 | Process for making sodium metabisulfite Improvement in the process for making sodium metabisulfite by contacting a suspension of sodium carbonate in countercurrent stream with sulfur dioxide, which involves passing sulfur dioxide-containing gas sequentially through a first and a second reaction... | 11/30/1976 |
| 3956457 | Preparation of sodium carbonate monohydrate Sodium carbonate monohydrate from crude trona is prepared by calcining the crude trona to crude sodium carbonate, dissolving the crude sodium carbonate in an aqueous solution, clarifying and filtering the resulting solution to remove insoluble material to... | 05/11/1976 |
