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| Number | Title | Issue Date |
| 4195596 | Combustion of halogenated hydrocarbons Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus... | 04/01/1980 |
| 4186000 | Salt-coated magnesium granules Small rotund salt-coated magnesium (or Mg alloy) granules, useful as an inoculant material or additive for molten metals, are prepared by adding a boron-containing dispersing agent to a molten salt mixture containing molten magnesium (or Mg alloy) stirrin... | 01/29/1980 |
| 4183900 | Recovery of Mg++ from brines Magnesium values are selectively recovered from salt brines, even salt brines which contain competing ions such as Li+, Ca++, and Sr++, by contacting the brine with an anion exchange resin which has dispersed therein a mic... | 01/15/1980 |
| 4182498 | Recovery of round metal granules from process sludge Metal beads, e.g., magnesium beads, or Mg alloy beads, having a high degree of rotundity, and having a thin coating of sludge or slag ingredients, are recovered from entrapment in a friable contiguous material of sludge or slag material by (a) a primary m... | 01/08/1980 |
| 4159311 | Recovery of lithium from brines Lithium is preferentially extracted from brine containing Li salts along with salts of other metals, e.g. Na, Ca, Mg, K, and/or B, by contacting the brine with a particulate anion exchange resin having suspended therein a microcrystalline form of LiX... | 06/26/1979 |
| 4151078 | Removing oil from water Hydrophobic silica, containing sorbed HF values, is used to remove oil from water by sorption of the oil onto the silica and then separating the oil/silica mixture from the water. Furthermore, the present invention pertains to recovering the silica from t... | 04/24/1979 |
| 4142951 | Brine electrolysis using bonded asbestos diaphragms The electrolysis of brine in electrolytic chlor-alkali diaphragm cells is performed using polymeric fluorocarbon-bonded mixtures of chrysotile asbestos and crocidolite asbestos as the diaphragm material. These diaphragms are particularly effective in perm... | 03/06/1979 |
| 4142005 | Process for preparing an electrode for electrolytic cell having a coating of a single metal spinel, Co3 O4 Electrodes particularly suitable for use as anodes in electrolytic cells are prepared by coating an electrically-conductive substrate with a thermally-decomposable inorganic cobalt compound and then thermally oxidizing the inorganic cobalt compound under ... | 02/27/1979 |
| 4140523 | Chemicothermal production of magnesium Magnesium metal is produced in a two-stage chemicothermal process employing metallothermic reduction of MgO using Al metal, present in an Al alloy, as the reducing metal in one stage according to the reaction and employing a carbothermic reduction, in the othe... | 02/20/1979 |
| 4125593 | Combustion of halogenated hydrocarbons Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus... | 11/14/1978 |
| 4116856 | Recovery of lithium from brines An anion exchange resin, containing Al(OH)3 suspended therein, is reacted with aq. LiOH to form microcrystalline LiOH.2Al(OH)3 which is then reacted with a halogen acid or halide salt to form microcrystalline LiX.2Al(OH)3.... | 09/26/1978 |
| 4116858 | Recovery of lithium from brines Lithium is preferentially extracted from brine containing Li salts along with salts of other metals, e.g. Na, Ca, Mg, K, and/or B, by contacting the brine with a particulate anion exchange resin having suspended therein a microcrystalline form of LiX.2Al(... | 09/26/1978 |
| 4116857 | Recovery of Mg++ from brines Magnesium values are selectively recovered from salt brines, even salt brines which contain competing ions such as Li+, Ca++, and Sr++, by contacting the brine with an anion exchange resin which has dispersed therein a mic... | 09/26/1978 |
