Quotables
"The radio craze will die out in time."
Thomas Edison ; 1922
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5487819 | Production of metals from minerals A process for producing one or more metals from a mineral feedstock (12) is defined. The mineral is fed to a leaching apparatus (10) wherein it is contacted with electrolyte (14). The leaching apparatus has zones of decreasing oxidation potential (17, 18,... | 01/30/1996 |
| 5454917 | Apparatus and process for recovering metal from an aqueous solution The invention is an apparatus and process for recovering metal from a solution. This apparatus is a structure having an anode formed from a plurality of reducing metal elements and a cathode formed from a high surface area electrically conductive material... | 10/03/1995 |
| 5252189 | Method of processing used appliance batteries Used appliance batteries are subjected to a thermal-mechanical treatment in a closed container at a temperature at which, with the assistance of mechanical pressure and/or impact, metal-plastics and metal-metal bonds are disrupted. Then, after the metal p... | 10/12/1993 |
| 5024738 | Recovery of mercury from mercury compounds via electrolytic methods A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg2 Cl2 employing as the electrolyte solution a mixture of HCl and H2 O. In another embodiment, ... | 06/18/1991 |
| 4981562 | Electrolytic recovery of mercury enriched in isotopic abundance The present invention is directed to a method of electrolytically extracting liquid mercury from HgO or Hg2 Cl2. Additionally there are disclosed two related techniques associated with the present invention, namely (1) a technique fo... | 01/01/1991 |
| 4879010 | Recovery of mercury from mercury compounds via electrolytic methods A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg2 Cl2 employing as the electrolyte solution a mixture of HCl and H2 O. In another embodiment, ... | 11/07/1989 |
| 4859295 | Method for the precipitation of mercury by electrolysis A method is described for the precipitation by electrolysis of metallic mercury from an electrolyte containing Hg2 Cl2 in suspension by cathodic reduction. The method includes an electrolysis cell containing Hg2 Cl2 ... | 08/22/1989 |
| 4828661 | Process for recovery of metals from metal/plastic waste The invention relates to a process for recovery of metals from metal/plastic waste using used etching and washing solutions from the electronics industry, with the following process steps: (a) heating of the metal/plastic waste in a heating bath in order to ... | 05/09/1989 |
| 4826579 | Electrolytic preparation of tin and other metals Electrolytic processes for the growth of single crystal tin or other elemental crystals, with or without the use of a substrate. Exemplified cubic forms of alpha-tin and tetragonal forms of beta-tin are grown using a shaped anode and a pointed cathode to ... | 05/02/1989 |
| 4808136 | Mercury retention structure for introduction of measured amounts of mercury into a lamp and method of making the retention structure To be able to handle minute quantities of liquid mercury or liquid mercury lloy, for example to introduce said minute quantities into the discharge vessel of a discharge lamp, a retention body in form of a pill or pellet is formed which is a porous of a me... | 02/28/1989 |
| 4678550 | Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO ... | 07/07/1987 |
| 4640751 | Method for the purification of gases containing mercury and simultaneous recovery of the mercury in metallic form A method for the purification of gases containing mercury and simultaneous recovery of the mercury in metallic form by a process where primarily a reaction takes place between metallic vapory mercury and mercury (II)-chloride compounds in solution in a li... | 02/03/1987 |
| 4629543 | Method of preparing mercury with an arbitrary isotopic distribution This invention provides for a process for preparing mercury with a predetermined, arbitrary, isotopic distribution. In one embodiment, different isotopic types of Hg2 Cl2, corresponding to the predetermined isotopic distribution of H... | 12/16/1986 |
| 4619744 | Recovery of heavy metals from aqueous solutions Process for the recovery of heavy metals from aqueous solution by reaction with soluble, functionally-substituted polymer upon which the heavy metal loads, and optionally crosslinks by interaction with the heavy metals present in solution. Metals includin... | 10/28/1986 |
| 4461683 | Method for separating iodine in solid form, from an acid mercury salt solution There is described a method for separating iodine in solid form, from an acid mercury salt solution, which comprises subjecting said iodine-containing mercury salt solution at a pH value between 2 and 8, at an electrolysis for separating the mercury, and ... | 07/24/1984 |
| 4405420 | Catalyzed electrochemical gasification of carbonaceous materials at anode and electrowinning of metals at cathode The electrochemical gasification reaction of carbonaceous materials by anodic oxidation in an aqueous acidic electrolyte to produce oxides of carbon at the anode and metallic elements at the cathode of an electrolysis cell is catalyzed by the use of an ir... | 09/20/1983 |
| 4404288 | Method and apparatus for concentrating a vapor of a mercury sample solution A method for concentrating a vapor of a mercury sample solution is carried out by an apparatus having an electrode of amalgam-forming material which electrode is movable from the sample solution to a heated portion within a tube.... | 09/13/1983 |
| 4396474 | Modified carbon or graphite fibrous percolating porous electrode, its use in electrochemical reactions This invention concerns a fibrous percolating porous electrode of the type containing a fibrous porous matrix made of carbon or graphite. The fibrous porous matrix, such as a carbon or graphite felt, is modified, for example by impregnation with a surface-acti... | 08/02/1983 |
| 4385970 | Spontaneous deposition of metals using fuel fed catalytic electrode The present invention encompasses the use of a specific fuel fed electrode in depositing metals from solutions thereof and in the absence of an external applied potential. Basically as shown in FIG. 1, the electrode comprises an electrically conductive po... | 05/31/1983 |
| 4149943 | Method of recovering mercury Disclosed is a method of operating an electrolytic cell of the flowing mercury amalgam cathode type. According to the disclosed process, fortified alkali metal chloride brine is fed to the cell while an electrical current is passed through the cell. Deple... | 04/17/1979 |
| 4017369 | Method for the electrolytic recovery of Sb, As, Hg and/or Sn The invention relates to a method for selectively leaching at least one of the elements antimony, mercury, arsenic and tin from sulphidic and oxidic materials with alkali sulphide solutions and subsequent electrolytic recovery of the leached elements. The... | 04/12/1977 |
| 3930969 | Process for oxidizing metal sulfides to elemental sulfur using activated carbon Accelerated reaction rates and improved yields are accomplished when sulfides of metals of groups Ib, IIb, IVa, Va and VIII of the Periodic Table are oxidized in aqueous medium to convert the sulfide sulfur to elemental sulfur by performing the reaction i... | 01/06/1976 |
