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Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 4597791 | Gold recovery processes The present invention relates to a process for the separation of gold from particulate material containing gold, which comprises introducing a hydrophobic liquid, a non-gold particulate hydrophobic bulking material and particulate, gold containing materia... | 07/01/1986 |
| 4585561 | Flotation process for the continuous recovery of silver or silver compounds from solutions or dispersions A flotation process for the continuous recovery of silver or silver compounds from solutions or dispersions is described, wherein finely divided, inert gas bubbles are injected into the dispersions of silver and silver compounds in the presence of protein... | 04/29/1986 |
| 4579586 | Mercaptohydroxy alkanes Dimercaptodihydroxy alkanes are used as a curing agent for epoxide resins and as ore flotation agents.... | 04/01/1986 |
| 4579589 | Process for the recovery of precious metals from a roaster calcine leach residue A process for separating precious metals from a roaster calcine leach residue from a process wherein copper or zinc sulfides are roasted to produce a copper or zinc calcine; the calcine is leached with an aqueous sulfuric acid leaching solution to produce... | 04/01/1986 |
| 4554137 | Enrichment of minerals by flotation and collector agents employed for this purpose Process of enrichment of minerals by flotation by means of a collector comprising a thio-compound, the thio-compound being a straight or branched dialkyl or dialkenyl polysulphide.... | 11/19/1985 |
| 4545963 | Process for separately recovering zinc and lead values from zinc and lead containing sulphidic ore A process for separately recovering zinc and lead values from zinc and lead containing sulphidic ore which also contains iron comprises subjecting ground ore to a first flotation step to float an initial lead concentrate containing zinc and produce zinc a... | 10/08/1985 |
| 4511540 | Exploitation of copper, nickel and cobalt by treating manganiferous matrix oxidized ores Process for treating oxidized ores with a manganiferous matrix to recover the small quantities of copper, nickel and cobalt, which consists of attacking the aforementioned ore by means of an aqueous solution of H2 SO4 with the simult... | 04/16/1985 |
| 4460459 | Sequential flotation of sulfide ores A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO2 as H2 SO3 under intense aeration,... | 07/17/1984 |
| 4404022 | Dore slag treatment A method is disclosed for treating dore slag resulting from smelting of a dore furnace charge, by grinding such slag and then subjecting the obtained pulp to froth flotation in the presence of a suitable frother and collector to produce a precious metals ... | 09/13/1983 |
| 4385038 | Flotation recovery of lead, silver and gold as sulfides from electrolytic zinc process residues A process is disclosed for the recovery of lead, silver and gold from the iron-bearing residue of an electrolytic zinc process by froth-flotating a slurry of the iron-bearing residue in the presence of a sulfidic collector agent in order to froth-flotate ... | 05/24/1983 |
| 4366127 | Hydrometallurgical process for the recovery of lead, silver and gold, as well as zinc, from impure jarosite residues of an electrolytic zinc process The impure jarosite residue of an electrolytic zinc process is leached in a sulfuric-acid-bearing solution in order to produce a leach residue which contains lead, silver and gold and a ferrisulfate-bearing solution and to separate them from each other, w... | 12/28/1982 |
| 4283017 | Selective flotation of cubanite and chalcopyrite from copper/nickel mineralized rock A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry, conditioning the... | 08/11/1981 |
| 4279867 | Process for the recovery of copper and zinc values from sulphidic ore A process for the recovery of copper and zinc values from copper and zinc containing sulphidic ore includes subjecting ground ore to a flotation operation. An initial copper concentrate is floated in a first flotation step, and the initial copper concentr... | 07/21/1981 |
| 4274870 | Smelting of copper concentrates by oxygen injection in conventional reverberatory furnaces A process for the modification to existing and conventional reverberatory furnaces for smelting copper concentrates in such furnaces, for improving the thermal efficiency of the furnace and for achieving an increased concentration of SO2 in the... | 06/23/1981 |
| 4236918 | Recovery of elemental sulfur and metal values from tailings from copper recovery processes Process for recovery of copper, molybdenum, gold and elemental sulfur in tailings from hydrometallurgical processing of copper sulfide ores, particularly chalcopyrite. The tailings are usually discarded, and thus the recovery of valuable elements therefro... | 12/02/1980 |
| 4198297 | Removal of trace copper ions from water Cations, such as copper, are recovered from very dilute aqueous solutions by means of a bubble fractionation process comprising countercurrent contacting of the feed solution with a stream of gas bubbles and a surfactant in an elongated vertical column.... | 04/15/1980 |
| 4192851 | Leaching of metal sulphides The process of the invention is for the separate recovery of elemental sulfur and residual sulfides and metal salt solution from reaction slurries obtained from leaching of metal sulfides in ores and concentrates. The process comprises directing flow of a... | 03/11/1980 |
| 4159943 | Froth flotation of ores using hydrocarbyl bicarbonates A froth flotation method for recovering of mineral values of earth alkaline metal minerals such as of magnesium, calcium, strontium, barium; base metal minerals such as of copper, silver, lead, zinc; heavy metal minerals such as of nickel, cobalt, iron, a... | 07/03/1979 |
| 4138248 | Recovery of elemental sulfur and metal values from tailings from copper recovery processes A process for the recovery of copper, molybdenum, gold and elemental sulfur in tailings from hydrometallurgical processing of copper sulfide ores, the process comprising concentrating the tailings containing elemental sulfur and copper, gold and molybdenu... | 02/06/1979 |
| 4130415 | Copper flotation with anti-5-nonyl-2-hydroxybenxophenone oxime The disclosure is of the use of a class of chelating agents having active nitrogen and oxygen chelating atoms and which form insoluble chelates with copper, as reagents for the recovery of for example copper values from copper-bearing materials by froth f... | 12/19/1978 |
| 4130626 | Flotation separation of iron oxide from undigested matte particles obtained from autoclave leach residues Undigested matte particles in autoclave leach residues containing iron oxide are separated from iron oxide by subjecting an aqueous slurry thereof to flotation without the use of a flotation reagent by bubbling air therethrough to form a froth containing ... | 12/19/1978 |
| 4118312 | Process for the concentration by flotation of fine mesh size or oxidized ores of copper, lead, zinc The invention relates to the concentration by flotation of fine mesh size and/or oxidized ores. The invention consists in using a chelating agent selected from the ଲ-diketones as flotation reagents in a conventional flotation process. Fine mesh size... | 10/03/1978 |
| 4090867 | Flotation of non-sulphide copper ores Flotation of a variety of non-sulphide and mixed sulphide plus non-sulphide copper ores is disclosed. Stabilization of non-sulphide copper mineral surfaces by sulphidization is initially required and a selective complexing agent able to complex with the c... | 05/23/1978 |
| 4054516 | Method for selectively capturing metal ions A method for selectively capturing metal ions by treating a solution conting ions of heavy metals, such as cupric ions, zinc ions, etc., at an adjusted pH value with a metal capturing agent comprising a condensation product of a higher fatty acid or deri... | 10/18/1977 |
| 4024218 | Process for hydrometallurgical upgrading This invention relates to a process for hydrometallurgical treatment of concentrates of sulphides of copper, nickel, cobalt, lead and iron and copper-containing mattes. A first embodiment of the process includes subjecting a finely ground slurry of a sulp... | 05/17/1977 |
| 4022866 | Recovery of metals Copper, zinc and nickel are recovered from sulfide concentrates prepared from ores of one or more such metals by subjecting such concentrate to a leaching operation which comprises slurrying the concentrate in an aqueous solution containing ammonium sulfa... | 05/10/1977 |
| 4011072 | Flotation of oxidized copper ores Copper is recovered from an aqueous pulp of an ore containing both sulfide minerals and oxidized minerals by continuously monitoring the EMF of the pulp and adding a water-soluble sulfide to the pulp in an amount from 0.05 to 7 pounds of contained sulfur ... | 03/08/1977 |
| 4006014 | Use of tetraalkylammonium halides as flotation collectors A process for the recovery of copper minerals from oxidized ores by flotation employing sulphidization of the oxidized minerals followed by flotation employing a tetraalkylammonium halide as collector. Preferably, a prior flotation step with a xanthate co... | 02/01/1977 |
| 3968032 | Process for concentrating lead and silver by flotation in products which contain oxidized lead A flotation process for recovering lead and silver values from electrolytic zinc residues is disclosed. BACKGROUND OF THE INVENTION The present invention relates to a process for reclaiming silver and lead by flotation in products containing oxidized lead such... | 07/06/1976 |
