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| Number | Title | Issue Date |
| 6962061 | Apparatus for the liquefaction of natural gas and methods relating to same An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and split into a process stream an... | 11/08/2005 |
| 5571234 | Method of removing inorganic metallic compounds from solutions Inorganic metallic compounds, particularly salts, oxides and hydroxides, are removed from solutions by removing at least a part of the solution liquid and stirring and cooling this part while in the metastable state until a crystallization of the metallic... | 11/05/1996 |
| 5090965 | Process for the separation of substances by cooling crystallization In the process for the separation of substances by cooling crystallization, the mixture remaining in the crystallizer after separation of the crystal layer is removed and the crystal layer is melted. The process is distinguished in that the mixture, which... | 02/25/1992 |
| 4632809 | Apparatus for the crystallization/separation of material mixtures A crystallization/separation apparatus is disclosed for material mixtures having vertical crystallization column, cooling and heating devices, feeding-in and withdrawal connections, pumps, valves, connecting conduit tubings and drive motor, a cylindrical ... | 12/30/1986 |
| 4623372 | Crystallization process An improved crystallization process is disclosed for separating a crystallizable material and an excluded material which is at least partially excluded from the solid phase of the crystallizable material obtained upon freezing a liquid phase of the materi... | 11/18/1986 |
