| Patents for C22B 9 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals (7,765) |
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| 10/24/1989 | US4875985 Method and appparatus for producing titanium |
| 10/10/1989 | US4872908 Metal treatment |
| 10/05/1989 | WO1989009291A1 Electro-slag casting apparatus and method |
| 10/04/1989 | EP0335122A2 Device and procedure for controlling and monitoring electron beam for processing metals |
| 10/04/1989 | EP0335042A1 Improved cooling system and method for molten material handling vessels |
| 10/04/1989 | CN1036073A Improved cooling system and method for molten material handling vessels |
| 09/26/1989 | US4870655 Apparatus for recovery of metallics and non-metallics from spent catalysts |
| 09/26/1989 | US4869750 Baffle to cause agglomeration of particles |
| 09/26/1989 | CA1261620A1 Apparatus for introducing treatment substances into liquids |
| 09/20/1989 | EP0333586A1 Apparatus for removing gaseous and solid impurities from a molten product contained in a vessel |
| 09/19/1989 | US4867422 Rotary device, apparatus and method for treating molten metal |
| 09/13/1989 | EP0332292A1 Rotary device, apparatus and method for treating molten metal |
| 09/12/1989 | US4865696 Recovery of metal chlorides from their complexes by molten salt displacement |
| 09/12/1989 | US4865695 Preparation of complexes of zirconium and hafnium tetrachlorides with phosphorus oxychloride |
| 09/12/1989 | US4865694 Distillation |
| 09/12/1989 | US4865693 Preparation of complexes of zirconium and hafnium tetrachlorides with phosphorus oxychloride |
| 09/12/1989 | CA1259196A1 Method for eluting a metal adsorbed on an chelating agent |
| 09/08/1989 | WO1989008153A1 Process for implementing reducing pyrometallurgical processes with pellets |
| 08/30/1989 | EP0330335A1 Precious metal refining |
| 08/29/1989 | US4861370 Process for treating molten aluminum alloy with powdered flux |
| 08/29/1989 | US4861001 Melting retort and method of melting materials |
| 08/23/1989 | EP0328613A1 Metallurgical controlling method |
| 08/23/1989 | EP0214268B1 A method for working-up waste products containing valuable metals |
| 08/22/1989 | US4859293 Making gold iodide solution in electrolytic cell; basification, reduction, precipitation |
| 08/17/1989 | DE3803720A1 Metal melt treatment |
| 08/10/1989 | WO1989007157A1 Improved metallurgical injection lance |
| 08/08/1989 | US4854968 Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor |
| 08/08/1989 | US4854553 Self shielding lance |
| 08/08/1989 | CA1258220A1 METHOD FOR THE DISPERSION OF HARD .alpha. DEFECTS IN INGOTS OF TITANIUM FOR TITANIUM ALLOY AND INGOTS PRODUCED THEREBY |
| 08/02/1989 | EP0325862A2 Additive for promoting slag formation in steel refining ladle |
| 08/01/1989 | US4853033 Method of desulfurizing molten metal in a plasma fired cupola |
| 07/27/1989 | WO1989006706A1 Heat resistant composite and method of making the same |
| 07/25/1989 | US4850573 Induction melting |
| 07/18/1989 | US4849016 Combined ultra slow electron beam and vacuum arc melting for barrier tube shell material |
| 07/18/1989 | US4849013 Combined electron beam and vacuum arc melting for barrier tube shell material |
| 07/18/1989 | US4848751 Lance for discharging liquid nitrogen or liquid argon into a furnace throughout the production of molten metal |
| 07/12/1989 | EP0178310B1 Pneumatic charger for feeding pulverized and granular materials into metal melts |
| 07/05/1989 | EP0322763A2 Method for cleaning molten metal and apparatus therefor |
| 07/04/1989 | US4844747 Process of producing a composite roll |
| 07/04/1989 | US4844736 Method for the preparation of finely divided metal particles |
| 07/04/1989 | CA1256694A1 Rotary device, apparatus and method for treating molten metal |
| 06/29/1989 | DE3742765A1 Sodium melt-treatment preparation |
| 06/28/1989 | EP0321689A2 Device for a thermometer or for a gas bubbling lance for liquid metals or the like, especially for aluminum |
| 06/28/1989 | CN1033529A Process for continuously melting scrap as well as apparatus for performing this process |
| 06/27/1989 | US4842643 Apparatus for, purifying a melt, which, besides one or more impurities, essentially contains a light metal, in particular aluminum |
| 06/27/1989 | US4842642 Additive for promoting slag formation in steel refining ladle |
| 06/27/1989 | US4842254 Apparatus for purifying lithium |
| 06/21/1989 | EP0321443A2 Process and installation for continuously melting scrap |
| 06/21/1989 | EP0320730A2 Process for making zirconium for use in liners of reactor fuel elements |
| 06/20/1989 | US4840356 Externally replaceable stirring plug for molten metal vessels |
| 06/15/1989 | DE3815664C1 Gas bubble brick for metallurgical vessels and method for its manufacture |
| 06/14/1989 | EP0320457A1 Process for the partial coating of the surface of a porous ceramic body |
| 06/13/1989 | US4839904 Apparatus for the melting of metals |
| 06/07/1989 | EP0318881A1 Melting furnace for the production of ingots made by continuous casting in a protective atmosphere |
| 06/07/1989 | CN1004425B Improved technology for metal refining by fractional crystallization |
| 06/06/1989 | US4837385 Applying electromagnetic force field |
| 06/06/1989 | US4836433 Device for introducing stirring gas into molten metal in metered amount |
| 05/30/1989 | USRE32932 Cold hearth refining |
| 05/30/1989 | US4835701 Post-mix method and system for supply of powderized materials |
| 05/30/1989 | CA1254718A1 Purification of cd and te by zone refining |
| 05/24/1989 | EP0316580A1 Process for making ultra-pure zirconium alloys for liners of nuclear fuel elements |
| 05/18/1989 | WO1989004379A1 Microwave irradiation of mineral ores and concentrates |
| 05/16/1989 | US4830816 Getter trap for removing hydrogen and oxygen from a liquid metal |
| 05/10/1989 | EP0314981A1 Process for production of smelting material containing copper, chromium and at least one volatile component and consumable electrode for use in such a process |
| 05/09/1989 | US4828814 Extraction of impurities by migration into molten purifying agent |
| 05/09/1989 | US4828609 Method to protect the surface of metal in vertical melting furnaces |
| 05/09/1989 | US4828608 Small diameter stream of liquefied metal, high vacuum heating to vaporize volatiles |
| 05/09/1989 | US4828607 Replacement of coke in plasma-fired cupola |
| 05/03/1989 | DE3735835A1 Method of reducing the consumption of process gas |
| 05/03/1989 | CN1004081B Process and apparatus for purifying lithium |
| 04/25/1989 | US4824364 Non-ferrous metal smelting furnace |
| 04/18/1989 | US4823358 High capacity electron beam cold hearth furnace |
| 04/18/1989 | US4821791 Melting furnace for producing strand-cast ingots in a protective gas atmosphere |
| 04/11/1989 | US4820485 Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen |
| 04/11/1989 | US4819918 Apparatus for the protection of a liquid against the effects of oxygen from the surroundings |
| 04/11/1989 | CA1252292A1 Ceramic foam |
| 04/05/1989 | EP0309518A1 Improvements in sealing injection apparatus for injecting substances into molten metals |
| 04/05/1989 | EP0309517A1 Devices and apparatus for injecting gas into high temperature liquids, e.g. molten metals |
| 04/04/1989 | US4817919 Device for casting, particularly converter for casting and/or post-treating molten metal |
| 04/04/1989 | US4817918 Apparatus for filtering molten scraps of metal for regeneration |
| 03/30/1989 | DE3728526C1 Method for minimising the process gas consumption in metallurgical processes |
| 03/28/1989 | US4816214 Ultra slow EB melting to reduce reactor cladding |
| 03/28/1989 | US4815715 Gas purging assembly for supplying gas to molten metal in a metallurgical vessel |
| 03/28/1989 | US4815521 Method of producing composite steel body shaft |
| 03/23/1989 | WO1989002480A1 Method for reduction of metal from metal-containing material |
| 03/21/1989 | US4815096 Cooling system and method for molten material handling vessels |
| 03/21/1989 | US4814003 To vaporize or melt metals |
| 03/21/1989 | CA1251328A1 Purification of liquid metals |
| 03/14/1989 | US4811782 Injection of metals as plasma into cast iron and steel melts |
| 03/09/1989 | WO1989001986A1 Method for refining aluminium alloys |
| 03/09/1989 | WO1989001982A1 Process and device for minimizing process gas consumption in metallurgical processes |
| 02/28/1989 | US4808222 One-package; red phosphorus, magnesium carbonate, potassium hexafluorosilicate |
| 02/28/1989 | US4808219 Electromagnetic raising and falling of melt gives vigorous mixing of added materials; alloying purification |
| 02/23/1989 | WO1989001530A1 Metallurgical controlling method |
| 02/22/1989 | EP0187777B1 Device for the injection of gases into molten metals and minerals |
| 02/21/1989 | US4806156 Process for the production of a bath of molten metal or alloys |
| 02/15/1989 | EP0303285A1 Tuyere assembly and positioning method |
| 02/15/1989 | EP0302914A1 Devices and apparatus for injecting gas into high temperature liquids, e.g. molten metals |
| 02/15/1989 | CN2032623U Smelting furnace for electroslag remelting low hydrogen containing steel ingot |
| 02/15/1989 | CN1003311B Method for preparation ofultra-pure frequency standard caesium |