Class 65/20 - Foaming of slag

Subclass of Class 65 - Glass manufacturing
Definition: Processes which include the step of contacting molten slag
No. of patents: 27
Last issue date: 03/28/2006

Number	Title	Issue Date
7017371	Method for producing a glass Glass produced on basis of a raw material in form of a mixture of mainly mineral-containing components comprising sludge from e.g. purification plants and waste products from the industry, and having a determined chemical composition adjusted on basis of knowledge o...	03/28/2006
6945077	Method for treating steel plant slag A method is presented for the treatment of slag from electric steel plants which comprises the following steps: (a) transference of the slag into a metallurgical receptacle; (b) defoaming of the slag in this metallurgical receptacle by adding a defoaming agent, pref...	09/20/2005
6395054	Process for producing pozzolanes, synthetic blast furnace slags, belite or alite clinkers, or pig iron alloys from oxidic slags A process that produces pozzolanes, synthetic blast furnace slags, belite, or alite clinkers, as well as pig iron alloys, from oxidic liquid slag. The oxidic liquid slag is reduced above an iron bath in a reactor containing submerged tuyeres. Carbon is bl...	05/28/2002
6375711	Steelmaking using magnesium carbonate The present invention provides methods and compositions for steelmaking using magnesium carbonate to create a foaming primary slag....	04/23/2002
6375701	Method of judging slag forming state in electric furnace steel production and method of operating electric furnace The state of slag foaming generated in an electric furnace steel manufacture is judged by measuring the NOx amount in exhaust gas. The foaming state is adjusted to completely interrupt the contact of melted steel with air so that low nitrogen o...	04/23/2002
6318123	Method for granulating a liquid slag bath and device for carrying out the method The method for granulating liquid slag melts, in particular blast furnace slag, in which the melt (2) is ejected into a cooling chamber via a slag tundish (1) and in which fluid under pressure, in particular compressed gas, vapor or pressurized water, is ...	11/20/2001
6245123	Method of melting oxidic slags and combustion residues The process for melting oxidic slags and combustion residues having a minimum content of metallized portions such as, e.g., iron and/or carbon carriers, of 3% by weight is carried out in a shaft furnace directly heated by means of fossil fuels via burners...	06/12/2001
5983671	Apparatus and method for manufacturing foamed material An apparatus and method for the preferably continuous manufacture of foamed material using a furnace are provided. A two-part mold mechanism is provided that includes an upper portion and a lower portion that are each endless loops and cooperate with one ...	11/16/1999
5944861	Process and apparatus for making expanded slag Metallurgical slag is expanded to produce a lightweight solid by forming a stream of molten liquid slag of controlled rate of flow and mixing the stream of slag with a controlled quantity of water and flowing the interacting mixture of slag and water into...	08/31/1999
5588977	Method of producing glass materials from ash-slag waste A method of obtaining glass materials from ash-slag. Waste wherein the waste is heated to a melting point temperature and melted in a reducing medium. The obtained melt is cooled by a thermal shock to form a foamed glass material. Prior to heating the cha...	12/31/1996
4995894	Enclosures for slag pelletization apparatus and method of operation An enclosure for slag pelletizers, and a method of operating such an enclosure, that minimizes the escape into the ambient atmosphere of airborne fibres produced by the pelletization process, while permitting the necessary free passage of the steam and ga...	02/26/1991
4886539	Method of vacuum refining of glassy materials with selenium foaming agent In a method of vacuum refining molten glass or the like, selenium is provided in the molten glass to serve as a foaming agent, which yields improved refining. Alternatively, colored glass compositions that include selenium as a colorant are refined at hig...	12/12/1989
4882303	Modified steel slag and method of manufacturing the same A steel slag or iron slag which is a by-product generated at the time of steel or iron metallurgy and a method of manufacturing the same are disclosed. This slag is characterized in that it contains at least 0.15 wt % of boron component in the form of B	11/21/1989
4277273	Treatment and handling of metallurgical slag Disclosed is an installation for the treatment and handling of metallurgical slag which includes means for the disintegration of a flow of pyroplastic slag by mechanical impacts and cooling means for the cooling of the particles of slag formed by the disi...	07/07/1981
4191546	Process of making a blistered, crystallizable glass material A process is disclosed for making a blistered, crystallizable glass material in a rotary kiln with simultaneous utilization of mineral-containing waste products, particularly fly ash, slag, and ashes from power works and refuse disposal plants, and sludge...	03/04/1980
4179275	Method of expanding metallurgical slag Molten metallurgical slags are expanded by contact with water in a liquid or vapor state by passing the molten slag along a prefoaming or expanding trough by delivering the slag to this trough via an intermediate trough which is shiftable along the prefoa...	12/18/1979
4171965	Method of making granulated slag Slag sand is produced by first mixing a stream of molten slag with a quantity of between 0.5 m3 and 0.7 m3 of water per ton of slag to chill the slag while leaving it above the pyroplasticity threshold. Thereafter water at a rate of ...	10/23/1979
4165233	Treating molten metallurgical slag The invention relates to a method and compositions for modifying the physical and/or chemical characteristics of metallurgical slags and cinders by injection into the latter, during pouring in the molten state, between the ladle and the cooling pit. These...	08/21/1979
4153440	Treatment of metallurgical slag Disclosed is a process for the treatment of metallurgical slag, the process comprising mechanical disintegration of a current of pyroplastic slag formed by initial cooling of a current of melting slag by means of water. This cooling comprises a first cool...	05/08/1979
4152131	Device for improving expansion of metallurgical slag and cinder before granulation and method for using same A device for expanding slag and cinder comprises a channel for carrying molten slag and provided with a lip serving as a spreader to spread out the melt in the form of a thin sheet, the lip being cooled internally; an inclined hollow cooling element const...	05/01/1979
4123247	Apparatus for expanding metallurgical slag Molten metallurgical slags are expanded by contact with water in a liquid or vapor state by passing the molten slag along a prefoaming or expanding trough by delivering the slag to this trough via an intermediate trough which is shiftable along the prefoa...	10/31/1978
4110098	Molten glass refining apparatus The improvement in an apparatus for refining glass being fed along a channel wherein the molten glass is foamed throughout its thickness, the improvement involving an increase in the width of the channel at the location of foaming. Also, the channel is pr...	08/29/1978
4082252	Method and system for processing molten slag A method and system for processing molten slag is characterized in that molten slag is first spread onto a slag receiving means which is substantially made of a steel plate of desired thickness and is tiltably mounted on the floor of a roofed slag process...	04/04/1978
4046542	Method and device for granulating blast furnace slag This invention relates to a method for granulating blast furnace slag, in which, by means of watersprays, slag which is supplied through a slag chute into an open explosion room, is first granulated, whereupon the water-granules mixture is transported to ...	09/06/1977
4042410	Method for defoaming molten slag A method for defoaming molten slag by throwing onto the bubbling surface of the slag a molding consisting of 17-72% by weight of organic material, 20-80% by weight of refractory material and 3-15% by weight of a binder to dissipate the formed bubbles....	08/16/1977
3951632	Method for manufacture of foam glass A foam glass is manufactured by mixing silicate glass, a volcanic glass material (volcanic ashes of a special chemical composition, occurring in the Kyushu District of Japan), water glass and at least one member selected from the group consisting of sodiu...	04/20/1976
3941585	Process for cooling slag and inhibiting pollutant formation A process for cooling sulfur-bearing slag while inhibiting the formation of hydrogen sulfide. An oxidant is mixed with the cooling water and the slag is brought into contact therewith, the solution cooling the slag to permit handling thereof while the oxi...	03/02/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 65/20 - Foaming of slag