REFRATECHNIK HOLDING GMBH Patent applications |
Patent application number | Title | Published |
20160122248 | FIREPROOF PRODUCT CONTAINING GRAPHITE, METHOD FOR PRODUCING SAID PRODUCT, AND USE OF SAID PRODUCT - A molded, fireproof product, which contains graphite, in particular natural graphite, and is based on fireproof granular materials. The granular-material grains of the product are consolidated to form a molded body by means of a binder known per se and/or ceramic bonding. The product has a homogeneous mixture of at least two graphite types, which each have a different coefficient of thermal expansion. One graphite type is predominant by amount and the other graphite type acts as an auxiliary graphite type. The invention further relates to a method for producing a product and to the use of the product. | 05-05-2016 |
20150376060 | GEOPOLYMER-BINDER SYSTEM FOR FIRE CONCRETES, DRY FIRE CONCRETE MIX CONTAINING THE BINDER SYSTEM AND ALSO THE USE OF THE MIX - An alkaline-activated binder system for fire concretes includes at least one mineral binder and a mineral activator which, in a mixture with water, form a curing geopolymer, where a combination of at least two magnesium components (Mg components) which give an alkaline reaction with water and react with the binder at different times to form a geopolymer is present as activator, where the magnesium components have a different reactivity in respect of atmospheric moisture and/or in respect of the binder. A dry fire concrete mix contains the binder system and the mix may be used in, for example, facilities in the steel industry. | 12-31-2015 |
20150175488 | FLAME-RETARDANT PRODUCT AND USE THEREOF - A flame-retardant batch, and the use thereof, primarily contains—at least 30% by weight of a coarse-grain olivine raw material with a forsterite content of, e.g. at least 70% by weight and having grain sizes of, e.g. 100% by weight over 0.1 mm, —at least 35% by weight in magnesia in meal form with grain sizes of, e.g. 100% by weight. | 06-25-2015 |
20140261113 | Process Using Non-fired Refractory Products As A Lining of Large-Volume Industrial Furnaces And Industrial Furnaces Lined With The Non-fired Refractory Products - There is a process for creating graphite free non-fired refractory products, which are molded using presses and which includes using a plurality of different binders. The binders comprise a first binder for binding grains of granulation between room temperature and 400° C., a second binder binding the grains of granulation between 300 and 900° C.; and a third binder binding granulations of the refractory materials that enter into ceramic binding at temperatures above 900° C. This process is for producing at least one of magnesia chromite bricks, magnesia spinel and spinel bricks, magnesia zirconia and magnesia zircon bricks, magnesia hercynite and magnesia galaxite bricks, dolomite, dolomite-magnesia, and lime bricks, forsterite and olivine bricks, magnesia forsterite bricks, magnesia pleonast bricks, magnesia bricks. These products are configured to operate as a fire-side, refractory lining of large-volume industrial furnaces operated with an essentially oxidizing atmosphere, for the production of cement, lime, magnesia, and doloma. | 09-18-2014 |