タグ「reactor」
Author: A.I. Egorov, B.Ya. Galkin, R.I. Lyubets, V.Ya Mishin, V.K. Isupov, G.N. Popova
Reference: Patent, 10.07.2000, Gatchina patent holder: B.P. Konstantinov Institute of nuclear physics, St. Petersburg RAS, V.G. Khlopin Radium Institute
Keywords: zirconium, treatment, extraction, reactor
Abstract: The invention relates to retrieving of zirconium from shell of fuel elements and other parts, exposed to zirconium, of a nuclear reactor, providing also a method of treatment of zirconium before its reuse. The Method includes operations of dissolving alloy, zirconium extraction into an organic solvent, and re-extraction of the purified zirconium and its precipitation from aqueous phase. The operation is conducted under temperature of 100~130℃. The components of the solution are the following: HNO3: 300-800kg/m3, K2Zr (Hf) F6: 5-32 kg/m3, water.
URL: http://www.findpatent.ru/patent/215/2152651.html
Author: V.I. Gusarov, V.V. Prozorov, A.A. Lysenko, Yu.I. Slepokon, V.A. Doilnitsyin, A.V. Oblogin, A.N. Bukreyev
Reference: Patent, 27.12.2002, Sosnovyi Bor patent holder: Kursk atomic station
Keywords: internal surfaces, circuit, decontamination, nitric acid solution
Abstract: The invention relates to nuclear power engineering, and can be applied for removal of radioactive contamination from internal surfaces of circuit of nuclear power plants. The method includes treatment of energy equipment, using nitric acid solution (45-100ml/l) at a temperature of 80-100C for 5-17 hours.
URL: http://www.findpatent.ru/patent/219/2195728.html
Author: A.M. Aleshin, B.A. Gusev, V.M. Krasnoperov, I.S. Orlenkov, S.M. Kovalev, E.P. Kozlov, V.M. Tishkov, S.N. Kharakhnin
Reference: Patent, 30.10.2006 patent holder: State enterprise scientific-research centre of technology named after A.P. Aleksandrov, The Federal State unitary enterprise ‘Russian state concern for generation of electric and thermal power at nuclear power plants’ (Rosenergoatom)
Keywords: primary circuit, equipment, cleaning
Abstract: The invention can be applied for the deactivation of equipments of the primary circuit of a nuclear power plant. The deactivation is conducted in the presence of chemical reagents
URL: http://www.findpatent.ru/patent/233/2331125.html
Author: A.S. Kozyrev, A.I. Timashov, E.M. Zelentsov, N.A. Mikhailova, V.Ya Elizarov
Reference: Patent, 10.04.2001, Tomsk patent holder: Siberian chemical combine
Keywords: plant, apparatus, decontamination
Abstract: Decontamination of surfaces of equipment contaminated by radionuclides. May be applied for decontamination of various operations of a radiochemical plant. Solutions of oxidizing and complexing agents are poured alternately onto the object, then it is heated and kept at the heated temperature. The method contains several cycles of treatment.
URL: http://www.findpatent.ru/patent/216/2165111.html
Author: V.I. Polyakov, Yu.E. Shtynda
Reference: Patent, 20.12.1998, Obninsk patent holder: Russian State Scientific Center – Research Institute of Atomic Reactors
Keywords: fast breeder reactor, coolant, cleaning
Abstract: The invention relates to nuclear power and can be used for the decommissioning of a fast breeder reactor. The invention reduces the amount of waste and makes the recycling of resource of exhaust sodium possible, while ensuring the safety of the process with a minimum of energy consumption and exposure on personnel. This result is achieved by the sodium coolant cleaning all hazardous radiation nuclides and inactivate impurities to levels lower than the control level, directly in the circuit of the reactor.
URL: http://www.findpatent.ru/patent/212/2123732.html
