Inorganic spherogranulated composite sorbents based on zirconium hydroxide: method of its production

Author: L.M. Sharygin, V.E. Moiseyev, A.Yu. Muromsky, V.I. Barybin

Reference:  Patent, 10.06.1998, patent holder: L.M. Sharygin

Keywords: liquid, decontamination

Abstract: The invention relates to sorbents used for cleaning dynamically liquids from radionuclides. Summary: spherogranulated inorganic composite sorbent contains mixed hexacyanoferrate metal composition of

in which are MI – Li +, Na +, K +, NH +4 or a mixture thereof, MII – Mn2 +, Fe2 +, Co2 +, Ni2 +, Cu2 +, Zn2 +, Cd2 +, or mixtures thereof, x = 0 – 3.6, in an amount of 5 – 54 wt. % and water in an amount of 0 – 48 wt.%, determined by drying at 110oC.

URL: http://www.findpatent.ru/patent/211/2113024.html

Method of preparation of molybdenum items, using molten electrolysis

Author: O.N. Vinogradov-Zhabrov, V.A. Mezhuev, G.G. Potoskaev, V.I. Kadantyr, V.S. Kurskov, M.F. Volkov, G.A. Panov

Reference: Patent, 27,12,1998, patent holder: Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences,

Open Joint Stock Company “Machine-Building Plant”

Keywords: molybdenum, decontamination, raw materials

Abstract: The invention allows to create technology of mass production of high-quality　molybdenum products, using molybdenum scrap. It makes the use of raw materials, contaminated by radionuclides, and its converting into ecologically clean products, possible.

URL: http://www.findpatent.ru/patent/212/2124074.html

Methods of chemical deactivation of surface of metal articles, contaminated with radioactive materials

Author: I.M. Kosareva, M.K. Savushkina, N.N. Egorov, H.S. Yanovskaya, S.V. Savushkin, A.N. Egorov, M.E. Poroifov

Reference: Patent, 17.06.1999, Moscow patent holder: I.M. Kosareva, M.K. Savushkina, N.N. Egorov, H.S. Yanovskaya, S.V. Savushkin, A.N. Egorov, M.E. Poroifov

Keywords: metal, decontamination, liquid

Abstract: The invention relates to nuclear technology, especially chemical decontamination of radioactive-contaminated substances from products made of steel, non-ferrous metals and their alloys. Treatment at 20 ~ 95oC for 1 – 24 hours with an aqueous decontaminating solution, containing carboxylic acid, for which acidic wastes of production of caprolactam is used.

URL: http://www.findpatent.ru/patent/213/2132579.html

SORPTIVE BLOCK FOR REMOVAL OF LIQUID RADIOACTIVE WASTE

Author: R.A. Penzin, A.S. Borisov, A.N. Pantyukhin, V.P. Tarasov

Reference: Patent, 10.01.1998, US patent holder: R.A. Penzin, A.S. Borisov

Keywords: liquid radioactive waste, disposal

Abstract: The invention relates to chemical engineering, specifically to the nuclear ecology, and can be used in the treatment of liquid radioactive waste resulting from the operation of various atomic power units, such as nuclear power plants and vehicles (nuclear-powered icebreakers, submarines, floating NPP. In the process of the nuclear power cycle, various types of liquid radioactive waste are produced, which later must be processed, with a view to their subsequent disposal, in a compact solid form.

URL: http://www.findpatent.ru/patent/210/2101072.html

Method of decontaminating radioactive metal waste

Author: G.A. Petrov, I.C. Suvorov, I.A. Sobolev, S.A. Dmitriev, E.M. Timofeev

Reference: Patent, 15.10.2002, Moscow patent holder: Moscow State Enterprise – Joint Environmental-Technological Research Center for the disposal of radioactive waste and the protection of the environment (SIA “Radon”)

Keywords: disposal, radioactive metal, waste

Abstract: The invention relates to environmental protection, in particular to the field of processing and utilization of radioactive metal waste.　

URL: http://www.findpatent.ru/patent/223/2231843.html

Cleaner for removing radioactive and toxic metals

Author: M.V. Rudomino, N.I. Krutikova, V.N. Klochkov, N.V. Goryachev, A.G. Vozhakin, V.V. Bubnov

Reference: Patent, 10.05.1998, Moscow patent holder: VET “Plus” – Enterprise organization “Foundation for social and labor rehabilitation of persons with disabilities”

Keywords: decontamination, fabric materials

Abstract: The invention is intended to decontaminate fabric materials including linen and special clothing. Cleaner comprises surfactant, sodium tripolyphosphate, sodium nitrilotrimetilfosfonat, electrolyte and water.

URL: http://www.findpatent.ru/patent/211/2110859.html

Method for processing sodium coolant of nuclear reactor

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

Tubular filter

Author: F.A. Lifanov, V.A. Gorbunov, M.A. Polkanov, N.V. Savenkov

Reference: Patent, 27.09.2002, Moscow patent holder: Moscow State Enterprise – Joint Environmental-Technological Research Center for the disposal of radioactive waste and the protection of the environment (SIA “Radon”)

Keywords: gas, radiation dust, decontamination

Abstract: The invention relates to the purification of gases from radioactive dust.

Summary of invention: tubular filter contains corps, camera with gas, containing dust, and a removable camera with purified gas, separated by tubular lattice. The camera with gas, containing dust, has an inlet pipe, a dust hopper with dust discharging hopper and a device for tensioning the tube.

URL: http://www.findpatent.ru/patent/219/2190271.html

Methods for decontaminating surface dirt items from metal alloys or its fragments

Author: V.E. Tikhomirov, D.V. Tikhomirov

Reference: Patent, 17.08.2011, Moscow, patent holder: V.E. Tikhomirov

Keywords: metal decontamination, reduce waste, high efficiency

Abstract: The invention is related to methods for chemical decontamination of metal contaminated by radionuclides. The method of decontaminating surface of metal alloy, or its fragments, consists of application of reagent containing potassium, sodium and sulfur, subsequent heating of surface, its cooling, and purification from formed oxide scale. The invention improves the efficiency of the decontamination process, also reducing the time of deactivation and the amount of radioactive waste.

ＵＲＬ：http://www.findpatent.ru/patent/247/2474899.html

Nano-sized colloidal-steady sorbent for decontamination of bulk solids, and methods for decontaminating the bulk solids with its use

Author: S.Yu. Bratskaya, V.A. Avramenko, V.I. Sergienko, Yu.P. Korchagin

Reference: Patent, Vladivostok, 11.1.2010,  patent holder: Institution of the Russian Academy of Sciences, Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences

Keywords: colloidally-stable nanosorbent, strontium, soil

Abstract: Decontamination of radio-strontium. The proposed colloidally-stable nano sorbent represents reaction product combined with an equivalent amount of calcium cations, or a mixture of barium and sulfate anions in a medium stable emulsion of copolymers of acrylic acid with a particle size of not more than 500 nm. The new nanosorbent is a mobile-selective sorbent, for decontamination of radionuclides strontium, capable, due to its small size of the particles, of penetrating into the pore space of soil, providing efficient extraction of radionuclides.

URL: http://www.findpatent.ru/patent/242/2427419.html