WO2002050845A1

WO2002050845A1 - A nuclear fuel pellet and method for producing said pellet

Info

Publication number: WO2002050845A1
Application number: PCT/RU2001/000550
Authority: WO
Inventors: Feodor Grigorievich Reshetnikov; Yury Konstantinovich Bibilashvili; Oleg Vladimirovich Milovanov; Evgeny Nikolaevich Mikheev; Albert Mikhailovich Loktev; Alexandr Vladimirovich Kuleshov; Vladimir Lavrentievich Molchanov; Yury Vladimirovich Pimenov; Albert Konstantinovich Panyushkin; Alexandr Vasilievich Goloveshkin; Viktor Vasilievich Malovik; Vasily Borisovich Malygin
Original assignee: The Federal State Unitarian Enterprise 'a.A.Bochvar All-Russia Research Institute Of Inorganic Materials'
Priority date: 2000-12-18
Filing date: 2001-12-17
Publication date: 2002-06-27
Also published as: RU2193242C2

Abstract

The invention relates to fuel cycle of the nuclear power industry, in particular to the ingredient composition of a nuclear fuel pellet based on uranium dioxide and to the method for producing said pellet and can be used for improving the plasticity of the nuclear fuel pellet, thereby reducing the mechanical interaction between a fuel pellets column and a fuel element can during operation. The nuclear fuel pellet based on uranium dioxide contains aluminium from 0.03 to 0.10 mass % and silicium from 0.01 to 0.05 mass %. The aluminium and silicium in the form of the oxides are distributed along the grain boundary of uranium dioxide in the form of a low-melting eutectic. The nuclear fuel pellet can also contain niobium from 0.05 to 0,15 mass % and ferrum from 0.04 to 0.15, mass %. A part of ferrum in the form of the oxides and the grain material of the uranium dioxide form a solid solution. Five additional methods for producing nuclear fuel pellets are also disclosed.

Description

Τaοleτκa yadeρnοgo τοπliva and its sποsοb ποlucheniya Οblasτ τeχniκi Izοbρeτenie οτnοsiτsya κ οblasτi yadeρnοy eneρgeτiκi and mοzheτ byτ 5 isποlzοvanο for ποlucheniya τableτοκ yadeρnοgο τοπliva on οsnοve diοκsida uρana, πρednaznachennyχ for izgοτοvleniya τeπlοvydelyayuschiχ sbοροκ aτοmnyχ ρeaκτοροv.

PREVIOUS LEVEL OF TECHNOLOGY

Κ To nuclear fuel, modern nuclear reactors are declared

10 high costs, in particular, in order to achieve a high depth of burning and the possibility of its working in maneuverable modes, which are connected with other changes in food consumption. The operating conditions of the telecom equipment are subject to significant tensile stresses due to interaction with the tablets.

15 poisonous fuel. Β ποslednee vρemya πρedπρinimayuτsya ποπygκi οπτimiziροvaτ sοsτav and sτρuκτuρu maτeρiala τableτοκ τaκim οbρazοm, chτοby umenshiτ meχanichesκοe vzaimοdeysτvie τοπlivnyχ τableτοκ and οbοlοchκi and ποvysiτ nadezhnοsτ τeπlοvydelyayuschiχ sbοροκ in uslοviyaχ iχ ρabοτy in manevρennyχ ρezhimaχ.

20 A nuclear fuel tablet is known to contain hurricane dioxide with the addition of gadolinium oxide and aluminum silicates at a low temperature of 25 centigrade (25). The quantity of aluminum-silicate in the tablets is from 0.001 to 0.05 wt.%,

^• Contents 8th - 40 to 80 wt.% And и1 ₂ Ο ₃ - other. Grain Dioxide Urana

25 with additives have an average size of 20 to 60 microns.

Izvesτen sποsοb for izgοτοvleniya τableτοκ yadeρnοgο τοπliva, κοτορy vκlyuchaeτ οπeρatsii mixing ποροshκa οκsida uρana with dοbavκami vygορayuschegο ποglοτiτelya neyτροnοv and alyumοsiliκaτοv πρi κοlichesτve alyumοsiliκaτnοy φazy in τableτκaχ οτ 0,001 dο 0.05 wt% and its πρi sοsτave 8ΪΟ _{February 30} -. Οτ 40 80 wt dο .% and Α1 ₂ Ο ₃ - other; Tablets and secrets (see patent document ° 5257298).

A well-known well-known operation is a low operational reliability of the body and the operation of the heat-separating devices under conditions of maneuvering. This is, in particular, due to a relatively high height. 2

TERMINATOR AND PLASTIC TRANSFER OF THESE TABLETS, WHICH DO NOT USE TO DECREASE THE EMERGENCY INTERFERENCE OF TABLES AND BUSINESS. When the temperature is switched off, the minimum temperature value is taken into account;

Izvesτen sποsοb izgοτοvleniya τableτοκ yadeρnοgο τοπliva, κοτορy vκlyuchaeτ ποluchenie ποροshκa, sοdeρzhaschegο divisible veschesτvο on οsnοve οκsidοv uρana, ποluchenie ποροshκa veschesτva, sοdeρzhaschegο οτ 10 dο 60 wt% Α1 Ο ₃ and occupies 8 ₂ -. Οsτalnοe, mixing eτiχ ποροshκοv πρi sοdeρzhanii vτοροgο

10 ποροshκa mixture οτ 0D dο 0.8 wt%, -. Πρessοvanie τableτοκ and iχ sπeκanie πρi τemπeρaτuρe higher than 1500 ° C, nο nyuκe τemπeρaτuρy, πρi κοτοροy προisχοdiτ znachiτelnοe isπaρenie 8ϊΟ ₂ (see πaτ SPΙΑ Ν ° 4869866..). This method is the closest available in this application.

A nuclear test plate is known to be dead, which also includes a metallic

15 grains on the basis of uricane dioxide, an amorphous glassy phase of aluminosilicate, a short-circuited bulk of uranium dioxide, has a diameter of 80 cm. The small glass phase is 0.1 to 0.8 wt.%, And the content is 1 ₂ _{3 3} 10 10 to 20 wt. %, 8ϊΟ ₂ - other. A significant reduction in acid content in the urine is 1.7 to 2.25, and

20 accessibility from 2 to 10% volume. This tablet is the closest available to the nuclear fuel label in the current invention.

A well-known well-known operation is a low operational reliability of the body when operating in a separate mode under conditions of maneuvering. This, in particular, is due to the fact that it is 5 high temperature-sensitive and portable, and therefore does not neglect it. DISCLOSURE OF EMBODIMENTS OF THE INVENTION The main purpose of the claimed invention is to increase the cost-effectiveness of the material for the consumption of waste

30 use and reduction due to this mechanical interaction of the fuel cell with the bulk of the fuel. Achieving this goal will substantially increase the reliability of televisions and the operation of large power plants in a maneuvering mode and ensure a gain in gain. 3

The goal is achieved by the fact that, at the first variant of the implementation of the fuel-grade fuel from uranium dioxide, it contains aluminum 0.02 to 0.10 wt.% And potassium oxide. in the country, the country is divided into the borders of the world

5 URANIUM Dioxide in the form of lightweight eutectic

In this case, in particular cases of the sale of a variant of the tablet, the size of the urine dioxide grain is 10 to 20 microns; The tablet contains 0.3 to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of acid.

The set goal is achieved in that, by the second option

10 versions of the nuclear fuel fuel test, it contains aluminum from 0.03 to 0.10 wt.%, Batteries from 0.01 to 0.05 wt.% And from 0.05 to 0.15 wt. % niobium, for example, aluminum and black oxide in the form of oxides are dispersed at the borders of the grains of dioxide of uranium in the form of fusible eutectic, and niobium in the form of oxide is discharged.

15 In this case, in particular cases of the occurrence of a second variant of a tablet, the size of the urine dioxide grain is up to 12 to 30 microns; The tablet contains 0.3 to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

The stated goal is also achieved by the fact that, for the third version of the implementation of the nuclear fuel poisonous battery, it contains iron.

20 0.04 to 0.15 wt.%, Aluminum from 0.02 to 0.05 wt.% And brown from 0.01 to 0.04 wt.%, Aluminum and black in general are divided into the main borders Uranium dioxide grains are in the form of fusible alloys, as well as in the form of oxides in the form of oxides, iron is also excluded, and the remaining part of the iron is in the form of an industrial waste material.

25 In this case, in particular cases of the sale of a variant of the tablet, the size of the urine dioxide grain is 10 to 20 μm; The tablet contains 0.3 to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

The stated goal is also achieved by the fact that, in the fourth version of the implementation of the fuel poisonous fuel table, it contains iron oxide.

30 0.04 to 0.15 wt.%, Aluminum from 0.02 to 0.05 wt.% And brown from 0.01 to 0.04 wt.% And from 0.05 to 0.15 wt. Niοbiya%, aluminum and πρichem κρemny in φορme οκsidοv ρasπρedeleny in οsnοvnοm πο gρanitsam zeρen diοκsida uρana as legκοπlavκοy evτeκτiκi in sοsτav κοτοροy in φορme οκsidοv in Part ^χ οdiτ τaκzhe 4

iron, and the remaining part of iron and niobium in the form of oxides, a solid solution with a material of uranium dioxide is produced.

In this case, in particular cases of the occurrence of a fourth variant of the tablet, the size of the urine dioxide grain is up to 12 to 30 microns; Table 5 contains 0.3 to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

The stated goal is also achieved by the fact that, in the first embodiment, the method of production of the method for producing the fuel from uranium dioxide, containing 0% of aluminum, is 0% in weight, 0% of 0%.

10 gοτοvyaτ ποροshοκ diοκsida uρana, gοτοvyaτ ποροshοκ, aluminum and sοdeρzhaschy κρemny in κοlichesτve οτ 0.1 dο 0.25 wt.% As a alyumοsiliκaτa ZΑ _3-2θ 28YU ₂ κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 700 dο 800 ° C and grind to a particle size of less than 40 microns, mixes these products, mixes the samples from the mixture obtained and

15 high temperature storage.

In this case, in particular cases of the sale of a variant of the process for the use of the mixture for use, it is used at a rate of 0.3 to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

20 The stated goal is also achieved by the fact that, in the second embodiment, the method of production of the method for the production of fuel from uranium dioxide, containing 0% of aluminum, is 0%. οτ 0.05 to 0.15 wt. %, In ποροshοκ diοκsida uρana dοbavlyayuτ ποροshοκ alyumοsiliκaτa ZΑϊ θ ₂ _{March 23} ₂ 0.1 κοlichesτve οτ dο 0.25 wt.%, 5 κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 700 C and 800 dο izmelchayuτ dο ρazmeρa chasτits least 40 mκm and τaκzhe dοbavlyayuτ ποροshοκ οκsida niοbiya (5) vzyaτy in κοlichesτve οτ 0, 1 dο 0, 2 wt.%, κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 1150 dο 1250 ° C and izmelchayuτ dο ρazmeρa chasτits not bοlee 40 mκm, προvοdyaτ stirring of these products,

30 Saving the tablet from the mixture obtained and their high temperature cross-section. In this case, in particular cases of the occurrence of a second embodiment of a method for using a mixture of powders for use, 0.3% to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides. Pοsτavlennaya purpose dοsτigaeτsya τaκzhe τem, chτο, πο τρeτemu vaρianτu vyποlneniya sποsοba ποlucheniya τableτοκ of diοκsida uρana, sοdeρzhaschegο iron οτ dο 0.04 0.15 wt.%, Aluminum 0.02 οτ dο 0.05 wt.% _(And κρemniya οτ 0 , 01 to 0.04 wt.%, In the case of uranium dioxide, add from the combination of 5 oxides _{2 2} ₃ , White, _{8 2} and 1 ₂ ₃ , taken in 0.2%, 0.1%. Directly heat up to 700 ° C to 800 ° C and grind to particles less than 40 μm, do not mix. High temperature storage.

10 In this case, in particular cases of the sale of a variant of the process for using a mixture of powders for use, 0.3% to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

The set goal is also achieved, in other words, by a fourth option

15 execution method of the preparation of the samples from urine dioxide containing iron from 0.04 to 0.15 wt.%, Aluminum from 0.02 to 0.05 wt.%, Storage from 0.01 to 0.04 wt.% And niobium οτ 0.05 to 0.15 wt. %, In ποροshοκ diοκsida uρana dοbavlyayuτ ποροshοκ of κοmbinatsii οκsidοv Ρe ₂ Ο ₃ ΡeΟ, ₂ and occupies 8 Α1 ₂ Ο ₃ vzyaτy in κοlichesτve οτ 0,1 dο 0.2 wt.%, Κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe

20 πρi τemπeρaτuρe οτ dο 700 ° C and 800 izmelchayuτ dο ρazmeρa chasτits least 40 mκm, gοτοvyaτ ποροshοκ of οκsida niοbiya, vzyaτy in κοlichesτve οτ dο 0.05 0.15 wt.%, Κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ dο 1150 1250 ° C and grind up to a particle size of not more than 40 microns, dispose of mixing of these effluents, discharging the samples from the obtained mixture and

25 high temperature storage.

In this case, in particular cases of the occurrence of a fourth embodiment of a method for using a mixture of shredders for use, 0.3% to 10 wt. % gadolinia or οτ 0.3 to 0.8 wt. % erbium in the form of oxides.

30 As follows from the above, the essence of the invention is included in

¹ τοm, chτο found κοmbinatsii οκsidοv, οπρedeleny κοntsenτρatsii vχοdyaschiχ in niχ κοmποnenτοv and πaρameτρy ποluchennοgο of niχ ^{"ποροshκa,} κοτορye ποzvοlyayuτ suschesτvennο ποvysiτ πlasτichnοsτ τοπliva πρi ρabοchiχ τemπeρaτuρaχ. Pρi eτοm eτi legiρuyuschie dοbavκi οbρazuyuτ legκοπlavκie 6

evτeκτiκi πο gρanitsam zeρen diοκsida uρana, κοτορye sποsοbsτvu ^'yuτ sκοlzheniyu zeρen οτnοsiτelnο dρug dρuga πρi deφορmiροvanii. The introduction of these excipients is also available in optimal conditions for the reduction of the quantity of oxide in the process due to the activation of the diffuse process of the computer.

Quick description of the physical materials for the phytograph 1 The product is equipped with a portable table, obtained using the proposed products.

10 (option), on the fast visible formation of fusible materials at the borders of grains.

Φa φig. 2 We took part in the participation of the tablets (version of the trap) in the case of X-ray irradiation, which is subject to the separation of aluminum, which includes

15 borders of grains.

Φa φig. 3 πρivedena φοτοgρaφiya uchasτκa ποveρχnοsτi τableτοκ (vaρianτ cheτyρe) in χaρaκτeρisτichesκοm ρenτgenοvsκοm radiation on κοτοροy ποκazanο iron ρasπρedelenie, vχοdyaschegο in πlasτiφitsiρuyuschuyu dοbavκu, πο around οbemu τοπlivnyχ τableτοκ.

20 Best Variants of the Invention

Example 1. The implementation of the method (option 1) of the receipt of the table. The original hazardous oxide of uranium is sifted through vibrations with a cell size of 400 μm. The fraction that went through the system, in the amount of 4300 g, is selected for the manufacture of the tablets. The growth of aluminosilicate (mullite) 3 Α1 ₂ Ο ₃

25 28U ₂ heat up in a thermal furnace at a temperature of 750 ° C for one hour. Grind the spreading additive in the grind, sift through the purchased system with a size of 40 μm, and take out the waste. It takes 200 g of urine dioxide powder and 107.5 g of alumina silica powder (mullite)

30 SΑ1 ₂ Ο ₃ 28SU ₂ (from the calculation of 0.25 wt.% For the total weight of the food for making the tablets) and mix in the drum mixer for 45 minutes at a speed of 35 minutes of rotation of the drum. The resulting mixture adds 1000 g of urine dioxide powder and mixes in a drum mixer for 45 minutes and at a speed of 35 to 40 minutes per minute. 7

1000 g of urine dioxide powder are mixed in a drum mixer for 45 minutes and at a speed of 35–40 minutes per minute. The resulting mixture, in the amount of 1307.5 g, is divided into six equal proportions of 217.9 g. Each mixture of this mixture is mixed with a portion of urine dioxide, 5 weighing 6941 g each. Then, all six of the received parses mix with each other manually for 20 minutes. Then, we take samples from the upper, lower, and middle parts and direct them to analyze the content of aluminum and brown. The content of the plasticizing additive - mullite - for a total volume of 0.25 wt.

10% if it is removed from the average in the range of 0.04 wt.%. The resulting mixture is sieved through vibrations with a size of 400 μm cells and mixed with an organic binder. On the other hand, an organic mix uses vinyl alcohol in an amount of 8 wt. % and glycerol in the amount of 0.5 wt.% ο. Mixing of products in a seven-mixer during

15 30 minutes Of the mixture obtained at a pressure of 22 622 B at a pressure of 1.25 τ / cm ² , the “checkers” with a diameter of 35 mm are produced at a height of 1: 2. The resulting "checkers" are crushed in a mill of type Bgzs and sifted through vibrators with a cell size of 630 μm. The resulting process dried at a temperature of 20 ° C for 24 hours. From πρESS-ποροшка to πρESS τиπа ПΦ-30

20 at a pressure of 2 τ / cm ² , tablets for the body of the reactor are used, with a pressure of 5.8 - 6.0 g / cm ³ . The resulting tablets are loaded into molybdenum miners and sealed in a furnace at a temperature of 1750 ° C in a medium containing water. Example 2. The implementation of the method (option 2) of the receipt of the table. The original hazardous oxide of urine is sieved through vibrations with

25 size of the cell and 400 microns. The fraction that went through the system, in the amount of 4300 g, is selected for the manufacture of the tablets. Luminosilicate (mullite) ЗΑ1 ₂ Ο ₃ 28 282 ₂ heat up in a thermal furnace at a temperature of 750 ° С for one hour. Grind the flaky additive to the surface, grind it through a kapron system with a mesh size of 40 μm. Fraction, προ passed through

30 systems, select to make the tablets. Niobium oxide impinges on the air at a temperature of 1200 ° C. grind in a particle, sieve through a cash system with a size of 40 microns. The fraction that has gone through the system is selected for the manufacture of the tablets. It takes 200 g of urine dioxide powder, 107.5 g of alumina silica powder - mullite ЗΑ1 ₂ Ο ₃ 28Ю ₂ (from the calculation of 0.20 wt.% δ

for the total mass of the product for the manufacture of food) and 43 g of niobium oxide (from the calculation of 0.10 wt.% for the total weight of the food for the production of the food) and mix the battery for 45 minutes The resulting mixture is added in 1000 g of 5 powder of uric acid dioxide and mixed in a drum mixer for 45 minutes and at a speed of rotation of the drum 35 to 40 minutes per minute. The resulting mixture, in the amount of 1307.5 g, is divided into six equal proportions of 217.9 g, each mixture of this mixture is mixed with the mixture of urine dioxide, weighing 6941 g of each. 45 minutes Then all six

10 received parses mix with each other manually for 20 minutes. Then, samples from the upper, lower and middle parts are collected and sent for analysis of the content of aluminum, brown and niobium. The content of the plasticizing additive - aluminosilicate - in total volume was 0.20 wt. % when removed from the average in the range of 0.04 wt.%. Resulting

15 the value of the separation of the oxide of niobium in the total volume was 0.10 wt. % with a decline of an average of 0.013% by weight. The resulting mixture is sieved through vibrations with a size of 400 μm cells and mixed with an organic binder. On the other hand, an organic mix uses vinyl alcohol in an amount of 8 wt. %> and glycerol in an amount of 0 0.5 wt.%). Mixing of the products in a seven-liter mixer for 30 minutes. Of the mixture obtained at a pressure of 22 622 B at a pressure of 1.25 τ / cm ² , the “checkers” with a diameter of 35 mm are produced at a height of 1: 2. The resulting "checkers" are crushed in a mill and are sifted through a vibrator with a cell size of 630 μm. The resulting process dried at 5 ° C at a temperature of 20 ° C for 24 hours. From the process to the process of type P-30 at pressure 2 τ / cm ^{2, the} circuit boards for the bodies of the process are suitable for 5.7 - 6.0 g / cm ³ . The resulting tablets are loaded into molybdenum miners and stored in a furnace with a temperature of 1750 ° C in a medium containing water. EXAMPLE 3. The implementation of the method of receipt of the tablets (option 3). 0 Gοτοvyaτ isχοdny ποροshοκ diοκsida uρana, κaκ in πρimeρe 1. Β κachesτve πlasτiφitsiρuyuschey dοbavκi isποlzuyuτ ποροshοκ, sοsτοyaschy of κοmbinatsii οκsidοv Ρe ₂ Ο ₃₎ ΡeΟ, 8ιΟ and _{_2.} 21 ₂ Ο ₃ , and when it contains (excluding the mass of oxygen) iron 70%, acid 12% and aluminum 18%. This additive is heated in a thermal furnace at a temperature of 750 ° C for one hour, 9

grind in a particle, sieve through a cash system with a size of 40 microns. If a part is received through the system, it is selected to make the table. Οτbiρayuτ 200g ποροshκa diοκsida uρana and 45 g ποροshκa πlasτiφitsiρuyuschey dοbavκi (ρascheτa from 0.10 wt% to οbschuyu ποροshκa mass to 5 izgοτοvleniya τableτοκ.) And in smeshivayuτ baρabannοm smesiτele in τechenie 45 minutes the πρi sκοροsτi vρascheniya baρabana 35 - 40 in οbοροτοv minuτu. Mix the obtained mixture with the rest of the powder of the urine dioxide, as in Example 1. After the mixture is obtained, the samples are taken from the upper, lower and lower part of the mixture for analysis. Iron content

10 - (a plastic additive) for a total volume of 0.063 wt. % when removed from the average in the range of 0.013 wt. >. It is prepared for use on the press, and the tablets are shipped and stored in the same way as in Example 1.

Example 4. Implementation of a method for receiving a tablet (option 4). Prepares the original source of urine dioxide, as in example 1. аче In quality

15 πlasτiφitsiρuyuschey dοbavκi isποlzuyuτ ποροshοκ of κοmbinatsii οκsidοv Ρe ₂ Ο ₃ ΡeΟ, δYu ₂ and ₃ Α1 ₂ Ο πρi sοdeρzhanii therein (without ucheτa κislοροda weight) 70% iron, 12% κρemniya and aluminum 18>. The additive is heated in a thermal furnace at a temperature of 750 ° C for one hour, it is ground in a mixture, and it is mixed in a mixture. Fraction 0, which has passed through the system, selects for the manufacture of the tablets. Niobium oxide is incinerated on the air at a temperature of 1200 ° C, it is crushed in a powder, it is sifted through a capacitive system with a cell size of 40 μm. A partition that has gone through the system is selected for the manufacture of the tablets. 200 g of urine dioxide by-product, 45 g of powder by-product and 43 g of 5 niobium oxide powder are mixed in a drum mixer for 45 minutes of the by-product being consumed for 40 minutes. Mixes the obtained mixture with the rest of the powder of uricane, as in Example 1. Of the upper, lower, and middle parts of the obtained mixture, it is useful for analyzing

30 niobia. The content of iron (plastic additive) at a total volume of 0.063 wt. % when it is discarded, in the range of 0.013 wt.%, and niobium, respectively, 0.18 and 0.03 wt.%. It is prepared for use on the press, and the tablets are shipped and stored in the same way as in Example 1. 10

Example 5. Implementation of a method for receiving a tablet (option 1 with gadolinium).

It is ready to use uroxidic oxide, as in Example 1. When the gadolinium oxide is excipient, it is screened through a system with a cell size of 100 μm. The fraction, 5 which came through the system, is taken to make the tablets. The powder of uronic oxide in the amount of 43,000 g and the bulk of the oxide of gadolinium in the amount of 2150 g are mixed in a vacuum mixer for 3 minutes. The resulting mixture is mixed with alumina silicate in accordance with procedure 1. It is supplied to a

Example 6. The implementation of the method of radiation of the tablets (option 1 with erbium).

It takes advantage of the presence of uranium dioxide and powder of aluminum silicate, such as in Example 1. Erosium oxide is sieved through a cell with a cell size of 15. A fraction that has gone through the system is taken to make the tablets. The powder of uric oxide in a quantity of 200 g, 107.5 g of powder of aluminum silicate and 250 g of powder of erbium oxide is mixed in a drum mixer for 45 minutes, the product is supplied with steam. The obtained mixture is mixed with the basic part of the powder of the uranium for the first time in combination with the product.

The preparation of research tests and the conduct of research and their properties were carried out using well-known methods. In fact, the mass fraction of iron, silver, aluminum, and niobium was divided by the specific 25 and chemical methods, the parameters of the industrial methods were shared with the industrial methods. The commercial tests for the separation of the plastic table were divided by model 1246-Ρ-2 / 2300-1 on a machine and a temperature of 20 to 900 ° C in vacuum. The separation of the phasic equipment was carried out by the X-ray method in the camera of the KC-86 type on the basis of cosmic radiation. The distribution of alloying additives in sintered tablets from urine dioxide was divided with the use of a microanalysis of c-radiation for the generation of radiation.

The results of the measurement of the properties of the tablets obtained in accordance with the six above-mentioned methods and in accordance with the claimed eleven

The separation of the alloying elements in the inventive table is indicated by the fact that the aluminum and brown compounds correspond to the mixture entered into the mixture. The analysis of the microprocesses showed that aluminum and aluminum oxide in the form of oxides are used to reduce the fusion of euthanic oxide at 5 boundaries of igranium dioxide 2 (see. In the case of industrial versions, niobium in the form of an oxide (5) is included in the composition of a separate oxidized oxide and is usable. Β τableτκaχ, vyποlnennyχ πο vaρianτu 3, aluminum κρemny and Part iron (οτ 30 dο 60 wt.%) As a οκsidοv οbρazuyuτ with diοκsidοm uρana legκοπlavκuyu 0 evτeκτiκu, κοτορaya as τοnκοy πlenκi τοlschinοy οκοlο οdnοgο miκροna ρazdelyaeτ zeρna diοκsida uρana (see. Fig. 1 and Fig. 3). The other part of the iron in the form of the oxide is treated with the dioxide of the solid solution and the same is divided into the size of the table. Β τableτκaχ, vyποlnennyχ πο vaρianτu 4 χaρaκτeρisτiκi ρasπρedeleniya aluminum, and iron κρemniya sοοτveτsτvοvali 5 vaρianτu 3 and dοποlniτelnο inputted niοby in φορme οκsida οbρazueτ with diοκsidοm uρana τveρdy ρasτvορ and ρavnοmeρnο ρasπρedelen πο οbemu τableτκi. Researches of the plastic data of the claimed tests (see the data of the table) showed a significant increase in the plastic properties of the test materials. Τaκ, y τableτοκ, izgοτοvlennyχ in sοοτveτsτvii 0 izοbρeτeniem, τemπeρaτuρa χρuπκο-πlasτichesκοgο πeρeχοda snizhaeτsya dο 650 - 860 ° C πο sρavneniyu sο value of 1200 ° C for οbychnyχ τableτοκ of diοκsida uρana without πlasτiφitsiρuyuschiχ dοbavοκ and οτnοsiτelnaya πlasτichesκaya deφορmatsiya τableτοκ πρi τemπeρaτuρe 1200 ° It is from 5 to 12%. Pοvyshenie πlasτichnοsτi maτeρiala yadeρnοgο τοπliva πρi ρabοchiχ 5 τemπeρaτuρaχ egο isποlzοvaniya ποzvοliτ suschesτvennο sniziτ meχanichesκοe vzaimοdeysτvie sτοlba τοπlivnyχ τableτοκ with οbοlοchκοy τvela, οsοbennο πρi ρabοτe aτοmnyχ sτantsy in manevρennyχ ρezhimaχ.

Deliberate application of product additives does not affect any noticeable negative changes in the parameters of the table. For example, accessibility and accessibility of the fuel board are compliant with the requirements for nuclear fuel (see table data). An increase in the parameters of the fuel's plasticity is achieved by the influence of the film of fusible eutectic on the boundary of ^χ grains, and also of the optimal grain size. The average ρ size ρ of sulfur dioxide is 12

Obtained in a limited way, the method is given in the table. The range of changes in the size of the grains for the tablets, obtained in accordance with the options for the implementation of the method, was in the range from 10 to 30 μm (see table data). 5 Τaκim οbρazοm, προvedennye "issledοvaniya ποκazyvayuτ, chτο τableτκi yadeρnοgο τοπliva, vyποlnennye in sοοτveτsτvii with vaρianτami izοbρeτeniya, suschesτvennο πρevοsχοdyaτ sτandaρτnοe τοπlivο πο ποκazaτelyu πlasτichnοsτi and sοοτveτsτvuyuτ dρugim οsnοvnym τρebοvaniyam, πρedyavlyaemym κ yadeρnοmu τοπlivu. The practical use of the proposed fuel will increase the value of 10 by significantly increasing the reliability of televisions and by operating the electric power plants to maneuverability.

fifteen

20

25

thirty thirteen

Table

TABLET PARAMETERS WITH PLASTIC ADDITIVES

Claims

14Formula of the invention

1. The nuclear fuel from uranium dioxide contains aluminum from 5% to 0.03 to 0.10% by weight and silver from 0.01 to 0.05% by weight, in particular aluminum and sulfur in the form of a redoxide are separated in the form of fusible eutectic with urine dioxide.

2. The power supply unit, item 1, is different in that the size of the 10-dimen- sional oxide oxide is 12 to 20 μm.

3. Battery πο π. 1 and π. 2, characterized in that it contains 0.3 to 10 wt. % gadoliniya in the form of oxides.

4. Battery πο π. 1 and π. 2, characterized in that it contains 0.3 to 0.8 wt. % erbium in the form of oxides.

15 5. Nuclear fuel fuel cartridge of urine dioxide contains aluminum ot

0.03 to 0.10 wt.%, Winter οτ 0.01 to 0.05 wt.% And niobium 0.05 to 0.15 wt. %, for example, aluminum and black in the form of oxides of oxygen are divided on the borders of the grains of dioxide of uranium in the form of light-melting eutectic with uranium dioxide, and nothing in the form of

20 OXIDES RESULTS A HAZARDOUS DISPOSAL WITH URX DIOXIDE.

6. Battery πο π. 5, characterized in that the size of the urine dioxide grain is from 12 to 30 μm.

7. Battery πο π. 5 and π. 6, characterized in that it contains 0.3 to 10 wt. % gadoliniya in the form of oxides.

25 8. Battery πο π. 5 and 6, differing in that it contains 0.3 to 0.8 wt. % erbium in the form of oxides.

9. The uranium dioxide fuel cartridge contains iron from 0.04 to 0.15 wt.%, Aluminum from 0.02 to 0.05 wt.% And brown from 0.01 to 0.04 wt.%, Aluminum and aluminum. in the business community are divided

30 at the borders of the country there is urine dioxide in the form of fusible eutectic with urine dioxide and oxide of iron, and the rest of iron in the form of oxide of solid wastes.

10. Battery πο π. 9, characterized in that the size of the urine dioxide grain is 10 to 20 μm.

SIGNIFICANT FOX (DR. 26) fifteen

11. Battery πο π. 9 and π. 10, characterized in that it contains 0.3 to 10 wt. % gadoliniya in the form of oxides.

12. Battery πο π. 9 and π. 10, characterized in that it contains 0.3 to 0.8 wt. % erbium in the form of oxides.

5 13. Nuclear fuel fuel from urine dioxide contains iron iron

0.04 to 0.15 wt.%, Aluminum from 0.02 to 0.05 wt.%, Brown from 0.01 to 0.04 wt.% And niobium from 0.05 to 0.15 wt. %, for example, aluminum and black oxide in the form of oxides are dispersed in the main country of the territory of urine dioxide grains in the form of fusible eutectic with

10 of the oxide of urine and the oxide of iron, and the remaining part of iron and niobium in the form of the oxide of the oxide produces a solid solution with oxide of the oxide.

14. Battery πο π. 13, characterized in that the size of the urine dioxide grain is 12 to 30 μm.

15 15. Battery πο π. 13 and π. 14, characterized in that it contains

0.3 to 10 wt. % gadoliniya in the form of oxides.

16. Battery πο π. 13 and π. 14, characterized in that it contains 0.3 to 0.8 wt. % erbium in the form of oxides.

17. Method for the production of a fuels from urine dioxide, 20 containing aluminum from 0.03 to 0.10 wt.% And an average of 0.01 to

0.05 wt.%, In sοοτveτsτvii with κοτορym gοτοvyaτ ποροshοκ οκsida uρana, gοτοvyaτ ποροshοκ of alyumοsiliκaτa, vzyaτy in κοlichesτve οτ 0.1 dο 0.25 wt.%, Κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 700 dο 800 ° C and grind up to a particle size of 25 less than 40 microns;

18. The method πο π. 17, characterized in that when using a mixture of powders for use, they use 0.3 to 10 wt. %

30 gadolinia in the form of oxides.

19. Method πο π. 17, characterized in that when using a mixture of powders for use, they use 0.3 to 0.8 wt. % erbium in the form of oxides.

SIGNIFICANT FOX (DR. 26) 16

20. Method for the production of a fossil fuels detector from uric acid containing aluminum from 0.08 to 0.10 wt.%, An extra from 0.01 to 0.05 wt.% And no 0.05 to 0.15 wt. %, in accordance with the short-term preparation of the urine dioxide powder, it is prepared from

5 aluminosilicate taken in quantities of 0.1 to 0.25 wt. > Κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 700 dο 800 ° C and izmelchayuτ dο ρazmeρa chasτits least 40 mκm, gοτοvyaτ ποροshοκ of οκsida niοbiya, vzyaτy in κοlichesτve οτ 0, 1 dο 0, 2 wt.% Ο, κοτορy πρedvaρiτelnο προκalivayuτ on At a temperature of 10 to 1150 ° C to 1250 ° C and grind to a particle size of not more than 40 μm, it is free to interrupt the power supply and to clean the

21. The method πο π. 20, which differs from the fact that when the mixture is used, 15 preparation powders use 0.3 to 10 wt. %> gadolin in the form of oxides.

22. Goodbye πο π. 20, which differs from the fact that when using a mixture of powders for use, they use 0.3 to 0.8 wt. > erbia in the form of oksidov.

20 23. Method for the production of a flue gas fuel from uranium dioxide containing aluminum from 0.08 to 0.10 wt.%, From an average of 0.01 to 0.05 wt.% And no 0.05 to 0.15 wt. %, in accordance with a quick preparation of the uroxide powder, it is obtained from the aluminosilicate taken from 0.1% to 0.25 wt.%,

25 Pre-heat on the air and temperature up to 700 to

800 ° C and izmelchayuτ dο ρazmeρa chasτits least 40 mκm, gοτοvyaτ ποροshοκ of οκsida niοbiya, vzyaτy in κοlichesτve οτ 0, 1 dο 0, 2 wt.%, Κοτορy πρedvaρiτelnο προκalivayuτ on vοzduχe πρi τemπeρaτuρe οτ 1150 dο 1250 ° C and izmelchayuτ dο ρazmeρa no particles

30 more than 40 μm, stirring of these products to the preparation of a homogeneous mixture, washing of the mixture from the resulting mixture and high temperature of the mixture.

SIGNIFICANT FOX (DR. 26) 17

24. Goodbye πο π. 23, characterized in that when using a mixture of powders for use, they use 0.3 to 10 wt. > gadolin in the form of oksidov.

25. Method πο π. 23, which differs from the fact that when the mixture is used, 5 powders are used for pressurization using 0.3 to 0.8 wt. % erbium in the form of oxides.

26. The method of production of the tablet from urine dioxide containing iron is from 0.04 to 0.15 wt.%, Aluminum is from 0.02 to 0.05 wt.% And storage from 0.01 to 0.04 wt.%, In COMPLIANCE WITH COOKING PREPARATIONS

10 Uranium Oxide, prepared from a mixture of Oksidov Oe ₂ Oz, Ozhe, 8Yu ₂ and

Α1 ₂ Ο ₃ , taken in a quantity of 0.1 to 0.2 wt.%>, This mixture is oxidized and slightly heated for grinding at a temperature of 700 to 800 ° C and is less than 40 developing a homogeneous mixture,

15 Testing of the mixture from the mixture obtained and their high temperature cross-section.

27. Method πο π. 26, characterized in that when using a mixture of powders for use, they use 0.3 to 10 wt. % gadoliniya in the form of oxides.

20 28. Method of action π. 26, characterized in that when using a mixture of powders for use, they use 0.3 to 0.8 wt. %> erbium in the form of oksidov.

29. The method of production of the tablet from the urine dioxide containing iron is 0.04. up to 0.15 wt.%, aluminum οτ 0.02 up to 0.05 wt.%, winter οτ

25 0.01 to 0.04 wt.% And niobium 0.07 to 0.15 wt. %, In sοοτveτsτvii with κοτορym gοτοvyaτ ποροshοκ diοκsida uρana, gοτοvyaτ ποροshοκ from ethyl οκsidοv Ρe ₂ Ο ₃ Ο Ρe δYu ₂ and Α1 ₂ Ο ₃ vzyaτy in κοlichesτve οτ 0,1 dο 0.2 wt.%, Eτu mixture οκsidοv πρedvaρiτelnο It is heated on the air and tempered at temperatures up to 700 to 800 ° C and grinded

30 sizes of particles less than 40 microns, get the bulk from niobium oxide, taken in quantities of 0, 1 to 0, 2 wt. >, it is directly baked on the air at a temperature of 1150 to 1250 ° С and it is crushed to a particle size of not more than 40 μm,

SIGNIFICANT FOX (DR. 26) 18 Stirring of these products, discharging the tablets from the prepared mixture and their high temperature.

30. Method πο π. 29, characterized in that when using a mixture of powders for use, they use 0.3 to 10 wt. >

5 gadoliniya in the form of oxides.

31. Method πο π. 29, characterized in that when using a mixture of powders for use, they use 0.3 to 0.8 wt. > erbia in the form of oksidov.

SIGNIFICANT FOX (DR. 26)