The invention relates to a method and to an arrangement for producing spherical fuel cores and/or breeder material cores by dripping a pouring solution containing uranyl nitrate and a solution containing at least one auxiliary agent into an ammoniacal precipitation bath in order to form microspheres, aging and washing the microspheres produced in such a way in an ammonia solution, drying, and thermally treating said microspheres. In order to take into consideration the special characteristics of uranium chemistry for cores and to provide a continuous production method along with a constantly high core quality in the method, it is proposed that the microspheres from the precipitation bath be separated through a first separator and fed to the ammoniacal aging water for aging, that the contact duration of the microspheres with the liquid of the precipitation bath before being introduced into the aging water be set equally or substantially equally, that the microspheres be transferred from the aging water to a multi-stage cascade scrubber using a transfer device, wherein the microspheres are washed in the multi-stage cascade scrubber so as to be free or substantially free from ammonium nitrate and at least one auxiliary agent contained in the microspheres, and that after the microspheres are dried, the microspheres are calcinated while distributed in a monolayer during a thermal treatment.
The invention relates to a method for the production of spherical combustible or fertile material particles from an oxide of the group of the heavy metals uranium, thorium, plutonium, or mixtures thereof. For this purpose, the process steps of producing a base solution of the nitrates of the heavy metal(s), adding at least one first reagent in order to adjust the viscosity of the solution, dropping the solution to form microspheres, at least superficially solidifying the microspheres in an atmosphere containing ammonia, collecting the microspheres in a solution containing ammonia, and subsequent washing, drying and thermal treatment are carried out, wherein urea and/or ammonium carbonate and/or ammonium hydrogen carbonate and/or ammonium cyanate and/or biuret are added to the base solution before adding the first reagent, and the solution thus prepared is heated to a temperature T at 80° ≤ T ឬ Ts where Ts = boiling temperature of the solution, and is maintained at said temperature over a time period t where 2 h ≤ t ≤ 8 h.
B01J 2/06 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Chemical catalysts as machine parts, in particular catalysts
for degradation of hydrogen; machines, pumps (machines),
fittings for steam boilers, filtration machines, cleaning
machines, separators (machines), water separators,
separators (machines) and heat exchangers as machine parts
of power station systems (machines). Scientific, electric, electronic, photographic, film,
optical, weighing, measuring, signaling, checking,
life-saving and teaching apparatus, devices and instruments,
data processing systems, data processing equipment, computer
software, programs for data processing (previously mentioned
goods included in this class; calculating machines, data
processing equipment and computers, in particular for
recording and processing of process data; data processing
programs, in particular interactive, multi-media learning
programs and programs for the disposal and dismantling of
nuclear facilities; measuring systems for use in the nuclear
field, in particular for decision measurements in nuclear
facilities; software for the operation and management of
nuclear facilities; measuring and monitoring equipment for
measuring and recording the contamination state of
facilities, buildings and open spaces, in particular of
nuclear facilities and components thereof; measuring
equipment for determining characteristic key factors such as
burn up or residual activity of spent fuel elements or
wastes; measuring devices in particular for quantitative and
qualitative determination of elements by means of laser
technology. Building of waste treatment facilities and centers;
performance of maintenance work on nuclear facilities;
building and commissioning of facilities for enrichment and
manufacture of nuclear fuels, fuel elements, shielding
materials and neutron absorbers, for processing and
treatment of nuclear fuels and fuel elements and for
storage/reprocessing, treatment, recycling, solidification
and disposal of nuclear wastes, for tritium and UF6
technology, for flue gas cleaning and for environmental
technology; build-back of nuclear facilities; dismantling
and replacement of infrastructural amenities in nuclear
facilities, in particular electrical, ventilation and waste
water amenities; stripping of components of nuclear
facilities; dismantling work. Storage of radioactive waste; transport and disposal of
radioactive waste, to wit by removal and storage. Waste processing and treatment and conditioning of
radioactive wastes into a state suitable for interim and
final storage, disposal of radioactive wastes by
decontamination and decontrol measurement; decontamination
work; treatment of spent fuel elements and of unspent
processing wastes containing enriched uranium limited to the
field of high temperature reactor fuel technology. Education and providing of training. Technical development, consultancy and planning of waste
treatment concepts including development and planning of
waste treatment facilities and centers; writing of technical
expertises, reports, studies, analyses, and of engineering
concepts and preliminary studies, in particular in the
fields of nuclear, energy, environmental and safety
technology; quality checking and monitoring in the nuclear
technology field; engineering services in the form of
technical planning, installation and commissioning of
hardware and software controlled systems in respect of
access control and archiving; technical project planning,
design planning, civil engineering planning; technical
planning and development of enrichment services in the field
of radioactive substances and materials, in particular
physical and chemical methods for increasing the proportion
of a certain isotope in an isotope mixture; performance of
radiation protection measurements; providing of technical
documentations relating to nuclear facilities; inspection of
technical documentations relating to fuel elements,
transport and storage containers, nuclear facilities and
components thereof; calculation of fuel inputs; monitoring
of process sequences in nuclear facilities; performance of
safety studies in nuclear facilities; scientific safety
studies, technical planning and development of environmental
and waste management concepts for nuclear facilities, in
particular in the field of planning and implementation of
environmental and waste concepts taking into account legal
and technical requirements; technical planning and
consultancy in the field of radiation protection and
performance of measurements and chemical analyses;
consultancy in the field of radiation protection
legislation; measuring and evaluating the contamination
state of facilities, buildings and open spaces; technical
consultancy when concluding business for transfer of
ownership or possession of radioactive substances and
materials; technical consultancy, in particular
physical/technical consultancy and technical planning and
performance during the building and monitoring of nuclear
facilities and equipment, in particular of nuclear reactors;
technical consultancy and planning in the field of nuclear
technology, in particular for questions of internal and
external fuel cycles and for storage and transport of
radioactive materials; writing of technical reports and
expertises in the field of nuclear technology and in related
fields; rental of data processing devices; writing of
programs for data processing; rental of computer software;
updating of computer software, design of computer software;
quality monitoring by technical planning of safety concepts
and software and performance of checks on safety concepts
and checks during the production and assembly of fuel
elements, transport and storage containers and nuclear
facilities and their components. Consultancy in the field of safety of nuclear facilities
included in this class.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
36 - Financial, insurance and real estate services
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Catalysts being parts of machines, in particular catalysts for the decomposition of hydrogen; machines, pumps, fittings for engine boilers, filter machines, cleaning machines, separators, water separators, precipitators and heat exchangers, in particular of power station systems. Scientific, electric, electronic, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus, equipment and instruments, data processing installations, data processing equipment, computer software, programs for data processing (all the aforesaid goods included in class 9); calculating machines, data processing equipment and computers, in particular for collecting and processing process data; data processing programs, in particular interactive, multimedia educational programs and programs for disposing of and dismantling nuclear technology installations; measuring installations for use in the nuclear field, in particular for decision measurements in nuclear installations; software for operating and managing nuclear installations; measuring and monitoring equipment for measuring and detecting the contamination condition of installations, buildings and open spaces, in particular of nuclear installations and components thereof; measuring equipment for determining characteristic variables such as the consumption or residual activity of spent fuel elements or waste; measuring equipment, in particular for the quantitative and qualitative detection of elements using laser technology. Operational support in the nuclear field, namely process optimisation regarding economic consultancy; installation support, namely by means of organisational consultancy in the nuclear field; conducting, support, professional business consultancy and assistance, namely in the form of cost assessment and cost planning of approval procedures relating to nuclear installations. Brokerage of financial transactions, and consultancy with regard to financing, restricted to the fields of nuclear waste treatment, the remediation of nuclear installations and high-temperature reactor technology. Development and planning of waste treatment installations and centres; maintenance of nuclear installations; construction and commissioning of installations for enriching and manufacturing nuclear fuels, fuel elements, shielding materials and neutron absorbers, for the processing of nuclear fuels and fuel elements, for the storage/reprocessing, treatment, exploitation, compacting and disposal of nuclear waste, for tritium and UF6 technology, for exhaust gas purification and for environmental technology; rebuilding of nuclear installations; disassembly and renewal of infrastructural systems of nuclear installations, in particular electric, ventilation and waste water systems; dismantling of components of nuclear installations; disassembly. Storage of radioactive waste; transport and disposal of radioactive waste; technical consultancy and planning in the nuclear sector, namely in the storage and transport of radioactive materials. Conditioning of radioactive waste by processing, in particular in the form of compressing, cementing, bituminising, incineration and decommissioning of nuclear installatons by dismantling or confining installations or installation parts; conditioning of radioactive waste by means of decontamination; removal or reduction of radioactive contamination; decontamination; reprocessing of spent fuel elements and reprocessing of unspent processing waste containing enriched uranium, restricted to the field of high-temperature reactor technology; treatment of radioactive waste; waste management in the field of nuclear installations, namely waste processing. Training and instruction. Development, consultancy and planning of waste treatment concepts; providing of expertise, compiling reports, studies, analyses, engineering plans and preliminary studies, in particular in the fields of nuclear, energy, environmental and safety technology; quality control and monitoring in the nuclear field; planning and installaton of access control and archiving systems; technical project planning, construction drafting, structural and civil engineering planning; conducting radiation protection measurements; compiling of technical documentation, namely technical reports and calculations relating to nuclear installations; examination of technical documentation relating to fuel elements, transport and storage containers, nuclear installations and components thereof; calculation of fuel use; process monitoring in nuclear installations; conducting safety studies in nuclear installations; technical project planning, safety studies, environmental and waste management in the field of nucelar installations, namely targeted planning and implementation of environmental and waste treatment concepts taking account of legal and technical requirements, included in class 42; waste management in the field of nuclear installations, namely technical development, consultancy and planning of waste treatment concepts, installations and centres, included in class 42; planning and consultancy in the field of radiation protection and performing measurements and chemical analyses; consultancy in the field of radiation protection law; measuring and assessing the contamination condition of installations, buildings and open spaces; technical consultancy with regard to the transfer of possession or ownership in the field of radioactive substances and materials, in relation to waste treatment installations or nuclear remediation projects, or the field of high-temperature reactor technology; technical consultancy, in particular physical-technical consultancy and planning, operational monitoring of nuclear installations and facilities, in particular of nuclear reactors; technical consultancy and planning in the field of nuclear technology, in particular on issues of the internal and external nuclear fuel cycle; preparation of technical reports and expertise in the field of nuclear technology and in related areas; Computer rental; computer programming; computer software rental; updating of computer software, computer software design; quality monitoring by means of planning safety concepts and software and testing safety concepts and controls in the manufacture and assembly of fuel elements, transport and storage containers and nuclear installations and components thereof. Consultancy in the field of the safety of nuclear installations.
