Two Indicted for Alleged Efforts to Supply Iran with U.S

WASHINGTON - A federal grand jury in the District of Columbia has returned a superseding indictment charging Parviz Khaki, a citizen of Iran, and Zongcheng Yi, a resident of China, for their alleged efforts to obtain and illegally export to Iran U.S.-origin materials that can be used to construct, operate and maintain gas centrifuges to enrich uranium, including maraging steel, aluminum alloys, mass spectrometers, vacuum pumps and other items.Get price

A Witches’ Brew? Evaluating Iran’s Uranium-Enrichment

Iran’s production of uranium hexafluoride at Isfahan has grown from 55 metric tons, reported by the IAEA in its November 2006 report, to more than 330 tons as of August 14, 2007. Although the quality of Iran’s uranium hexafluoride has been doubted, and centrifuge operation will improve with higher-quality feedstock, most of it is sufficient for centrifuges.[ 7 ]Get price


in the vacuum ultraviolet region (provided trace contaminants are removed) to be utilized as a transparent purge gas in future fissioning gaseous uranium plasma reactor experiments. Absorption cross sections for uranium hexafluoride were calculated from the data between 80 and 120 nm and were ofGet price

Handling and Use of Sulfur Hexafluoride Gas

Handling and Use of Sulfur Hexafluoride Gas Page 7 of 8 9. Clean interior of equipment in accordance with section E prior to working on any internal parts. 10. When equipment is to be returned to service, seal all portholes and fittings. 11. Evacuate equipment using processing cart vacuum pump. 12. Break vacuum using SF 6 gas. 13.Get price

First Iranian-made cryogenics pump to be installed in South

Jan 21, 2015 · The first Iranian-made cryogenics pump will be installed in phase 17 and 18 of the South Pars gas field, said the managing director of Iran Industrial Pumps Group, Mehdi Farajpourvand.Get price

High-Voltage Lifetime Function of the PZT Ceramic/Gas

A diagram of the gas system is shown in Fig. 4. The vacuum pump evacuated the test cell and interconnecting tubing. Insu-lator gas was introduced from the gas bottle via the pressure regulator. Gas pressure in the test cell was monitored by a calibrated Wallace and Tiernan model FA160410 precision gauge.Get price

US8828350B2 - Gas recovery of sulphur hexafluoride - Google

A system and method are provided for recovering a re-usable grade of sulphur hexafluoride (SF 6 ) from a potentially contaminated gas source. The system includes extraction vessels connected to the potentially contaminated gas source.Get price

Regulation for Reducing Sulfur Hexafluoride Emissions from

Sulfur hexafluoride (SF 6) is a potent greenhouse gas 23,900 times the global warming potential of carbon dioxide (CO 2) One pound of SF 6 emitted is equivalent to 11 tonnes of CO 2 80% of California’s SF 6 emissions come from gas insulated electrical switchgearGet price


* Sulfur Hexafluoride can affect you when breathed in. * Sulfur Hexafluoride can irritate the skin causing a rash or burning feeling on contact. Direct skin contact can cause frostbite. * Sulfur Hexafluoride may cause severe eye burns leading to permanent damage. * Breathing Sulfur Hexafluoride can irritate the nose and throat.Get price


The vacuum pump discharges to atmosphere and is not connected to the compressor. The pump is oil lubricated and it is a frequently used component because step one of most operations begins with evacuating the hose. The insulating gas gas vaporization system is another important component. It is used during refilling operations.Get price

Catalog of Guidelines and Standards for the Handling and

Acidity of Sulfur Hexafluoride 1995 9 Cryoquip, Inc. SF 6 Reclamation: Where Are We? 2000 9 Cryoquip, Inc. SF 6 Recycling Technology 1997 9 Danish Technological Institute Pederson, P.H. Substitutes for Potent Greenhouse Gases (HFCs, PFCs, and SF 6) – Status Report 1997 9 Electrical World New Laser Camera Detects SF 6 Gas Leaks, ElectricalGet price

A History of IranNuclear Program | Iran Watch

Early Nuclear EffortsSeeking Nuclear FuelWeaponization?Safeguards ViolationsUnder the Shah, Iran launched a series of ambitious nuclear projects that relied on assistance from the United States and Europe. According to Akbar Etemad, the President of the Atomic Energy Organization of Iran (AEOI), from 1974 through 1978, Iran was already carrying out nuclear research and education at the University of Tehran when the NPT entered into force on March 5, 1970.The work centered on a five megawatt research reactor supplied by the United States, which began operation in 1967. By the mid-1970s, according to Etemad, Iran had launched an extensive nuclear energy program. In 1974, the Shah set the goal of producing roughly 23,000 megawatts of electrical power from a series of nuclear power stations within twenty years. A host of contracts between Iran and nuclear suppliers in Europe and the United States followed: Iran struck a deal with Kraftwerk Union (KWU, a Siemens subsidiary) of then-West Germany to build two 1,200 megawatt reactors at Bushehr and negotiated with...Get price

Uranium hexafluoride - Wikipedia

Chemical properties. It has been shown that uranium hexafluoride is an oxidant and a Lewis acid that is able to bind to fluoride; for instance, the reaction of copper(II) fluoride with uranium hexafluoride in acetonitrile is reported to form copper(II) heptafluorouranate(VI), Cu(UF 7) 2.Get price

Japanese Vacuum Pump at Yongbyon - Arms Control Wonk

Jun 13, 2008 · Apparently, the IAEA found the pump at Yongbyon, leading to police raids on two companies in Japan, according to the Daily Yomiuri, Kyodo News and the Daily Mainichi. The Daily Yomiuri has the most detailed coverage: The company that exported the pumps, Nakano Corp., has been shipping vacuum pumps to Taiwan universities and labs for about 20 years.Get price

Sulfur Hexafluoride as a Mine Ventilation Research Tool

fur hexafluoride (Sulfr hexafluoride) tracer gas in ven- tilat ion measurement work for several years. gaz sf6 is colorless, odorless, chemically and thermally stable, and can easily be dispensed in air (1).3 In testing by the Bureau, sf6 gas was contained in metal, high-pressure bottles that hold approximately 42.5 L (1-1/2 ft3) of gas.Get price

Uranium hexafluoride: A manual of good handling practices

when the pump is restarted. 7.2 Cold Trap Operation To avoid the possibility of blowing oil out of the vacuum pump, the operating procedure for starting a cold trap unit is to close all the valves, start the vacuum pump, then slowly open the valves in the sequence of 6, 5, 4, 3, and 2. After opening valve 2, the vacuum gage on theGet price

Uranium hexafluoride: A manual of good handling practices

temperature, however, some small amount of UF6 does remain in the gas phase. Therefore, it is also necessary to provide a chemical trap to collect the remaining UF6 by absorption. A vacuum pump removes the non-condensable purge gases. Figure 30 is the phase diagram of UF6 for the temperature range of -40*F to +60*F.Get price

An Improved Sulphur Hexafluoride Gas Handling System for a

An Improved Sulphur Hexafluoride Gas Handling System for a Potential Drop Partical AcceleratorGet price

Vacuum Pumps Market 2021 - brochure

Jun 07, 2016 · I n d u s t r y B r i e f 12 Vacuum Pump Market Set to Grow at CAGR 10% in Middle East Africa Rising government spending in semiconductor sector coupled with growing adoption of vacuum technology in the process industries to drive the demand for vacuum pumps globally through 2021 According to recently released TechSci Research reportGet price

Development of solid materials for UF6 sampling: FY16 Annual

Oct 31, 2016 · The handheld system utilizes an active vacuum system, rather than a passive vacuum system in the facility setup, to drive the uranium hexafluoride onto the adsorbing media. The handheld unit will be battery operated more » for fully autonomous operation and will include onboard pressure sensing and flushing capability.Get price

Centrifuges and Nuclear Weapon Proliferation – Federation Of

Ancillary and test equipment is also important, including vibrational test systems, machine tools, multi-plane balancing instruments, mass spectrometers, vacuum pumps, and certain chemicals. Like diffusion plants, centrifuges use a gaseous form of uranium, uranium hexafluoride or UF 6 .Get price

Progress report on the HI-13 tandem accelerator - ScienceDirect

Feb 15, 1986 · 5. Vacuum system and sf6 gas gas handling system 5.1. Vacuum system The main accelerator vacuum system is composed of two 10", 2000 1/s oil diffusion pumps located at both ends of the tank. Inside the terminal a titanium sublimation pump and two getter ion pumps ensure good vacuum when the gas stripper is used.Get price

Vacuum Pumps Market - MEA Industry Analysis 2015 - 2025: Oil

Jul 28, 2015 · This report aims to provide comprehensive strategic analysis of the MEA vacuum pumps market along with the market size and growth forecast for the period from 2015 to 2025.Get price

Mohsen Khodaee - Project Engineer - TAPCO | LinkedIn

About More than 5 years academic and industrial experience in turbomachinery field including centrifugal blowers, centrifugal, screw and reciprocating compressor, pump packages and refrigeration packages for oil and gas, cement, steel and iron industries.Get price

Mojtaba Ghasemi - Engineering Lead - ParsVacuum | LinkedIn

Iran is one of 18 observing countries of technical comittee "ISO/TC 112 vacuum technology" , its scope is standardization of vacuum technology both in the field of apparatus (essential characteristics, dimensions and materials), and in the field of definitions and methods of measurement.Get price

VAC Centrifugal Pump - A new generation of dirty water vacuum

A new generation of dirty water vacuum pumps, based on the principle of the liquid ring system. This compact pump combines all performances of diaphragm, piston and centrifugal pumps and will pump continuously, by means of the specially developed rotor, on liquids, air or gasses in any mixture.Get price

Difficult to process? Vacuum it! (Journal Article) | OSTI.GOV

Sep 01, 1997 · The paper discusses process improvements, attaining liquid distribution, medium-vacuum processing, falling-film evaporators, wiped-film evaporators, short-path evaporators, evaporation and crystallization, filtration, drying, refrigeration, freeze drying, degassing, semiconductor processing, pumps and their selection, and leak testing.Get price

Federation of American Scientists :: Centrifuges and Nuclear

Ancillary and test equipment is also important, including vibrational test systems, machine tools, multi-plane balancing instruments, mass spectrometers, vacuum pumps, and certain chemicals. Like diffusion plants, centrifuges use a gaseous form of uranium, uranium hexafluoride or UF 6 .Get price

Vacuum Pumps - Market Study by Global Industry Analysts, Inc.

Vacuum Pumps Market Study by Global Industry Analysts, Inc. StrategyR is a trade mark of Global Industry Analysts, Inc. USA A trade mark of Global Industry Analysts, Inc.Get price