Iranian negotiators on Wednesday expressed support for a deal that - if accepted by their leaders - would delay Teheran's ability to make nuclear weapons by sending most of its existing enriched uranium to Russia for processing, diplomats said. International Atomic Energy Agency chief Mohamed ElBaradei said that representatives of Iran and its three interlocutors - the US, Russia and France - had accepted the draft for forwarding to their capitals. ElBaradei said he hoped for approval from all four countries by Friday. Ali Asghar Soltanieh, Iran's chief delegate, praised the draft, saying it was "on the right track," while emphasizing that senior Iranian officials in Teheran still had to sign off on it. "We have to thoroughly study this text and also (need) further elaboration in capitals," Soltanieh told reporters. The apparent breakthrough came on the third day of talks in Vienna which aimed to overcome differences over Iran's nuclear intentions. While the United States and other nations fear Iran may be interested in developing nuclear weapons, Teheran insists its activities are peaceful and meant only to generate energy for its growing population. ElBaradei said he had "circulated a draft agreement that in my judgment reflects a balanced approach to how to move forward." "Everybody who participated at the meeting was trying to look at the future not at the past, trying to heal the wounds," the IAEA chief added. "I very much hope that people see the big picture, see that this agreement could open the way for a complete normalization of relations between Iran and the international community." Neither Soltanieh nor Elbaradei gave details of what was in the package. But diplomats told The Associated Press that it was essentially the original proposal drawn up by the IAEA that would commit Teheran to shipping 75 percent of its enriched uranium stockpile to Russia for further enrichment. The official IRNA news agency in Iran quoted "informed sources in Vienna" as saying that Iran has not signed a deal. "Iran has not signed any deal about meeting the fuel needs of the Teheran reactor," IRNA quoted the unidentified informed sources as saying. It said reports that Iranian negotiators expressed support for a draft deal on sending uranium for processing are "aimed at imposing psychological pressure on Iran ... but Iran won't heed such pressure and will only decide on the basis of its national interests." Sending such a large amount of Iran's enriched uranium outside the country would temporarily get rid of most of the material it needs to make a bomb. After that material is turned into metal fuel rods, it would then be shipped back to Iran to power its small research reactor in Teheran, according to the draft. The diplomats spoke on condition of anonymity because the meeting was confidential. Soltanieh suggested that his country - which held at least one one-on-one meeting with the American delegation - had wrested concessions from Washington in exchange for any agreement. "One of the aspects in addition to the fuel is the control instrumentation and safety equipment of the reactor," the Iranian negotiator said. "We have been informed about the readiness of the United States in a technical project with the IAEA to cooperate in this respect." He gave no details, and it was unclear if the equipment he was describing fell under a UN embargo on shipping sensitive nuclear-related material to Iran, which is under Security Council sanctions for refusing to freeze enrichment. While essentially technical, a deal that foresees Iran exporting most of its enriched material would have significant ramifications. It would commit Iran to turn over more than 2,600 pounds (1,200 kilograms) of low-enriched uranium. That would significantly ease fears about Iran's nuclear program, since 2,205 pounds (1,000 kilograms) is the commonly accepted amount of low-enriched uranium needed to produce weapons-grade uranium. French Foreign Minister Bernard Kouchner appeared to outline the contours of the deal, insisting that his country would not compromise on demanding that Teheran ship out most of its enriched material. If Iran accepts the deal "it must be before the end of the year, there must be at least 1,200 kilograms - on that we won't back down," Kouchner told reporters in Paris. Based on the present Iranian stockpile, the US has estimated that Teheran could produce a nuclear weapon between 2010 and 2015, an assessment that broadly matches those from Israel and other nations.