Expert: Sanctions Relief Likely in Jan.

Expert: Sanctions Relief Likely in Jan.Expert: Sanctions Relief Likely in Jan.

A nuclear exert believes oil and banking sanctions against Iran might be lifted by mid-January based on the pace at which technicians are removing and mothballing nuclear equipment at the country's uranium-enrichment facilities.

Iran removed 4,530 centrifuges during the 28 days ending Nov. 15, a rate of 162 machines per day, according to an International Atomic Energy Agency report issued late Wednesday.

Based on current work rates, Iran may be able to fulfill its part of the nuclear deal agreed with world powers by Jan. 12.

"By the time you have this down to a routine, it's not much more difficult than changing a set of tires," Robert Kelley, a nuclear engineer and former IAEA director who has supervised centrifuge disassembly projects, was quoted by Bloomberg as saying. "There's no reason the Iranians cannot continue at the same pace."

The July 14 deal agreed with world powers requires Iran to reduce the number of its installed centrifuges—the fast-spinning machines that enrich uranium—to 5,060 from about 19,000. Once IAEA monitors have verified that Iran has met its commitments, oil and banking sanctions will be lifted.

Nuclear monitors have been present during every stage of the removal process, according to two senior diplomats familiar with the IAEA's role in Iran.

The agency is recording the serial number of every machine that is being removed to ensure nothing goes missing, they said, asking not to be identified in exchange for discussing details of the work.

Before sanctions are removed, Iran also has to eliminate about 8,000 kilograms of enriched uranium, either by exporting it to another country or diluting it with inert material. The core of a heavy-water reactor in Arak also has to be disabled.