* Russia fears economic impact of Ukraine-EU deal
* Pact offers Ukraine tariff-free access to EU (Recasts with end of meeting, quotes)
By Robin Emmott and Alissa de Carbonnel
BRUSSELS/MOSCOW, July 11 (Reuters) - The European Union sought to reassure Russia on Friday that a free-trade pact with Ukraine was not aimed at hurting Moscow but rejected calls to postpone its implementation, offering more talks instead.
In a historic shift away from Russia, Ukraine, Georgia and Moldova last month signed political and free-trade agreements with the European Union that have been at the centre of months of conflict and hundreds of deaths.
Russia warned of "grave consequences" following the signing of the accords, which undermine Moscow's ability to create its own trade bloc with the former Soviet states, and has taken what Brussels says are retaliatory steps by blocking Moldovan wine and European meat exports.
In talks in Brussels aimed at defusing the tensions, Russian Economy Minister Alexei Ulyukayev said that Moscow would have to reevaluate its customs rules with Ukraine, meaning Kiev could lose preferential access to one of its biggest trade partners.
"I'm afraid that our colleagues do not fully understand the scale of the problem that we will be faced with," Ulyukayev was quoted as saying by Russian state news agency RIA, saying the agreement caused "risky areas" for Moscow.
He also said the agreement between Ukraine and the European Union, which falls short of full EU membership for Kiev but offers deep economic integration and tariff-free access to the EU's 500 million consumers, should be postponed.
EU trade chief Karel De Gucht tried to assuage Moscow and in a joint statement with Russia and Ukraine agreed there was an impact on Russian business, acknowledging the free-trade pact "could entail some potential economic risks".
De Gucht also said Russia would circulate a list of potential concerns by the end of next week and all three sides would meet again in September to discuss the issue further.
Moscow fears Ukraine may re-export EU products to Russia, avoiding duties that Russia imposes to protect its own output.
Ulyukayev said the EU-Ukraine deal risked "the possibility of displacement of Russian goods on the European market and Ukrainian goods from the Ukrainian market".
Ukraine's former pro-Moscow President Viktor Yanukovich turned his back on signing the EU agreement last November in favour of closer ties with Moscow, prompting months of street protests that eventually led to his fleeing the country.
Soon afterwards, Russia annexed Ukraine's Crimea region, drawing outrage and sanctions from the United States and EU, and pro-Russian separatists began an uprising in eastern Ukraine.
In the latest measures, Brussels will announce on Saturday the names of four Russians and seven pro-Russian Ukrainian separatists targeted with asset freezes and travel bans.
That will take the total number of people in Ukraine and Russia hit with EU sanctions to 72, the European Union said this week. (Additional reporting by Jan Strupczewski in Brussels; editing by Andrew Roche)
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