I had a dogecoin wallet on my iphone using doughwallet.
I saved the recovery phrase but I do not have anymore the iphone to restore it.
Is there a way to use the recovery phrase to restore the wallet on a PC?
Yeah, you can use this tool https://dcpos.github.io/bip39/ to generate your privkeys from your seed phrase. I'm unsure of the exact settings for doughwallet, you'll need to Google some.
Dough doesn't give you your private keys. That's the biggest reason I refuse to use it, actually.
You need to get your hands on an iOS device, use the passphrase, then send all your coins to a 'real' wallet. 😉