Thanks for helping me. But this solution looks rather like a hack.
Is there no easy way to translate the passphrase into a private key or is there a wallet where I can import that passphrase?
Yeah , there is one of the wallet at the playstore of Google paltfrom where many of my friends got thier bch coin successfully .
Go to play store and search for the coinomi and download that wallet , after download open app and click at the restore wallet and then put your phrase of blockchain .
After this there you will see the procedure to get your BcH coin , then by following that guide get your bcc coin ( usually you need to add bitcoincash in wallet of the menu of left three bar column and then put your password that you putted in stsrted and also click at the advance setting and write
M/44H/0H/0H and finally click ok and then you wioo successfully see your bch coin .