Does a divorce issued by the husband in a state of extreme anger, and with the intention of threatening the wife to urge her to return, take effect, especially since the wife has declared that the divorce has occurred and that she is no longer his wife?

If you intended that the divorce would occur simply by the wife not coming within 48 hours, then the divorce has taken place. If this was the third divorce, then she is irrevocably separated from you, and she is not lawful for you until she marries another man. If it was the first or second divorce, you may take her back before her iddah (definition) (waiting period) expires. If her iddah has expired, then a new contract and dowry are required. However, if you intended that you would divorce her after the period elapsed, but you did not utter the divorce, then she is not divorced. This detail also applies to your statement: "You will be divorced if you speak about this matter." Some scholars are of the view that suspending divorce with the intention of threat does not effect it. The wife must return the money you gave her to buy an apartment, unless it was in exchange for a right of hers that you denied.