Is it permissible for a man to divorce his wife for not satisfying his sexual desires, even though she is a woman of good character, religious devotion, and beauty?

If a man, through his marriage to a righteous woman, achieves legitimate chastity by protecting his private parts and lowering his gaze, then it is apparently disliked to divorce her, because divorce is fundamentally disliked except for a valid need. What the questioner mentioned about sexual arousal does not rise to the level of a need that would remove the disliking, for the desired marital happiness is contingent upon character and religion, not upon mere sexual arousal. If legitimate chastity is not achieved with the wife, the man is advised to combine two wives and be just between them.