If you can provide the author's name or a scan of the first page, a more precise identification may be possible.
However, it is important to note that in mainstream Islamic scholarship (fiqh, tafsir, hadith) or even in the established canon of Sufism or Arabic alchemy/hermeticism. It does not appear in standard bibliographies like Hajji Khalifa's Kashf al-Zunun or in modern university catalogues of Arabic manuscripts. ktab mftah alasrar fy kyfyt lm alnar
"The Book of the Key of Secrets on the Method of Gathering/Compressing the Fire." If you can provide the author's name or