"partitioned from" is correct and usable in written English.
You can use it to indicate a separation into distinct parts, especially when talking about a separation in a physical or figurative sense. For example, "The area was partitioned from the rest of the city by a large wall."
The two have gone to war three times since Pakistan was partitioned from India after independence in 1947.
How much can she keep her "real" self partitioned from her characters before she just starts playing it safe?
Most particularly, he does not like putting new music into its own box, partitioned from the rest of music and from life.
The dining room, which is partitioned from the living room by a basket-weave wood-slat sliding screen, is deep red.
Northern Ireland was partitioned from the new Irish state to stave off the threat of armed revolt by its Protestant community.
Thus "insulated from America", for seven days Beuys inhabited the gallery space with a wild coyote, partitioned from visitors by a chain-link fence.
User data is kept partitioned from the device's operating system so that any updates to the system do not affect the user's personal data.
The mass migration of Pakistanis is now the largest since the country was partitioned from India more than 60 years ago, and it added to concerns over both security and the government's capacity to provide immediate relief to the displaced.
In the V.I.P. section, which was partitioned from the rest of the club by shoulder-high walls and several large campaign placards, MARISA TOMEI, FISHER STEVENS and STANLEY TUCCIwatched the speeches with their friends.
When she does, she goes into the ICU, where she lies sedated on a narrow bed partitioned from ward chaos by a higher form of shower curtain; nurses pass otherwise, distracted, attending to others.
The occasional finned Cadillac, the ghost of pre revolutionary times, cruised slowly past, and the chatter of families filtered from the balconies or stoops of apartments partitioned from what had once been the mansions of the elite.
