The phrase "a separate order for" is correct and usable in written English.
It can be used when referring to a distinct request or arrangement that is made independently from others, often in contexts like business or logistics.
Example: "Please submit a separate order for the additional supplies needed for the project."
Alternatives: "an individual request for" or "a distinct order for".
Then I tried to place a separate order for a second player, but at checkout Amazon.com informed me that a customer could not use the same coupon twice.
It turned out I clicked on the gift wrap option once during checkout, failing to realize that I had to click again to place a separate order for the $5 gift box.
Therefore, he erected a separate order for Plesiorycteropus, named Bibymalagasia, arguing that it would be unacceptable to leave a Recent eutherian unassigned to any order and that discovery of more material, or further analysis, was unlikely to demonstrate close affinities of Plesiorycteropus with any other order.
Some systematists have proposed a separate order for the frilled shark [ 3].
We will consider a separate ordering for each position k between 0 and N.
Ornithologists holding this opinion would recognize a separate order, Trochiliformes, for the hummingbirds.
A separate order listed rules for the news media, including that interviews would be in designated areas only.
The employee refused, and when he forgot to take the customer's money for a separate order, the customer delivered a lecture on comeuppance.
In a separate order, Obama mandated more openness for presidential records following a congressionally established five-year waiting period after any president leaves office.
The April 25 order, signed by U.S. District Judge Roger Vinson, served as the basis for a separate order, disclosed by former NSA contractor Edward Snowden, that forced a Verizon subsidiary to turn over its phone logs.
The researchers therefore argue that the three new species together make up a separate order, which they have named Mantophasmatodea, for its superficial resemblance to the praying mantis and phasmids, the stick insects.
