The phrase "an arduous process for" is correct and usable in written English.
It can be used to describe a challenging or difficult procedure that someone has to go through, often in a formal or academic context.
Example: "Completing the research project was an arduous process for the students, requiring countless hours of work and dedication."
Alternatives: "a challenging task for" or "a difficult journey for".
"It has been an arduous process for them but they are now confident they have more than 60 lines available," he said.
"This has been an arduous process for our creditors and shareholders, but we will continue moving ahead in the interim and look forward to the day when we achieve finality".
But acquisition will certainly be an arduous process for Synopsys.
Right now it's an arduous process for us.
The new operation signals the culmination of an arduous process for Upslope and also serves as another example of the local effects from the craft beer industry's boom.
It would certainly make dealing with other organisations clearer; without the necessary standards of practice, getting in and out of hospitals to prepare their members for cryopreservation can be an arduous process, for example.
Though the collection of phenotypic data from large numbers of inbred strains of mice can be an arduous process, especially for complex behavioral paradigms, such efforts may pay large dividends in the form of novel hypotheses generated from whole genome analysis.
It was hand-set from individual metal letters pieced together -- an arduous process that endured for four centuries.
Speaking to reporters after his performance, Browne urged them to talk about the "consensus process" that Occupy Wall Street has adopted to make decisions, warning that it's "an arduous process and not for the faint of the heart".
Qualifying for Euro 2016 was an arduous process, with 53 nations competing for the 23 spots alongside the host over about 14 months.
This adds complications to an already arduous process for bootstrapped early-stage startups.
