As others have said, it's perfectly possible to get published without a PhD. I had a paper published as an undergrad and I have helped a couple of people, who worked for me in industry, get published.
I haven't tried it but I would expect that getting published on your own, and without prior experience of publishing, will be quite hard. There are a fair number of, often implicit, conventions that you're expected to follow.
My recommendation is to ask someone, at a university, who has published in your field to help. Or suggest someone to help. My experience of doing this has been positive but I appreciate that that is very anecdotal. This can work because they'll be named on the paper too so it's potentially beneficial for both parties.
BTW if you don't know of anyone in that position, that would be symptomatic of an issue that you'll have getting published. You'll be expected to have a reasonable understanding of the state of art in the field and be able to cite it. If you're not already in that position I would strongly recommend that that be the first thing you do.
Good luck. Hope it works out for you.