No, it can't be emulated by equalization. If at all it could be emulated by special DSP effects that also add some special distortion. There are plenty such effects available (in fact, a bit too many), but it's usually a horrible idea to slap one of those over an already mastered track.
The real problem has nothing to do with the warmth of vinyl, though. The real problem is that as a result of the infamous loudness war digital CDs are nowadays mastered in a completely different way than vinyl records, a way that is so overcompressed that it completely destroys the sound quality of the music - and provably so, as you can measure the horrible effects of this mastering precisely. It's not a subjective thing at all. Vinyl records have become much louder over the past few decades, too, but they have physical limits that digital media like CDs don't have. If a vinyl record was mastered like a CD, the needle would literally jump out of the track. (With adequate mastering CDs would be superior to Vinyl in almost every respect, but the reality is different due to the way mastering engineers were and are still forced to squeeze every inch of dynamics out of productions.)
Things get much worse with modern digital formats like MP3 or AAC. These would be barely tolerable with very careful mastering, but with modern "loudness competitive" mastering they create even worse artefacts than CDs due to intersample peaks and the interplay with the lossy recording process. Mid/side processing can reveal the horrible blubbering effects that these formats produce in case you can't hear them. (Although, if you can't hear them then you're probably deaf anyway and it won't matter.)
There is great hope that once broadcast stations have adopted new loudness measurement standards like EBU R128 the problem will vanish over time. These standards level the broadcast signals not to standard amplitude levels but according to broader loudness criteria - measuring mean values and taking into account the dynamic range of the audio material using standardized procedures. With these new standards we will hopefully get some dynamics and audio quality back to digital media which are principally vastly superior to vinyl.