Recent Posts1
Chemistry and process / Breaking an emulsion with salt. Where does the soap go?
« Last post by rumple on Today at 01:27:05 PM »Hi there. I've just finished making my first 200 litre batch of the year. It was a bit of a pain as the oil was really crappy stuff and it consumed a lot of KOH. I'd glycerol prewashed to try and dry it prior to brewing. In the end I got a really clear 10:90 pass. As it was late in the day I didn't do my normal water prewash which was a mistake.
I was experimenting with air bubbling through water for my first water wash of the batch of bio. During the process, the connection to the airstone came loose and the batch was subjected to big bubbles for an hour or so and it formed an emulsion.
I've used salt to break an emulsion I had some years ago and the water dropped really well. My question is does the soap come out with water or does it remain in the biodiesel? I think I'll go back to gentle water misting.
I was experimenting with air bubbling through water for my first water wash of the batch of bio. During the process, the connection to the airstone came loose and the batch was subjected to big bubbles for an hour or so and it formed an emulsion.
I've used salt to break an emulsion I had some years ago and the water dropped really well. My question is does the soap come out with water or does it remain in the biodiesel? I think I'll go back to gentle water misting.
