Sciencemadness Discussion Board

how to be precipitated paint from thinner ?

inspire21 - 24-4-2006 at 18:45

I work in project to be precipitated paint from thinner but i don't know how to do that . I find some information from internet . it show me how to settle paint from wastewater but I don't sure thinner use same as water. coagulant were I found = Fenton's regent , Chitosan , Feric chloride and alum
but i not sure it is soluble in thinner like water
Plz help me how to be precipitated paint from thinner
PS. Sorry i am very poor in english But i want let u help me PLZZZZZZZZZZZZ :(

[Edited on 25-4-2006 by inspire21]

neutrino - 24-4-2006 at 18:54

I don't understand what you mean by 'coagulation'. Does the word in your language have any other translations?

The_Davster - 24-4-2006 at 19:00

Neutrino, it is like when extracting lactose from milk you add acetic to the milk to coagulate the protein. Its pretty much the same as a catalyst for precipitation.

Couldent you add the paint in thinner to water (if it is soluble) and then coagulate from there. Or it might be easier to distill the thinner out.

inspire21 - 24-4-2006 at 19:39

Sorry : I mean how ( to be precipitated, to settle, to be deposited ) paint from thinner / I use thinner for washing paint


[Edited on 25-4-2006 by inspire21]

12AX7 - 24-4-2006 at 22:47

So you want to seperate the solvent from the pigment?

If nothing else, it can be distilled off.

Tim

DrP - 25-4-2006 at 05:25

first thing I thought of was dropwise addition into a nonsolvent for the paints binder (like water or another solvent the polymer part of the paint wont be soluble in), but I think distillation sounds best.

Fleaker - 25-4-2006 at 15:50

If you want to separate it without distillation, centrifuge it if you have access to one.

Either way, I still don't comprehend what exactly you are wanting?