what are the methods on separating sugar and salt mixture?

Answer 1

Try looking for something which solves sugar, but doesn't solve salt, it woukd be something non-polar because salt is built of ions. Another one would involve something which reacts with one of them but not with the other one, and the reaction product(s) has to be a fluid or a gas, and then reverse the reaction after separating, but I don't think there will be such a reagent.
You can try melting the mixture. Sugar melts on a normal kitchen herd, for salt you need several hundred °C. But you have to be careful, because sugar caramelizes in the heat, and before it caramelizes it is very viscous so that separating won't be easy.

Answer 2

Lancenigo di Villorba (TV), Italy

You have not explicate your question.
I understood a solid mixture of kitchen's salt and sucrose.
If it is right, I have another proposal for you.
I NOT AGREE WITH PRECEEDING ANSWERS.

You cannot risk to proceeding in "dry warming" processes, since you could "caramelize" the sucrose ("empireumatism").
In food's industry, sucrose is rescued by its aqueous solutions by adding lime and long-term remaining together. In effect, lime show a interaction with sucrose, so the latter form a white precipitate at bottom's vessel. Acidic treatment of these bodies re-form sucrose solutions which results "other-free".

Hence, lime permit an alkaline treatment that separate sucrose. On the other hand, the greater fraction (e.g. halide salts like NaCl, MgCl2) of kitchen's salt remains in aqueous solution.
Other fraction of kitchen's salts show a different behaviour, see carbonates and sulphates. The latters may react with lime and may precipitate CaCO3 and CaSO4, as few soluble calcium's compounds. If you effect in warm-bath conditions, you can avoid carbonates and sulphate's pollution of precipitate.
After filtration, you retain obtained white solid. The latter is put in a new vessel (e.g. one Drexel's apparatus) where is submerged by a mixture of deionized water and ethanol (e.g. absolute ethylic alcohol). This hydro-alcoholic mixture permit you low solubility of calcium's compounds constituing white precipitate and satifacting solubility of air's gas. Among air's gas there is carbon dioxide. You closed tightly the Drexel and you expirate your breath in apposite pipe. Expirated gas-stream form bubbles in alcoholic mixture, so carbon dioxide react with calcium's compounds. Lately, you should obtain sucrose's solution in alcoholic media, thus sucrose is finally separated by calcium's compounds.
Sucrose's solution is concentrated by opening the Drexel ; this solution show high vapour's pressure, thus it dry itself.

I hope this helps you.

Answer 3

Dissolve both sugar and salt into water.

Perform the crystallisation procedure - the sugar will crystallize.

Answer 4

dissolve the mixture into water, salt is unsoluble while sugar is soluble

Answer 5

Boil away the water take the soilds add viniger to them salt will all desolve in viniger. sugar is left!

Answer 6

1) remove the water.
2) use static electricity , this will only attract the salt.

Answer 7

Add vinegar(CH3COOH) in it and boil it. The salt will get dissolved with vinegar.