METHOD FOR PRODUCING STARCH SUSPENSIONS AND STARCH PASTE HAVING IMPROVED PURITY, AND STARCH PRODUCTS

摘要

1. A method of obtaining a second suspension of starch having improved purity, including:! a. ensuring the presence of the first suspension of starch,! b. introducing into the first suspension of starch a component that causes flotation of impurities to the surface of the first suspension of starch, and! c. removing impurities from the first starch suspension, which gives a second starch suspension having improved purity. ! 2. The method according to claim 1, in which the first suspension of starch comprises an amount of from about 1 to 45 wt.% Solid starch. ! 3. The method according to claim 2, in which the first suspension of starch comprises an amount of from about 20 to 40 wt.% Solid starch. ! 4. The method according to claim 1, wherein the component is selected from the group consisting of gas, a gas-releasing chemical, and a chemical that has a density of less than 1.0 g / cm3, and mixtures thereof. ! 5. The method according to claim 4, in which the component is a gas selected from the group consisting of air, oxygen, nitrogen, carbon dioxide, ozone, fluorine, chlorine, hydrogen, helium, neon, argon, krypton, xenon, radon and their mixtures. ! 6. The method according to claim 5, in which the gas is selected from the group consisting of air, oxygen, nitrogen, carbon dioxide and mixtures thereof. ! 7. The method according to claim 6, in which the gas is air. ! 8. The method according to claim 4, in which the component is a gas-releasing chemical selected from the group consisting of inorganic carbonate salt, inorganic percarbonate salt, inorganic persulfate salt, inorganic fluoride salt, inorganic chloride salt, inorganic chlorite salt, inorganic chlorate salt , salts of inorganic perchlorate, organic carbonate, azide, peroxide, per�