66 results about "Thiosulfate salt" patented technology

The invention discloses a thiosulfate gold extraction method taking an alkyl trimethyl quaternary ammonium salt as an additive and belongs to the technical field of wet metallurgy. Aiming at the problems of a traditional thiosulfate leaching method adopted by some ores that the leaching efficiency is low and the consumption of reagents is great, ore pulp is modified and then is treated; after the ore pulp is modified by using the thiosulfate gold extraction method, thiosulfate, ethidene diamine and a copper ion gold leaching solution are used for leaching and the leaching rate is higher than 75%; the process is simple to operate and easy to control; the consumption amount of the thiosulfate is very low; components of the gold leaching solution are simple and gold in the gold leaching solution is easy to recycle; the applicable range is wide and the leaching effect is good under the condition that the pH (Potential of Hydrogen) is 9-12; the leaching speed of gold ores which are highly slimed by limonite is rapid and the relatively-high gold leaching rate can be kept; toxic substances including sodium cyanide and the like are not utilized in a gold extraction process and toxic wastes are not discharged; the thiosulfate gold extraction method is environment-friendly.

The invention provides a safe sole material and a preparation method thereof. The safe sole material comprises, by weight, 100 parts of TPE, 150 parts of PS, 111 parts of PE, 70 parts of rice bran, 22 parts of dibutyl ether, 36 parts of ethyl acetate, 27 parts of thiosulfate, 18 parts of olive oil, 19 parts of acetone and 10 parts of aniline. The preparation method for the safe sole material comprises the following steps: mixing above-mentioned components in proportion and placing obtained mixture in an internal mixer for banburying; granulating the mixture after banburying with a granulator so as to obtain particles; cooling the particles in a water tank and drying the particles at room temperature. Soles prepared from the safe sole material provided in the invention are antistatic and oil resistant, have a good heat insulating and cold-proof effect, and are applicable to a variety of work environments.

The invention discloses a method for recovering gold from gold-loaded carbon in a thiosulfate system, and belongs to the field of wet metallurgy and precious metal recovery. The method comprises the steps that the gold-loaded carbon is washed with ionized water to remove ash, and is then filtered and heated to be activated; and then, the heated gold-loaded carbon is placed in a thiosulfate solution for desorption. The method has the advantages that the cost is low and a desorption reagent is safe and non-toxic; gold on the gold-loaded carbon can be effectively desorbed without destroying active carbon; and the purpose of cyclic utilization of active carbon can be achieved through re-modification of activated carbon.

The invention discloses a copper-catalyzed glycine-thiosulfate composite gold leaching process. The process comprises the following steps of adding copper sulfate, glycine or / and metal salt thereof and thiosulfate into gold ore pulp, adjusting the pH value of the ore pulp to 10.0-13.0, and then stirring and leaching to complete the gold leaching process. According to the process, in the copper-catalyzed glycine-thiosulfate composite gold leaching process, the glycine or the metal salt thereof is introduced, the glycine or the metal salt thereof can form a copper-glycine chelate with higher stability with Cu<2+> to stabilize copper in a solution, so that the oxygenolysis effect of a copper complex on thiosulfate radicals is weakened, the stability of a gold leaching system is improved, and the consumption of reagents is reduced; and the glycine or the metal salt of the glycine can also play a role of the gold leaching agent together with thiosulfate radicals, so that the consumption of thiosulfate can be further effectively reduced, and the consumption of thiosulfate is reduced to be below 4kg / t gold ore.

Disclosed herein are methods for otoprotection against platinum-based antineoplastic agents by administering a thiosulfate salt to a subject in need thereof. Typically, the thiosulfate salt is administered to the subject scheduled to be administered a platinum-based antineoplastic agent within 4 hours. Alternatively, the thiosulfate salt is administered within 7 hours after the administration of a platinum-based neoplastic agent.

The invention relates to a coated granular fertilizer, preferably wherein granules are sulfate-based or phosphate-based. When sulfate based granules, as in ammonium sulfate, the coating substance is an inorganic salt of alkaline earth elements, preferably calcium, such that when applied to the surface of fertilizers, forms calcium sulfate, preferably a calcium sulfate-dihydrate, as a protective coating. For a reactive coating of a thiosulfate, free sulfuric acid present on the granule reacts to provide an elemental sulfur coating. For ammonium phosphate-based granules, coatings may comprise compounds of Ca++, Al+++ and / or Fe+++ salts thereby forming a calcium, an aluminum, an iron, or mixed cation phosphate protective coating. Thiosulfate is also effective with phosphate based granules which are manufactured with sulfuric acid. Granules coated according to the disclosure have advantageous properties as the coating can be applied in a specified and sparing manner due to its tendency to adhere to surfaces during the reaction. Coated fertilizer granules of the disclosure are also advantageous in that, with regard to the applied amount of coating, they provide increased resistance to dusting in long term warehouse storage, to moisture uptake and to oxidative heating. Coating components also add nutrients to plants that can provide nutrients over a longer period of time such as a slow-release characteristic.

The invention relates to the field of heating water treatment, in particular to a non-toxic and non-corrosive heating water odorant. The heating water odorant at least comprises the following components in parts by weight: 40-60 parts of starch, 10-20 parts of allicin, 10-15 parts of mercaptan, 5-10 parts of thiosulfate, 25-35 parts of an alkaline agent and 15-25 parts of water. The prepared non-toxic and non-corrosive heating water odorant is widely applied to hot water boilers, pipe networks for heat supply of various heat exchangers and the like to form an intensive irritating stinky smell.The water odorant has easy operation, wherein the softening and stabilizing effects are achieved on the water quality; when leakage happens to the pipeline, the pipeline cannot be blocked, easily sniffing by people, the water leakage phenomenon is found, the maintenance progress is accelerated, and no corrosion is caused to copper, aluminum, stainless steel and the like existing in the heat distribution pipeline. By means of the water odorant, heating equipment damage caused by excessive corrosion of products can be avoided, manual system water loss can be thoroughly prevented, the heat distribution pipeline is an ideal energy-saving agent for preventing hot water loss, and the heating water cost and the fuel consumption cost are effectively reduced.

The invention discloses a thiosulfate silvering additive, a preparation method thereof and electroplate liquid containing the same. The thiosulfate silvering additive comprises 12-18 g / L of lauryl sodium sulfate, 3-5 g / L of polyethylene glycol, 10-13 g / L of nitrogen mustard, 5-10 g / L of cumin, 250-350 g / L of 1,10-phenanthroline monohydrate, 50-100 g / L of dimercaprol dimercaptopropanol, 50-100 g / Lof mercaptoethylamine, 100-150 g / L of ethylene glycol tetraacetic acid (EGTA) and the balance water. The additive provided by the invention enables the dispersity, the stability and the electroplatingperformance of the electroplate liquid to be quite remarkably improved, the pH value does not need to be adjusted repeatedly in the electroplating process, meanwhile, the performance including the smoothness, the adhesive force, the glossiness, the anti-tarish performance and the like of a silvering coating are remarkably improved, the thickness of the coating is further reduced, and phenomena such as fracturing do not exist; and the electroplate liquid provided by the invention does not contain cyanide, the mirror surface of the coating is bright, small in brittleness, good in adhesive force, flat in surface, bright, good in anti-tarish performance and high in heat resistance, application to the multiple fields of decorative electroplating, functional electroplating and the like can be achieved, preplating is not needed, and the bonding force can also be guaranteed.

The invention belongs to the technical field of precious metal recovery in hydrometallurgy, and particularly discloses application of high-sulfur coal and a method for recovering Au (S2O3) 2 < 3-> by using a roasted product of the high-sulfur coal, the roasted product obtained after the high-sulfur coal is roasted is used for adsorbing Au (S2O3) 2 < 3-> from thiosulfate gold leaching liquid, the high-sulfur coal is roasted for 2-8 h in an inert gas atmosphere at the temperature of 500-1200 DEG C, and the Au (S2O3) 2 < 3-> is obtained. Obtaining a roasted product; and the roasted product is taken and added into a thiosulfate gold leaching solution, the pH value of the thiosulfate gold leaching solution is adjusted to be 8-10, and Au (S2O3) < 3-> is adsorbed by the roasted product at the temperature of 30-60 DEG C. Compared with the prior art, the high-sulfur coal adsorption material is prepared by utilizing a one-step roasting modification method, and compared with a modified activated carbon process, the adsorption material is low in cost, simple in preparation process and environment-friendly.