65 results about "Dibutyl dithiophosphate" patented technology

The invention provides a collecting agent for collecting minerals of oxidized ores such as ilmenite and a preparation method thereof, and belongs to the technical field of mineral flotation collectingagents. The mineral flotation collecting agent for the oxidized ores such as ilmenite is used after ammonium dibutyl dithiophosphate, ethylenediaminetetraacetic acid salt, maleate, sodium oleate andthe like are mixed; and the mineral flotation collecting agent has the characteristics of good water solubility, good dispersion and high selective adsorption ability to objective minerals, and is mainly used for flotation separation of valuable minerals in the oxidized ores such as the ilmenite, scheelite and wolframite. The preparation method of the mineral flotation collecting agent for the oxidized ores is simple in process, operation is easy to control, the prepared collecting agent has the advantages of high selectivity, good dispersion, low agent dosage and high mineral separation comprehensive efficiency, and quite important significance for promoting mineral separation of the minerals such as the oxidized ores is achieved.

The invention discloses a lead-zinc oxide ore flotation agent. The lead-zinc oxide ore flotation agent comprises, by weight, 11-18 parts of dithiophosphate 25, 7.8-14 parts of ammonium dibutyl dithiophosphate, 20-25 parts of sodiumn-butylxanthate, 35.7-50 parts of diethyldithiocarbamate, 4.5-8 parts of kerosene, 150-200 parts of sodium silicate, 30-50 parts of ammonium bicarbonate and 10-20 parts of terpenic oil. The lead-zinc oxide ore flotation agent has the advantages of being good in flotation effect, easy to prepare, low in cost and high in recovery rate, thereby being worthy of intensive study and popularization and application in flotation of lead-zinc ore difficult to separate. During flotation of the lead-zinc oxide ore difficult to separate, it is only required that the eight materials are proportionally mixed to form the new flotation agent, the recovery rate of lead-zinc concentrate can be substantially improved, and operating difficulty is reduced for flotation workers and agentia workers as well.

The invention discloses a combined zinc collecting agent for flotation of lead-zinc sulfide ore and application thereof. The combined zinc collecting agent comprises the following active components inparts by weight: 10-30 parts of ammonium dibutyl dithiophosphate, 30-50 parts of ethyl thiocarbamate and 30-50 parts of 2-aminothiophenol. According to the efficient combined collecting agent for sphalerite flotation, the combined collecting agent is composed of ammonium dibutyl dithiophosphate, ethyl thiocarbamate and 2-aminothiophenol and is easy to obtain, low in price, small in dosage and free of pollution. The ammonium dibutyl dithiophosphate is weak in collecting capacity, but has foamability, high sulfur and nitrogen collecting capacity and certain lead sulfide ore and zinc sulfide orecollecting capacity; compared with a conventional collecting agent butyl xanthate, 2-aminothiophenol has good flotation effect of on marmatite even under the condition that copper ion activation is not used, and has poor lead sulfide ore flotation effect; however, 2-aminothiophenol is a weakly acidic compound, and cannot fully react with zinc sulfide ore when a pH value is relatively low; and therefore, the components of the combined collecting agent can supplement each other.

The invention relates to a preparation method and application of a composite magnetic nanomaterial based on nanoscale zero-valent iron, and belongs to the technical field of composite magnetic nanomaterials. The preparation method particularly comprises the following steps that the nanoscale zero-valent iron is added into a reaction vessel loaded with absolute ethyl alcohol and acetonitrile, thencetyl trimethyl ammonium bromide, lecithin and ammonium hydroxide are added, ultrasonic treatment is conducted, and suspension liquid is obtained; under the condition of stirring, an ethanol solutioninto which sodium oleate is dissolved is dropwise added in the suspension liquid, and stirring is conducted at room temperature; tetrabutyl titanate is added in the mixture, after ultrasonic treatmentis conducted at room temperature, reaction liquid is transferred into a high pressure kettle, and a high-temperature reaction is conducted; after the reaction liquid is cooled to the room temperature, zeolite is added in the mixed liquid, and stirring is conducted; ammonium dibutyl dithiophosphate is added in the mixed liquid obtained after stirring is conducted, and stirring is conducted. The preparation method is simple, the problem that the surface of the nanoscale zero-valent iron is likely to be oxidized to be Fe<2+> or Fe<3+>, and reducibility is poor can be solved, and the removal effect of the nanoscale zero-valent iron on heavy metal ions in a water body is greatly increased.