Combination of collectors

Oil collectors are rarely used at present, but as a historical development process, it is the incubation period of combination drugs, and its practice and development provide inspiration for future combination drugs.
As a major breakthrough in the field of 1924 ~ 1926 flotation agents, soaps collector (1924), xanthate collector (1925) and dithio phosphate collector (1926) type plasma With the advent of collectors, the combined use of ionic collectors and hydrocarbon oils has increased, and the combined use of collectors has also begun to move from the spontaneous phase to the conscious phase. In the early 1930s, when soap was used to float apatite, the use of fuel oil as an additive reduced excessive foaming and increased flotation index. When xanthate flotation of lead and copper sulfide ore, adding a hydrocarbon oil may be strengthened and the metal ore flotation coarse ore gangue even the living body and, after the hydrocarbon oil collector in combination with an ionic increased, still the catch The combination of collection and use uses one aspect of research and application.
From the 1940s to the early 1950s, the combination of ionic collectors became the dominant aspect of the combined use of collectors. 1957 Stockholm International Conference on Mineral Processing格林博茨基report presented a summary of catch in the use of a combination of collectors, when the US reported 29 lead zinc ore concentrator in seven processing plant, are used Combined collectors, 2 to 5 of the 22 copper selection plants use combined collectors. Combined collectors have also been applied to copper-selected plants in the former Soviet Union. The report also systematically introduced the test results of their use of different xanthate, combined flotation sulfide or yellow sulphate and sodium oleate combined flotation oxidized sulphide ore, and the isotope tracer method was used to determine the adsorption capacity of the agent. The relationship between recovery rates and the use of advanced electronic instruments to measure contact time to study the effect of combination drugs on the rate of adsorption. The presentation of this report has aroused widespread interest in the use of collector combinations and has facilitated the development of combination drug research and applications.
In the past 30 years, the combination of pharmaceuticals has entered a stage of vigorous development and has the following characteristics:
(1) The combination of flotation agents is used more and more widely, from the combination of collectors to the combination of inhibitors, the combination of foaming agents, the combination of flocculants, and the combination of collectors and The application is the most, followed by the inhibitor. The combination system has also evolved from a binary combination system to a multi-component system, and the type of the pharmaceutical combination has also been developed from the combination of the same type of similar agents to the combination of the use of the heterogeneous agents and the combination of the shaped agents.
According to the statistics of 59 non-ferrous metal selection plants in Northeast China Institute of Technology (now Northeastern University) in 1976, 33 collectors were used alone, and 26 were used in combination, accounting for 44% of the total number of selected plants.
In 1978, the British Mining Journal reported statistics on dozens of copper sulphide and copper and molybdenum plants. The plant used in the combination of foaming agents accounted for 26% in 1960 and 41% in 1975.
According to the survey of the fifth annual mineral processing pharmacy evaluation report of China, a total of 81 combinations of combination agents in 1986 and 1987, of which 58 were collectors, accounting for 72%; 19 were inhibitors, accounting for 23%; Three combinations of agents, accounting for 4%; one flocculant combination. Among the 81 combinations, the binary combination is 73%, 90%, and the ternary combination is 8%, of which 4 are collectors and inhibitors. In the collector combination, most of them are In addition to the combination of anionic and anionic combinations of the same type of collector, the number of anionic and nonionic, anionic and nonpolar, and anionic and cationic isoforms is nearly 10%.
(2) The proportion of patents for combined pharmaceuticals is quite large. Among the 81 combinations mentioned above, there are 27 patents, accounting for 33%. Among the 58 collector combinations, 23 are patents, accounting for about 40%. The author of this book counts the literature on flotation reagents of the former Soviet Union Mining Digests from 1977 to 1984, in which the patent volume accounts for about 42%, that is, the patent weight of the collector combination is close to the patent weight of the entire flotation agent research.
(3) The combination drug product appears, that is, the manufacturer combines certain drugs into a mixture product in a certain proportion, for example, the Aerofloat 208 agent is a combination of ethyl sodium black drug and sec-butyl sodium black drug in a 1:1 combination. The drug, Ucon290 agent is a mixture of 75% MIBC and 25% Erophorus-65.
Based on the above aspects, there are many combinations of drugs, which are difficult to enumerate one by one, and can only be classified as examples.
The combination of collectors is the most used type of flotation agent, and the statistics of Table 1, Table 2, and Table 3 fully demonstrate the wide range and combination of them. Table 4, Table 5, Table 6 and the following figure are combined collector flotation non-ferrous metal sulfide ore (copper ore), rare metal ore (tungsten ore), industrial mineral (phosphorus ore) and non-metallic ore (hornblende) Illustrative results. Among them, when flotation hornblende is octadecylamine as the main collector, other agents such as distilled tar oil (M II TM), oleic acid, sodium oleate, sodium salicylate, butanol, octanol, etc. Both are added as organic additives and can be considered as another type of combination. [next]

Figure 8-4-1 pH=6.5(1) and 9.5(2) and 6. 2(3) using octadecylamine as a collector,
Effect of the amount of fat (a), phenol and polyethylene (b) and ether alcohol (c) on the flotation of hornblende

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