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Application of Trihydroxybenzene and Its Derivatives as Bismuth Inhibitors in Flotation Process
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A trihydroxybenzene, flotation process technology, applied in flotation, solid separation, etc., to achieve good selectivity, simple pharmaceutical system, and improve resource utilization
Active Publication Date: 2019-10-08
CENT SOUTH UNIV
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Abstract
Description
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Problems solved by technology
Among the existing beneficiation reagents, there are few reports on the use of trihydroxybenzene as a flotation inhibitor
Method used
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Embodiment 1
[0044] 1. Raw materials
[0045] The molybdenum-bismuth sulfide ore contains 0.18% molybdenum grade and 0.10% bismuth grade, the molybdenum is mainly molybdenite, and the bismuth is mainly bismuthite; 1,2,3-trihydroxybenzene is used as bismuth inhibitor.
[0046] 2. The operation steps and technical conditions are as follows:
[0047] ⑴Molybdenum-bismuth mixed roughing operation: Weigh 1000kg of molybdenum-bismuth ore, grind it to -200 to account for 80-85%, add water to adjust the pulp concentration to 25-35%, pour the pulp into a suitable flotation tank, Add pH adjuster sodiumcarbonate to the flotation tank to adjust the pH of the pulp at about 8, then add 1000g / t inhibitor water glass, stir for 3 minutes, then add collectors 300g / t xanthate and 100g / t kerosene, stir for 3 minutes minute, finally add 30g / t foaming agent 2# oil, and carry out molybdenum-bismuth mixed roughing operation after stirring for 3 minutes;
[0048] (2) Sweeping operation: add 50g / t kerosene to the t...
Embodiment 2
[0055] 1. Raw materials
[0056] Same as Example 1.
[0057] 2. The operation steps and technical conditions are as follows:
[0058] Other operating steps and technical conditions are consistent with Example 1, the difference is that: in step (3), add the maximum amount of 1500g / t 1,2,3-trihydroxybenzene within the protection scope of the present invention; in step (4), select and add 4 times The maximum dosage within the protection scope of the present invention is 500g / t, 500g / t, 350g / t, 300g / t 1,2,3-trihydroxybenzene in sequence.
[0059] The experimental result of table 2 embodiment 2
[0060]
[0061]
Embodiment 3
[0063] 1. Raw materials
[0064] Same as Example 1.
[0065] 2. The operation steps and technical conditions are as follows:
[0066] Other operating steps and technical conditions are consistent with Example 1, the difference is: in step (3), add the minimum dosage of 200g / t 1,2,3-trihydroxybenzene within the protection scope of the present invention; The maximum dosage within the protection scope of the present invention is 300g / t, 50g / t, 50g / t, 50g / t 1,2,3-trihydroxybenzene in sequence.
[0067] The experimental result of table 3 embodiment 3
[0068]
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Abstract
The invention belongs to the technical field of nonferrous metalbeneficiation, and particularly relates to an application of trihydroxy benzene and ramification thereof serving as inhibitor in a flotation process. The trihydroxy benzene and / or the ramification thereof serving as medicine restraining bismuth restrain / restrains the sulfidemineral flotation of the bismuth in the flotation process;the ramification of the trihydroxy benzene comprises that at least one hydrogen on a benzene ring of the trihydroxy benzene is replaced by an R radical, and the R radical is selected from one of methyl and ethyl. The flotation process comprises at least one operation procedure of roughing operation, concentration operation and scavenging operation. In the roughing operation, the total consumptionrange of the trihydroxy benzene or the ramification thereof is 200 g / t raw ore-1,500 g / t raw ore; in the concentration process, the total consumption range is 50 g / t raw ore-500 g / t raw ore; and in the scavenging operation, the total consumption range is 0 g / t raw ore-300 g / t raw ore. The trihydroxy benzene and / or the ramification thereof can restrain bismuth contained sulfide minerals well in theflotation process.
Description
technical field [0001] The invention belongs to the technical field of non-ferrousmetalbeneficiation, and particularly relates to the application of trihydroxybenzene and its derivatives as bismuth inhibitors in the flotation process. Background technique [0002] my country is rich in bismuth resources, but most of the bismuth minerals are symbiotic with metals such as tungsten, molybdenum, lead, tin, and copper in the form of bismuthite, and rarely form deposits that are worth mining alone. Bismuthite has the natural buoyancy of molybdenite, and is easily collected by xanthate, black powder and sulfurnitrogen collectors, and it is difficult to separate. A large number of literature searches show that flotation is the main method for separating bismuth-containing minerals from non-bismuth minerals. At present, the flotation separation inhibitors of bismuthite and other associated metalsulfide ores are mainly cyanide and sodium sulfide. Cyanide is an efficient inhibitor...
Claims
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Application Information
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