Carbonate-type collecting agent reverse flotation drug and preparation method thereof
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A carbonate type, reverse flotation technology, used in flotation, solid separation and other directions, can solve problems such as large environmental pollution, achieve low cost, excellent flotation effect, improve flotation recovery rate and concentrate grade. Effect
Active Publication Date: 2015-10-28
YUNNAN PHOSPHATE CHEM GROUP CORP
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Problems solved by technology
This method of treating canola oil alkali refining soapstock will produce a large amount of waste water containing inorganic acids and oils, which is extremely polluting to the environment
Method used
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preparation example Construction
[0025] A preparation method of a carbonate type reverse flotation agent of the present invention, (1) a certain amount of canola oil alkali refining deacidification soapstock and 6 carbon to 14 carbon short carbon chain fatty acids, water and excess NaOH was placed in the reactor, and reacted at a temperature of 80°C to 100°C for 1.5h. The mass ratio of added water to fatty acid is (1~5):1, and the added NaOH is 1~1.3 times of the theoretical NaOH quality, which is deacidified soapstock and short carbon by canola oil alkali refining. The chain fatty acid saponification value is determined.
[0026] (2) Lower the temperature of the above saponified reaction solution to 40°C~70°C, then add the required amount of mixed alcohol and 1,1,3-triethoxybutane into the reaction kettle and stir for 30 minutes to obtain a fluid It is a carbonate type collophanite reverse flotation collector with good performance, dispersibility, collection and selectivity. The mass ratio of collector to ...
Embodiment 2
[0031] According to the ratio of 8% canola oil, 16% short carbon chain fatty acid, 70% water, and 4.1% sodium hydroxide, the materials were added to the reaction kettle, and after reacting at 100°C for 1.5h, the reaction solution was cooled to 70°C Add mixed alcohol and 1,1,3-triethoxybutane accounting for 10% of the weight of the collector, and continue stirring for 30 minutes to obtain the finished flotation agent.
[0032] Flotation agent beneficiation embodiment
[0033] (1) Example 3
[0034] A certain mine in Yunnan was selected, the raw ore P 2 o 5 Content 22.32%, MgO content is 6.40% collephosite, according to the dose of 900 grams / ton raw ore, add flotation agent preparation embodiment 1 described flotation agent and carry out reverse flotation operation, can obtain P 2 o 5 Concentrate of 30.11% and MgO content of 1.36%, the concentrate recovery rate is 76.24%, and the operation demagnesification rate is 87.78%. When adding canola oil soapstock alone as colle...
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Abstract
The invention relates to a carbonate-type collecting agent reverse flotation drug and a preparation method thereof. The preparation method comprises the following steps: (1) taking low erucic acid rapeseed oil alkali refining and deacidification niger and short carbon chain fatty acids (6-14 carbon) as collecting agent raw materials; (2) taking mixed alcohols and 1,1,3-triethyl orthobutyrate as foaming agents; (3) mixing the collecting agent raw materials with excessive amounts of alkalies and a certain amount of water, reacting for 1.5 h in a reaction kettle at 80-100 DEG C, reducing the temperature of a reaction liquid to be 40-70 DEG C, adding the foaming agents, and continuously stirring for 30 min, so as to obtain the finished product, namely the collophanite reverse flotation drug, wherein the mass ratio of the collecting agents to the foaming agents in the finished product, namely the reverse flotation drug, is (7-9):1. The carbonate-type collecting agent reverse flotation drug and the preparation method have the advantages that the flotation performance of the low erucic acid rapeseed oil alkali refining and deacidification niger and the short carbon chain fatty acids in the carbonate-type collophanite reverse flotation operation can be improved remarkably, the flotation recovery rate and the concentrate grade are improved remarkably, and low-cost industrial greasy leftovers are sufficiently utilized.
Description
technical field [0001] The invention relates to a carbonate type collophanite reverse flotation agent and a preparation method thereof. Background technique [0002] Collophosite beneficiation often uses tall oil and its saponified products, oxidized paraffin soap, oleic acid and its sodium salt and other fatty acids or their saponified products as collectors. Most of the fatty acids used as flotation collectors are derived from the sodium salt obtained by saponification of natural vegetable oils. However, due to the growth of the world population and the reduction of arable land, the mineral processing industry uses a large number of fatty acid collectors. "The phenomenon. Canola oil alkali refining soapstock is the leftovers in the rapeseed oil processing industry, and is generally prepared into acidified rapeseed oil through acidification in the industry. This method of processing canola oil alkali refining soapstock will produce a large amount of waste water containing...
Claims
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