Preliminary Discussion On The Detection Of Butyl Xanthate Concentration Based On COD Potassium Dichromate Reflux Method

In the beneficiation operation,in order to ensure the recovery rate,the amount of flotation reagents is used to the heavy-duty,multi-drug and oily pharmaceutical system.In the actual flotation process,as long as the pharmaceutical is maintained at a certain concentration,the minerals can be floated.The traditional pharmaceutical system often will cause the waste of medicine.In the flotation,the dosage of xanthate is mostly in g/t,but the concentration of xanthate is the key to flotation.At present,few people are involved in the detection of xanthate concentration.The timely detection of xanthate can not only reduce the waste of drugs,it can also save the cost of wastewater treatment and reduce the harm to the ecological environment,water body and human health.At present,the detection of xanthate is mostly UV spectrophotometry and other instrumental analysis methods.In order to avoid instrumental analysis,this article innovatively proposes the use of chemical oxygen demand(COD)potassium dichromate reflux method to detect the concentration of xanthate.The most representative butyl xanthate was selected,and the feasibility of COD potassium dichromate reflux method to detect the concentration of butyl xanthate was studied in detail by simulated wastewater test and actual pulp system test.The relationship between the concentration of flavonoids in water and the actual minerals and COD was mainly studied,the reasons for the influence of flavonoids on COD under different concentration conditions were analyzed,and the feasibility of COD detection of flavonoids concentration was discussed.The simulated wastewater test results show that when only butyl xanthate exists in the water,the COD of the water sample is positively correlated with the concentration of butyl xanthate,and the COD value of the water sample increases with the increase of the concentration of butyl xanthate.When the butyl xanthate concentration is low,the relationship between the COD value(y)of the butyl xanthate aqueous solution and the butyl xanthate concentration(x)is y=5.49+1.35x.When only pinitol oil exists in water,the change of COD in the water sample is unstable due to the solubility and viscosity of pinitol oil in water.When the concentration of pinitol oil is low,the relationship between the COD value(y)of the aqueous solution and the concentration(x)is y=30+0.28x^1.49,when the concentration of terpineol oil is high,the relationship between the two is y=16.5+195e^-x/208.When butyl xanthate and terpineol oil are mixed in water,the COD of the mixed solution has no obvious rules,and there is no correlation with the test result of a single agent.The COD value of the mixed solution is related to the interaction between butyl flavonoids and terpineol,and the COD measurement result is also affected by the amount of reagents and the amount of sampling,instrument cleaning.Taking Dahongshan Copper Mine as an example,in the flotation process,the concentration of Dinghuang medicine was detected by measuring COD.When there is only one agent of flavonoid in the mine,the COD in the mine is positively correlated with the concentration of flavonoid.The concentration of flavonoid can be calculated according to the COD value.When only one agent of pinitol oil exists in the slurry,there is no obvious correlation between the COD in the mine and the concentration of pinitol oil.When the two agents exist at the same time,the COD in the mine changes irregularly.Further research is needed to detect the concentration of Dinghuang in the mixed medicine.This paper breaks through the detection method of instrumental analysis,and makes a preliminary exploration of the feasibility of using COD method to detect the concentration of flavonoids,which provides a new idea for the detection of flavonoids concentration.