新型胶磷矿捕收剂的开发研究-矿冶工程.PDFVIP

22 4 矿　冶　工　程 Vol.22 №4 2002 12 MINING AND ME ALLURGICAL ENGINEERING December 2002 马晓青 (, 222004) 　:, MD-34 , S , Na CO , P O 17.99%、MgO 711 2 3 2 5 4.42%, -0.074 mm 93.30%, ()、, P O 34.44%、MgO 2 5 1.40%、P O 88.10%, MD-34 0.61 kg/(t )。PA-42 2 5 。MD-34 。 :;; Study on New Flotation Reagent for Collophane MA Xiao-qing (Lianyungang Design Research Institute, Lianyungang 222004, J iangsu, China ) Abstract:A test is made sing Day ko phosphor s sample, which has a head grade of 17.99%P O , a MgO content of 4. 2 5 42%and a grind of -0.074 μm 93.3%.When MD-34 is sed as collector and Na2CO3 as modifying agent, concentrate which has a grade of 34.44%P2O5 and a MgO content of 1.40%can be obtained sing the closed circ it of one ro ghing (reagent- adding in batches), two-cleaning and regrinding, with a recovery of 88.10%P O and a MD-34 dosage of 0.61 kg/t(head). 2 5 The test res lts are abo t the same as the ones obtained sing PA-42.MD-34 is a completely new collector for collophane. Key words:flotation;collophane;collector 　　, 。 [1] ,, ,、, P O 15% , , 2 5 PA-42, ～23.58%,19%。 ( , , , P O ),,, 2 5 , 。