Nov 01 2016 The role of HF in the flotation of feldspar has been studied by several authors in the past and several possible mechanisms have been proposed (Dean and Ambrose 1944 Graham and Horning 1947 Buckenham and Rogers 1954 Smith and Smolik 1965 Perry et al 1983) In conclusion all reported studies support the suggestion that the feldspar surface could become negative when treated with HF because it seems to remove positive cations from the feldspar surface
Flotation experiments performed on a quartz feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric acid (HF) simply by the aid of a frother High grades and good recoveries were obtained for both quartz and feldspars A feldspar concentrate of 99 9 at a recovery of 95 6 was produced.The fluorine free flotation process is to take advantage of the differences in quartz and feldspar structure rationally mix the ratio and dosage of anion and anion mixed collector and make use of their different Zeta potentials to preferentially float the feldspar and achieve the separation.
Hf free flotation of feldspar Flotation separation method of feldspar and quartz In 1939 the United States Homola (O Meara) proposed by HF as activating agent fatty amine as collector of feldspar flotation method agent although the law is a good separation effect and has been widely used in industrial production in a long period of time.Table of ContentsConventional Feldspar Flotation Using HFThe Non Hf Feldspar Flotation MethodProcess DescriptionExperimental Results Feldspathic deposits occur widely throughout the United States but North Carolina California Connecticut and South Carolina accounted for over 80 of the total domestic feldspar output for the year 1973 Pegmatites and granites constitute the major feldspar.
Oct 01 2019 The selective fluorine activation of the feldspar surface by HF or similar (i e NaF + acid) is generally understood to be the reason for the preferential amine adsorption onto feldspar as the amine ion cannot sufficiently adsorb on the feldspar surface by itself to promote the flotation of feldspar in the acidic medium (Shimoiizaka et al 1976).This report describes work carried out to establish and evaluate methodologies for the\ud laboratory froth flotation of feldspar and kaolin One of the main aims was to ascertain the\ud feasibility of separating glass grade feldspar from granite quarry dust and [meso As part of this \ud a method for HF free froth flotation of feldspar was.
Hf Free Flotation Of Feldspar Hf Free Flotation Of Feldspar Crusher Malaysia Raymond Crusher Malaysia Raymondraymond crusher raymond crusher Suppliers and Alibaba offers 325 raymond crusher products About 27 of these ar the price of 350 tph crusher ++ best feldspar.The trading flotation separation method of quartz feldspar is the HF acid method consider of the environment protection most mineral workers prefer to free fluorine acid method Flotation separation of potash feldspar and albite The separation of potash feldspar (orthoclase and microcline) and albite is a challenging issue because they are.
It has been demonstrated that quartz could be floated in the presence of Ca2 + Ba 2+ and Sr 2+ but feldspar does not respond to flotation with these reagent systems These reagent systems open up possibility for HF free flotation separation of quartz from feldspar.The general circuit for commercial separation of feldspar consists of three sequential stages of flotation all of which are carried out in an acid medium Usually before flotation the feed is.
The flotation responses of quartz and feldspar with alkylsulfonates' collectors in the presence of some alkaline earth metals were studied The activation mechanism in these systems is discussed in terms of hemimicellization and surface precipitation of neutral component of cation sulfonate complex e g Ca(OH)RSO 3 Selective flotation of quartz from feldspar was anticipated from the single.In this study the effects of ultrasound on removal of impurities from raw feldspar were investigated by testing with a newly developed flotation cell with various frequency and power intensities prior to multistage feldspar flotation Particularly the quality of feldspar concentrates the volume of removed slimes and the content of impurities were taken into account to reveal the impacts.
Mar 20 2019 A novel green cationic surfactant Poly (propylene glycol) bis (2 aminopropyl ether) (PEA) with multiple amine groups was utilized as a collector for flotation separation of quartz from feldspar quartz associated ore (FQA) without acid (particularly HF) and alkali The collecting performances and the adsorption mechanisms of PEA on the quartz FQA were investigated through flotation.The flotation machine rotor with an electronic variable speed drive was 0 15 m in diameter The flotation cell size was 13 L The collector used was an amine (trade name ARMAC T) — the collector typically used in feldspar flotation  Hydrofluoric acid (HF) was used as a depressant regulator to prevent quartz flotation This has the.
Nov 01 2016 The role of HF in the flotation of feldspar has been studied by several authors in the past and several possible mechanisms have been proposed (Dean and Ambrose 1944 Graham and Horning 1947 Buckenham and Rogers 1954 Smith and Smolik 1965 Perry et al 1983) In conclusion all reported studies support the suggestion that the feldspar surface could become negative when treated with HF because it seems to remove positive cations from the feldspar surface.Explained that a coarser grain is difficult to float than a finer one and K feldspar is easier to float than plagioclase  In this study cationic flotation has been studied as a function of NaCl concentration in HF medium to obtain individual feldspar minerals i e Na feldspar and K feldspar as separate products from weathered granitic.
However a HF free flotation process using a mixture of the cationic and anionic collectors for the separation of feldspar from sand was described by Katayanagi  and the process was reported to be applied in industrial practice   In an aqueous medium the feldspar surface shows after a short time changes which have a neg.In order to develop the HF free flotation reagent system the main objective of this investigation was to study the possibility of separation of quartz from feldspar using non ionic surfactants as.
G) selectively recovering petalite substantially free of feldspar minerals from said third flotation process 22 The method of claim 21 further comprising preconditioning said slurry with hydrofluoric acid prior to step (b) 23 The method of claim 21 wherein said slurry subjected to step (f) has a.Cationic flotation of feldspar (amine + HF) in presence of NaCl was conducted by CengizDemir of Turkey in 2010 to separate both Na and K feldspar  NaCl addition controls amine adsorption on.
A flotation process for recovering feldspar from a feldspar containing feed material comprising the following steps 1 forming an aqueous suspension of a feldspar containing feed material in the absence of hydrofluoric acid wherein the suspension comprises from 0 004 to 0 3 wt of a flotation reagent comprising a one or amines containing.In this study non hydrofluoric acid flotation methods used in feldspar quartz separation were compared with each other and with the conventional HF amine method The results showed that conventional HF amine method is the most effective and selective method Experimental studies indicate that an acceptable concentrate for industrial application.
US3844939A US00232280A US23228072A US3844939A US 3844939 A US3844939 A US 3844939A US 00232280 A US00232280 A US 00232280A US 23228072 A US23228072 A US 23228072A US 3844939 A US3844939 A US 3844939A Authority US United States Prior art keywords flotation feldspar carbon atoms sulfonate medium Prior art date 1971 03 10 Legal status (The legal status is.