Products

feldspar flotation concentrate

(PDF) Feldspar concentrates from albite granites

Finally, a high-grade potassium feldspar concentrate was produced composed of 12·65% K2O, 3·1% Na2O, 0·11% Fe2O3, and 0·04% TiO2 with a glossy white firing button at 1200°C. View Show abstract

More

Selective flotation of K-feldspar from Na-feldspar in

01/10/2019· The K-feldspar flotation resulted in a K-feldspar concentrate of 14.3% K 2 O at 77% K-feldspar recovery and K 2 O/Na 2 O ratio of 10.4. The NaOH conditioning of the fluorine-amine activated feldspars resulted in rapid desorption of fluorine, and the selectivity of the process was assumed to result from the more rapid desorption of fluorine-amine complexes from the Na-feldspar surface compared

More

Concentration of K-feldspar from a pegmatitic feldspar ore

01/11/2006· Bench scale flotation experiments were performed to test the effect of NaCl on the ability to concentrate K-feldspar from a pegmatite ore both at natural and acidic pH. A flowsheet is developed as a guide for commercial utilization. The mechanism of the process is elucidated in the light of earlier fundamental results. 2.

More

Feldspar production from dimension stone tailings for

01/01/2019· Chemical analysis of the flotation concentrate were inconsistent for milling times of 5 and 10 min, (see Fig. 8), since the grade of K 2 O and feldspar were similar in both concentrate and tailings. There was a slight increase in the feldspar grade in the concentrate for 5 and 10 min milling, but a reduction for 15 min (from 67.3 to 66.2%), which was unexpected. It is possible to notice the enrichment of quartz in the tailings, indicating an interaction between feldspar

More

Effects of Ultrasound on Desliming Prior to Feldspar Flotation

When the flotation products after ultrasonic pre-treatment were investigated, it was seen that the feldspar concentrate from the sample U1 contained 9.01% Na 2 O, 0.19% Fe 2 O 3, 0.15% TiO 2 and 0.47% MgO while the concentrate by conventional flotation yielded 8.40% Na 2 O, 0.23% Fe 2 O 3, 0.18% TiO 2 and 0.36% MgO. These data showed that the feldspar concentrate was quite clean with the help

More

Selective flotation separation of spodumene from feldspar

05/06/2020· Micro-flotations of pure spodumene and feldspar were performed on an XFG flotation machine (spindle speed 1602 r/min) with a 40 mL small cell volume. The experimental steps were as follows: 2 g pure minerals and 38 mL ultrapure water were first added to the flotation cell; after stirring for 1 min, dilute hydrochloric acid or sodium hydroxide then was added to pulp to adjust pH for 2 min.

More

(PDF) Combined application of different collectors in the

A flotation test was carried out at optimum conditions for flotation of feldspar minerals. The mass recovery of feldspar concentrate was 52.11% of feed (-250+38) µm. At such optimum conditions, a...

More

Differential Flotation of Some Egyptian Feldspars for

The use of NaCl addition in flotation was found to increase the K-feldspar grade in the concentrate. The flotation behavior of feldspars is essentially determined by their surface condition and thus by the extent of hydrolytic decomposition of feldspar surfaces.

More

A novel approach for flotation recovery of spodumene,

10/02/2018· This paper also puts forward an environmentally friendly flotation flowsheet aimed at recycling feldspar in spodumene tailings, through which K 2 O + Na 2 O has a grade and recovery of 11.33% and 61.33%, respectively, in the feldspar concentrates. By adopting the flowsheets presented in the paper, nearly 70% of raw lithium pegmatite ore is translated into qualified mica, spodumene and feldspar

More

US9675980B2 Flotation process for recovering feldspar

US9675980B2 US13/520,854 US201113520854A US9675980B2 US 9675980 B2 US9675980 B2 US 9675980B2 US 201113520854 A US201113520854 A US

More

(PDF) Feldspar concentrates from albite granites

Finally, a high-grade potassium feldspar concentrate was produced composed of 12·65% K2O, 3·1% Na2O, 0·11% Fe2O3, and 0·04% TiO2 with a glossy white firing button at 1200°C. View Show abstract

More

Concentration of K-feldspar from a pegmatitic feldspar

01/11/2006· Manser (1975) determined that the amount of HF for activation of feldspar surface concentrate varies between 1 and 9 kg/t. It is also found in this study that conditions of feldspar formation greatly affects the optimum dosage of HF. For instance, altered feldspar requires higher HF dosage for activation. HF removes altered layers and cleans the surface to facilitate the formation of alumina

More

Effects of Ultrasound on Desliming Prior to Feldspar

When the flotation products after ultrasonic pre-treatment were investigated, it was seen that the feldspar concentrate from the sample U1 contained 9.01% Na 2 O, 0.19% Fe 2 O 3, 0.15% TiO 2 and 0.47% MgO while the concentrate by conventional flotation yielded 8.40% Na 2 O, 0.23% Fe 2 O 3, 0.18% TiO 2 and 0.36% MgO. These data showed that the feldspar concentrate was quite clean with the help of

More

(PDF) Combined application of different collectors in the

A flotation test was carried out at optimum conditions for flotation of feldspar minerals. The mass recovery of feldspar concentrate was 52.11% of feed (-250+38) µm. At such optimum conditions, a...

More

extraction of iron from feldspar

Feldspar Beneficiation Flotation Process. Beneficiation by Flotation of feldspar is well established It is a simple matter by flotation to remove the contaminating impurities and keep the alumina (Al2O3) content at 19% even on low grade feldspar ores Dry recovery methods are economically limited to about 17% Al2O3 The problem in feldspar flotation is to recover slime free granular products

More

Concentration of K-feldspar from a pegmatitic feldspar

The K-feldspar flotation resulted in a K-feldspar concentrate of 14.3% K2O at 77% K-feldspar recovery and K2O/Na2O ratio of 10.4. The NaOH conditioning of the fluorine-amine activated feldspars

More

Differential Flotation of Some Egyptian Feldspars for

The use of NaCl addition in flotation was found to increase the K-feldspar grade in the concentrate. The flotation behavior of feldspars is essentially determined by their surface condition and thus by the extent of hydrolytic decomposition of feldspar surfaces.

More

US9675980B2 Flotation process for recovering feldspar

US9675980B2 US13/520,854 US201113520854A US9675980B2 US 9675980 B2 US9675980 B2 US 9675980B2 US 201113520854 A US201113520854 A US

More

Effects of Ultrasound on Desliming Prior to Feldspar

Two representative feldspar ore samples taken from the Milas-Mugla region in Turkey were separately tested for desliming and flotation by conventional and ultrasonic methods under similar

More

US6098810A Flotation process for separating silica

A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate

More