· Eluate is the combination of the mobile phase and the analytes. Therefore, eluate is what we are interested. • We add eluent to the column, and eluate is what is coming out of the column. • We can determine and control what we add as the eluent, but the nature of eluate is dependent on the eluent. We cannot control its constituents .

 · The optimal cementation conditions for removing lead from the solution were determined to have a stirring intensity of 300 rpm, a zinc particle size distribution <0.125–0.4> mm and an ambient ...

<p>A number of metallurgical techniques have been adopted for the recovery of gold from eluate solution in the mining industry, such as electrowinning and zinc cementation …

 · Rates of copper cementation from aqueous solutions of copper sulfate on a gas-sparged iron helical coil were determined under different conditions of Cu 2+ concentrations, liquid pH, superficial gas velocity, ferrous sulfate concentration, and the existence of a surface-active agent. The mass transfer coefficient of copper cementation on steel was …

 · The solution assayed after treatment, 0 dwt. 2 grs. to 0 dwt. 5 grs. The above experiments show the perfect practicability of cementation from troublesome solutions by keeping the rate of flow at 1/3 to ½ ton per …

 · The cementation or metal displacement reaction is an electrochemical process by which a more noble metal ion is precipitated from solution by a metal higher in the …

 · The reduction potential of zinc during cementation was determined to investigate the morphology of products. Residues after the cementation process from zinc sulphate solution were analyzed by SEM and EPMA to investigate the morphology of products. Different temperature will cause different structure of particles.

 · The optimal conditions found for cementation of rhodium, such as: reaction temperature, pH of the solution, mass of zinc and reaction time are respectively: 45°C, 1·5, 50 mg and 60 min. A verification experiment was conducted under optimum conditions and it was found that theoretically calculated and experimentally obtained results were in ...

 · The subject of interest in this study was lead cementation with zinc from solution after conventional agitate acidic leaching of converter dust from secondary copper production. The kinetics of lead cementation from an acid solution of lead acetate using zinc powder was studied. The optimal cementation conditions for removing lead from the …

 · Purposely made pertechnetate contaminated with Mo-99 and re-eluate by using old generator. Excellent removal of Mo-99 impurity was achieved and more than 80% of Tc-99m total activity was recovered. ... saline solution through the column of immobilized 99Mo will elutes the soluble 99mTc, resulting in a saline solution containing the 99mTc as ...

A continuous copper cementation test was carried out with and without thiosulphate addition to demonstrate the effect of thiosulphate on continuous copper cementation from a nickel solution. The experiment was conducted in a 100 cubic foot mixer tank at 10 per cent solid density of reduced particulate nickel while treating a process solution ...

 · All solutions for cementation were obtained by leaching of secondary zinc plant residue (obtained after filtration of acid leaching and water washing of zinc plant residue) in the 300 g/L NaCl brine solution at …

The process for recovering gold from carbon eluate which includes the steps of adsorbing gold-cyanide from solution using an anion exchange resin, eluting the gold using a suitable eluant to produce a high-concentration gold solution, and precipitating the gold in a vessel in a manner which allows the precipitate to be contained and to be processed further …

 · Eluate noun. A liquid solution that results from elution. Eluent noun. (analytical chemistry) In chromatography, a solvent used in order to effect separation by elution. Eluate verb. To subject or be subjected to elution. Eluate …

 · cementation should be considered as a process alternative to electro winning for direct treatment of carbon eluate in the CIP process (Miller, 1981). The ore is leached before going through zinc precipitation. After zinc-dust cementation, the processed gold is taken for smelting then moulded into blocks ready for sale.

 · In this article, the cementation of major impurities from zinc sulphate leach solution by the addition of zinc dust was studied by considering different parameters including time, mesh size, and percentage of excess zinc dust. The output obtained from various experiments was utilized for the design of experiments. A multi-level categorical …

<p>A number of metallurgical techniques have been adopted for the recovery of gold from eluate solution in the mining industry, such as electrowinning and zinc cementation techniques. Electrowinning process is facilitated via the application of current (electricity) to recover gold from eluate. A partial operating cost estimate of electrowinning in gold …

 · where v is the eluate volume (mL) and t is the elution time (s). For a given eluate volume, the corresponding required elution time can be estimated by the inverse relationship as follows: t 5 104.94 2 ˛11403.34 2 v/0.0009 where t is the elution time in seconds and v is the eluate volume in milliliters The initial fit of the calibration curve ...

 · The present study investigates the cementation of lead from AAS solution, using nickel powder as the reductant. 1.1. Ammoniacal ammonium sulphate solution …

 · Continuous Elution Using Preconditioning Solution and Hot Water Eluate. An arrangement for making the process described by Zadra (1952) continuous in which "20 grams of carbon are first preconditioned …

 · The copper cementation course in copper sulphate waste solution III (57.5 g/l of Cu and pH 0.29) performed rn the trials l-10, and in copper waste solution IV (43 g/1 of Cu and pH 1.45) performed ...

Cementation, then, will be favored under the following conditions: 1) in a high-energy setting where sediments are both porous and permeable; 2) where sediment water flux is …

 · The cementation method was investigated for copper removal and recovery from sulphate-based electroplating waste solutions with a copper content up to 60 g/l, …

 · The experiment using spiked solution (simulating the 99m Tc eluate) shows that the decontamination factors are 5 × 10 3 for 99 Mo and 5 × 10 4 for 99m Tc, while the recoveries of U, Pu and Am are more than 83% in 2 ml of effluent and 2 ml wash (Table 2). The slightly lower recovery is attributed to the small volume of 0.1 mol/l HCl wash solution.

The process for recovering gold from carbon eluate which includes the steps of adsorbing gold-cyanide from solution using an anion exchange resin, eluting the gold using a suitable eluant to produce a high-concentration gold solution, and precipitating the gold in a vessel in a manner which allows the precipitate to be contained and to be processed further …

The (68)Ge breakthrough <10(-3)% and no (68)Ge zone spreading/drift found in PET imaging of the (68)Ga generator column prove the excellent performance of the sorbents. (68)Ga eluate was purified on a small column of salt-form ion exchange resin using an aqueous alcohol solution mixture of hydrochloric and ascorbic acids, and halide salts.

 · As cementation took place, the pH of the cementation solution was continuously monitored during the experiments. Due to the absence of specific guidelines from …

6.5.1.3 Porosity Enhancement by Solution. Cementation reduces the porosity and permeability of a sand. In some cases, however, solution of cement or grains can reverse this trend. Schmidt et al. (1977) have outlined the petrographic criteria for the recognition …

Cementation. From adhesive bonding to conventional cementation techniques, Ivoclar offers you the right cementation solution for every clinical case, ranging from luting composites for highly esthetic restorations to resin-modified glass ionomer cements for restorations made from high-strength materials. 20 results. Relevance.

 · composition for the gold cementation from the ammonium thiosulfate solution was founded to be 1mol/l NH4OH, 0.01mol/l CuSO4 ∗ 5H2O and 0.4mol/l (NH 4 ) 2 S 2 O 3 at pH 9.5. of gold was recovered by zinc and aluminium powders at a Metal/Gold mass ratio of 30.

 · The performance of a rotating fixed bed reactor in recovering copper from industrial waste solutions by cementation is studied under various conditions. The rotating fixed bed is made of stacked woven steel screens to take advantage of two features of screens: the ability to present large area per unit volume and their ability to promote high …

 · PDF | A number of metallurgical techniques have been adopted for the recovery of gold from eluate solution in the mining industry, such as... | Find, read and cite all the …

 · PDF | A number of metallurgical techniques have been adopted for the recovery of gold from eluate solution in the mining industry, such as... | Find, read and cite all the research you need on ...

If the recommended initial phosphate-buffered saline wash was omitted before the use of the commercial wash solution, the eluate reactivity was stronger (2+(-)3+). When low-ionic-strength (< 0.03 M) saline was substituted, anti-D was eluted from D- RBCs. All last washes were nonreactive. Antiglobulin tests on all adsorbing D- were negative.