Efficient removal and recovery of lead from high arsenic antimony …

HNO 3 is a strong oxidizing agent for extracting Pb from secondary resources such as crystal glass waste (Mutafela et al., 2021), lead-bearing solder dross (Ichlas et al., 2020), and waste printed circuit boards (Lee et al., 2003).Ling et al. (Ling et al., 2023) first removed As through pretreatment, followed by the use of HNO 3 for the removal of Pb from the water …

Process flowsheet development for selective As removal …

SIM² KU Leuven is the KU Leuven Institute for Sustainable Metals and Minerals, one of the flagship KU Leuven Institutes.SIM² mission is to develop, organise and implement problem-driven, science-deep research and future-oriented education, contributing to the environmentally friendly production and recycling of metals, minerals and engineered …

Alternative Fluxes for Lead Bullion Refining | SpringerLink

Toowong Process™ | Core Resources

The Toowong Process TM achieves over 90% arsenic and antimony removal from many copper, lead and nickel concentrates.; The patented Alkaline Leaching (AL) process selectively leaches arsenic and antimony. Copper, lead and nickel …

United States Patent (19) 11 4,425,160 Mehta et al.

material efficient refining process for the removal of antimony and other elements from lead bullion by the addition of metallic sodium as refining reagent to the molten bullion. The process is intended for use either as a batch or continuous process in removing substantially all or a controlled amount of antimony from the lead bullion.

Antimony recovery from recycled terminals of lead-acid …

The oxidation and reduction process was modeled in FactSage 7.3 software for a better understanding of the Na2CO3 and SiC additions on the antimony recovery rates and compounds formed in the slag ...

Process for removing tin, arsenic and antimony from molten lead

The invention relates to a process for removing tin, arsenic and antimony from molten lead by means of oxygen or oxygen-containing gas mixtures, which is or are blown into the molten lead by means of at least one gas nozzle (2). To avoid damage to the gas nozzle, at least the oxygen outlet region (13) thereof, located in the molten lead (6), is enveloped by an …

Extraction of scattered and precious metals from lead anode …

A cleaning process for the removal and stabilisation of arsenic from arsenic-rich lead anode slime. J. Clean. Prod., 176 (2018) ... Arsenic, antimony and tellurium removal from lead anode slime by vacuum oxidation-gasification volatilization. Chinese J. Nonferr. Metals, 32 (1) (2021), pp. 251-261

(PDF) Recovery of Pure Lead-Tin Alloy from Recycling Spent Lead …

To tt an additional refining process using remove antimony, arsenic, and tin more thoroughly, tt the anodic polarisation of lead in molten sodium hydroxide has been proposed [30–32]. A method of removing nickel from lead using an aluminium additive to form an intermetallic Materials 2023, 16, 5882 5 of 20 compound is also known [33].

Comprehensive recovery of arsenic and valuable metals from lead …

Generally, take lead smelting for example, flue dust contains arsenic (As), zinc (Zn), lead (Pb), copper (Cu), antimony (Sb) and a certain amount of indium (In) etc. [15]. Obviously, the flue dust is also an important secondary resource, especially for the rare metal indium. ... Furthermore, the acid leaching process of arsenic removal will ...

Removing antimony from waste lead storage batteries alloy …

During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony xide, which easily was evaporated under vacuum so that antimony was removed ...

Removing antimony from waste lead storage batteries alloy …

In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony xide, which easily was evaporated under vacuum so that antimony was removed from …

A novel model of bismuth and lead impurities removal …

Behavior models of bismuth (Bi) and lead (Pb) impurities in the residue and distillate during the vacuum distillation purification of antimony (Sb) metal were established from the prospective of thermodynamic. The verification experiments of five times vacuum distillation purification had been successively carried out using the crude Sb metal and its residues as the …

[PDF] Removal of lead from crude antimony by using NaPo3 …

In order to solve the shortcomings when removing lead from crude antimony in the traditional antimony smelting, a new process was provided using NaPO3 as lead elimination reagent to …

Process of separating antimony and lead

the process whichv consists in melting the bullion, oxidizing substantially all of the tin and removing the same as a dross, malntaining the bath at an appropriate temperature and under oxidizing conditions to form a volatile oxide of antimony free from oxides of tin and lead until the antimony is" reduced to approximately 5 per cent, oxidiz- ;ing the remaining portion of the …

REMOVAL OF LEAD FROM CRUDE ANTIMONY BY …

In order to solve the shortcomings when removing lead from crude antimony in the traditional antimony smelting, a new process was provided using NaPO 3 as lead elimination reagent to yield ...

Separation of Lead from Crude Antimony by Pyro-Refining Process …

The process parameters that will affect the refining results were optimized experimentally under controlled conditions, such as the sodium metaphosphate charging dosage, the refining temperature and duration, and the air flow rate, to determine their effect on the lead content in refined antimony and the lead removal rate. A minimum lead ...

Separation of antimony from lead-antimony alloy by …

In this paper, we proposed a molten salt electrolysis method to remove Sb from Pb. In molten NaCl-CaCl 2, calcium (Ca) was selectively alloyed with Sb to generate a solid Ca-Sb layer at the top of the liquid Pb cathode because of the different alloying potentials of Ca with Sb and Pb.Because of the very high melting point and relatively low density, the solid Ca-Sb …

Removing antimony from waste lead storage batteries alloy …

Semantic Scholar extracted view of "Removing antimony from waste lead storage batteries alloy by vacuum displacement reaction technology." by Tiantian Liu et al. ... (Se) originates from the anode slime byproduct of copper electrorefining. A sulfurizing-vacuum distillation process was proposed to remove Hg, a typical impurity element exhibiting ...

(PDF) Removal of lead from crude antimony by …

In order to solve the shortcomings when removing lead from crude antimony in the traditional antimony smelting, a new process was provided using NaPO3 as lead elimination reagent to yield ...

Separation of antimony from lead-antimony alloy by molten …

In this paper, we proposed a molten salt electrolysis method to separate Sb from liquid Pb-Sb alloys in terms of forming a solid Ca-Sb intermetallic at the top of the liquid Pb-Sb …

12.6 Primary Lead Smelting

The third and final phase in the processing of lead ore to metallurgical lead, the refining of the bullion in cast iron kettles, occurs in 5 steps: (1) removal of antimony, tin, and arsenic; (2) removal of precious metals by Parke's Process, in which zinc …

Antimony Recovery from Lead-Rich Dross of Lead Smelter …

Antimony was selectively leached from a lead-rich industrial process residue called "dross" and recovered as an antimony oxide chloride (Sb4O5Cl2), which can be used …

Pyrometallurgical Processing of Secondary Lead Material: …

Removal of copper nickel, arsenic, antimony and tin from the bullion is achieved by temperature control and addition of various reagents such as caustic, sulfur or air to oxidize off the unwanted elements. ... Shumskiy VA (2012) Role of the raw material grade in selecting a lead smelting process. s.l.: TMS, 2010. Lead-Zinc, pp 475–480. Google ...

Efficient Removal of Arsenic and Antimony During Blast

The efficient removal of impurities, As and Sb, from recycled lead-containing materials is a key issue in the selection of the appropriate smelting technology for projects involving metal reuse.

(PDF) Removal of lead from crude antimony by …

Abstract. In order to solve the shortcomings when removing lead from crude antimony in the traditional antimony smelting, a new process was provided using NaPO3 as lead elimination reagent to ...

(PDF) Recovery of Pure Lead–Tin Alloy from …

In the current lead refining process, the tin oxidizes to slag, making its recovery problematic and expensive. ... Dependence of antimony removal rate on its initial content in lead during the ...

Process flowsheet development for selective arsenic removal, lead …

A pyro-hydrometallurgical process is proposed in this study for the selective arsenic removal and the Pb and Sb recovery from lead softening slag, which incorporates NaOH roasting followed by ...

Fire Refining of Rough Antimony from Impurities for

Results of an investigation aimed at optimizing the fire refining process for purification and extraction of antimony into a high-grade commercial metallic product are presented. Various refining agents were used for refining from lead, tin, iron, and arsenic. As a result of research, a method for fire refining of rough antimony was developed to obtain a high …

Recovery of Pure Lead-Tin Alloy from Recycling …

Research has already been conducted on the use of aluminium to remove antimony and copper from lead from scrap lead–acid batteries in terms of lead pre-refining. To remove antimony, arsenic, and tin more thoroughly, …