antimony refining pressure
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antimony refining pressure

antimony refining pressure - krupskaskola

antimony refining process xp - Reinvent Yourself. Antimony process - American, Smelting Refining The process for treating copper-bearing antimonial lead which comprises concentrating the antimony in a dross con Jump to content Welcome to HIP Heavy Industry Machinery Co.,

Separation behavior of arsenic and lead from antimony ...

Antimony Arsenic a b s t r a c t When classifying impurities in commercial pure antimony (Sb, 99.8%), arsenic (As) and lead (Pb) should be brought to the forefront consideration. Due to the known difficulty of As removal through zone refining, it is meaningful to investigate its separation tendency

Separation behavior of arsenic and lead from antimony ...

01-05-2020  It could be reduced from 780 ppm to 450 ppm in the residual Sb product even at low temperatures and high pressures (e.g. at 1050 K with pressure of 200 Pa), but its concentration was still too high for the further purification by zone refining.

VACUUM REFINNING COOPER BLISTER TO REMOVE ANTIMONY

antimony evaporation from cooper blister are from 1,82 10-5 ms-1 to 3,43 10-5 ms-1 at 1 473 K (8 Pa) - 1 523 K (133 Pa). Key words: vacuum refining, blister copper, antimony, evaporation of metals, induction vacuum furnace

Antimony Smelting - Mineral Processing Metallurgy

The history of the antimony industry of China dates back to 1897 when the Tai Shing Co. was formed, under contract with the Hunan Bureau of Mines, for the smelting of the ore to crude; and in 1908 the Wah Chang Mining Smelting Co. was formed for the smelting and refining of the ore and crude to regulus.

VACUUM REFINNING COOPER BLISTER TO REMOVE ANTIMONY

antimony evaporation from cooper blister are from 1,82 10-5 ms-1 to 3,43 10-5 ms-1 at 1 473 K (8 Pa) - 1 523 K (133 Pa). Key words: vacuum refining, blister copper, antimony, evaporation of metals, induction vacuum furnace INTRODUCTION In the process of vacuum copper refining, the remov-al of arsenic, antimony and lead is of fundamental impor-tance.

Lead and tin removal from antimony metal by refining ...

antimony refining at 800℃, which resulted in the lead decrease down to 0.015% versus its initial content of 4% in the rough metal. The method requires maintaining the ratio of P 2 O 5: Na 2 CO 3 = 3:1 and the rate of the refining mixture should be 20% of the metal weight.

US4425160A - Refining process for removing antimony

In using aluminum for antimony removal, the refining process is carried out at a temperature of 1300° F. The aluminum, upon addition, melts and is mixed into the bullion to react with the antimony...

Vacuum refining copper melts to remove bismuth, arsenic ...

Rates of removal of bismuth, arsenic, and antimony were measured over temperature and pressure ranges of 1450 to 1610 K and 3 to 30 pascals, respectively. Bismuth removal was found to be rapid: 1 to 18 x 10-5 m/s. Arsenic and antimony removal were quite slow: 0.2 to 3 x 10-5 and 0.1 x 10-5 m/s, respectively, and evaporation controlled rates of refining.

Antimony - Wikipedia

Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3).Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name kohl. Metallic antimony

Recovery of bismuth and antimony metals from pressure ...

To reduce the arsenic content in the rough metal to 0.1% and exclude the stages of antimony refining from arsenic, reductive melting is proposed in the presence of lead compounds.

Refining process for removing antimony from lead bullion ...

An improved process for refining lead bullion containing antimony, in which the bullion is initially heated in a refining vessel to about 25° F. (14° C.) above the bullion melting point, and is therea. Refining process for removing antimony from lead bullion - GNB Batteries Inc.

Antimony Recovery from End-of-Life Products and

08-02-2016  Depending on the concentrations of gold and antimony, different categories of Au-Sb-containing sulfide ores can be distinguished: (1) ores in which gold is the main valuable component and antimony is a harmful impurity, (2) gold-bearing ores in which the amount of antimony is considerable and for which it is economically viable to recover antimony as a commercial byproduct, (3) antimony

antimony ore processing and refining - hulpmetdetuin

Antimony ore - Gold Refining Forum. Feb 02, 2015 As regard the above subject,I came in contact with a geologist that offer to sell the antimony ore to me at a bearable amount and while reading different materials on this subject I think it worth researching into. the ore contain 48% antimony,14% zinc and few other metals.

Chinese Antimony Under Pressure MiningFeeds

10-09-2012  Chinese Antimony Under Pressure. Sep 10, 2012 Posted by: Mike Luft Antimony mine workers in China. China remains by far the world’s largest producer of primary antimony. It's estimated that China accounted for around 70% of official mine production in 2011, down from around 80% in

ELECTROLYTIC REFINING OF ANTIMONY BULLION I

Vol. 95, No. 3 REFINING OF ANTIMONY BULLION 147 circulation or agitation of the electrolyte. Bullion sample 1 (Table I) was used in these e.xperiments and was cast into anodes in a vertical carbon mold. Fresh electrolyte containing 84 g./1. antimony as antimony tri- fluoride and 530 g./1.

Lead and tin removal from antimony metal by refining ...

As a result, antimony is refined but still contains residual lead of 0.1-0.2%. Moreover, the mixture of phosphorus pentoxide and sodium carbonate [4] was also experimented with antimony refining at 800℃, which resulted in the lead decrease down to 0.015% versus its initial content of 4% in the rough metal.

Recovery of bismuth and antimony metals from pressure ...

In the process of hydrolysis, the precipitation rates of bismuth and antimony are 97.80% and 94.59%, respectively. Under the optimum experimental conditions, the recovery rate of bismuth and ...

Removing antimony from waste lead storage batteries

05-04-2018  In the process of electrolytic refining, the required antimony content of lead anode plate is approximately 0.4–0.7 wt%. When antimony content of lead anode plate is more than 1.2 wt%, antimony firmly adheres to the residual lead anode plate during the refining process, which leads to

Vacuum refining copper melts to remove bismuth,

Arsenic and antimony removal were quite slow: 0.2 to 3 x 10-5 and 0.1 x 10-5 m/s, respectively, and evaporation controlled rates of refining. It is shown that, at typical concentrations of these elements in copper, monatomic evaporation is the predominant evaporation mechanism.

Chemie der Erde - stuff.mit.edu: students' portal

Antimony is a silvery, white, brittle, crystalline solid that exhibits poor conductivity of electricity and heat. It has an atomic numberof51,anatomicweightof122andadensityof6.697kg/m3 at 26 C. Antimony metal, also known as ‘regulus’, melts at 630 C and boils at 1380 C. Antimony and the natural sulfide of antimony

CN104328289A - Method for removal of lead and arsenic

Belonging to the technical field of non-ferrous metal smelting, the invention relates to a method for removal of lead and arsenic in a crude antimony vacuum refining process. The method includes: first of all, adding a metal additive accounting for 1%-5% of the mass of crude antimony to obtain a mixed material, with the metal additive being metal manganese, metal aluminum or a mixture of the ...

Chinese Antimony Under Pressure MiningFeeds

10-09-2012  Chinese Antimony Under Pressure. Sep 10, 2012 Posted by: Mike Luft Antimony mine workers in China. China remains by far the world’s largest producer of primary antimony. It's estimated that China accounted for around 70% of official mine production in 2011, down from around 80% in

Metallurgy - Refining Britannica

This oxidizes zinc, tin, iron, lead, arsenic, antimony, and sulfur; the sulfur goes off as sulfur dioxide gas, while the other impurities form an oxide slag that is skimmed off. Lead is refined in much the same way, with compressed air blown into a molten lead bath and the major impurities of tin, antimony, and arsenic oxidizing in that order, rising to the surface as skims and being scraped off.

How to Remove Arsenic, Antimony Bismuth from Copper

Refining Blister-Copper. The elimination of arsenic, antimony and bismuth in the preceding operations has, unless the materials under treatment are uncommonly impure, left only small amounts of these metals in the blister-copper. Their elimination during the refining operation probably takes place entirely by

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