Lead Refining

Lead is a soft but quite dense low-melting metal that only comes second to gold when talking of the density. Lead is what forms a large constituent of batteries, with the battery industry using up about 75% of lead. It is because of it's density that it is effectively used as a barrier against X-rays and also in sound barriers. Additionally, lead is very durable, no wonder it is usually added to paints and used as roofing material. Because of its high resistant to corrosion caused by water, lead plays a very crucial part in the plumbing industry.

Lead is normally extracted from ore and over 60 minerals have some traces of lead, although only 3 mineral are mostly mined for the production of lead, with galena being the leading mineral, followed closely by cerussite and anglesite. Apart from the ore, very few raw materials are needed for lead refining. The ore concentrating process requires xanthate, lime, alum, and pine oil, while iron or limestone ore is added to the lead ore at a later stage during the roasting process.

Once the ore has been extracted from the mine, it will be treated at a concentrating mill for purposes of separating lead from waste rock. First off, the ore has to be crushed into very tiny pieces, which will then be diluted in water and poured in a tank known as a flotation cell. A tiny percentage of pine oil or a chemical similar to it is added to the slurry (mixture of water and ground ore). The tank is stirred to shake the mixture fiercely as the pine oil attracts impurities such as sulfide particles.

The refining process of lead then goes to filtering stage which gets rid of around 90% of water and then taken to the smelter. Note that the lead concentrate has to be further refined to get rid of sulphur hence is put on a sinter plant, mixed with sand, limestone, and other lead-bearing products and heated on a moving grate. From here it goes to blasting where more refining takes place and once the end product comes from the blasting furnace, the molten lead will be around 95-99% pure lead, which at this juncture is referred to as base bullion.

Further refining has to take place to get pure commercial lead, whereby the base bullion is put in a lead drossing kettle and melted at around 626?F (330?C). Once this process is done, one is left with lead that is 99-99.99% pure.

Leave a Comment

larry said:

Wow. I just read another article that was very similar (maybe too similar), but had a lot more detail. Was this plagerized? Please give credit where it is due.

robin said:

URL, please, larry.

ben said:


khalil said:

request article

Electronic Medical Records said:

This is something that requires a lot of skill that comes from experience and knowledge. It used mostly dangerous processes for which extreme caution on using the machinery and materials is required. So make sure you hire people who are meant to do the job.

essay writers reviews said:

Lead refining process is so interesting to know, i am glad to read this share. I was suppose to do essay writers reviews on lead and this refining post helped me to come up with good knowledge on making process.

summoners war mod apk | clash of clans free gems no download said:

In this particular article, you will see a summary, satisfy browse this post.

Discount Oakley Outlet said:

This Ray Ban sunglasses analysis discusses the affidavit for the acceptance of the brand.

1 mxf converter , mxf to avi said:

Nice to read a awesome web page, with thanks just for having others reply to the software.

get followers boom | cheapest youtube views said:

Its as if you had a great grasp on the subject matter, but you forgot to include your readers. Perhaps you should think about this from more than one angle.

decoraled said:

A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a one.I wanted to leave a little comment to support you and wish you a good continuation. Wishing you the best of luck for all your blogging efforts.

essay writing service online said:

We are interested to prepare some more articles for the essay writing service online review writers. They have better choice to prepare very interesting steps and articles for good education life and thank you so much for sharing these steps.

Roughneck Definition

Roughneck Definition Oil And Gas Employers

There are thousands of oil and gas organizations worldwide engaged in drilling and refining crude oil and natural gas. Most of the world's major employers in the oil and gas producing industry are mentioned below, with a prominence on North American companies. It is advisable to go through the...

read entire definition