User:Jcr9r2/sandbox

== Article Evaluation == Electrowinning

Is everything in the article relevant to the article topic?


 * The information presented is relevant. However, the article makes little effort to distinguish from electrowinning and electrorefining.

Is there anything that distracted you?


 * As stated above, there is a big difference between between electrowinning and electrorefining. The article states that the products from both processes are called “electrowon.” This is not true as electrorefined metal is just called refined or electrorefined.
 * The process talks about oxide ores then moves on. It then talks about sulfide ores later. Both ores share similar processes and would make more sense to be talked about together.

Is any information out of date?


 * No information is out of date.

Is anything missing that could be added?


 * History of metals other than copper.
 * Acid is also generated at the anode, not just oxygen.

What else could be improved?


 * Adding additional information on different metals.
 * Showing the difference between electrowinning and electrorefining.
 * Have pictures of electrowinning.

Is the article neutral?


 * Yes the article is neutral.

Are there any claims that appear heavily biased toward a particular position?


 * No, no bias is shown.

Are there viewpoints that are overrepresented, or underrepresented?


 * Nothing is over represented or under represented.

Check a few citations. Do the links work?


 * The citations do work.

Does the source support the claims in the article?


 * Yes the sources support the article.

Is each fact referenced with an appropriate, reliable reference?


 * All facts are appropriate and reliable.

How is the article rated? Is it a part of any WikiProjects?

It is a start page.

Jcr9r2 (talk) 16:54, 22 February 2019 (UTC)

Selected Article and References
Carl Josef Bayer

Why did I choose this article?

Why I chose this article is because, as a material scientist, the Bayer Process is one of the most important discoveries in the materials world and its creator has basically no information available on Wikipedia.

What’s missing?

Information about his early life, what he did after inventing the Bayer Process, other contributions to science, his person life, and even a picture of him are missing from the page.

What I would like to add?

I would like to find as much information as possible about the topics listed above. Most importantly would be to add a picture as there are many available.

Sources?

BAYER'S PROCESS FOR ALUMINA PRODUCTION: A HISTORICAL PERSPECTIVE (article)

Karl Josef Bayer and his time part 1-2 (article)

Jcr9r2 (talk) 16:50, 1 March 2019 (UTC)

Edits to Karl Josef Bayer
Original:

Carl Josef Bayer (also Karl Bayer, March 4, 1847 – October 4, 1904) was an Austrian chemist who invented the Bayer process of extracting alumina from bauxite, essential to this day to the economical production of aluminium.

Bayer had been working in Saint Petersburg to develop a method to provide alumina to the textile industry that used it as a fixing agent in the dyeing of cotton. In 1887, he discovered that aluminium hydroxide precipitated from an alkaline solution which is crystalline and can be filtered and washed more easily than that precipitated from an acid medium by neutralization. In 1888, Bayer developed and patented his four-stage process of extracting alumina from bauxite ore.

In the mid-19th-century, aluminium was so precious that a bar of the metal was exhibited alongside the French Crown Jewels at the Exposition Universelle in Paris 1855. Along with the Hall-Héroult process, Bayer's solution caused the price of aluminum to drop about 80% in 1890 from what it had been in 1854.

Edits:

Bayer had been working in Saint Petersburg at the Tentelev chemical plant to develop a method to provide alumina to the textile industry that used it as a fixing agent in the dyeing of cotton. In 1887, he discovered that alumina found in bauxite ore can be selectively dissolved when reacted in an autoclave with sodium hydroxide. The formed aluminium hydroxide can be precipitated from the alkaline solution when enoculated with alumina hydrate. This can be filtered and washed more easily to produce crystalline alumina than that precipitated from an acid medium by neutralization.

Peer Review by Swinkleman (talk) 15:43, 22 March 2019 (UTC)
Swinkleman (talk) 15:43, 22 March 2019 (UTC)
 * 1) I like the additions that you made filling in specifics. You could put more of the specifics in a separate section on his discovery and leave the introduction more general
 * 2) There is some info in the article about aluminum. Adding a section about the importance of his discovery would be helpful
 * 3) Adding a section about his childhood would be good just to know how he developed an interest in science.
 * 4) You can also add sections on the time between his graduation and his discovery and what he did after his discovery.

Peer review by Jcr9r2 (talk) 15:21, 22 March 2019 (UTC)
Jcr9r2 (talk) 15:35, 22 March 2019 (UTC)
 * 1) Nice to see additional information added about his family, like the amount of siblings he had.
 * 2) The addition of the struggles he went through as a professor was a good addition.
 * 3) If possible find out what his thesis was and what his research was on in order to add additional information about his professorship.
 * 4) The sentence “This later laid the foundation for his later career.” could be reworded as the two “laters” are distracting, even through you did not make this sentence.
 * 5) Adding additional sections to split up the text might be useful as further information is added.
 * 6) Finding out information on my article’s children/siblings might be a useful addition for me to make, as it adds useful information to your article.