Desta vez é sobre minerais, metais, ferrosos, não ferrosos, terras raras, etc.
O Brasil, como outras grandes unidades territoriais – Canadá, Estados Unidos, Rússia, Austrália, China, Congo, países andinos, etc. – possui imensas quantidades de todos os tipos de minérios, e é um dos grandes exportadores.
Vamos ver o que resultou disso.
Paulo Roberto de Almeida
All the World’s Metals and Minerals in One Visualization
We live in a material world, in that we rely on materials to make our lives better. Without even realizing it, humans consume enormous amounts of metals and minerals with every convenient food package, impressive building, and technological innovation.
Every year, the United States Geological Service (USGS) publishes commodity summaries outlining global mining statistics for over 90 individual minerals and materials. Today’s infographic visualizes the data to reveal the dramatic scale of 2019 non-fuel mineral production.
Read all the way to the bottom; the data will surprise you.
Non-Fuel Minerals: USGS Methodology
A wide variety of minerals can be classified as “non-fuel”, including precious metals, base metals, industrial minerals, and materials used for construction.
Non-fuel minerals are those not used for fuel, such as oil, natural gas and coal. Once non-fuel minerals are used up, there is no replacing them. However, many can be recycled continuously.
The USGS tracked both refinery and mine production of these various minerals. This means that some minerals are the essential ingredients for others on the list. For example, iron ore is critical for steel production, and bauxite ore gets refined into aluminum.
Top 10 Minerals and Metals by Production
Sand and gravel are at the top of the list of non-fuel mineral production.
As these materials are the basic components for the manufacturing of concrete, roads, and buildings, it’s not surprising they take the lead.
| Rank | Metal/Mineral | 2019 Production (millions of metric tons) |
|---|---|---|
| #1 | Sand and Gravel | 50,000 |
| #2 | Cement | 4,100 |
| #3 | Iron and Steel | 3,200 |
| #4 | Iron Ore | 2,500 |
| #5 | Bauxite | 500 |
| #6 | Lime | 430 |
| #7 | Salt | 293 |
| #8 | Phosphate Rock | 240 |
| #9 | Nitrogen | 150 |
| #10 | Gypsum | 140 |
These materials fertilize the food we eat, and they also form the structures we live in and the roads we drive on. They are the bones of the global economy.
Let’s dive into some more specific categories covered on the infographic.
Base Metals
While cement, sand, and gravel may be the bones of global infrastructure, base metals are its lifeblood. Their consumption is an important indicator of the overall health of an economy.
Base metals are non-ferrous, meaning they contain no iron. They are often more abundant in nature and sometimes easier to mine, so their prices are generally lower than precious metals.
| Rank | Base Metal | 2019 Production (millions of metric tons) |
|---|---|---|
| #1 | Aluminum | 64.0 |
| #2 | Copper | 20.0 |
| #3 | Zinc | 13.0 |
| #4 | Lead | 4.5 |
| #5 | Nickel | 2.7 |
| #6 | Tin | 0.3 |
Base metals are also the critical materials that will help to deliver a green and renewable future. The electrification of everything will require vast amounts of base metals to make everything from batteries to solar cells work.
Precious Metals
Gold and precious metals grab the headlines because of their rarity — and their production shows just how rare they are.
| Rank | Precious Metal | 2019 Production (metric tons) |
|---|---|---|
| #1 | Silver | 27,000 |
| #2 | Gold | 3,300 |
| #3 | Palladium | 210 |
| #4 | Platinum | 180 |
While metals form the structure and veins of the global economy, ultimately it is humans and animals that make the flesh of the world, driving consumption patterns.
A Material World: A Perspective on Scale
The global economy’s appetite for materials has quadrupled since 1970, faster than the population, which only doubled. On average, each human uses more than 13 metric tons of materials per year.
In 2017, it’s estimated that humans consumed 100.6B metric tons of material in total. Half of the total comprises sand, clay, gravel, and cement used for building, along with the other minerals mined to produce fertilizer. Coal, oil, and gas make up 15% of the total, while metal makes up 10%. The final quarter are plants and trees used for food and fuel.
Base Metals
Prove Your Metal: Top 10 Strongest Metals on Earth
There are 91 elements that are defined as metals but not all are the same. Here is a breakdown of the top 10 strongest metals and their applications.
Published
4 months ago
on
October 22, 2019
Prove Your Metal: Top 10 Strongest Metals on Earth
The use of metals and the advancement of human civilization have gone hand in hand — and throughout the ages, each metal has proved its worth based on its properties and applications.
Today’s visualization from Viking Steel Structures outlines the 10 strongest metals on Earth and their applications.
What are Metals?
Metals are solid materials that are typically hard, shiny, malleable, and ductile, with good electrical and thermal conductivity. But not all metal is equal, which makes their uses as varied as their individual properties and benefits.
The periodic table below presents a simple view of the relationship between metals, nonmetals, and metalloids, which you can easily identify by color.
While 91 of the 118 elements of the periodic table are considered to be metals, only a few of them stand out as the strongest.
What Makes a Metal Strong?
The strength of a metal depends on four properties:
- Tensile Strength: How well a metal resists being pulled apart
- Compressive Strength: How well a material resists being squashed together
- Yield Strength: How well a rod or beam of a particular metal resists bending and permanent damage
- Impact Strength: The ability to resist shattering upon impact with another object or surface
Here are the top 10 metals based on these properties.
The Top 10 Strongest Metals
| Rank | Type of Metal | Example Use | Atomic Weight | Melting Point |
|---|---|---|---|---|
| #1 | Tungsten | Making bullets and missiles | 183.84 u | 3422°C / 6192 °F |
| #2 | Steel | Construction of railroads, roads, other infrastructure and appliances | n/a | 1371°C / 2500°F |
| #3 | Chromium | Manufacturing stainless steel | 51.96 u | 1907°C / 3465°F, |
| #4 | Titanium | In the aerospace Industry, as a lightweight material with strength | 47.87 u | 1668°C / 3032°F |
| #5 | Iron | Used to make bridges, electricity, pylons, bicycle chains, cutting tools and rifle barrels | 55.85 u | 1536°C / 2800°F |
| #6 | Vanadium | 80% of vanadium is alloyed with iron to make steel shock and corrosion resistance | 50.942 u | 1910°C / 3470°F |
| #7 | Lutetium | Used as catalysts in petroleum production. | 174.96 u | 1663 °C / 3025°F |
| #8 | Zirconium | Used in nuclear power stations. | 91.22 u | 1850°C / 3.362°F |
| #9 | Osmium | Added to platinum or indium to make them harder. | 190.2 u | 3000°C / 5,400°F |
| #10 | Tantalum | Used as an alloy due to its high melting point and anti-corrosion. | 180.94 u | 3,017°C / 5462°F |
Out of the Forge and into Tech: Metals for the Future
While these metals help to forge the modern world, there is a new class of metals that are set to create a new future.
Rare Earth elements (REEs) are a group of metals do not rely on their strength, but instead their importance in applications in new technologies, including those used for green energy.
| Metal | Uses |
|---|---|
| Neodymium | Magnets containing neodymium are used in green technologies such as the manufacture of wind turbines and hybrid cars. |
| Lanthanum | Used in catalytic converters in cars, enabling them to run at high temperatures |
| Cerium | This element is used in camera and telescope lenses. |
| Praseodymium | Used to create strong metals for use in aircraft engines. |
| Gadolinium | Used in X-ray and MRI scanning systems, and also in television screens. |
| Yttrium, terbium, europium | Making televisions and computer screens and other devices that have visual displays. |
If the world is going to move towards a more sustainable and efficient future, metals—both tough and smart—are going to be critical. Each one will serve a particular purpose to build the infrastructure and technology for the next generation.
Our ability to deploy technology with the right materials will test the world’s mettle to meet the challenges of tomorrow—so choose wisely.
Base Metals
20 Common Metal Alloys and What They’re Made Of
You can’t find stainless steel, brass, sterling silver, or white gold on the periodic table. Learn about 20 common metal alloys, and what they are made from.
Published
12 months ago
on
March 8, 2019
Every day, you’re likely to encounter metals that cannot be found anywhere on the periodic table.
You may play a brass instrument while wearing a white gold necklace – or maybe you cook with a cast iron skillet and store your leftovers in a stainless steel refrigerator.
It’s likely that you know these common metal alloys by name, and you can probably even imagine what they look and feel like. But do you know what base metals these alloys are made of, exactly?
Common Metal Alloys
Today’s infographic comes to us from Alan’s Factory Outlet, and it breaks down metal and non-metal components that go into popular metal alloys.
In total, 20 alloys are highlighted, and they range from household names (i.e. bronze, sterling silver) to lesser-known metals that are crucial for industrial purposes (i.e. solder, gunmetal, magnox).
Humans make metal alloys for various reasons.
Some alloys have long-standing historical significance. For example, electrum is a naturally-occurring alloy of gold and silver (with trace amounts of copper) that was used to make the very first metal coins in ancient history.
However, most of the common metal alloys on the above list are actually human inventions that are used to achieve practical purposes. Some were innovated by brilliant metallurgists, while others were discovered by fluke, but they’ve all had an ongoing impact on our species over time.
Alloys with an Impact
The Bronze Age (3,000 BC – 1,200 BC) is an important historical period that is rightfully named after one game-changing development: the ability to use bronze. This alloy, made from copper and tin, was extremely useful to our ancestors because it is much stronger and harder than its component metals.
Steel is another great example of an alloy that has changed the world. It is one of the most important and widely-used metals today. Without steel, modern civilization (skyscrapers, bridges, etc.) simply wouldn’t be possible.
While nobody knows exactly who invented steel, the alloy has a widely-known cousin that was likely invented in somewhat accidental circumstances.
In 1912, English metallurgist Harry Brearley had been tasked with finding a more erosion-resistant steel for a small arms manufacturer, trying many variations of alloys with none seeming to be suitable. However, in his scrap metal heap – where almost all of the metals he tried were rusting – there was one gun barrel that remained astonishingly untouched.
The metal alloy – now known to the world as stainless steel – was a step forward in creating a corrosion-resistant steel that is now used in many applications ranging from medical uses to heavy industry.
