UNIT OPERATIONS IV: MASS TRANSFER

We learned that heat is transferred if there is a temperature difference in a medium. Similarly, if there is a difference in the concentration of any chemical species in a mixture, mass transfer must occur. Mass transfer is mass in transit as a result of a difference in concentrations of a species in a mixture.[…]

UNIT OPERATIONS II: MECHANICAL OPERATIONS

In chemical engineering and its related fields, a unit operation is a basic step in a process. For this reason they can be classified in different ways. The first category assigned to UOs is mechanical operations. What they are, what their roles are, and what contexts they fall into, you will know in this episode.[…]

UNIT OPERATIONS III: HEAT TRANSFER

Heat transfer (or heat) is energy in transit due to a temperature difference. Whenever a temperature difference exists in a medium or between media, heat transfer will occur. This is the case in the unitary operations of this classification in the industries as a whole. Shall we delve into them? The study of unitary operations[…]

UNIT OPERATIONS I: INTRODUCTION TO UNIT OPERATIONS

In an industry, starting from the raw material until reaching the final product, a series of processes must occur, some of them chemical and others of a physical nature. Thus each of the sequential steps in an industrial production line is known as a “unit operation”. In this episode, we will learn a little more[…]

COSMETICS IV: THE TECHNOLOGY OF COSMETICS

Technological cosmetics, with unique and tailor-made formulas, have become the main focus in the industries of this branch. The pursuit of beauty and youth generates ever greater demands! Therefore, it is necessary for industries to invest in means to please their customers. And in this, technology has been helping in this process, bringing very positive[…]

COSMETICS II: CLASSIFICATIONS AND APPLICATIONS OF COSMETICS

Today cosmetics are seen as an essential product. Our daily life is full of toiletries and beauty. And beauty care is not an exact science, but if the correct sequence of cosmetic application is followed closely, there can be great chances of maximizing the effect of the products. For this you need to understand how[…]

COSMETICS III: RAW MATERIALS AND COSMETIC PRODUCTION PROCESS

The desire to look more beautiful, disguise the age or the simple concern for health and well-being moves thousands of cosmetic products every day. But do you know what they are made of and how they are produced? In this text we will talk about the raw materials and processes used in the manufacture of[…]

BEER V: TYPES OF BEER

In the brewing process there are important steps, but what stands out most is the choice of the type of fermentation through which the beverage passes. Starting from this assumption, from the fermentation it is possible to obtain different types of beers. Currently, they are divided into three large families and family is very important,[…]

SCIENCE OF MATERIALS III: THE ADHESIVES

Now that we have seen how the chemistry of the material can interfere with its properties and we have already talked about glass and non-stick materials, we will see the other side. When you need to attach two surfaces together, what do you use: glue or tape? How do you base your choice of which[…]

SCIENCE OF MATERIALS II: ANTI-ADHERENT MATERIALS

Now that we have seen how the chemistry of the material can interfere with its properties and we talk about the glass, let’s talk about so-called nonstick materials, that is, those that prevent the egg you make in the morning in the frying pan do not stick on it. Non-stick materials are characterized by low[…]

SCIENCE OF MATERIALS I: THE GLASS

The way molecules organize themselves structurally into a material determine many of the characteristics and properties of a material, including features such as transparency and mechanical properties. This is a very lengthy subject and one that can also be complex. Therefore, in this series of texts we will talk about some examples of our daily[…]