Tag Archives: properties

Oil filtration

During operation, transformer oil accumulate contaminants, which can form various chemicals. These substances reduce the oil’s performance and are, of course, undesirable.

Operation of the transformer becomes unstable. To prevent this, transformer oil is filtered and purified. Some of the methods are discussed in more detail below.

The first stage of transformer oil purification is mechanical. This is a superficial treatment to remove particulate matter and water. The next step is deeper purification performed in vacuum with heating.

The first two stages are, in fact, preliminary. The main process involves various chemicals.

One of the methods is purification of oil with a 98% sulfuric acid solution.

In comparison to other chemical purification methods, the use of sulfuric acid has a significant drawback. Beside reacting with the contaminants, the acid also adversely influecnes the structure of the oil, making it somewhat unstable. Additional processes are required to resolve that problem.

The nature of selective purification is evident from the title. Speical solvents are introduced into the oil to remove specific impurities.

De-waxing is another widely accepted process. In this process, oil is treated with special solvents: acetone, toluene, bensol etc, to remove solid contaminants.

It should be noted that chemical methods influence oil’s stability, but extend the oil’s service life at the same time.

It should also be remembered that any purification process should end with finishing purification, closing the cycle of oil processing and filtration. This is usually done by contact method.

This means that the oil is mixed with special materials, usually clay or bleaching earth. The materials are then mixed and heated. Heating facilitates acviation of all sorbents in the clay.

These absorbents capture contaminants. Deep filtration separates oil from the clay. When selecting adsorbent, it is necessary to pay attention to the content of moisture. It should be suffucient to make production efficient and to make processed oil compliant with specifications.

The most interesting technology today involves the use of bleaching clays (Fuller’s earth). Globecore manufactures a range of CMM type units for filtration of various oils with the use of Fuller’s earth. The advantages of the design are the ability of multiple reactivation of the sorbent, mobility, simplicity of operation and high quality of the output product.

Downtime is significantly reduced by the ability to reactivate the sorbent without the need for frequent replacement, thus increasing process efficiency.

Fuller’s Earth From Clay; A Type of Ceramic Art

Clay; More than Just Art!

It has been a long time since man began to use clay for folk art and the creation of art objects.  All possible images that were originated in the minds of ancient people and continue to appear in modern enlightened minds, can be turned into reality and get their shape with the help of waxy clay.  But, imagination and centuries of experience teaches us to have a broader outlook of the world.  It is safe to say therefore, Clay is not just for art anymore!

At one time, clay was a material generally used only for crockery, amphorae and sculptures.  Today however, clay is quite widely used in cosmetology, medicine, household chemicals, industry and a whole host of other uses.

It is no longer a secret that the chemical composition of different elements, that originated from the Earth’s interior, has had different affects on their characteristics and abilities.  As for clay, its “recipe” is also quite different.  Thus, there are many different ways that clay can be used in our modern world.

Clay and Industrial Uses

Industrial enterprises in various fields are the main consumers of all inventions and innovations connected with chemical and technological transformations.  Clay has many components and one of them is known as “Fuller’s Earth.”  In the scientific community, it is known as an “adsorbent.”  This earthy material mainly consists of a clay mineral that is considered not too waxy.  Fuller’s Earth therefore, is used as an adsorbent material that filters and purifies by attracting and holding contaminates on its outer molecular structure.

The Fuller’s Earth adsorbent material got its name from the original application in which it was used for the removal of oil from textile materials.  Later, Fuller’s Earth became very popular for the filtration of vegetable and mineral oils.  Its versatility and flexibility gave the the Fuller’s Earth adsorbent material many advantages in the oil purification industry.

“Oil Regeneration” machines, that utilize the Fuller’s Earth adsorbent materials, have become the most efficient and cost effective machines for the recovery of waste industrial oils available in the industry today.

One “Fuller’s Earth” regeneration cycle fully restores the oil back to its original characteristics.  After the Fuller’s Earth has regenerated and restored the used oil back to like new condition, it can then be reactivated and ready to purify oil again and again.  Thus, these machines definitely can be classified as modern industrial “works of art.”  So, clay continues to serve man in both form and now function.

GlobeCore now offers Oil Regeneration equipment featuring the clay based Fuller’s Earth Adsorbent material that is the best and most cost effective oil purification method in the industry today.  The GlobeCore Process not only purifies and regenerates oil and hydraulic fluids utilizing Fuller’s Earth, it reuses the adsorbent materials based upon an automatic adsorbent reactivation system built in to the regeneration equipment.  The GlobeCore machines can continuously purify oil without having to change and dispose of the adsorbent materials.  This industry leading breakthrough makes the process of regenerating oil products clean, efficient, and most of all, very cost effective.  The Environment Loves the GlobeCore Process and you will too!  GlobeCore, using Clay for a cleaner environment.

Its time to get with the Process.  The GlobeCore Process!