Limult Tantalite Mining and Processing Factory in Nigeria
Tantalum is in grey colour, heavy and very hard metal with a melting point of over 3000 degrees Celsius. It is classified as a "refractory" metal, which means it can sustain high temperatures and resist corrosion. It is a good conductor of heat and electricity, which makes it useful in various electronics. Pure tantalum can be drawn into fine wire filament, which is used to evaporate other metals.
Tantalum is found in hard rock deposits such as granites, carbonites and pegmatites (igneous rock that consists of coarse granite). It is not an abundant metal, and mining it is difficult. There are only a handful of countries that mine it. The demand for tantalum has increased over the past 20 years, especially in the computer and electrical sectors. Sites are being identified for future development, and existing sites are being evaluated for expansion.
How Tantalum is Mined
Tantalum comes from the processing and refining of tantalite. Tantalite is the common name for any mineral ore containing tantalum. Most tantalum mines are open pit; some are underground. The process of mining tantalum involves blasting, crushing and transporting the resulting ore to begin the process of freeing the tantalum. The ore is then concentrated at or near the mine site, to increase the percentage (by weight) of tantalum oxide and niobium. The material is concentrated through wet gravity techniques, gravity, electrostatic and electromagnetic processes.
How Tantalum is Processed
The tantalum concentrate is transported to the processor for chemical processing. The concentrate is then treated with a mixture of hydrofluoric and sulphuric acids at high temperatures. This causes the tantalum and niobium to dissolve as fluorides. Numerous impurities are also dissolved.
Other ores, such as silicon, iron, manganese, titanium, zirconium, uranium and thorium, are generally present and processed for other uses. The concentrate is broken down into a slurry. The slurry is filtered and further processed by solvent extraction. Using methyl isobutyl ketone (MIBK), or liquid ion exchange using an amine extractant in keroses, produces highly purified solutions of tantalum and niobium. Finally, this tantalum oxide is reduced with molten sodium to produce tantalum metal.
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Limult Talc Mining and Processing Factory in Nigeria
Talc is a vital part of everyday life. It is the world's softest mineral. Although all talc ores are soft, platy, water repellent and chemically inert, no two talc are quite the same.
Talc can be crushed into a white powder that is widely known as "talcum powder." This powder has the ability to absorb moisture, absorb oils, absorb odor, serve as a lubricant, and produce an astringent effect with human skin. These properties have made talcum powder an important ingredient in many baby powders, foot powders, first aid powders, and a variety of cosmetics.
A form of talc known as "soapstone" is also widely known. This soft rock is easily carved and has been used to make ornamental and practical objects for thousands of years. It has been used to make sculptures, bowls, countertops, sinks, hearths, pipe bowls, and many other objects.
Although talcum powder and soapstone are two of the more visible uses of talc, they account for a very small fraction of talc consumption. Its hidden uses are far more common. Talc's unique properties make it an important ingredient for making ceramics, paint, paper, roofing materials, plastics, rubber, insecticides, and many other products.
Talc is usually green, white, gray, brown, or colorless. It is a translucent mineral with a pearly luster. It is the softest known mineral and is assigned a hardness of 1 on the Mohs Hardness scale.
Talc is a monoclinic mineral with a sheet structure similar to the micas. Talc has perfect cleavage that follows planes between the weakly bonded sheets. These sheets are held together only by van der Waals bonds, which allows them to slip past one another easily. This characteristic is responsible for talc's extreme softness, its greasy, soapy feel, and its value as a high-temperature lubricant.
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Limult Phosphate Mining and Processing Factory in Nigeria
Phosphorus is not one of the most common elements in Earth's crust and mantle, yet it essential for all life, plant and animal. Phosphorus makes up our bones and teeth, and importantly, phosphorus comprises DNA.
Even though plants require more nitrogen and oxygen than they do phosphorus, phosphorus is often the limiting nutrient; the amount of available phosphorus determines the amount of plant growth and development. Where phosphorus is plentiful, plants thrive, and vice versa. However, plants cannot absorb limitless amounts of phosphorus. Phosphorus not used by plants remains in the soil or runs off in streams and groundwater.
In a given area of land, plants grow and remove phosphorus from the soil. But then those plants die, and the phosphorus is their tissues is recycled back into the soil. When land is farmed, plants absorb the phosphorus, but then the plants are removed to be eaten. Because this reduces the amount of soil phosphorus available, humans started adding phosphorus fertilizer to soils.
Some of the fertilizer was organic, from ground up bones or mined guano (bat dung). But humans then started mining phosphorus from both igneous and sedimentary (but mostly sedimentary) rock. The use of inorganic phosphate fertilizer (aka chemical fertilizer) greatly altered the phosphorus cycle.
Phosphorus in rock is pretty insoluble and thus not directly available to plants. In nature, rock phosphate can become soluble (and available to plants) either by chemical weathering or through the actions of certain types of plants. The solubility also depends on rock type and the pH of the soil; phosphorus is most soluble when contained in sedimentary rocks as opposed to igneous rock, and when soil pH is between 5.5 and 7.2.
Therefore, spreading phosphate rock on fields had little effect on plant growth. However, in the mid-1800s, chemists discovered that mixing sulfuric acid with phosphate rock would make a soluble fine powder called superphosphate; this discovery turned phosphate rock into the valuable fertilizer it is today. A caveat, however, is that once fertilizer is applied to the soil, the phosphorus not absorbed by plants can adhere to soil or clay particles, and become an insoluble solid once again.
LIMULT is a leading specialty chemicals company. The core business of LIMULT in the chemical Industry is the development, manufacturing and marketing of chemical intermediates.
Contact us at
+2347052446249 for more information on our redefining industry development
services or visit our store at www.limult.com/shop to see more products
that we make available for the people.
Public Park Construction Project in Nigeria by Limult
Parks are critical to a community’s spirit. Without public parks, there’d be little social interaction, with no play space for kids and no enjoyable outdoor resting space for adults. From splash parks to dog parks to playgrounds, these public green spaces are recreational areas that serve the needs of community members.
Building a park always starts with identifying the location. If you’ve got a park location in mind, or are looking at several potential locations, consider these fundamental factors:
- Accessibility: Is the location wheelchair accessible, and can it be easily reached by public transport, car or bike? The easier it is to get to the park, the more use it will get. It’s important to build inclusive playgrounds to make everyone feel welcome.
- Character: Is there a historic location or special area that could attract park-goers for more than just nature? Use your community’s unique characteristics and history to drive park traffic and strengthen community ties.
- Safety: Is the area you’re considering located somewhere that’s considered safe, with a low crime rate?
Many of today’s new parks are developed on lands designated by planning committees. The space could either be unused, and open for development, or it could be an area that is already associated with public property such as school grounds. Likewise, it could even be private property turned public by estate grants or service organization purchases.
Regardless, all parks must have public access if they’re going to serve the community’s highest and best needs.
Contact us today at +2347052446249 to request more information on playground equipment for your next park or visit our store at www.limult.com/shop to see more products that we make available for the people.
Construction of a Community Borehole Project in Nigeria by Limult
Borehole construction and drilling techniques are reviewed
focusing on the appropriateness of different methods for various aquifer
characterization scenarios. The drilling method and well construction selected
for an aquifer characterization program should be based on consideration of the
type of testing to be performed, borehole conditions required for testing,
formation conditions (borehole stability), formation sample requirements, well
depth, water quality, planned use of the well after the completion of the
program, local driller capabilities and expertise, drilling fluid disposal,
local regulations, and cost.
A key factor dictating
drilling and formation sampling methods is whether or not a borehole is stable
(i.e., penetrated strata are nitrified or sufficiently cohesive). Wells should
be designed, constructed, and developed to maximize well efficiency,
particularly if they are to be used as production wells or for single-well
hydraulic testing (e.g., slug testing).
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+2347052446249 for more information on our redefining industry development
services or visit our store at www.limult.com/shop to see more products
that we make available for the people.
Construction of District Hospital project in Nigeria by Limult
Hospital construction projects pose extremely complex managerial problems. Recent government reports have been scathing in their criticisms of the unacceptable delays and cost increases in the delivery of new hospitals. The problems that hospital project managers face are particularly acute during the early stages of the project when the detailed user requirements are being established.
Many of the problems that develop later in the project can be traced back to a lack of attention given to the early stages of the project. It is in these early stages that the project manager has to reconcile the many disparate and often conflicting demands made by the multitude of user groups, funding bodies, government departments, estates maintenance departments and project consultants.
Hospital development characteristics
One of the most striking characteristics that distinguish hospital projects from other project types is the time scale over which they occur and the large costs involved. It is common for total costs to run to many tens of millions of naira and for total project time scales to reach ten to fifteen years.
When these types of time scales are compared against the average human life of seventy years their significance becomes apparent. Technologically, hospitals are also likely to be highly complex requiring the integration of diverse and intricate building services.
Functionally they are equally complex, having to satisfy the disparate demands of the general public and the highly trained staff that operate the facility. The functional performance requirements are such that the quality of construction has to be exceptionally high.
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