تلك ستون
Afghanistan is considered one of the major Talc extracting countries, which exports about one million tons of Talc to American, European and Asian countries every year. Sixty million dollars have been invested in the Talc sector of Afghanistan and 20,000 people have been provided with employment in 47 factories and tens of mines. Talc is used in 180 items, the most important of which is used in medicine, paint, paper and cosmetics. We are currently producing high-quality Talc Stone / Powder and have the best Talc samples available to industries. Our Talc is the whitest available without the use of asbestos. Yaqubi Limited Company is a significant company that exports minerals from Afghanistan. The company's main exports are talc lumps and powder from the Pakistan-Afghanistan border region. This talc is of the highest quality and is in high demand around the world. It is widely used in a wide range of industries, including ceramics, paper, paint, cosmetics, and pharmaceuticals. We provide a variety of whiteness ratings that are ideal for industrial customers. We offer a wide range of soapstone grades.
Our client's satisfaction will be a gift to us. Yaqubi Limited Company believes that everyone should be able to obtain and enjoy the best products available. We were able to meet today's key business objectives, which included quality, honesty in business dealings, transportation, prompt and secure delivery, and, ultimately, customer satisfaction.
ما هو التلك؟
مصطلح "التلك" له أربعة معانٍ مميزة:
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التلك معدن يتكون من مادة رطبةسيليكات الجنسيوم.
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التلك هو حجر صابوني أو حجر صابوني يتكون من نسب متفاوتة من التلك المعدني ، والذي غالبًا ما يتم دمجه مع معادن أخرى مثل الكلوريت أو كربونات.
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التلك مادة خام صناعية مسحوقية تستخدم في مجموعة متنوعة من التطبيقات.
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التلك هو نوع من أنواع البودرة التجميلية. هذا هو أكثر تطبيقاتها شهرة ، ولكنه أيضًا أحد أقل التطبيقات استهلاكًا.
الجيولوجيا وحدوثها
Talc deposits are always the result of hydrothermal activity transforming existing rocks. Hydrothermal water transports the components (MgO, SiO2, H2O) required for the transformation of the parent rock into talc. The size and geometry of the final deposit are determined by the parent rock's size and nature, as well as the intensity and scale of the phenomenon. A low to medium temperature and pressure metamorphism is the geological context required for such a transformation to occur. Tectonic movements are always important: earth movements allow hydrothermal fluid to penetrate the mother-rock, creating permeability that allows reactions within the rock mass to occur. The surrounding pressure determines the mineral's degree of platins, also known as lamellarity (low pressure/low lamellarity, high pressure/high lamellarity) either at the time of transformation or later on. The nature of the parent rock largely determines the type of mineralization. Talc deposits are classified based on the parent rock from which they are formed. Talc deposits are classified into four types: • Made from magnesium carbonates. This type of deposit, found in ancient metamorphosed carbonate sequences, accounts for more than half of global production. This talc is predominantly pure and white. • Originating from serpentines. This type of deposit accounts for approximately 20% of the world's talc supply. The crude ore is always grey here, but it can be upgraded (usually through flotation techniques) to improve mineralogy and whiteness. • Originating from alumina-silicate rocks These deposits account for about 10% of global output. They are sometimes found in conjunction with deposits of magnesium carbonate. Because of the presence of chlorite (another phyllosilicate), the crude ore is generally grey, but no upgrading is usually required because chlorite, like talc, is a functional mineral with benefits in a variety of industrial applications. Derived from sedimentary magnesium deposits. Talc is created through the direct transformation of magnesium clays. There are currently no deposits in this category that are being mined. • This wide range of origins and types naturally results in a wide range of ores and product grades, which differ in terms of mineralogical composition, color, and crystalline structure (micro-crystalline or lamellar).
الخصائص الفيزيائية والكيميائية
Talc is a natural mineral with the molecular formula Mg3Si4 O10(OH)2 (molecular weight 379.26). Its elementary sheet is made up of a layer of magnesium-oxygen/hydroxyl octahedra sandwiched between two layers of tetrahedral silica, as shown in the opposite figure. The main surfaces of the elementary sheet, known as basal surfaces, lack hydroxyl groups and active ions, making talc both hydrophobic and inert. Depending on the deposit's formation conditions, the size of an individual talc platelet (a few thousand elementary sheets) can range from about 1 micron to more than 100 microns. The lamellarity of talc is determined by the size of individual platelets. Individual platelets in highly lamellar talc are large, whereas those in microcrystalline talc are small. Because the binding forces (known as Van de Waal's forces) linking one elementary sheet to its neighbors are very weak, the platelets slide apart at the slightest touch, giving talc its characteristic softness. Talc has no odor. It is not soluble in water, weak acids, or alkalis. Although talc has a strong affinity for certain organic chemicals, it has very little chemical reactivity in general. It has no explosive or flammable properties. Above 900°C, talc gradually loses its hydroxyl groups, and above 1050°C, it re-crystallizes into various enstatite forms (anhydrous magnesium silicate). The melting point of talc is 1500°C. Talc vary in their mineralogical composition, or the type and proportion of associated minerals present. Chlorite, which is structurally and chemically very similar to talc, is the most common mineral found with it. Dolomite and magnesite are also common. Talc differ in their degree of lamellarity, as we've seen. Talc is commonly thought to be white, but it can also be grey, green, blue, pink, or even black. Talc is essentially a collection of talc.
الخصائص العضوية
Talc is attracted to certain organic chemicals. As a result, it is organophilic. The position of the oxygen atoms on the surface of the talc platelet corresponds to the carbon bonds on the surface of the polypropylene crystal, which is a likely explanation for talc's affinity for polypropylene. Talc's organophilic properties are useful in a variety of applications, such as assisting polypropylene crystallization. Talc particles attract undesirable resin droplets, i.e. organic chemicals, in the pulp onto their surface during papermaking. This is referred to as pitch control. In body powder applications, perfume, which is also organic, is adsorbed and retained on the talc surface. Functions and Application Talc's five main properties distinguish it as a unique substance for industrial and domestic applications are as follows: Lamella ion (composed of platelets that slide off each other) suppleness (unctuous and non-abrasive) Chemical apathy Preference for organic chemicals Whiteness Talc is used as an anti-sticking, anti-caking, lubricant, carrier, thickener, strengthening filler, smooth filler, and adsorbent.
عامل مضاد للالتصاق
Talc is used in many industrial processes to keep two materials from sticking together. Mold talc powdering is widely used, for example, in tyre manufacturing and foundry applications. Talc is also used to enhance the performance of certain foods and conveyor belts. Similarly, chip boards are powdered to prevent them from sticking together while being stored.
عامل مضاد للتكتل
Talc is commonly used in animal feed. It wraps around each feed particle, creating a natural barrier that prevents moisture from escaping or entering the treated feed. Talc also increases material fluidity, which helps to keep equipment clean (by reducing bacteria proliferation), lowers energy consumption, reduces production stoppages, and makes the operator's job safer.
المزلق
التلك ، على سبيل المثال ، يستخدم كمواد تشحيم في المستحضرات الصيدلانية. بالإضافة إلى عدم تفاعله مع المكونات النشطة ، فإنه يسهل تناول الأدوية الصلبة (حبوب ، مساحيق ، إلخ) (حبوب ، مساحيق ، إلخ). يستخدم التلك أيضًا في تشكيل وتدمير الحبوب. يستخدم على نطاق واسع كمواد تشحيم في نقل المواد الجافة.
الناقل
Talc's chemical inertness is obviously appealing for carrier applications. Excipients (dry or moist) in pharmaceuticals and cosmetics are classic examples. Aside from its inertness, talc has the advantage of not promoting bacterial growth and of gradually releasing fragrances. Carriers are also important in applications like fertilizer and plant protection. When talc is added to active ingredients, the release is well-managed, allowing for the practical and safe handling of very small and very large amounts of active substances.
مثخن
Talc can affect the viscosity of water and solvent-based formulations. It increases covering power, improves flow, and prevents settling in paints, for example. It also improves the coating's adhesion and final mechanical properties. Talc allows paints with low viscosities to be formulated with significantly fewer organic solvents. Talc's use in the formulation of a variety of liquid products (paint, cosmetics, glues, and so on) also helps to control sedimentation rates during storage.
مقوي
Talc is used to reinforce various resins, most notably polypropylene (PP). Even though the talc used in these applications is finely ground, it retains its lamellar structure. This gives the PP the best trade-off between rigidity and impact strength. Domestic appliances, food packaging films, and, most notably, automotive components such as bumpers and dashboards are among the applications. Talc is also used in rubber as a semi-reinforcing filler. Ceramics benefit from the properties of talc (household, construction, refractory and technical). It shortens the firing time and temperature, improves vitrification, and thus the ceramic's resistance. It also increases thermal shock resistance, which is especially important in catalytic exhausts.
حشو ناعم
يتم تقدير نعومة التلك في المنتجات التي تتطلب ليونة ونعومة. تعتبر أقلام التلوين مثالاً ممتازًا لأنها يجب أن تكون صلبة وناعمة للحصول على نتيجة سلسة ومتسقة. يعتبر التلك أيضًا مكونًا رئيسيًا للمعاجين ، وخاصة معاجين البوليستر ، حيث يحسن الالتصاق والقدرة على التحمل.
الممتزات
Talc's adsorption properties, or ability to adsorb only on the surface, are important in a variety of applications, particularly pitch control in papermaking, where talc is used to absorb sticky organic impurities (pitch, unwanted anions). Talc also improves the runnability of printing. As a paper filler, it improves smoothness and machinability while decreasing friction, abrasion, and porosity. It improves ink transfer, finish feel, and printing legibility in paper coating. Talc’s adsorption properties are also valuable in the treatment of waste water by the activated sludge method. Talc platelets, by providing an adequate support surface, actually "ballast" the bacteria used in such treatments, improving sedimentation and avoiding bacteria release in the final clean effluent.
الصحة والسلامة & نبسب؛
Health and Safety of Talc Talc is used in the production of a wide variety of products. Talc, best known as a body powder, is an important ingredient in a wide range of products we come into contact with on a daily basis, including paper, paints, plastics, rubber, pharmaceuticals, and even chewing gum. Consumers who use talc body powders or products containing talc have extremely low talc exposure levels when compared to workers who are exposed to talc dust during the mining or processing of talc ore. Talc powders may generate dust in an industrial setting if improperly handled or processed. The quantity and duration of inhalation, as with all dusts, determine the level of risk. The human lungs have a built-in mechanism for clearing inhaled particles. However, excessive exposure can overwhelm this, causing particles to accumulate in the lungs, a condition known as pneumoconiosis. Tobacco use reduces the lungs' clearance capacity significantly. Extensive research has demonstrated that talc has a "inert" dust effect rather than a toxic effect. Occupational exposure limits are legally mandated in the European Union, North America, Australia, and a number of other countries. To avoid any negative effects, workers should adhere to these limits. Rather than relying on dust masks, the preferred method for controlling occupational dust exposure is to reduce dust generation and release. EUROTALC members make safety information available to their customers. They are also eager to share their extensive experience in dust control and occupational health management with them.
ابتكار
Talc Applications – Innovative and Sustainable Solutions Talcs are used in a variety of applications. In many cases, talc contributes to reducing the environmental impact of these applications in addition to performing a technical function. Continuous product development and research are carried out in close collaboration with downstream industries to meet the evolving societal and market needs
تلك في ورق
يقلل من استهلاك المياه وتصريف مياه الصرف الصحي. يمتص التلك الشوائب العضوية (الزفت ، الأنيون) في الماء ، مما يقلل من كمية المياه العذبة المطلوبة في عملية صناعة الورق. نتيجة لذلك ، يمكن أن تعمل المطاحن في دوائ ر المياه المغلقة ، مما يقلل من مخرجات المياه العادمة. على عكس مواد التنظيف الكيميائية ، يعتبر التلك مادة مضافة طبيعية ينتهي بها الأمر كحشو في المنتج الورقي النهائي ، مما يؤدي إلى تجنب إنشاء مجرى نفايات آخر.
تلك في بلاستيك
يسمح بتطوير مواد بلاستيكية أكثر صداقة للبيئة. يتم استبدال البلاستيك بمختلف أنواعه بشكل متزايد بالبولي بروبيلين المقوى بالتلك ، والذي يمكن إعادة تدويره بسهولة (PP). يزيد التلك من صلابة البولي بروبلين ، مما يسمح بخفض ضغط المنتج النهائي. تستخدم مادة البولي بروبيلين المقوى بالتلك ، على سبيل المثال ، في تطبيقات السيارات لتقليل الوزن الإجمالي للمركبة ، مما يؤدي إلى توفير الوقود. علاوة على ذلك ، يتأكسد البولي بروبيلين المقوى بالتلك أو يتحلل ، وينبعث منه الماء وثاني أكسيد الكربون ، ويترك فقط التلك الخامل الآمن بيئيًا كبقايا.
التلك في السيراميك
يساهم في تطوير جيل جديد من السيراميك. يتم تقليل الانبعاثات السامة باستخدام عوادم محفز السيارات وفلاتر محرك الديزل. يتم توفير مقاومة الصدمات الحرارية بواسطة دعامات خزفية تحتوي على أكثر من 30٪ من التلك. يساعد التلك في تقليل المواد الخطرة المحتملة ، مثل المعادن الثقيلة السامة ، في صياغة الصقيل في الأدوات الصحية. ساعد استخدام التلك في بكرات الفرن أيضًا في تطوير تقنية الفرن الأسطواني الجديدة ، مما أدى إلى توفير الطاقة وتقليل انبعاثات غازات الاحتباس الحراري.
التلك في الزراعة
يحسن قابلية تدفق منتجات الصحة النباتية ويوفر الطاقة. يقوم التلك بتغطية كريات الأسمدة بشكل أكثر فعالية ، مما يوفر الهيدروكربون المستخدم كمواد لاصقة. السماد المطلي بالتلك له تأثير بيئي أقل وأقل روائح لأنه يتطلب محتوى أقل من الهيدروكربونات. نتيجة لذلك ، فهو أفضل لصحة عمال المصانع. يحسن التلك سيولة الأعلاف الحيوانية. ينتج عن هذا تراكم أقل للبكتيريا في الدوائر وتقليل توقف الإنتاج ، مما يؤدي إلى توفير الطاقة وعمل عامل أكثر أمانًا.
تلك في المطاط
يساعد على تحسين أداء المطاط. يقلل التلك من نفاذية خراطيم السيارات ، ويقلل من معدلات تبخر الهيدروكربونات ويقلل من الانبعاثات السامة ورائحة الوقود. تعمل بودرة التلك على تسريع دورات المطحنة ، مما يقلل من متطلبات الطاقة.
التلك في معالجة مياه الصرف الصحي
يعزز أداء وحدات معالجة مياه الصرف الصحي الحمأة المنشطة. تساعد المنتجات القائمة على التلك محطات معالجة مياه الصرف الصحي المنشطة على أداء أفضل (حيث تُستخدم البكتيريا لتقليل النفايات). تعمل جزيئات التلك كثقل للكتل البكتيرية ، مما يحسن الترسيب وتصفية النفايات السائلة. ينتج عن ذلك نفايات سائلة عالية الجودة بدون فقدان جرثومي. يمكن ترقية النباتات بهذه الطريقة دون الحاجة إلى توسعات نباتية مكلفة. على عكس معظم المواد الكيميائية المستخدمة في تنظيف مياه الصرف الصحي ، يعتبر التلك مادة مضافة معدنية طبيعية خاملة بيئيًا لا تقلل من قيمة تسميد الحمأة.
التلك في معاجين
يسمح بتقليل محتوى المذيبات. تحتوي معاجين البوليستر عادةً على 13٪ إلى 15٪ ستيرين لتقليل اللزوجة. تسمح إضافة التلك منخفض الامتصاص للزيت للقائمين بالتركيب بتقليل محتوى الستايرين لتلبية المعايير الأوروبية مع الحفاظ على اللزوجة المناسبة.
التلك في الطلاء
يساهم في متانة الطلاء وتقليل المركبات العضوية المتطايرة. يعمل خمول التلك على تحسين الالتصاق ومقاومة التآكل ، مما يطيل من عمر الطلاء. تمكن خصائص اللزوجة المنخفضة من التلك مصنعي الطلاءات من إنتاج دهانات منخفضة التطاير من المركبات العضوية (VOC) ، مما يقلل من الكمية المطبقة وانبعاثات المذيبات. هذا يفيد كلاً من البيئة وصحة المستخدمين.
عنوان
CUMHURİYET MAH.GÜRPINAR YOLU CAD.BEYKENT İŞ MERK.NO.4 / 1/348 BÜYÜKÇEKMECE
هاتف
+90538938 31 85
+90538938 69 84
