Guangxi Longhua Calcium Carbonate (CaCO3) products are divided into Guangxi Longhua precipitated calcium carbonate and Guangxi Longhua light calcium carbonate. They are important inorganic chemical products, widely used as fillers in plastics, paper, coatings, rubber, toothpaste, etc., due to their low price, abundant raw materials, and non-toxicity.

Guangxi Longhua Calcium carbonate (CaCO3) products are divided into Guangxi Longhua Heavy calcium carbonate and Guangxi Longhua Light calcium carbonate, are important inorganic chemical products. Due to their low price, wide range of raw materials, and non-toxicity, they are widely used as fillers in plastics, paper, coatings, rubber, and toothpaste.

　　In the past, calcium carbonate was generally used as a filler to reduce costs, and it achieved good results. With the continuous progress of calcium carbonate processing technology, the particle size of calcium carbonate has gradually become ultrafine, some have reached the nanometer level, and the particle size distribution is becoming narrower. The surface treatment technology and blending technology of calcium carbonate are also constantly improving. Now, calcium carbonate has transformed from a simple filler to a new type of functional material, and its application fields are becoming increasingly wider.

　　The low-end calcium carbonate product market is very competitive, and the profit margin is limited. Therefore, high-end calcium carbonate has become a new trend in the future market. In the high-end market, calcium carbonate exists in forms such as nano calcium carbonate, calcium carbonate whiskers, and paper coating-grade double-90 slurry.

　　1、 Guangxi Longhua East Nano Calcium Carbonate

　　Nano calcium carbonate is a new type of ultrafine inorganic material developed in the 1980s. Due to the ultrafine nature of the particles, its crystal structure and surface electronic structure change, producing effects not possessed by ordinary calcium carbonate. Nano calcium carbonate usually refers to ultrafine calcium carbonate products with a particle size of 1-100 nanometers.

　　There are more than 30 nano calcium carbonate production enterprises in China, with a total annual output of 550,000 tons. The current selling price of nano calcium carbonate is 2000-2500 yuan/ton. The main application markets are high-end plastics, high-end coatings, rubber industry, and feed industry. In the feed industry, nano calcium carbonate can be used as a calcium supplement to increase the calcium content of feed. In addition, it can be used in cosmetics because of its high purity, good whiteness, and fine particle size, making it a substitute for titanium dioxide.

 

 

　　2、Calcium Carbonate Whiskers

　　Calcium carbonate whiskers can be applied to the fields where general granular calcium carbonate light calcium, heavy calcium, and nano calcium carbonate are applied. Under the same conditions, compared with light calcium and heavy calcium, calcium carbonate whiskers, in addition to their volume-increasing effect, also exhibit significant strengthening and toughening effects. Therefore, they can improve the performance of products while reducing the manufacturing cost, thereby improving the cost-effectiveness of products. When nano calcium carbonate is used as a filler for rubber and plastics, its reinforcing effect is obvious. However, because nano-powders are easily agglomerated, they exist in products as secondary particles in many cases, and the strengthening effect is difficult to fully exert. Calcium carbonate whiskers rely on their own high strength and high modulus to produce a strengthening effect in the system, and because they are micron-sized, agglomeration is less, and they are easy to disperse, so they can more effectively exert their strengthening and toughening effects. Calcium carbonate whiskers are mainly used in reinforced plastics, friction material fillers, and high-grade paper fillers.

　　3、Paper Coating Grade Calcium Carbonate Slurry

　　Paper coating grade calcium carbonate slurry is a calcium carbonate product developed for the application characteristics of the paper industry. It usually requires a whiteness of over 90 and a particle size D90 of less than 2um, meeting the double-90 standard. In fact, the slurries currently on the market have already reached the double-98 standard.

　　Currently, a new development trend in the global calcium carbonate industry is that various specialized calcium carbonate productions and their downstream major users—paper and coating manufacturers—form a satellite-type industrial structure. Supporting production close to these major users can enable calcium carbonate to be transported in slurry form through pipelines, saving the drying process of calcium carbonate slurry, saving a lot of energy, and greatly reducing production costs. The domestic calcium carbonate industry has noticed this international development trend, and some large calcium carbonate enterprises have begun to actively contact downstream major users, building factories and supplying slurry nearby, greatly improving the profit value of products.

　　 Guangxi Longhua Xiangfa Powder, a manufacturer of heavy calcium carbonate, believes that the calcium carbonate industry is still a sunrise industry. By continuously improving and perfecting production technology and producing high-grade calcium carbonate products, gradually replacing imports will become a new engine for the development of the calcium carbonate industry.