Most popular places such as Yunnan realize paperma

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More than 2000 years ago, China was the first country in the world to invent papermaking with plant fibers as raw materials. Today, paper mills in this ancient civilization have begun to use ore as paper making raw materials

Yunnan Province, China, which first realized ore papermaking, has now produced thousands of tons of high-quality paper. After this major technological innovation has been extended to Shaanxi, Sichuan, Shandong and other places and submitted to the relevant departments of enterprises for effective review, more paper mills can replace some wood with ore when making paper

Yunnan is located in the southwest border of China and is rich in mineral resources. The pilot scale base for the development and utilization of non-metallic minerals here began to explore the use of ore as paper-making raw materials in 1999, and finally invented the grinding of wollastonite into ultra-fine powder to replace plant pulp. Now, every ton of wollastonite superfine powder used in papermaking can save 3.6 cubic meters of wood

wollastonite ultrafine powder is called mineral fiber. Zhong Guangrong, a senior engineer of Yunnan Institute of nonmetallic mineral applications, said that using advanced ultra-fine grinding technology, wollastonite can be crushed into fibers. For patients with atrophy of the eyeball and cornea, wearing it for 1 year did not cause corneal bullae and other irritating symptoms, so that it can be combined with plant paper pulp. Wollastonite is mixed with plant pulp without changing traditional technology and equipment

experts say that wollastonite paper can produce all kinds of paper, from ordinary packaging paper to high-grade coated paper. These papers no longer carry strong static electricity, and their performance and transparency are improved

using wollastonite to make paper can also improve economic benefits. Compared with wood pulp, the cost can be reduced by 100 to 300 yuan per ton of wollastonite ultrafine powder. Wollastonite papermaking can reduce the discharge of black liquor in the process of wood pulping, which is conducive to environmental protection

Yunnan Province is the only province in Southwest China that has rich current resources of wollastonite, with proven wollastonite reserves of 53.63 million tons and prospective reserves of more than 100 million tons, accounting for 28% of the total reserves in China. At present, Kunming, Yunnan Province has built a modern enterprise with an annual output of 100000 tons of wollastonite ultra-fine powder

Shi Yubei, general manager of Yunnan ultra micro new materials Co., Ltd., said that China's current annual output of paper is 30million tons, and papermaking wood pulp is increasingly tense due to the impact of the ban on cutting natural forests in the middle and upper reaches of the Yangtze River, and the demand for wollastonite in the paper industry will be increasing

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