subject: Interview With The Paper Industry In China Stone [print this page] "There is a beautiful legend, the stone will sing ... beautiful ..."
Believe most people are familiar with this song. But you've heard, stones can be used to paper it?
Stone paper, not a fantasy, but now China has gradually emerging a new industry. Compared with the traditional paper making, paper production process of this rock does not need water, not exhaust fumes, wastewater and other hazardous waste. This paper is biodegradable, recyclable, waterproof and moisture, good writing, Print Performance, high-definition features, can replace 60% of wood pulp, straw pulp, of great economic value and social significance.
Stone paper products will also soon appear in our lives: this year's "two sessions," put in on behalf of, members of the paper bags on the table, notes, etc. can be recycled from the past, replaced by rock paper; 3 at the end, Beijing and Chongqing and other places people will be in supermarkets, stores and convenience store and buy raw materials to use limestone as the main operating out of this, shopping bags, garbage bags, raincoat, disposable table cloth and other products.
The new Environmental protection What paper to use raw materials magic stone? How did the production come from? How the domestic technology level in the end? With a lot of questions, the reporter interviewed.
Raw materials mainly in local stone
Present, Paper China's paper making enterprises the main source of raw materials. More than imports in China each year thousands of tons of waste paper, together with some of the domestic recycling of waste paper, waste paper raw material structure in the proportion of 52%. In addition to paper materials, there are the traditional trees, bamboo and other raw materials.
The main constituents of the paper stone powder (composed of calcium carbonate), add the resin, our country except Taiwan enterprises, domestic enterprises or research institutions claimed to have mastered this technology. The published information see little difference between various technologies, the ratio of components close to 80% of the basic powder is added 20% Additive And specific additives, the ratio of operating process some differences.
As different from the traditional use of raw materials for papermaking, CAS researcher at the Institute of Geographic Sciences and Resources in Eastern Coastal believe that the stone is of inorganic material-based Paper Paper , No major pollution on the environment, no major damage to resources is an environmental protection industry, it is expected to replace the traditional plant-based raw materials, organic materials, mainly paper.
"Limestone is everywhere in our country, very rich. The paper industry is heavily polluting industries in our country, our imports of timber pressure, great pressure on resources and the environment, if a certain extent, this product can replace traditional paper its economic benefits, ecological benefits, particularly the impact of energy saving is considerable. "DONG Suo-cheng said.
's Learned from all over the project has been launched or are about to see are full use of local stone resources. Chongqing Wulong projects such as the use of local calcite, barite resources (calcite in Chongqing Wulong, Pengshui and Nanchuan very rich reserves). Shaanxi Qinling Mountains is the use of dolomite, tremolite, etc. as raw material. In addition to stone and mineral raw materials, but also developed around the use of coal powder, industrial waste (such as slag), fly ash and other raw materials as paper.
Rely on the construction of Shaanxi University of Science and the Shaanxi Provincial Paper Specialty Paper Laboratory recently announced the successful rock-paper technology research and has produced a stone base paper sample. According to the laboratory responsible person from the Qinling Mountains of dolomite, tremolite, northern Shaanxi coal powder, industrial waste (such as slag), etc., can be as paper-making raw material.
NPC Environmental and Resources Committee to give the former vice chairman Ye Rutang rock paper industry highly of: "Inorganic environmental rock paper project either energy, water, reducing consumption of resources, but also reduce pollution, protect the environment, to improve China's paper industry and polymer materials processing industries, modern development, and create harmonious social environment, promote economic growth and so will have a positive effect.
