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The conventional production process of the vulcanization accelerator M includes an acid-base method and a solvent method. The acid-alkali production process produces a large amount of high-concentration wastewater, which is difficult to handle. Although the solvent method does not generate wastewater, the product quality is poor and the cost is high. Compared with the acid-alkali method, it lacks market competitiveness and can not achieve industrial production. In order to change the status quo of high pollution and high consumption in domestic production of Accelerator M, Kailun Chemical absorbs advanced technology from abroad and combines many years of practical experience in production. Over five years, it succeeded in the traditional solvent production process. Developed a new process for cleaner production of vulcanization accelerator M and recycling of hydrogen sulfide gas.
The new process does not produce any waste water in the production process. It realizes zero discharge of waste water from the process source, and all the hydrogen sulfide exhaust gas is converted into sulfur recovery and reuse, which has significant social, economic and environmental benefits. In May 2009, the technology passed the appraisal of scientific and technological achievements in Henan Province and applied for two national patents.
It is worth mentioning that the new process has made major breakthroughs in the rapid recycling of solvents and improving product quality. This new solvent extraction process uses solvent extraction instead of acid-base reaction and neutralization in the post-treatment process. The entire production process realizes zero discharge of waste water. A fully-encapsulated solvent is used to rapidly recover the circulation system, reducing the solvent evaporation to air pollution. In the high-pressure synthesis process, a closed high-pressure reactor is used to make the reaction of the material more complete; the temperature measurement system is improved, the reaction time is shortened, and the yield and product quality are improved; the hydrogen sulfide tail gas recovery and recycling system converts all the hydrogen sulfide exhaust gas into Sulfur recycling has enabled clean production and recycling of waste.
In addition, the new process will improve the key production equipment such as high-pressure reactors and electric heating devices, shorten the reaction time, increase the yield and product quality, reduce the consumption of raw materials and energy, and save energy and reduce consumption.
The first set of 10,000-ton vulcanization accelerator M plant was put into operation
On February 23rd, Henan Kailun Chemical Co., Ltd. invested more than RMB 30 million to build the first domestic 10,000-ton-grade vulcanization accelerator M production plant. After nearly five months of trial operation, it has achieved production and sales volume of 4,000 tons so far. , Product quality, production costs and other technical indicators have reached the leading domestic level. The device also realizes clean production. Compared with the acid-alkali process commonly used in the country, it can reduce the discharge of high-concentration industrial wastewater by 40 to 60 tons per ton of product, and the exhaust gas can be fully recycled and reused.