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In the synthesis of quinolinic acid, the key step is the oxidation in the first step to form copper quinolinate. Bubbles easily form during this reaction, and since chlorine gas is trapped within these bubbles, it is difficult to remove them, which hinders an increase in the reaction rate. We developed a \"foam-elimination reaction catalyst\" for the synthesis of copper quinolinate, which eliminates the bubbles formed during the reaction process; as a result, the reaction rate increased by 10 to 20 times. The oxidation reaction is exothermic, so almost no heating is required. In a 1000 ml four-necked flask, 60 g of quinoline is added, and the sodium chlorate needed is dissolved in water and can be added drop by drop within 1 hour. From the start of feeding the materials until the reaction is complete, it takes no more than 6 hours. The yield of the resulting copper quinolinate is 15% higher than that achieved using the traditional method, which translates into an economic benefit of around 10,000 yuan per ton. Due to the thoroughness of the reaction, the wastewater can be reused, resulting in zero wastewater discharge – thus representing an environmentally friendly production process. I am willing to cooperate with investors interested in developing the production of this product, in order to reduce the current price of quinoline acid by 5,000 yuan per ton. This will lead to the shutdown of older production methods, while the cost of advanced production processes for quinoline acid will be significantly reduced; I will be the one to decide on the price of quinoline acid.
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The old process for producing quinolinic acid poses safety risks; on January 9th, an explosion occurred in one factory during the oxidation step, after the materials were added and the temperature was raised.