以工业石灰为原料合成氯化钙

U. Jussipbekov, R. Chernyakova, R. Kaiynbayeva, G. Sultanbayeva, I.A. Kuksina, N. Kozhabekova
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引用次数: 0

摘要

氯化钙是石油、天然气、化工、化工制药、林业、建筑等行业的热门产品。本工作的目的是利用劣质石灰石合成氯化钙,计算其生产过程中的物质平衡,并研究在石油工业中使用氯化钙的可能性。方法:采用红外分光光度计在225 ~ 4000 cm-1光谱区拍摄红外光谱。以工业石灰为原料,选择碱式盐酸法生产氯化钙。根据已知的方法进行了CaCI2溶液的合成和纯化。结果和讨论。实验表明,氯化钙提高了海水压井液的防腐性能。当CaCI2浓度为35%时,由于化学成分的原因,保护程度最高(89.83%)。在废水中加入CaCI2会增加其矿化和整体硬度,从而形成更具侵略性的环境,提高腐蚀速度。结论:对从技术原料中获得纯氯化钙的工艺进行了可行性研究,计算了该工艺的物料平衡,结果表明,所得氯化钙的成本不超过1吨纯氯化钙在服务市场上的成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SYNTHESIS OF CALCIUM CHLORIDE FROM TECHNICAL LIME
Calcium chloride is a popular product for oil/oil, gas, chemical, chemical-pharmaceutical, forest, construction and other industries. The aim of this work is to synthesize calcium chloride from low-quality limestone, to calculate the material balance of the process of its production and to study the possibility of using CaCI2 in the oil industry. Methodology: Infrared spectra were filmed on an infrared spectrophotometer in the spectral region 225-4000 cm-1. The basic hydrochloric acid method is selected for producing calcium chloride from technical lime. The synthesis and purification of the CaCI2 solution were carried out according to a known method. Results and discussion. Experiments have shown that calcium chloride enhances the anti-corrosion properties of a seawater well-killing fluid. The highest degree of protection (89.83%) was observed at 35% CaCI2 concentration due to chemical composition. Introducing CaCI2 into wastewater increases its mineralization and overall hardness, resulting in the formation of a more aggressive environment and an increased corrosion rate. Conclusions: A feasibility study of the process of obtaining pure calcium chloride from technical raw materials was carried out, the material balance of this process was calculated, and it was shown that the cost of the resulting CaCl2 does not exceed the cost of 1 ton of pure CaCl2 on the market of services.
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