清洗工艺为盐酸酸洗、柠檬酸漂洗、双氧水钝化。
The cleaning technology was hydrochloric acid cleaning, citric acid rinse, peroxide passivation.
还原所得粗碲粉经亚硫酸钠脱硒，盐酸酸洗除杂处理，硒、砷、锡、铜的脱出率分别达到99%、93%、80%、87.5%，得到含碲99.669%的金属碲粉。
After the treatment with NaSO_3 and hydrochloric acid, 99% Se, 93% As, 80% Sn and 87.5% Cu are removed from the raw powdered-tellurium, and the powders of 99.669% te are prepared.
主要研究了钢板的硫酸酸洗时间对搪瓷性能的影响，比较了不同的酸洗时间对搪瓷抗冲击性能、耐盐酸性能和耐柠檬酸性能的影响。
The effect of pickling time of sulfuric acid on enamel′s properties of adherence strength, hydrochloric acid and citric acid resistance according to GB was investigated.
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