草食性动物排泄物制备氧压酸浸炼锌中分散剂的研究与应用

Research and Application of Preparation of Dispersants in Oxygen Pressure Acid Leaching Zinc from Herbivorous Animal Excrements

对木质素在牧草中的分布进行了详细论述,对牧草的体外消化情况进行了分析,归纳了木质素的制备方法,创新地提出了草食性动物排泄物富集—提纯木质素—制备氧压浸出分散剂的技术新思路,利用草食性动物消化—分解—吸收植物中蛋白质、脂肪、淀粉和粗纤维等营养物质,使得木质素残留在排泄物中,实现了木质素的天然富集,并以草食性动物排泄物为原料制备了木质素磺酸盐,提高了木质素磺酸盐单位产出量,降低了处理成本。该技术结合了冶炼企业与草原生态的特点,充分利用当地草原牧草、草食性动物排泄物为锌氧压浸出提供制备木质素的原材料,形成了植物-动物-锌冶炼多领域相结合的特色工艺。

The distribution of lignin in forage was discussed in detail,the in vitro digestion of forage was analyzed,and the preparation methods of lignin was summarized.A new technical idea of enrichment of herbivorous animal excrement,purification of lignin and preparation of oxygen pressure leaching dispersant was put forward.By using herbivorous animals to digest,decompose and absorb nutrients such as protein,fat,starch and crude fiber in plants,lignin remains in the excrement and natural enrichment of lignin was realized.Lignosulfonate was prepared from herbivorous animal excrement,which increases the unit output of lignosulfonate and reduces the processing cost.This technology combines the characteristics of smelting enterprises and grassland ecology,makes full use of local grassland grass and herbivorous animal excrement to provide raw materials for preparing lignin for zinc oxygen pressure leaching,and forms a characteristic process combining plant-animal-zinc smelting in multiple fields.