利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN105420487A 一种铬矿钾化焙烧的方法 无效 - 驳回

一种铬矿钾化焙烧的方法
摘要：
本发明属于提铬化工技术领域，具体涉及一种铬矿钾化焙烧的方法。本发明所要解决的技术问题是提供一种铬矿钾化焙烧方法，包括以下步骤：将添加剂与铬矿混匀后得到混合料，将粘结剂与混合料混合制成球团，将球团干燥后于780～900℃焙烧即可；所述的添加剂为碳酸钾或碳酸氢钾；所述的粘结剂为质量分数5～30％的氢氧化钾溶液或质量分数5～30％的碳酸钾溶液。该方法不仅可以提高铬的回收率，而且也避免了钒渣在高温焙烧的过程中产生粘结。
摘要（英）：

The invention belongs to the technical field of the chrome extraction chemical industry, and particularly relates to a potassic roasting method for chrome ore. To achieve technical purposes, the potassic roasting method for the chrome ore includes the following steps that an additive and the chrome ore are evenly mixed to obtain a mixture, a binding agent and the mixture are mixed to prepare balls, and the balls are dried and then roasted at the temperature of 780-900 DEG C. The additive is potassium carbonate or potassium bicarbonate, and the binding agent is a potassium hydroxide solution with the mass fraction being 5%-30% or a potassium carbonate solution with the mass fraction being 5%-30%. By means of the method, the chrome recovery rate can be increased, and moreover, vanadium slag is prevented from being bonded in the high-temperature roasting process.

0/0