当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
8期
1962-1964,2013
,共4页
仲钨酸铵%分解%除杂%除钼%回收
仲鎢痠銨%分解%除雜%除鉬%迴收
중오산안%분해%제잡%제목%회수
Ammonium paratungstate%Decomposition%Impurity%Removing molybdenum%Recovery
为了进一步促进 APT 工艺的合理性，对其工艺进行了探析。确定了采用苛性钠浸出法，实现原料从钨矿石的分解；对净化除杂过程及工艺进行了分析；在除钼工艺的选择中对比确定了选择沉淀去除钼；在仲钨酸铵溶液结晶工艺中确定选择了间断蒸发结晶方法；在仲钨酸铵结晶母液回收工艺选择中确定了转化法工艺；最后对工艺中的三废处理及环境保护进行了分析。所设计的方案在各个方面均能到达要求，这一研究对APT 工艺改进的实际生产具有一定的借鉴意义。
為瞭進一步促進 APT 工藝的閤理性，對其工藝進行瞭探析。確定瞭採用苛性鈉浸齣法，實現原料從鎢礦石的分解；對淨化除雜過程及工藝進行瞭分析；在除鉬工藝的選擇中對比確定瞭選擇沉澱去除鉬；在仲鎢痠銨溶液結晶工藝中確定選擇瞭間斷蒸髮結晶方法；在仲鎢痠銨結晶母液迴收工藝選擇中確定瞭轉化法工藝；最後對工藝中的三廢處理及環境保護進行瞭分析。所設計的方案在各箇方麵均能到達要求，這一研究對APT 工藝改進的實際生產具有一定的藉鑒意義。
위료진일보촉진 APT 공예적합이성，대기공예진행료탐석。학정료채용가성납침출법，실현원료종오광석적분해；대정화제잡과정급공예진행료분석；재제목공예적선택중대비학정료선택침정거제목；재중오산안용액결정공예중학정선택료간단증발결정방법；재중오산안결정모액회수공예선택중학정료전화법공예；최후대공예중적삼폐처리급배경보호진행료분석。소설계적방안재각개방면균능도체요구，저일연구대APT 공예개진적실제생산구유일정적차감의의。
In order to further improve the rationality of APT process, its process was analyzed and studied. It’s pointed out that the caustic soda leaching method should be used to decompose tungsten ore. And then the removing impurity process was analyzed. It’s pointed out that the sedimentation method should be used to remove molybdenum; the intermittent evaporation crystallization method should be used in ammonium paratungstate solution crystallization process; the transformation method should be used in ammonium paratungstate crystal liquor recovery process. At last, waste treatment and environmental protection were analyzed. The designed program can reach the requirements, in all aspects; this study has certain significance for APT process improvement.
