Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid
The invention discloses a novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid, and belongs to the field of aluminum sulfate preparation.The invention relates to a novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid, which solves the problem of recycling dilute sulfuric acid, saves the treatment cost and meets the environmental protection requirement. Sulfuric acid is saved, and waste is turned into wealth; the tail gas meets the environmental protection requirement, heat is recycled for other boilers to preheat pure water, and primary water is saved by recycling condensate water. The yield is improved; the method solves the problem of environmental pollution of tailings, and benefits are generated by using the tailings as a product instead of sending compensation money to other people. A membrane filter press enables slag and water to be separated completely, return water is clear, sedimentation is facilitated, a virtuous cycle is formed, and zero water discharge is achieved.
本发明公开了一种工业硫酸分解铝土矿法生产硫酸铝的清洁生产新工艺，属于硫酸铝制备领域。一种工业硫酸分解铝土矿法生产硫酸铝的清洁生产新工艺，本发明解决了稀硫酸再利用问题，省去了处理费用，达到环保要求。节约硫酸，变废为宝；本发明尾气符合环保要求，回收热量供其他锅炉预热纯水，回收冷凝水节约了一次水。提高产量；本发明解决了尾渣环境污染问题，由赔钱送给别人到作为产品，产生效益。隔膜压滤机使渣水分离干净,回水清澈,利于沉降,形成了良性循环，实现水零外排。
Novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid
The invention discloses a novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid, and belongs to the field of aluminum sulfate preparation.The invention relates to a novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid, which solves the problem of recycling dilute sulfuric acid, saves the treatment cost and meets the environmental protection requirement. Sulfuric acid is saved, and waste is turned into wealth; the tail gas meets the environmental protection requirement, heat is recycled for other boilers to preheat pure water, and primary water is saved by recycling condensate water. The yield is improved; the method solves the problem of environmental pollution of tailings, and benefits are generated by using the tailings as a product instead of sending compensation money to other people. A membrane filter press enables slag and water to be separated completely, return water is clear, sedimentation is facilitated, a virtuous cycle is formed, and zero water discharge is achieved.
本发明公开了一种工业硫酸分解铝土矿法生产硫酸铝的清洁生产新工艺，属于硫酸铝制备领域。一种工业硫酸分解铝土矿法生产硫酸铝的清洁生产新工艺，本发明解决了稀硫酸再利用问题，省去了处理费用，达到环保要求。节约硫酸，变废为宝；本发明尾气符合环保要求，回收热量供其他锅炉预热纯水，回收冷凝水节约了一次水。提高产量；本发明解决了尾渣环境污染问题，由赔钱送给别人到作为产品，产生效益。隔膜压滤机使渣水分离干净,回水清澈,利于沉降,形成了良性循环，实现水零外排。
Novel clean production process for producing aluminum sulfate by decomposing bauxite with industrial sulfuric acid
一种工业硫酸分解铝土矿法生产硫酸铝的清洁生产新工艺
WANG ZHIYONG (Autor:in) / XU XUE (Autor:in) / ZHANG SHIDONG (Autor:in) / ZHAO JIGUO (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
C04B
Kalk
,
LIME
/
F28D
Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen
,
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
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