Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses an iron removing and whitening method for a ceramic raw material, which comprises the following steps: mixing ethylenediaminetetraacetic acid and disodium ethylenediaminetetraacetate dihydrate, and uniformly stirring to obtain a solid A; drying, crushing and sieving the ceramic mud sand material to obtain a solid B; dispersing the solid B in water, stirring, carrying out ball milling, and adding the solid A to obtain a liquid A; continuously stirring, and heating the liquid A in a constant-temperature water bath; centrifuging the liquid A after the water bath heating is completed to obtain a solid C and a liquid B; drying, crushing and sieving the solid C to obtain a product solid D; filtering, crystallizing and drying the liquid B to obtain a byproduct solid E; according to the method, the iron removal and whitening requirements of muddy and sandy raw materials can be met at the same time, the produced waste liquid can be prepared into byproducts through simple treatment, and the production cost is reduced. In addition, equipment, instruments, conditions and the like involved in the method are all easy to implement, and the method has certain practical value.
本发明公开了一种用于陶瓷原料的除铁增白方法，步骤为：取乙二胺四乙酸和乙二胺四乙酸二钠二水合物混合，搅拌均匀得到固体A；将陶瓷泥砂料进行烘干、破碎、过筛，得到固体B；将固体B分散于水中，搅拌、球磨之后，加入固体A，得到液体A；持续搅拌，将液体A进行恒温水浴加热；水浴加热完成后将液体A离心，得到固体C和液体B；将固体C烘干、破碎、过筛，获得产物固体D；将液体B过滤、结晶、烘干，获得副产物固体E。本发明方法能同时达到泥质、砂质原料的除铁增白要求，而产生的废液经简单处理，可以制备成副产物，降低了生产成本。此外，本发明方法涉及的设备、仪器、条件等，均易于实现，具有一定的实用价值。
The invention discloses an iron removing and whitening method for a ceramic raw material, which comprises the following steps: mixing ethylenediaminetetraacetic acid and disodium ethylenediaminetetraacetate dihydrate, and uniformly stirring to obtain a solid A; drying, crushing and sieving the ceramic mud sand material to obtain a solid B; dispersing the solid B in water, stirring, carrying out ball milling, and adding the solid A to obtain a liquid A; continuously stirring, and heating the liquid A in a constant-temperature water bath; centrifuging the liquid A after the water bath heating is completed to obtain a solid C and a liquid B; drying, crushing and sieving the solid C to obtain a product solid D; filtering, crystallizing and drying the liquid B to obtain a byproduct solid E; according to the method, the iron removal and whitening requirements of muddy and sandy raw materials can be met at the same time, the produced waste liquid can be prepared into byproducts through simple treatment, and the production cost is reduced. In addition, equipment, instruments, conditions and the like involved in the method are all easy to implement, and the method has certain practical value.
本发明公开了一种用于陶瓷原料的除铁增白方法，步骤为：取乙二胺四乙酸和乙二胺四乙酸二钠二水合物混合，搅拌均匀得到固体A；将陶瓷泥砂料进行烘干、破碎、过筛，得到固体B；将固体B分散于水中，搅拌、球磨之后，加入固体A，得到液体A；持续搅拌，将液体A进行恒温水浴加热；水浴加热完成后将液体A离心，得到固体C和液体B；将固体C烘干、破碎、过筛，获得产物固体D；将液体B过滤、结晶、烘干，获得副产物固体E。本发明方法能同时达到泥质、砂质原料的除铁增白要求，而产生的废液经简单处理，可以制备成副产物，降低了生产成本。此外，本发明方法涉及的设备、仪器、条件等，均易于实现，具有一定的实用价值。
Method for removing impurities and whitening phosphogypsum
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024