含钛高炉渣与废旧印刷线路板协同全组分资源化方法

• Format: Patent
• Language: Chinese
• Published: 22.03.2019
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; COMPOUNDS THEREOF; CONCRETE; DISPOSAL OF SOLID WASTE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF NATURAL STONE

本发明公开种含钛高炉渣与废旧印刷线路板协同全组分资源化方，属于无机材料制备技术领域。该方法首先将含钛高炉渣与适量的废旧印刷线路板WPCBs混合均匀加热至熔融确保混合均匀，再与定的NaCO混合均匀进行热态改性处理，经过稀盐酸酸浸过滤后获得的CaTiO含量达到75％以上；滤液用氨水调节pH，过滤后再用酸洗除去Fe即得到水合二氧化硅，滤液再用氨水调pH以获得镁铝尖晶石的前驱物，高温灼烧得到多元掺杂镁铝尖晶石与钙铝石复合材料。本发明方法能够分别制备烟气选择性还原(SCR)脱硝催化剂、水合二氧化硅和镁铝尖晶石与钙铝石复合材料，本发明方法对高炉渣与WPCBs进行了协同资源化利用，具有显著的经济和社会效益。 The invention discloses a synergetic all-component recycling method for titanium-containing blast furnace slag and waste printed circuit boards (WPCBs) and belongs to the technical field of preparation of inorganic materials. According to the method, the titanium-containing blast furnace slag and a proper quantity of WPCBs are mixed evenly and heated to be melted firstly, even mixing is guaranteed, then the mixture is evenly mixed with a certain quantity of Na2CO3 for thermal-state modification treatment, and the content of CaTiO3 obtained after acid leaching with diluted hydrochloric acid and filtering is 75% or higher; the pH of a filtrate is adjusted with ammonia water, silicon dioxide hydrate is obtained after