Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR PRODUCING SULFUR-BASED COMPOSITION AND CEMENT COMPOSITION, SYSTEM FOR PRODUCING CEMENT COMPOSITION, AND CEMENT-BASED SOLIDIFYING MATERIAL
To provide a method for simply and stably producing a sulfur-based composition having an effective reduction effect for suppressing elution of hexavalent chromium.SOLUTION: A method for producing a sulfur-based composition includes: a production step of producing a gas containing sulfurous acid gas and/or hydrogen sulfide; a slurry preparation step of absorbing the sulfurous acid gas and/or hydrogen sulfide contained in the gas into a raw material slurry to obtain a slurry containing sulfur-based compounds; an addition step of adding 0.01 to 10 mass% of glycol-based compounds in total to the raw material slurry and/or the slurry containing the sulfur-based compounds on the basis of a solid content contained in the raw material slurry; and a slurry concentration adjustment step of adjusting the solid content concentration of the slurry containing the sulfur-based compounds to 0.1 to 95 mass%.SELECTED DRAWING: None
【課題】六価クロムの溶出低減に有効な還元効果を有する硫黄系組成物を、簡便に且つ安定的に製造することが可能な製造方法を提供する。【解決手段】亜硫酸ガス及び／又は硫化水素を含むガスを生成する製造工程と、該ガスに含まれる亜硫酸ガス及び／又は硫化水素を原料スラリーに吸収させて硫黄系化合物を含むスラリーを得るスラリー調製工程と、原料スラリー及び／又は硫黄系化合物を含むスラリーに、原料スラリーに含まれる固形分を基準として、グリコール系化合物を合計で０．０１〜１０質量％添加する添加工程と、硫黄系化合物を含むスラリーの固形分濃度を０．１〜９５質量％に調整するスラリー濃度調整工程と、を有する、硫黄系組成物の製造方法を提供する。【選択図】なし
METHOD FOR PRODUCING SULFUR-BASED COMPOSITION AND CEMENT COMPOSITION, SYSTEM FOR PRODUCING CEMENT COMPOSITION, AND CEMENT-BASED SOLIDIFYING MATERIAL
To provide a method for simply and stably producing a sulfur-based composition having an effective reduction effect for suppressing elution of hexavalent chromium.SOLUTION: A method for producing a sulfur-based composition includes: a production step of producing a gas containing sulfurous acid gas and/or hydrogen sulfide; a slurry preparation step of absorbing the sulfurous acid gas and/or hydrogen sulfide contained in the gas into a raw material slurry to obtain a slurry containing sulfur-based compounds; an addition step of adding 0.01 to 10 mass% of glycol-based compounds in total to the raw material slurry and/or the slurry containing the sulfur-based compounds on the basis of a solid content contained in the raw material slurry; and a slurry concentration adjustment step of adjusting the solid content concentration of the slurry containing the sulfur-based compounds to 0.1 to 95 mass%.SELECTED DRAWING: None
【課題】六価クロムの溶出低減に有効な還元効果を有する硫黄系組成物を、簡便に且つ安定的に製造することが可能な製造方法を提供する。【解決手段】亜硫酸ガス及び／又は硫化水素を含むガスを生成する製造工程と、該ガスに含まれる亜硫酸ガス及び／又は硫化水素を原料スラリーに吸収させて硫黄系化合物を含むスラリーを得るスラリー調製工程と、原料スラリー及び／又は硫黄系化合物を含むスラリーに、原料スラリーに含まれる固形分を基準として、グリコール系化合物を合計で０．０１〜１０質量％添加する添加工程と、硫黄系化合物を含むスラリーの固形分濃度を０．１〜９５質量％に調整するスラリー濃度調整工程と、を有する、硫黄系組成物の製造方法を提供する。【選択図】なし
METHOD FOR PRODUCING SULFUR-BASED COMPOSITION AND CEMENT COMPOSITION, SYSTEM FOR PRODUCING CEMENT COMPOSITION, AND CEMENT-BASED SOLIDIFYING MATERIAL
硫黄系組成物及びセメント組成物の製造方法、セメント組成物の製造システム、並びにセメント系固化材
SAKAI TETSUHIRO (Autor:in) / ITO TAKAYASU (Autor:in) / NAGOSHI YOSHIYUKI (Autor:in)
02.08.2021
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
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
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