Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a method for preparing a needle-rod-shaped calcium carbonate crystal form by utilizing microbial mineralization, which comprises the following steps of: enabling a bacillus pasteurii solution to pass through a tubular container from bottom to top at the flow speed of 2-5ml/min, and completely infiltrating a mineralized matrix material by the bacillus pasteurii solution; the consolidation liquid is pumped into the mineralization base material from top to bottom at the speed of 0.02 ml/min to 0.05 ml/min, and aragonite type calcium carbonate is generated in the process; the consolidation liquid comprises magnesium chloride, calcium acetate and urea; wherein the concentration of magnesium chloride in the consolidation liquid is 0.5-0.75 M, the concentration of calcium acetate in the consolidation liquid is 0.5-0.75 M, and the concentration of urea in the consolidation liquid is 0.5-0.75 M; and putting the treated mineralized matrix material into a drying oven for drying, and separating to obtain the calcium carbonate aragonite. The problems that in the process of inducing calcium carbonate through microorganisms, the aragonite crystal form is difficult to control, and aragonite type calcium carbonate is easily converted into calcite type calcium carbonate are solved.
本发明为一种利用微生物矿化制备针棒状碳酸钙晶型的方法，所述方法的过程是：将巴氏芽孢杆菌溶液从下至上以2～5ml/min的流速通过管状容器，巴氏芽孢杆菌溶液将矿化基体材料全部浸润；将固结液以0.02～0.05ml/min从上到下泵送到矿化基体材料中，文石型的碳酸钙在此过程中产生；所述固结液包括氯化镁、醋酸钙和尿素；其中固结液中氯化镁的浓度为0.5～0.75M，醋酸钙的浓度为0.5～0.75M，尿素的浓度为0.5～0.75M；将处理后的矿化基体材料放入烘箱中烘干、分离，获得碳酸钙文石。解决在利用微生物诱导碳酸钙过程中存在的文石晶型控制难，文石型碳酸钙易转变为方解石型碳酸钙的问题。
The invention relates to a method for preparing a needle-rod-shaped calcium carbonate crystal form by utilizing microbial mineralization, which comprises the following steps of: enabling a bacillus pasteurii solution to pass through a tubular container from bottom to top at the flow speed of 2-5ml/min, and completely infiltrating a mineralized matrix material by the bacillus pasteurii solution; the consolidation liquid is pumped into the mineralization base material from top to bottom at the speed of 0.02 ml/min to 0.05 ml/min, and aragonite type calcium carbonate is generated in the process; the consolidation liquid comprises magnesium chloride, calcium acetate and urea; wherein the concentration of magnesium chloride in the consolidation liquid is 0.5-0.75 M, the concentration of calcium acetate in the consolidation liquid is 0.5-0.75 M, and the concentration of urea in the consolidation liquid is 0.5-0.75 M; and putting the treated mineralized matrix material into a drying oven for drying, and separating to obtain the calcium carbonate aragonite. The problems that in the process of inducing calcium carbonate through microorganisms, the aragonite crystal form is difficult to control, and aragonite type calcium carbonate is easily converted into calcite type calcium carbonate are solved.
本发明为一种利用微生物矿化制备针棒状碳酸钙晶型的方法，所述方法的过程是：将巴氏芽孢杆菌溶液从下至上以2～5ml/min的流速通过管状容器，巴氏芽孢杆菌溶液将矿化基体材料全部浸润；将固结液以0.02～0.05ml/min从上到下泵送到矿化基体材料中，文石型的碳酸钙在此过程中产生；所述固结液包括氯化镁、醋酸钙和尿素；其中固结液中氯化镁的浓度为0.5～0.75M，醋酸钙的浓度为0.5～0.75M，尿素的浓度为0.5～0.75M；将处理后的矿化基体材料放入烘箱中烘干、分离，获得碳酸钙文石。解决在利用微生物诱导碳酸钙过程中存在的文石晶型控制难，文石型碳酸钙易转变为方解石型碳酸钙的问题。
Method for preparing needle-rod-shaped calcium carbonate crystal form by utilizing microbial mineralization
一种利用微生物矿化制备针棒状碳酸钙晶型的方法
14.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C12P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
,
Gärungsverfahren oder Verfahren unter Verwendung von Enzymen zur gezielten Synthese von chemischen Verbindungen oder Zusammensetzungen oder zur Trennung optischer Isomerer aus einer racemischen Mischung
/
C04B
Kalk
,
LIME
/
C12R
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C-C12Q, RELATING TO MICROORGANISMS
,
Index-Schema in Verbindung mit den Unterklassen C12C-C12Q, bezüglich Mikroorganismen
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