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Method for preparing hexagonal flaky flame-retardant magnesium hydroxide from natural hydromagnesite
The invention discloses a method for preparing hexagonal flaky flame-retardant magnesium hydroxide from natural hydromagnesite. The method comprises the following steps of S1, crushing and screening the natural hydromagnesite, S2, calcining the crushed and screened natural hydromagnesite to obtain active magnesium oxide, S3, screening the active magnesium oxide, S4, preparing a magnesium oxide suspension by taking active magnesium oxide as a raw material and deionized water as a solvent, S5, putting the magnesium oxide suspension into a closed heating device for heating reaction to obtain a solution, and S6, taking out the solution, naturally cooling to room temperature to obtain a product, and filtering, washing and drying the product to obtain the hexagonal flaky magnesium hydroxide. The hexagonal flaky flame-retardant magnesium hydroxide with good dispersity and regular morphology can be obtained without adding any other raw materials or auxiliaries in the process of the method, and the method has the advantages of low raw material cost, simplicity in operation, high product purity and the like.
本发明公开了一种天然水菱镁制备六角片状阻燃型氢氧化镁的方法，包括以下步骤：S1、将天然水菱镁粉碎筛分；S2、将粉碎筛分的天然水菱镁煅烧得到活性氧化镁；S3、对活性氧化镁进行筛分；S4、以活性氧化镁为原料、去离子水为溶剂配置成氧化镁悬浮液；S5、将氧化镁悬浮液置入封闭式加热装置中进行加热反应得到溶液；S6、取出溶液自然冷却至室温得到产物，将产物进行过滤、洗涤、干燥，得到六角片状氢氧化镁。本发明方法过程中无需添加任何其他原料或助剂，即可得到分散性好、形貌规则的六角片状阻燃型氢氧化镁，具有原料成本低、操作简单、产物纯度高等优点。
Method for preparing hexagonal flaky flame-retardant magnesium hydroxide from natural hydromagnesite
The invention discloses a method for preparing hexagonal flaky flame-retardant magnesium hydroxide from natural hydromagnesite. The method comprises the following steps of S1, crushing and screening the natural hydromagnesite, S2, calcining the crushed and screened natural hydromagnesite to obtain active magnesium oxide, S3, screening the active magnesium oxide, S4, preparing a magnesium oxide suspension by taking active magnesium oxide as a raw material and deionized water as a solvent, S5, putting the magnesium oxide suspension into a closed heating device for heating reaction to obtain a solution, and S6, taking out the solution, naturally cooling to room temperature to obtain a product, and filtering, washing and drying the product to obtain the hexagonal flaky magnesium hydroxide. The hexagonal flaky flame-retardant magnesium hydroxide with good dispersity and regular morphology can be obtained without adding any other raw materials or auxiliaries in the process of the method, and the method has the advantages of low raw material cost, simplicity in operation, high product purity and the like.
本发明公开了一种天然水菱镁制备六角片状阻燃型氢氧化镁的方法，包括以下步骤：S1、将天然水菱镁粉碎筛分；S2、将粉碎筛分的天然水菱镁煅烧得到活性氧化镁；S3、对活性氧化镁进行筛分；S4、以活性氧化镁为原料、去离子水为溶剂配置成氧化镁悬浮液；S5、将氧化镁悬浮液置入封闭式加热装置中进行加热反应得到溶液；S6、取出溶液自然冷却至室温得到产物，将产物进行过滤、洗涤、干燥，得到六角片状氢氧化镁。本发明方法过程中无需添加任何其他原料或助剂，即可得到分散性好、形貌规则的六角片状阻燃型氢氧化镁，具有原料成本低、操作简单、产物纯度高等优点。
Method for preparing hexagonal flaky flame-retardant magnesium hydroxide from natural hydromagnesite
天然水菱镁制备六角片状阻燃型氢氧化镁的方法
LIU ZHIQI (author) / JIAO LINGLI (author) / ZHAO PENGCHENG (author) / DAI JIANGUO (author) / ZHOU ZIYUAN (author) / LI NA (author)
2021-10-26
Patent
Electronic Resource
Chinese
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
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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