“Engel process”的概念、定义、翻译、参考文献-科学参考

Engel process

Chemical Engineering

A process invented in the nineteenth century for the production of potassium carbonate from potassium chloride. The process has two steps and first involves the production of soluble salt MgKH(CO₃)₂.4H₂O, known as Engel’s salt, using carbon dioxide which is passed through a suspension of magnesium carbonate in aqueous chloride. This is followed by its decomposition by hot water and magnesia to form the product and insoluble hydrated magnesium carbonate:
$\begin{array}{l} 3 M g C O_{3} + 2 K C l + C O_{2} + 5 H_{2} O \to 2 M g K H {(C O_{3})}_{2} .4 H_{2} O + M g C l_{2} \\ 2 M g K H {(C O_{3})}_{2} .4 H_{2} O + M g O \to 3 M g C O_{3} .3 H_{2} O + K_{2} C O_{3} \end{array}$

There were several variations of this process but it was abandoned in the 1930s for economic reasons.

单词	Engel process
释义	Engel process Chemical Engineering A process invented in the nineteenth century for the production of potassium carbonate from potassium chloride. The process has two steps and first involves the production of soluble salt MgKH(CO₃)₂.4H₂O, known as Engel’s salt, using carbon dioxide which is passed through a suspension of magnesium carbonate in aqueous chloride. This is followed by its decomposition by hot water and magnesia to form the product and insoluble hydrated magnesium carbonate: $\begin{array}{l} 3 M g C O_{3} + 2 K C l + C O_{2} + 5 H_{2} O \to 2 M g K H {(C O_{3})}_{2} .4 H_{2} O + M g C l_{2} \\ 2 M g K H {(C O_{3})}_{2} .4 H_{2} O + M g O \to 3 M g C O_{3} .3 H_{2} O + K_{2} C O_{3} \end{array}$ There were several variations of this process but it was abandoned in the 1930s for economic reasons.
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