Lithium hydroxide monohydrate production process, including the following steps:
(1) lithium sulfate solution made from spodumene by roasting, acidizing, pulping, leaching and initial concentration;
(2) Adding sodium hydroxide to lithium sulfate solution to obtain a mixture of sodium sulfate and lithium hydroxide solution;
Li2SO4+2NaOH →2LiOH+Na2S O4
(3) the mixed solution of sodium sulfate and lithium hydroxide is cooled and frozen, the solution temperature is reduced to 5~-10℃, and sodium sulfate is
separated after crystallization;
(4) The clear liquid separated by freezing, heating, evaporation and concentration;
(5), crystallization and centrifugal separation, lithium hydroxide crude product;
(6), in the crude product lithium hydroxide solution
Barium hydroxide is added to the solution to form insoluble barium sulfate, which is filtered to remove sediment and debris. The filtered solution is condensed,
crystallized and separated by evaporation to obtain wet monohydrate lithium hydroxide :Ba(0H)2+S042→BaS04+20H
(7) Dry to lithium hydroxide monohydrate.
Lithium hydroxide monohydrate (Li0HH20) is a polar compound formed by dissolving in water based on lithium hydroxide (Li0H) under specified conditions. It is…
A strong base (with a pH of 10 to 13) that is able to ionize and form a weak hydrogen bond with water to neutralize the base. Its chemical form is
Li0HH20, where Li0H is lithium hydroxide and H20 is the chemical formula for water.
The chemical properties of lithium hydroxide monohydrate are very complex, it has a strong force with some other small molecules, and can have a variety of
reactions. At room temperature, when
When lithium hydroxide monohydrate is dissolved in water, the oxygen atoms in water and the water molecules related to the hydrogen bond of water molecules
protect the oxygen atoms on the lithium hydroxide monohydrate molecules, thus promoting the ionization of lithium hydroxide and forming lithium hydroxide ions
and water ions, so that lithium hydroxide has good solubility. At the same time, lithium hydroxide monohydrate can also undergo simple reactions with other
molecules, thus forming complex compounds.
In addition, lithium hydroxide monohydrate also has antibacterial and insecticidal effects. The hydrogen ions of the lithium hydroxide monohydrate can come into
contact with the surface of the bacteria, thus blocking the fine
At the same time, the ion system in lithium hydroxide monohydrate can also prevent the development of pests, thus playing a role in inhibiting insect pests.
The application of lithium hydroxide monohydrate is also very extensive, it can be used to produce a lot of important raw materials, such as cleaning agents,
oxygen producers and so on. In addition, lithium hydroxide monohydrate
The compound can also be used to make batteries because it has stable charge-transfer properties that allow it to store and transfer electrical energy efficiently. In
addition, lithium hydroxide monohydrate can also be used to eliminate the oxidation and acidification of harmful substances, which can effectively combat air
pollution.
In short, lithium hydroxide monohydrate has both important physical properties and a wide range of applications, and can be said to be an important compound
that brings to modern society
Great convenience. Therefore, lithium hydroxide monohydrate has a special historical significance, and it is worth our in-depth research and development in order
to find new applications.
