Preparation method and application of caustic soda

A technology of caustic soda and refined table salt is applied in the field of sodium hydroxide preparation to achieve the effects of improving preparation concentration and purity and ensuring preparation effect
CN111170334AInactive Publication Date: 2020-05-19苏州慧伯凯化工有限公司
0 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州慧伯凯化工有限公司
Publication Date
2020-05-19
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention belongs to the technical field of sodium hydroxide preparation, and particularly relates to a preparation method and application of caustic soda. The preparation method and application of caustic soda comprise the following steps of: S1, weighing raw materials, S2, dissolving the raw materials, namely dissolving the refined edible salt in distilled water to prepare saturated edible salt water, adding ammonium bicarbonate to prepare fresh sodium bicarbonate when edible salt crystals are separated out from the bottom, filtering out sodium bicarbonate, and adding quick lime into water to generate fresh calcium hydroxide, S3, standing the raw materials, and S4, liquid separation. Calcium hydroxide and sodium bicarbonate are mixed to generate sodium hydroxide; while production andpreparation of sodium hydroxide are guaranteed, auxiliary products and ammonium chloride can be used for chemical fertilizer production and artificial stone preparation of calcium carbonate, and whenfreshness and deterioration prevention of the raw materials are guaranteed, the preparation concentration and the purity of sodium hydroxide are improved, residual impurities of other solutions are avoided, and the preparation effect is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of sodium hydroxide preparation, in particular to a preparation method and application of caustic soda. Background technique

[0002] Sodium hydroxide is called caustic alkali and caustic alkali. It is a white crystal at room temperature. This product is strongly irritating and corrosive. Dust or smoke can irritate the eyes and respiratory tract, corrode the nasal septum, direct contact of the skin and eyes with sodium hydroxide can cause burns, and ingestion can cause burns of the digestive tract, mucosal erosion, hemorrhage and shock. It is widely used in production and life. The production of sodium hydroxide is mainly divided into laboratory production methods and industrial production methods. In the industrial production method, the method of electrolysis of saturated salt water is often used for preparation, but there are chlorine and hydrogen in the product, which leads to potential safety hazards i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More