Preparation method of activator

Abstract

The invention provides a preparation method of an activator, which comprises pickling zinc ore, washing with water, adding hydrochloric acid, adding zinc block, filtering, heating, evaporating and concentrating, cooling and crystallizing and filtering, adding water to dissolve the washed crystal, evaporating and crystallizing, washing and drying to obtain a finished product . The method is simple and practical, has low manufacturing cost, and is suitable for mass production of the product.

Description

technical field

[0001] The invention belongs to the field of chemical industry, in particular to a preparation method of an activator. Background technique

[0002] Zinc chloride is one of the important products in the inorganic salt industry, and it has a wide range of applications. Zinc chloride is easily soluble in water, soluble in methanol, ethanol, glycerin, acetone, ether, insoluble in liquid ammonia. Strong deliquescence, can absorb moisture from the air and deliquescence. Has the property of dissolving metal oxides and cellulose. Molten zinc chloride has good electrical conductivity. Thick white smoke is generated when hot. Zinc chloride is corrosive and toxic. The traditional preparation method is to add hydrochloric acid to zinc oxide for evaporation, concentration and crystallization, but such a process has high cost and is not suitable for mass production. Contents of the invention

[0003] In order to overcome the above problems, the present invention p...

Examples

Embodiment example 1

[0015] refer to figure 1 , the preparation method of a kind of activator of the present invention comprises the following steps:

[0016] 1. Clean the zinc ore

[0017] Put one part of zinc ore in a container, wash its surface with 0.1 part of hydrochloric acid, and then wash the zinc ore with distilled water for 2 to 3 times.

[0018] 2. Preparation of zinc chloride solution

[0019] Put the solid obtained in step 1 into a container, add 1.7 parts of 3mol / L propylene hydrochloride and keep stirring.

[0020] The reaction equation is: ZnO+2HCl==ZnCl2+H2O

[0021] 3 Remove impurities

[0022] Add 0.15 parts of zinc nuggets to the resulting solution and stir continuously. When the size of the zinc nuggets no longer changes, stop stirring and filter, discard the filter residue, and use the filtrate for later use.

[0023] 4 Preparation of finished products

[0024] Heat, evaporate and concentrate the filtered filtrate, stop heating when a clear crystal film appears on the s...

technical field

[0001] The invention belongs to the field of chemical industry, in particular to a preparation method of an activator. Background technique

[0002] Zinc chloride is one of the important products in the inorganic salt industry, and it has a wide range of applications. Zinc chloride is easily soluble in water, soluble in methanol, ethanol, glycerin, acetone, ether, insoluble in liquid ammonia. Strong deliquescence, can absorb moisture from the air and deliquescence. Has the property of dissolving metal oxides and cellulose. Molten zinc chloride has good electrical conductivity. Thick white smoke is generated when hot. Zinc chloride is corrosive and toxic. The traditional preparation method is to add hydrochloric acid to zinc oxide for evaporation, concentration and crystallization, but such a process has high cost and is not suitable for mass production. Contents of the invention

[0003] In order to overcome the above problems, the present invention p...

Examples

Embodiment example 1

[0015] refer to figure 1 , the preparation method of a kind of activator of the present invention comprises the following steps:

[0016] 1. Clean the zinc ore

[0017] Put one part of zinc ore in a container, wash its surface with 0.1 part of hydrochloric acid, and then wash the zinc ore with distilled water for 2 to 3 times.

[0018] 2. Preparation of zinc chloride solution

[0019] Put the solid obtained in step 1 into a container, add 1.7 parts of 3mol / L propylene hydrochloride and keep stirring.

[0020] The reaction equation is: ZnO+2HCl==ZnCl2+H2O

[0021] 3 Remove impurities

[0022] Add 0.15 parts of zinc nuggets to the resulting solution and stir continuously. When the size of the zinc nuggets no longer changes, stop stirring and filter, discard the filter residue, and use the filtrate for later use.

[0023] 4 Preparation of finished products

[0024] Heat, evaporate and concentrate the filtered filtrate, stop heating when a clear crystal film appears on the s...

Images