active zinc oxide

Product Overview

Description

zinc oxide adhesive tape

Indirect method. Reaction equation: 2Zn+O2=2ZnO
Operation method: the zinc ingot obtained by the electrolysis method is heated to 600-700 ° C for melting, placed in a high temperature resistant crucible, and melted and vaporized at a temperature of 1250 to 1300 ° C, and introduced into hot air for oxidation, and the generated zinc oxide is cooled. The cyclone is separated, and the fine particles are collected by a bag to obtain a finished zinc oxide.
Direct method. Reaction equation:
C+O2=CO2
CO2+C=2CO
ZnO+CO=Zn(vapor)+CO2
Zn (vapor) + CO + O2 = ZnO + CO2
Method of operation: The calcined zinc ore powder (or zinc-containing material) is blended with anthracite (or coke) and limestone at a ratio of 1:0.5:0.05 to form a ball. After reduction and smelting at 1300 °C, zinc oxide in the ore powder is reduced to zinc vapor, and then oxidized by air, and the generated zinc oxide is collected to obtain a finished zinc oxide product.

 

Chemical substances	zinc oxide(ZnO)
Appearance	white powder
Packing	25kg woven bag, 1000kg sack
Main features	Adopt advance ammoniation method and calcination method, it is white powder, stable in room temperature, has good hiding power and tinting power.
Range of application	printing & dyeing, rubber, coatings, pharmacy, printing ink, cables, electronics, coinage, enamel, match, chemical engineering, cosmetics, phosphorization liquid, electronics laser material, phosphor, catalysts, manufacture of magnetic materials etc..

 

 

NO.	Item	Unit	Index
1	Zinc oxide ZnO(dry)	%≥	99.7
2	Metal zinc Zn (Metal)	%	0
3	Lead oxide Pbo	%≤	0.01
4	Oxide of manganese (Mn)	%≤	0.0001
5	Cupric oxide (Cu)	%≤	0.0002
6	Hcl insolubles	%≤	0.006
7	Loss on ignition	%≤	0.10
8	Residue on sieve(45um mesh)	%≤	0.10
9	Water solubles	%≤	0.10
10	105 °C volatile matter	%≤	0.30