Description
Yuanying silica gel does not dissolve in water, any solvents,
non-toxic tasteless, not burning. It has stable chemical
properties, does not react with any material except strong alkali,
hydrofluoric acid. It has open porous structure, high adsorption
properties, good thermal stability, stable chemical properties,
high mechanical strength, etc.
Added dilute sulfuric acid (hydrochloric acid) into the aqueous
solution of sodium silicate and let standing, thus becoming solid
aqueous silicate gel. Used water washing to remove Na+ and SO4 *-
(Cl-) ions dissolved in the electrolyte, after drying it is silica
gel. Different manufacturing methods form different microporous
structure, different microporous structure form different models,
such as macroporous silica gel, silochrom (type C), type B silica
gel, fine-pored silica gel (type A).
There are type A silica gel, type B silica gel, type C silica gel,
silica gel cat litter, silica alumina gel, blue silica gel, orange
silica gel, FNG silica gel, pressure-changing adsorption silica
gel
Type A Silica Gel
Silica gel is transparent or ivory-white granular solid, main
ingredients are amorphous silica. Silica gel does not dissolve in
water and any solvents, non-toxic tasteless, not burning. Silica
gel hasstable chemical properties, does not react with any material
except the strong alkali, hydrofluoric acid. Silica gel has open
porous structure, high adsorption properties, good thermal
stability, stable chemical properties, high mechanical strength,
etc.
Silica gel used for gas drying, gas absorption, liquid dehydration,
chromatography, catalysts, etc.
Regeneration temperature
Silica gel can be removed moisture by the way of thermal
desorption, desorption temperatures as follows:
Type C silica gel≤**0℃
Type A silica gel≤**0℃
Allochroic silica gel≤**0℃
Silica alumina gel≤**0℃
Mainly used for drying and moistureproof, may also be used as
catalyst carriers, adsorbents, separators and variable pressure
adsorbents, etc.
Type B Silica Gel
Type B silica gel pore structure is between silochrom and
fine-pored silica gel.
Mainly used for liquid absorbent, humidity regulator, desiccant,
catalyst, catalyst carrier, spices carrier, silica sand, pet
bedding, whitening agent and used as the raw material of
chromatography silica gel and other fine chemical products.
Type C Silica Gel
Type C silica gel also called silochrom
This product is a raw material for preparation of silica sand,
after drying and screening can form silochrom, used as desiccant,
adsorbent and catalyst carrier. It can be used for drug
purification, removal organic acid and polymer from insulating oil,
adsorption high molecular protein in industrial fermentation
process, adsorption harmful elements in water, gas dehydration,
goods moisture-proof rust prevention, pet packing and so on.
