Chat online
Discreption of? vermiculite??
?
?
??1, Introduction of the vermiculite
Vermiculite,?chemical?formula?M?g?×?(H2O)?[Mg3?×?(AlSiO3O10)?(H2O)],?is?a?magnesium?water?inclouded?aluminum?silicate?secondary?metamorphic?minerals?of?layered
structure.?It?likes?mica?in?form,?and?usually?come?from?weathered?or?hydrothermal?alterated?black?(gold?)?Mica.?It?will?present?a?deflection?shape?after?heat?expansion?and
water?loss,?liking?a?leech?pattern?in?form?,so?it?gets?the?name?vermiculite .
?
?
2,?Size of?the?vermiculite?
?
? ? ? Raw?vermiculite ? | Siver?vermiculite: 0.3-1mm1-2mm2-4mm3-6mm4-8mm |
Golden?vermiculite: 0-30um0.3-0.6mm0.65-1mm0.3-1mm0.5-1.5mm0.5-1.2mm1.2-3.5mm 1.5-2.5mm1-2mm2-4mm3-6mm3.5-7mm,etc | |
? ? ? ? ?Expanded?vermiculite ? ? | Silver?vermiculite: 0.3-1mm1-3mm2-4mm3-6mm4-8mm20-325mesh |
Golden?vermiculite: 0.3-0.6mm0.65-1mm0.3-1mm1-3mm2-4mm3-5mm4-8mm 20-325mesh |
?
?
3,Application?of?the?vermiculite?
?
1>.Construction?:lightwight?material?,light?aggregate?concrete?,heat-resisting?material,wall?material,bora?firproofing?,fire?mortar,fireproofing?tile
?
2>.Heat?preservation?and?insulation:sound-absorbing?material,surken?pipe?,greenhouse?pipe?,heat?preservation?material?,in-built?material?indoor?and?tunnel?,wall?of?public?and?ceiling
?
3>.Metallurgy?:clad?material?in?steel,ironmaking?,foundry,bulk?material?of?vermiculite
?
4>.Horticulture?:lawn?of?golf,seed?preservation?agent,soil?conditioner?,wetting?agent,plant?growth?substance,feed?additive
?
5>.Fishing?industry?of?ocean?:bait
?
6>.Others?:adsorbent?,filter?aid,active?carrier?of?chemicals?and?fertilizer,sewage?disposal,oil?adsorption?of?oceanmcigarette?filters,regulate?density?od?explosive
?
?
4,Physical and chemical?of?the?vermiculite?
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | PH |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
?
?
Origin?of?golden?vermiculite | Hebei,China | Origin?of?silver?vermiculite | Xinjiang,China |
Melting??point | 1320°C-1370°C | Asbestos | None |
Hardness | 1-1.5 | PH | 7-11 |
Solubility | Insolubility?(most?liquid?) | Combustibility | Non-combustible |
Reactivity | Non?reactive?(except?in?very?stong?acids) | Corrosion?resistance | Alkali-resistant |
?
?
?
?
5,Features?of?the?vermiculite?
1).?Physical?appearance
Vermiculite?refers?to?a?small?group?of?minerals?resembling?the?lamella?structure?of?the?micas.It?is?dark?gray?brown?to?golden?brown?in?color?and?flake-shaped?when?dry. When?heated?to?intense?temperatures?vermiculite?expands?in?volume?and?its?lamellae?separate,and?thus?exfoliate
2).?Moisture?retention
The?space?created?by?exfoliation?trap?moisture.Ideal?for?horticultural?applications,?vermiculite?has?the?capacity?to?retain?several?times?its?weight?in?water.
3).?Air?circulation
Vermiculite?flakes?are?irregular?in?shape?allowing?better?air?circulation?when?exfoliated,?.Widely?used?in?horticulture?to?aerate?soil?mixes?or?for?hydroponic?cultures.
4).?Low?density
Exfoliation?cause?a?great?increase?in?volume?without?an?increase?in?mass.Being?extremely?lightweight,vermiculite?is?an?ideal?material?to?lighten?aggregates?such?as?
concrete,plaster,and?asphalt,and?to?fill?walls?and?partitions?Inert?and?neutral?PH:8-11
?
?
?
?
???
??
?
?
?
?| Packing | IN 1/1.2ton / 100L, around 2200 lbs jumbo bag for shipment or as customer's request, normally 20-22tons/20'ft container. |
| Shiping | Within 7-15 days after geting the deposit |
?
?
?
1.?We?could?offer?good?service.
2.?We?could?offer?you?competitive price?. 3.?We?could?provide?professional?service?according?to?formular?and?your?application,?Customer?tailored?Spec?is?available.
4, We?could?offer?SGS?inspection?as?well?as?other?international?inspection?department.
?
?
?
DFL?Minmet?Refractories?Corp.?China,?is?located?in?the?centre?of?Ring?Bohai?Economy?Zone,which?will?will?fly?up?after?Changjiang?Triangle?Economy?Developement?Zone?and?Zhuhai?Triangle?Economy?Development?Zone,one?of?the?mordern?industrial?production?base,?also?the?international?logistic?center?of?North-east?Asia? Shijiazhuang?City .DFL?is?a?comprehensive?company?based?on?production?and?trade?business.
?
We?mainly?focus?on?the?nonmentalic?minerals.?We?are?the?only?diretor?company?of?the?TVA?in?Asia,running?ISO-9001-2008?quality?management?system. Our products mainly inclued vermiculite, cenosphere, perlite, pp fiber, pumice, kaolin, mica etc., If you have any interested in our products, welcome to contact us.
?
?
?
?
?
