Document reR721jNpoEZbQe4wywJqyL5e
Cyprus Industrial Minerals Company
Mistron Vapor for the Papermaker
CAM-194
ITA-LG 00323
Mistron Vapor: the
Industry Standard for Pitch Control
Typical Properties of
Mistron Vapor
Phy3ical Properties
G.E. Brightness o/o of MgO Relractrve Index Surface Area m2lS (8ET,N.) Valley Abraston mg
Residue% + 325 mesh
pH of I 0o,o slurry Specrtrc Gravrty Hardness Moh s Moislure %
Particl Siue Distribution
ob l\,4rnus 20rr f,t
0,6 Mrnus 1 0r? N,1
% Mrnus 5rl M
I^j6%
Mrnus 2r, Nt
Mrnus lt. 1,4
-96 Mrnus0.srl r,,1 Medran Partrcle Srze u
Whenever a paflicularly efiective concept comes into general use in lhe
pulp and paper industry, there are soon many competitive malerials introduced which claim to achieve the same results.
Mistron Vapor, manufactured by Cyprus Industrial Minerals Company, has been imitated. This brochure presents comparative data between Mistron Vapor and the competitjve materials in terms o{ pitch adsorption capacity. The system used to obtain this data utilized techniques developed by Dr. L.H. Allen of the Pulp and Paper Besearch Institute of Canada and D.A. Hughes of Diamond Inlernational Corporation of Middletown, Ohio.
Suspensions of synthetic pitch were made up and adjusted to be equal in solids to 7000 gallons/ton of fibre and having a pilch count of 75, using ihe PPRIC pitch particle count technique. Increments ol lhe adsorotive minerals were added at the rate of 0.10lo by weight based on the fibre. uo to a total addition level of 0.70lo. Following each incremental addition, a pitch count was taken for each mineral. The most effective range for comparison was in the 4 lb. to 6 lb./
Mistron Vapor 85+ 1.57 17 15-25 o.oo1
9.(}9.5 2,4
1.O <1 .O
7\ton level of usage. The graph showing
the relative effecliveness will be found
t
on the opposite page.
As you can see, Mistron Vapor is more effective than any competitive material. In fact, Mistron Vapor is as much as twice as efficient as the Cyclosorb at a 6 lb./ton addition level. Other advantages of Mistron Vapor are ils high brightness, purity and low abrasiveness.
Based upon X-ray diffraction lechnioues. asbestos minerals have not been detected in Mistron Vapor; Pfizer MP 1252,VerIal PC and Steelley SelecfA-Sorb. Using the same techniques, asbestos has been detected in Cyclosorb products
manufactured from Calilornia talcs.
It should be noted that the amounl of pitch adsorbed is almost directly comparable to the organophilic
f,surface area. Mistron Vapor has a
16-18m'?/g surface area while the competitive materials have surface areas of only 4.2-12m2/ gm.
We would be pleased lo demonstrate
the use of these measurement techniques while analyzing your paper
and/or pulp mill system. We will assisl your staff in controlling pilch problems in your planl ulilizing Mistron Vapor. We will also be pleased to teach any of your personnel the use of these methods to enable you lo fine{une your Mistron Vapor usage according lo your needs during lhe changing
seasons.
100 97 92 65 30
7
1.5
Mineral Analyse3 Both MISTRON VAPOR FORMS
AOcTVDhasaoulbllaqocoernfmtsl3tzeNterots.Se4s'5lge1ONiMCOM,,lag4r,o"Sq.nMrAOgCe)l,r,roCOaH1,Qlf-,s3Osror-N, o4nHe- 2ODoe-Ttsractc<9eo18o2d9'6
ITA-LG 00324
'.\i
iilr:':i
if !'.'ii'
Talc magnilied 250,000 times
COMPAFATIVE REDUCTION IN PITCH COUNT
9o Removal ot Pitch Particles
This electrcn photomicrcgrcPh shows lhe layq structurc ot MISTRON VAPOB.
The individual layeB arc delaminatect
as shown by ?he platelets to the ghl and
ot the booklet in the centet ot tha picturc.
You w l note that the booklel is alrcady displaced in position bY the lluid enercy
milling and will thus be dispe6ed into individual platelets by th.e action ol
10
2
D^r, F.r r r,T^n
ITA-LG 00325
fMistron Vapor:
tine alsoln addition to being markeled as a
Compacled Mistron Vapor is
\fpowder, MistronVaporisavailablein available in bulk and semFbulk bags.
area compacted form. Both forms
The semFbulk bags contain
oremade from the same high purity
approximately 1 ton. This packaging
size.and ground to the same parlicle isThe compaction of M istron Vapor themerely an additional step in
method is especially adaptable to continuous dispersion and application
systems.
process. Both materials disperse and
retain in the sheet al the same oarticle
hassize. Compacted Mistron Vapor
The bags of Mistron Vapor are
aboul 600/o less bulk and is designed assembled on liberboard pallels for
to promote easier, more dusl-free
:handling.
Pac kas i n g
easy handllng at no extra cost. Wooden pallets are available at an
::: X,T? ;::J.t:1"i[3':fl"if':?:
Mistron Vapor is packaged in 50 lb. isbags. The standard package unbleached kraft multiwall bags; arehowever, white repulpable bags theavailable for those who wish to add Mistron Vapor directly to the
fit individual shipping needs. Whenever possrble, a movable dunnage freight car is used for shipping, Mistron Vapor is also
available unpalletized, accordrng to receiving needs of the individual
customer.
hydrapulper.
\
(i
Gyprus Industrial Minerals Company
Talc Division 555 Soulh Flower Streel Los Angeles, California 90071 Telephone (21 3) 489-3700
ITA-LG 00326
TYPICAL DATA SFIE ET
Cyprus Industrial Minerals Company
.555 Sourh Ftowor Srreer Los An9#:coaril3li?" toorr . rdphone (213) a39r376
MISTRON VAPOR
MISTRON VAPOR is a high purity, asbestos-free, natural magnesium silicate pigment. Thc surfaccs of
its ultra-fine, platy particles have a strong affinity for many lypes oforganic moleculcs and, convcrscly, a strong hydrophobicity. However, in aqueous systems cxcellent wctting may be achieved by usc of propcr surface active agents.
Major uses of MISTRON VAPOR are as a white reinforcing filler and processing aid in elastomcrs and plastics, as a rheological control agent in liquid resins, plastisols, adhesives, and as a scavengcr of unwanted organic matter from water slurries, for example the control of undesirable pitch build-up during paper production
CHEMICAL ANALYSIS
Percent
Mgo sio"
31
62
CaO
Al.o,
1
traco
K,,O
Fe,O,
Tio"
1
Loss on Ignition:
Co. \ Chemicalty
H,O J Combined
Pb sb As cd Hg Se4
Parrs Per Million not dotoctod not dotocted not dtectod o.5
O.02
Ba (waler 1 ,5
soluble)
MINERAL ANALYSIS
Talc (3MgO-4SiO.-H"O) Chlorite (5 MgO-ALO.-3SiO,-4H.O) Dolomire ([CaMgl CO.)
Porcent
'j 2
Quartz Asbestos-tvDe minerals
1
not dctoctod
Brightnes, 7o (relative to MgO). General Electric Luminous (green filter)
Apparent Density, lb/ft3: Loos (Scon Volumeter) Tapped (Numinco) COMPACTED
Specific gravity Acid Solubles, 7o (as CaO)
PHYSICAL PROPERTIES
85+ 88+
6 13 50 2.8
1
Oil absorption, g/ l00g talc:
Spatula rub-out ASTM D28l
46
Gardner-Coleman ASTM Dl4E3 80
Surface arca, m'lg (N,BET)
l7
Hegman fineness ofgrind
6V.-G
%Adsorbcd moisture,
O,2
pH (l:5 dilution)
I
Refractivc index
1.6
Valley abrasion, mg max.
20
PARTICLE SIZE DISTRIBUTION
I f0trr! | a
la I a t a I I
t !.t 0t0J !.r
alirlEr tttt||al. allrftti tmot'
% minus 200 mesh, 74 pn
% minus 325 mesh, 44 pm
% minus
20 pm
% minus % minus % minus % minus
l0 pm
5p-
2pn
lpm
7o minus
0.5 pm
Median particlc size, pm
too too
100 97 92 65 30 7
1Yz
ITA-LG 00327