Note s4
121 subscribers
329 photos
69 files
77 links
Download Telegram
Forwarded from Note s4
๐Ÿ”น ุดุจุงุจ ู‡ุงูŠ ูƒู„ ุงู„ุงุฑู‚ุงู… ุงู„ู„ูŠ ุชุฎุต ุฌุงุจุชุฑ ู…ูƒุณู†ูƒ

โ–ช๏ธPropeller / three most common

โ–ช๏ธTurbines /90 degrees angle to
their shaft ,1000 time more viscous than fluid in propeller

โ–ช๏ธPaddles /operated at low speed of 50 rpm or less

โ–ช๏ธVortexing / very high liquid viscoities >20,000

โ–ช๏ธAviscosity of monophase system Approximately / 10 poise

โ–ช๏ธHigh viscosity for polyphase system / 2 surface in close proximity

โ–ช๏ธRoller mills / three -roller type are preferred

โ–ช๏ธParticle size / miling of components below approximately 30 um

โ–ช๏ธTwin - shell blender / approximately 45 -degree angle
#mixing
Milling โฌ‡๏ธ๐Ÿ’•.


๐Ÿ’ ู„ุดู†ูˆ ุฃุตู†ู Milling equipmentุŸ
coarse, intermediate and fine ุญุณุจ ุญุฌู… ุงู„ุจุฑูˆุฏูƒุช ุงู„ู†ู‡ุงุฆูŠ

๐Ÿ’ ุดู„ูˆู† ุงุนุจุฑ ุนู† Size ุŸ ุจ ู…ุตุทู„ุญ mesh

๐Ÿ’ Hammer mill used for = granulation (16-mesh) + crystalline API to a 120- mesh powder).

๐Ÿ’ ุฎู„ูˆ ุจุงู„ูƒู… ูƒู„ู…ุง ุงู‚ู„ู„ ุงู„ุญุฌู… ุญุชุฒุฏุงุฏ ุงู„ู…ุณุงุญุฉ ุงู„ุณุทุญูŠุฉ ูˆู‡ุงู„ุดูŠ ูŠููŠุฏู†ูŠ ุจ Dissolution ุŒ ExtractionุŒ Drying

๐Ÿ’ compressed tablet by = wet granulation = sieving of the wet mass is done to ensure more rapid and uniform drying

๐Ÿ’ ุจุดู†ูˆ ุชุชุฃุซุฑ Flowability ุŸ
particle size and size distribution.

๐Ÿ’ freely flowing powders and granules = high-speed filling = produce a uniform product.

๐Ÿ’ ุดู„ูˆู† ุงูˆุญุฏ ุงู„ู„ูˆู† ู„ู„ Solid ูˆุงุถู…ู† ู…ูŠุตูŠุฑ mottled ุŸ
ุงุณูˆูŠ milled

๐Ÿ’ Lubricants = essential for fine particle size

๐Ÿ’ ุดู„ูˆู† ุงู‚ู„ู„ sedimentation rate ุจ suspensions and emulsions ุŸ
ุงุณูˆูŠ milling ุนู„ู…ูˆุฏ ุงู‚ู„ู„ ุญุฌู… ุงู„ุจุงุฑุชูƒู„

๐Ÿ’ milling of solid incorporated in ointments, creams, and pastes = mooth texture and better appearance

๐Ÿ’ Term irregular particle = quivalent sphere in mathematical

๐Ÿ’ Hookeโ€Ÿs law = initial linear = stress directly o strain

๐Ÿ’ Youngโ€Ÿs modulus = slope of the linear = expresses the stiffness or softness of a solid in dynes per square centimeter

๐Ÿ’ yield poin= nonlinear= measure of the resistance to permanent deformation

๐Ÿ’ irreversible= plastic deformation

๐Ÿ’ area under the curv= represents the energy and impact strength

๐Ÿ’ milling is = random matter

๐Ÿ’ size of the finer particle = related to the internal structure

๐Ÿ’ size of the larger particles= closely related to the process

๐Ÿ’ ุงุฐุง ุงู„ุทุญู† ู…ุงุนุจุฑ elastic ุญูŠุตูŠุฑ ูƒุณุฑ ุŸ
ู„ุง ูˆุฃูˆู„ ู…ุงุงุดูŠู„ ุงู„ุณุชุฑุณ ุญุชุฑุฌุน ุจุงุฑุชูƒู„ ู„ู†ูุณ ุดูƒู„ุฉ ูˆุงู„ุทุงู‚ุฉ ุงู„ูŠ ุณู„ุทุชู‡ุง ุญุชุทู„ุน ุน ุดูƒู„ ุญุฑุงุฑุฉ

๐Ÿ’ ูˆุงุฐุง ุนุจุฑ elasticุŸ
ุฑุงุญ ูŠุตูŠุฑ ูƒุณุฑ ูˆุงู„ุทุงู‚ุฉ ุงู„ูŠ ุณู„ุทุชู‡ุง ุน ุงู„ุงุณุทุญ ุงู„ุฌุฏูŠุฏุฉ ุญุชุทู„ุน ุน ุดูƒู„ stress energy

๐Ÿ’ ุฎู„ูˆ ุจุงู„ูƒู… milling ูŠุชู†ุงุณุจ ุทุฑุฏูŠ ูˆูŠ length of new cracks
ูˆุงู„ strain ูŠุชู†ุงุณุจ ุทุฑุฏูŠ ูˆูŠ length of the crack ุนู„ู…ูˆุฏ ูŠุณูˆูŠ ูƒุณุฑ

๐Ÿ’ ุดู„ูˆู† ุงุญูˆู„ ุงู„ูุทุฑ ู„ูƒุณุฑ ุŸ
surrounding residual strain energy to the crack

๐Ÿ’ Cutting(shearing) = application of force over a very narrow area = for fibrous materials

๐Ÿ’ Compression= pressure between the two surfaces

๐Ÿ’ Impact= fast moving part = causes creation of internal stresses in particles

๐Ÿ’ Attrition= by pressure as in compression and surfaces are moving

๐Ÿ’ ุดู†ูˆ ุงู‡ู… ุซู„ุงุซ ุดุบู„ุงุช ู„ุงุฒู… ุชุชูˆูุฑ ู…ู†ูˆ ุงุณูˆูŠ ุทุญู† ุŸ
feed chute ุŒ grinding mechanism ุŒ discharge chute

๐Ÿ’ open-circuit milling. = passing it once through the mill,


๐Ÿ’ closed circuit mill = passed through a size-separation device or classifier, and the oversize particles are returned to
the grinding chamber for further reduction of size.


๐Ÿ’ ุฅุฐุง ุฃุฑูŠุฏ fine and ultrafine ูŠุงุทุฑูŠู‚ุฉ ุงุณุชุฎุฏู… ุŸ Closed-circuit

ู‡ุณู‡ ุงู„ุงุฌู‡ุฒู‡


๐Ÿ’ Cutter Mill = mechanisms cutting or shearing = used for tough, fibrous materials

๐Ÿ’ ุดู†ูˆ ุงู„ู…ูŠูƒุงู†ุฒู… ู…ุงู„ ROLLER MILL ุŸ compression and shearing

๐Ÿ’ ุดู„ูˆู† ุชุดุชุบู„ rolls ุงู„ุซุงู†ูŠุฉ ุŸ by friction

๐Ÿ’ ู„ุดู†ูˆ ุชุณุชุฎุฏู… Roll ุŸ ุงุญูุธูˆู‡ุง ุจูƒู„ู…ุฉ sop ูŠุนู†ูŠ ointments, pastes and suspension

๐Ÿ’ ูŠุงู…ูŠูƒุงู†ูŠุฒู… ุขุณุชุฎุฏู… ุฅุฐุง ุฃุฑูŠุฏ ุงู‚ู„ู„ ุญุฌู… ุงู„ุจุงุฑุชูƒู„ ุจ roll ุŸ attrition

๐Ÿ’ Hammer Mill = mechanisms impact

๐Ÿ’ ู…ู†ูˆ ูŠุดุชุบู„ closed circuit ุŸ Hammer ุงูƒุซุฑ ุดูŠ ูˆ cutter

๐Ÿ’ ุนู„ุดู†ูˆ ูŠุนุชู…ุฏ ุชู‚ู„ูŠู„ ุญุฌู… ุงู„ุจุงุฑุชูƒู„ ุจุงู„ู‡ู…ุฑุŸ
milling tool selected , rotor speed , solid feed rate

๐Ÿ’ ุดู†ูˆ ุงู‡ู… processing ุจุงู„ู‡ู…ุฑ ุŸ
hammer tip speed and hammer mill screen size.

๐Ÿ’ ู…ู†ูˆ ูŠูˆู„ุฏ narrow size distribution ุŸ hammer mill

๐Ÿ’ ุดู„ูˆู† ุงุญุตู„ ุน ultrafine particles ุจุงู„ู‡ู…ุฑ ุŸ
ุงุณุชุฎุฏู… internal (build in) or external classification (added screen)

๐Ÿ’ ู…ู†ูˆ ูŠูƒูˆู† closed system ูˆุงุณุชุฎุฏู…ุฉ ูŠู‚ู„ู„ dust ูˆ explosion hazards ุŸ
hammer mill

Disadvantages ู…ุงู„ ู‡ู…ุฑ ู…ู‡ู…ุฉ ุดูˆููˆู‡ุง ๐Ÿ’ 


๐Ÿ’ ู…ู†ูˆ ูŠุดุชุบู„ ฺฏ grinding medium ุจ Ball Mill ุŸ
balls of steel or pebble

๐Ÿ’ ุดู„ูˆู† ุงุญู…ูŠ balls ุŸ covered with a coarse screen

๐Ÿ’ ุดู†ูˆ ู…ูŠูƒุงู†ูŠุฒู… ุงู„ูŠ ูŠุดุชุบู„ ุจูŠู‡ุง ball ุงุฐุง ุฌุงู† low speed ุŸ attrition
ูˆุงุฐุง ุฌุงู† high speed ุŸ impact ูˆู‡ูˆ ุงู„ู…ุณุคูˆู„ ุนู† ุชู‚ู„ูŠู„ ุงู„ุญุฌู… ู…ุงู„ ุจุงุฑุชูƒู„

๐Ÿ’ ุดู†ูˆ factor ุงู„ู…ู‡ู…ุฉ ุจ ball mill ุŸ speed of rotation ุงุฐุง ุฌุงู† ุนู†ุฏูŠ:
At low angular velocities = size reduction is minimal

At high angular velocities = by centrifugal force and no size reduction occurs

about two-thirds of the critical angula = combined effect and get good milling


๐Ÿ’ ู…ู†ูˆ ุงูƒุฏุฑ ุงุณุชุฎุฏู…ุฉ ู„ู„ explosive materials ูˆ ophthalmic susp. and parenter ุงู„ูŠ ูŠูƒูˆู† ุณุชุฑูŠู„ ุŸ ball mill
Milling โฌ‡๏ธ๐Ÿ’•


๐Ÿ’ Ball mill = used for wet and dry milling + used for batch and continuous

๐Ÿ’ ุดู†ูˆ ู…ูŠูƒุงู†ูŠุฒู… ู…ุงู„ Fluid-energyุŸ attrition
๐Ÿ’ ุดู„ูˆู† ูŠู…ุฑ ุงู„ู‡ูˆู‡ ุจ Fluid-energy ุŸ ู…ู† nozzles

๐Ÿ’ ุดู†ูˆ ู…ุดูƒู„ุฉ ุงูˆ ุฏุณุงุฏูุงู†ุชุฌ ู…ุงู„ Fluid-energyุŸ

Not suitable for soft, tacky and fibrous material + Expensive + build-up vanes or gas nozzles become plugged or blocked


FACTORS INFLUENCING MILLING


๐Ÿ’ Fibrous (Glycyrrhiza, Rauwolfia) = by cutting mill Pretreatment

๐Ÿ’ Friable materials (as dried filter cake, sucrose)= by attrition, impact, or compression Pretreatment

๐Ÿ’ more than 5% water = hinders comminution + produces sticky mass

๐Ÿ’ water greater than 50% = mass becomes a slurry, or fluid suspension = used wet milling

๐Ÿ’ Pigments (ocher and sienna) = change color if the milling temperature is excessive

๐Ÿ’ temperature high= for Unstable compounds and finely-powdered material ูŠุณูˆูŠ ุงู†ูุฌุงุงุงุงุงุงุฑ


๐Ÿ’ impact mill = produces irregular particles, which may not flow readily

๐Ÿ’ attrition mill = produces free-flowing spheroidal particles

๐Ÿ’ Milling may alter the crystalline structure and cause chemical change


ุงู„ุฑุทูˆุจุฉ ู…ู† ุชุฒูŠุฏ ูŠู‚ู„ู„ ุงู„ุทุญู† ูˆุญุณุจ ุดูƒุฏ ุงูƒูˆ ุฑุทูˆุจุฉ ุญูŠุฃุซุฑ ุนู„ูŠ


๐Ÿ’ polymorphism problem = used wet milling

TECHNIQUES OF MILLING



๐Ÿ’ Hygroscopic materials = milled in a closed system supplied with dehumidified air.

๐Ÿ’ Thermolabile, easily oxidizable, and combustible = milled in a closed system with an inert atmosphere of carbon dioxide or
nitrogen.

๐Ÿ’ Fine dust (dextrin, starch, sulfur) = potential explosive ๐Ÿงจ


๐Ÿ’ ุดู„ูˆู† ุฃุชุญูƒู… ุจุฏุฑุฌุฉ ุงู„ุญุฑุงุฑุฉ ุจุงู„ุทุญู† ุŸ
Used cooling jacket or heat exchanger.

๐Ÿ’ ุดู†ูˆ ู„ุงุฒู… ุงุณูˆูŠ ู„ู„ุดู…ุน ูˆุงู„ูŠ ุนุฏู‡ู… low melting point ู…ุซู„ beeswax and stearic acid ุŸ
ุงุจุฑุฏู‡ู… ู‚ุจู„ ู„ุงุงุทุญู† ูˆุงุฐุง ู‡ุงูŠ ุงุณุชุฎุฏู… ุซู„ุฌ


๐Ÿ’ ุดู†ูˆ ุงุณูˆูŠ ู„ู„ granules or intermediate sized particles ู‚ุจู„ ู„ุงุงุทุญู† ุŸ pre-sizing

๐Ÿ’ ุดู†ูˆ ุงุณูˆูŠ ู„ู„ fibrous materials ู‚ุจู„ ู„ุงุงุทุญู† ุŸ ุงุนุฑุถู‡ุง ู„ high pressure rolls ุงูˆ ุงุณุชุฎุฏู… cutters

๐Ÿ’ ุงุฐุง ุจุงุฑุชูƒู„ ุทู„ุนุช ุนู†ุฏูŠ ุฌุจูŠุฑู‡ ุดู†ูˆ ุงุณุชุฎุฏู… ุญุชู‰ ุฃุชุญูƒู… ุจูŠู‡ุง ูˆุงุถู…ู† ุชุทู„ุน ุตุบูŠุฑู‡ุŸ screening

๐Ÿ’ ู„ุดู†ูˆ ุงุณุชุฎุฏู… Wet grinding ุŸ ุญุชู‰ ุฃุชุฎู„ุต ู…ู† dust hazard ูˆุงุฐุง ุฌุงู† ุงู„ุจุฑูˆุฏูƒุช ูŠุชุฃุซุฑ ุจุงู„ู…ูŠ


๐Ÿ’ ุฅุฐุง ุฃุฑูŠุฏ ุจุงุฑุชูƒู„ ุญุฌู…ู‡ุง ุงู‚ู„ ู…ู† 40-mesh ุดู†ูˆ ุงุณุชุฎุฏู… ุŸ ball, roller, hammer, and fluid-energy mills

๐Ÿ’ measuring the size distribution = Sieving, sedimentation, and microscopy

ุงุฎุฑ ุตูุญุฉ ุดู„ูˆู† ุงุฎุชุงุฑ ู…ูƒูŠู†ุฉ ู…ุงู„ ุทุญู† ุฑุงุฌุนูˆู‡ุง
โœจโœจVolume of drugโœจโœจ

โœจIC 0.2ml ู…ูˆ ุงูƒุซุฑ
โœจSC 1ml ู…ูˆ ุงูƒุซุฑ
โœจIM more than 2ml
โœจIS less than 10 ml
โœจiv large volume
โœจiv infusion not less than 250 ml
โœจnot more than 20 ml by a syringe,

ุงู„ู…ุงุก ุฅุฐุง ุฑุฏู†ุง ู†ุณุชุฎุฏู…ุฉ ูƒ Vehicle ู„ุงุฒู… ุชูƒูˆู† ุจูŠู‡ ู‡ุงูŠ ุงู„ู…ูˆุงุตูุงุช ๐Ÿ‘‡๐Ÿ‘‡

ูกู€ ู†ุณุจุฉ ุงู„solid ุชูƒูˆู† 10ppm ูŠุนู†ูŠ ุนุดุฑ ุงุฌุฒุงุก ู„ูƒู„ ู…ู„ูŠูˆู† ูˆู„ุงุฒู… ู…ุชุชุฎุทู‰ ู‡ุงู„ู†ุณุจุฉ.

ูขู€ ู†ุณุจุฉ ุงู„ู…ูˆุงุฏ ุงู„ุนุถูˆูŠุฉ ู„ุงุฒู… ุชูƒูˆู† ู‚ู„ูŠู„ุฉ ุจุญูŠุซ ู…ุงุชุชุฌุงูˆุฒ ุงู„ 500ppm
ูˆู‡ุฐูŠ ุงู„ู…ูˆุงุฏ ุงู„ุนุถูˆูŠุฉ ุชูƒูˆู† ุบูŠุฑ ู…ุฑุบูˆุจุฉ ู„ุฃู† ู…ู…ูƒู† ุชูƒูˆู† ุชูˆูƒุณูƒ
ุฃูˆ ุชุตูŠุฑ ูˆุณุท ู„ู†ู…ูˆ ุงู„micro organism .

ูฃู€ ุงู„ู…ุงุก ุงู„ูŠ ุงุณุชุฎุฏู…ุฉ ู„ู„ injection ู„ุงุฒู… ูŠูƒูˆู† non conductivity ู„ุฃูƒุซุฑ ู…ู† ูˆุงุญุฏ micromho ุฃูˆ megohm,

๐Ÿงšโ€โ™‚ูˆู†ุณุจุฉ ุงู„ุฃู…ู„ุงุญ pproximately 0.1 ppm NaCl.
ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€

โœจู‡ุณู‡ ู†ุฌูŠ ู„ูู‚ุฑุฉ ุซุงู†ูŠุฉ ุงู„ู…ุงุก ุญูŠูƒูˆู† polar โœจู„ุฐู„ูƒ๐Ÿ‘‡

โœจุญูŠูƒูˆู† ู…ุฐูŠุจ ุฌูŠุฏ ู„ู„ู…ูˆุงุฏ ุงู„ูŠ ู†ูุณ ู†ูˆุนุฉ ูˆูŠูƒูˆู† ูˆูŠุงู‡ุง ุฃูˆุงุตุฑ ู‡ูŠุฏุฑูˆุฌูŠู†ุฉ
ู…ุซู„ ,๐Ÿ‘ˆ alcohol aldehyde ,keton ,amine,

โœจูˆูŠูƒูˆู† ู…ุฐูŠุจ ุถุนูŠู ู„ู„ู…ูˆุงุฏ ุงู„ non polar
๐Ÿ‘ˆู…ุซู„ ุงู„ alkaloids ู‡ุงูŠ ุชุญุชุงุฌ ู…ุฐูŠุจ ู†ูุณ ู†ูˆุนู‡ุง ูŠู„ุง ุชุฐูˆุจ .

โœจู‡ู†ุง ุดู„ูˆู† ู†ุฎู„ูŠ ุงู„ู…ุงุก ูŠูƒูˆู† ู…ุฐูŠุจ ุฌูŠุฏ ู„ู„ู†ูˆุนูŠู†๐Ÿ‘‡
ู…ู† ุฎู„ุงู„ ุฎู„ุท ุงู„ู…ุงุก ู…ุน ุงูŠุซุงู†ูˆู„ ุจู‡ุงูŠ ุงู„ู†ุณุจ
Ethanol 40%, Water 60%
ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€ู€

โœจThe percentage of solids in the frozen plug ๐Ÿ‘‰ 2 and 25%.A

โœจThe solids content of parenteral suspensions๐Ÿ‘‰ between 0.5 and 5%
๐Ÿ‘‰as high as 30% in antibiotic preparations.
โค1
Forwarded from Ph-Dalya muneer (Dalya muneer๐Ÿฆ‹)
ุงู„ูŠ ุฑุงุฏูˆุง ุงู†ุฒู„ ู…ู‡ู…ุงุช ุน ุฌุงุจุชุฑfiltration ุฑุงุญ ุงุจุฏูŠ ู‡ุณุฉ ุงู‚ุฑุงู‡ ๐Ÿฆ‹
Forwarded from Ph-Dalya muneer (Dalya muneer๐Ÿฆ‹)
ุฎู„ุต ุงู„ู…ูƒุณู†ูƒ ๐Ÿ˜ค
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
spray congealed coating ---used in taste mask+
sustained release formuation
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
flash dryer--fine particle--short-time process
ุงุณุฑุฑุฑุฑุน ุชุฌููŠู ุจุงู„ุงุฌู‡ุฒุฉ ู‡ุฐุง
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ุงู„ microwave
ุงู„ุฑุทูˆุจู‡ ุชุทู„ุน ุน ุดูƒู„ vapor

ุงู„ freeze ูŠุชุญูˆู„ ุงู„ุตู„ุจ ุงู„ู‰ ุบุงุฒ ุจุฏูˆู† ู…ุฑูˆุฑ ุจุงู„ุญุงู„ุฉ ุงู„ุณุงุฆู„ุฉ ุดู„ูˆู† ู„ูŠุด ู…ุงุฏุฑูŠ ุทูŠุน ูˆุงุณูƒุช
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ุงู„ freeze ู†ุณุชุฎุฏู…ู‡ุง ุญุชู‰ ู†ุฌูู ุดู†ูˆูˆูˆุŸุŸุŸุŸ
ู‡ุฑู…ูˆู† ุงูˆ ุงู†ุชูŠ ุจุงูŠุชูƒ ุงูˆ ุฏู… ุงูˆ ุจู„ุงุฒู…ุง ุฏู… ุงูˆ ู„ู‚ุงุญุงุช ุฎูˆูˆูˆูˆูˆุดุŸุŸุŸุŸ
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ุฎุทูˆุงุช ุงู„ freeze ุชูู‡ู…ู‡ุง ูˆุชุญูุธู‡ุง ู…ุซู„ ุงุณู…ูƒูƒูƒูƒูƒูƒ ูˆู„ุชูƒู„ูŠ ู„ูŠุดุด
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ู…ู†ูˆ ู…ู† ุงู„ุงุฌู‡ุฒุฉ ู…ุงู„ ุชุฌููŠู ูŠู†ุชุฌู„ูŠ spherical????


fludized bed dryer

ูˆุฒุงุฑุฑุฑุฑุฑุฑูŠ ูˆุฒุงุฑูŠ ูˆุฒุงุฑูŠ ูˆุฒุงุฑูŠ
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ู…ู†ูˆ ู…ู† ุงู„ุงุฌู‡ุฒุฉ ูŠุญูˆูŠ ู…ุงุณุญุงุช wiber???

move bed dryer

ุฌุงูŠ ุฌุงูŠ ุฌุงูŠ
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ู„ุง ุชู†ุณูˆูˆูˆูˆู† ุงุฐุง ู‚ู„ู„ู†ุง ุณู…ูƒ ุงู„ู…ูˆุงุฏ ุงู„ู…ุฑุงุฏ ุชุฌููŠูู‡ุง
ูŠุฒุฏุงุฏ ุงู„ rate ู…ุงู„ ุชุฌููŠููู ู‡ุงูŠ ุณูˆุงู„ู ุจุงู„ุนู‚ู„ู„ู„ ู…ุนู‚ูˆู„ุฉ ุงูู‡ู…ูˆู‡ุง
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ู…ู†ูˆ ู…ู† ุงู„ุงุฌู‡ุฒู‡ ูŠู†ุชุฌู„ู†ุง coat???
spray drying

ุงุญุณู‡ุง ุฌุงูŠุฉ
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ู‡ุงูŠ ู†ู‚ุงุท ู…ุงู„ ู…ุฎุทุท ุงู„ุณู„ูˆูƒูŠุงุช ู…ุงู„ ู…ูˆุงุฏ ุตู„ุจุฉ
ู†ู‚ุทุฉ D
ูˆู†ู‚ุทุฉ E
ูˆู†ู‚ุทุฉ C
ูˆุญุฏู‡ ู…ู†ู‡ู† ุฌุงูŠู‡
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
C--appear spots
C-D--incrase No. spots
D--complete evaporation


ุดูˆููˆุง ุชุฑุง ุงู„ spot ู…ุซู„ ุงู„ู†ุฏู‰ ุงูˆ ู†ู‚ุงุทุทุท ู‚ู„ูŠู„ุฉ ู…ุงู„ ุฑุทูˆุจู‡ ุถู„ุช ุงุฎุฑ ุดูŠุก
Forwarded from Pharmamem๐Ÿ’Š (ู…ุคู…ู„ ุญุณุงู…)
ุทุฑู‚ ุงู„ nonthermal ู…ู‡ู…ู‡ู‡ู‡ู‡ู‡ู‡ู‡ู‡ู‡ ุจุงูˆู„ ุตูุญุฉ
ู…ูƒุฏุฑ ุงูƒุชุจ ู„ุงู† ุงู„ูˆู‚ุช ูƒุงู„ุณูŠู