
	Where results make sense

Topic: Sylvinite

In the News (Sat 26 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Patent 4412838
		Potassium chloride of at least technical grade is recovered from sylvinite or sylvinite-like starting materials (sylvite) by leaching with hot mother liquor recycled from a crystallizing stage, the residue consisting substantially of sodium chloride is separated and the solution is cooled to crystallize the potassium chloride.
		For this reason it is conventional to leach sylvinite with reheated mother liquor recycled from a crystallizing stage so that potassium chloride is mainly dissolved and sodium chloride remains in the residue.
		Sylvinite is ground in a wet-grinding stage 1 in a solution which is saturated with sodium chloride and potassium chloride at room temperature (step (a)).
	www.freepatentsonline.com /4412838.html (3297 words)

	Potassium chloride - Wikipedia, the free encyclopedia
		It occurs naturally as the mineral sylvite and in combination with sodium chloride as sylvinite.
		Electrolysis (used for sodium) fails because of the high solubility of potassium in molten KCl.
		It is also extracted from salt water and can be manufactured by crystallization from solution, flotation or electrostatic separation from suitable minerals.
	en.wikipedia.org /wiki/Potassium_chloride (545 words)

	Patent 4608154
		Insolubles are removed from sylvinite ores by froth flotation using a small amount of a primary, secondary or primary-ether alkyl amine as collector in combination with a flocculant.
		Sylvinite ore containing 5% insol was treated for the removal of insol by flotation using varying amounts of primary amine.
		In a commercial operation for the recovery of sylvite, mine-run sylvinite ore containing 25.9% K.sub.2 O equivalent, 54% NaCl and 5.1% insol was comminuted (94%+200 Tyler mesh) and mixed with recycled saturated brine to form an ore pulp containing 70% solids.
	www.freepatentsonline.com /4608154.html (3617 words)

	Asia Pacific Potash Corporation :: Geology (Site not responding. Last check: 2007-10-21)
		Within the potash (sylvinite) resource boundary, the ore bed is continuous, extending about 10 km from west to east and 6 km from north to south.
		Over 20% of the deposit, the sylvinite ore zone is underlain by a clean halite interval called the Intervening Floor Halite unit.
		All sylvinite ore intervals were sampled and assayed in qualified laboratories in Vancouver, Canada to determine the percent of potassium, magnesium, sodium, calcium and water insoluble fractions.
	www.appc.co.th /theproject_geology.htm (956 words)

	revrul77-13
		Sylvinite, the potash ore mined by the taxpayer, is basically a mixture of halite (sodium chloride, NaCl) and sylvite (potassium chloride, KCl) with clay impurities.
		The mining processes applied by the taxpayer to sylvinite ore to produce fertilizer grade KCl are crushing, grinding, concentration by flotation, leaching, crystallization, dewatering, drying, and sizing.
		In the instant case, KCl is the only mineral recovered from the sylvinite ore and the KCl has been separated from the ore prior to the application of the compaction process.
	www.taxlinks.com /rulings/1977/revrul77-13.htm (1210 words)

	Patent 4192737
		Sylvinite ores are treated for removal of insoluble slimes by a froth flotation technique which includes flocculating the slimes with nonionic or polyacrylamide flocculants and thereafter utilizing a nonionic or an anionic flotation collector including a mixture of fuel oil or a fatty acid and a defoamer of the glycol ester or polyglycol ester type.
		A froth flotation process for removing insoluble slimes from sylvinite ore in a saturated brine pulp prior to potash flotation, comprising utilizing as the froth flotation collector a mixture of distilled fuel oil and a defoamer consisting essentially of ethylene glycol monoacetate and floating off said insoluble slimes.
		The insol slimes are conventionally removed by scrubbing the ore particles, followed by hydroclassification, as earlier described, to separate the slimes from the coarse sylvinite ore. Any residual insol slimes not removed by the desliming procedure are blinded with suitable reagents, such as guar gum or starch, to prevent interference in subsequent potash flotation.
	www.freepatentsonline.com /4192737.html (5097 words)

	Innovation in Europe: Research and Results
		The potash ore in the Sallent mine is a reddish mineral known as sylvinite, a form of potassium chloride.
		The computer finds the boundaries between the various seams, and identifies them primarily by colour and texture (sylvinite is redder and more coarsely layered than the others) with the assistance of neural networks.
		In the Sallent mine the cut minerals are carried away from the face by shuttle trucks and the sylvinite taken to the surface by conveyor belt while the waste is deposited in worked-out caverns within the mine.
	europa.eu.int /comm/research/success/en/mat/0043e.html (1168 words)

	Organic Fertilisers - Organic Choice (Site not responding. Last check: 2007-10-21)
		Sulphate of Potash (SOP) and Sylvinite are approved for restricted use, subject to approval from the registration body.
		Of these, Carrs Fertilisers use Sylvinite as SOP is too high in sulphur for most grassland systems and is also too acidifying.
		Sylvinite also provides a significant quantity of sodium, which is an important nutrient in an organic system.
	www.carrs-fertiliser.co.uk /organicchoice/index.html (304 words)

	16-1 (Site not responding. Last check: 2007-10-21)
		Results of surveying of the time-dependent surface subsidence in the areas of complete undermining with the pillars of various yield being left are presented.
		Results of the studies carried out to bring out the relationships connecting maximum rates of the interchamber pillar strain with the pillar dimensions, degree of their loading, the room dimensions and fullness of the room salt waste backfilling are cited.
		The paper presents basic statements of the engineering method of prediction of the surface maximum subsidence and strain in the movement trough edges at the room-and-pillar sylvinite seams mining with the pillars of various yield being left using relationships brought out and cited in the paper.
	www.coaleducation.org /abstract/cmining/ground/16th-1.htm (241 words)

	boulby
		The sylvinite is mostly brick red in colour but there are lenses of grey shale and pure white Potash.
		The sylvinite is not as structurally strong as the halite and is mined in six parallel tunnels, leaving 2.5 to 4 metre wide pillars between them, which allow a controlled rate of collapse of the tunnels.
		3 million tonnes of sylvinite are mined each year and produce 1 million tonnes of potash, mostly for use as a fertiliser.
	www.fortunecity.com /greenfield/ecolodge/25/boulby.htm (734 words)

	99-2047 -- IMC Kalium Carlsbad Inc. v. Interior Board of Land Appeals -- 03/16/2000
		Sylvinite and langbeinite are two types of potash ore, with langbeinite commanding a higher price.
		He based his evaluation on the current potash mining companies in the area, their current accessible reserves, and estimates of the minimum thickness of potash ore to economically justify mining in the disputed area.
		He noted that IMC is the only operator in the area that currently processes mixed sylvinite and langbeinite ore, like that found in the tenth ore zone of the disputed area.
	www.kscourts.org /ca10/cases/2000/03/99-2047.htm (4271 words)

	Potassium Fertilizers
		Sylvinite, sylvite, and langbeinite are the most important mineral sources.
		Sylvinite is composed primarily of potassium chloride (KCl) and sodium chloride (NaCl) and the unrefined ore contains 20-30% K
		Most muriate of potash is produced from sylvinite, but some comes from brines.
	www.agcentral.com /imcdemo/07Potassium/07-09.htm (443 words)

	Спелеокамеры под ключ. ООО "НВУ" - Treatment in speleoclimatic chamber (Site not responding. Last check: 2007-10-21)
		Sylvinite colouring - various shades of red and brown - is due to finely dispersed tiny imbedded needles and plates of hematite.
		The aggregate content of halite and sylvite in the sylvinite and salt rocks strata of Verknekamskoye potash deposit averages to 97-98%.
		The recommended methods of speleoclimatic treatment are based on the experience of the subterranean speleohospital in Berezniki-town and the ground-based speleochambers faced with sylvinite rock of the Verkhnekamskoye deposit.
	www.nvu.ru /staticpages/index.php?page=20030516180107345 (3135 words)

	Methods ot the dressing
		Sylvinite dressing by means of floatation method is running in saturated salt solutions.
		This method of dressing of the raw material, which contains potash, is based on dissolving the potassium chloride from the ore by the hot solution at the temperature of 120°C followed by the separate crystallization of the salt components of the processed ore.
		Technology of the hot-leaching method consists of crushing the sylvinite ore, dissolving the sylvinite by the hot liquor in dissolving tanks with screw mixers and bucket elevators, cooling (in order to achieve crystallization of the potassium chloride from the clarified saturated solution) and thickening in settling basins.
	www.kali.by /english/technolog.html (299 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Ores of the minable horizons 0√8 and 0√9 are presented by red sylvinites, and those of the horizon 0√7 √ by carnallite rocks.
		The selective excavation of sylvinite beds of the horizon 0-8 is considered preferable (average thickness of sylvinite beds 1 and 2 is 0.62√0.75 m and 0.75√0.87 m, respectively).
		In the section of the horizon 0√9 the selective excavation of the sylvinite bed 3 is possible (thickess averages 0.79√0.90 m).
	www.igs.ac.by /lithosphere/2001.no15/l15-e6.html (280 words)

	HighBeam Research: Library Search: Results (Site not responding. Last check: 2007-10-21)
		intersected approximately 2.2m of sylvinite at a depth of 365m, overlain...
		This hole included a 10m sylvinite intersection at a depth of about 208m, and is located...
		Les MDPA ont extrait pendant prs d'un sicle du minerai de sylvinite (chlorure de potassium et chlorure de sodium), mais n'ont exploit que la potasse et entass le chlorure de sodium qui a form...
	www.highbeam.com /library/search.asp?FN=SS&search_newspapers=on&search_magazines=on&q=sylvinite&refid=ency_botnm (597 words)

	Cotton: Potassium Sources
		Sylvinite, sylvite and langbeinite are the most important.
		- Sylvinite is composed primarily of potassium chloride (KCl) and sodium chloride (NaCl)-containing 20 to 30 percent K20.
		It is water soluble and contains 60 to 62 percent K20- Most North American KCI is produced from sylvinite, but some comes from brines.
	msucares.com /crops/cotton/potassium_sources.html (384 words)

	revrul67-194 (Site not responding. Last check: 2007-10-21)
		It extracts sylvinite from the mine and processes it at the mine site by the flotation method.
		The effect of section 1.863-6 of the regulations is to make the converse of the rule set forth in section 1.863-1(b) of the regulations applicable.
		Accordingly, under the circumstances described, the foreign corporation's income resulting from the mining and processing of sylvinite within a foreign country and the sale of the product in the United States, through an independent commission agent, without further treatment or processing outside the foreign country, is gross income from sources without the United States.
	www.taxlinks.com /rulings/1967/revrul67-194.htm (245 words)

	York: October 1999
		Sylvinite (natural K and Na chloride mineral; similarly Kainit which is allowed by some inspection bodies)
		Sylvinite and Kainit are mixed chlorides of Na and K and therefore add more chloride to the soil per unit of K than an equivalent application of KCl.
		It is a prerequisite of the existing UKROFS regulations permitting the use of fertilisers that the system should be designed to minimise external inputs by making the most efficient use of K in recycled manures, etc..
	www.iger.bbsrc.ac.uk /NOA/reports/october99.html (2416 words)

	sylvinite on Encyclopedia.com (Site not responding. Last check: 2007-10-21)
		Asia Pacific - Udon Thani Potash Project Update Global Potash Resource Approximately 1.3 Billion Tonnes of Sylvinite.
		A workhorse at Werra: the Werra mining complex is the heart of the production operations of K+S Kali Gmbh.
		The Sylvinite Project envisages a major increase in the production of potash salts there from 2005.
	www.encyclopedia.com /html/X/X-sylvinit.asp (228 words)

	Litasfera (Lithosphere), 2001, No.2(15)
		Ores of the minable horizons 0--8 and 0--9 are presented by red sylvinites, and those of the horizon 0--7 -- by carnallite rocks.
		The selective excavation of sylvinite beds of the horizon 0--8 is considered preferable (average thickness of sylvinite beds 1 and 2 is 0.62--0.75 m and 0.75--0.87 m, respectively).
		In the section of the horizon 0--9 the selective excavation of the sylvinite bed 3 is possible (thickess averages 0.79--0.90 m).
	www.ac.by /publications/litho/litho15.html (3577 words)

	K+S Gruppe - Press release 15.10.2004 (Site not responding. Last check: 2007-10-21)
		The launch of sylvinite extraction at Unterbreizbach, within the Hattorf/Wintershall mining complex, will tangibly enhance the competitiveness of the K+S Werra plant, which contributes over 40 percent to the total output of K+S KALI GmbH.
		K+S has completed the EUR 40 million project in less than two years since the ratification by Thuringia und Hesse of the state treaty that was needed.
		The main objectives of the the sylvinite project were to supply all production facilities within the Werra plant with as high quality crude salt as possible, to achieive an optimal level of plant utilization and to increase production capacity in a sustainable manner to satisfy rising demand.
	www.kali.de /medien/pressemitteilungen/presse-041015_en.cfm (808 words)

	Mining Technology - potash mine - Boulby - England
		Boulby potash occurs at depths between 1,200 and 1,500m in a seam ranging from 0—20m but averaging 7m in thickness.
		Within a permian evaporite sequence, sylvinite ore comprises 35—45% sylvite (potash) and 45—55% halite (salt), plus impurities.
		Following impact crushing and rod milling, de-sliming units feed underflow for salt and impurity removal by flotation while the overflow is classified and treated by filtration or slime flotation.
	www.mining-technology.com /projects/boulby (820 words)

	[No title]
		In Sergipe, sylvinite (KCl+NaCl) deposits occur in the regions of Taquari/Vassouras and Santa Rosa de Lima and in 2002 they amounted to 504.1 million tons, with 9.7% of K2O average content equivalent.
		In Santa Rosa de Lima region, 16 km west of Taquari/Vassouras, sylvinite reserves have been reevaluated as 66.9 million tons of mineable "in situ" ore, equivalent to 15.5 million tons of K2O.
		Note: The unit K2O is used to express potassium-contained though it does not correspond to the real chemical composition of the substance.
	www.dnpm.gov.br /enportal/assets/galeriaDocumento/SumarioMineral2003en/Potassio.doc (826 words)

	Production (Site not responding. Last check: 2007-10-21)
		The mineral composition of the deposit: sylvinite, halite, carnallite.
		This method depends on different floatability of sylvinite and halite in a saturated aqueous solution of silvine and halite in the presence of reagents.
		The galurgy is based on variation of mutual solubility of KCl and NaCl in water at different temperatures.
	www.uralkali.com /portal/page?_pageid=42,62248&_dad=portal&_schema=PORTAL (442 words)

	Proc. of the Natl. Academy of Sciences of Belarus, Ser. Phys.-Eng. Sci., 2002, No.4 (Site not responding. Last check: 2007-10-21)
		Levdansky A. E., Vilkotsky A. I., Levdansky E. Investigation of a multistage flowing mill at a selective decomposition of sylvinite ores.
		Summary: The article is devoted to exploration of a grinding operation of sylvinite ore in a multistage flowing attritor.
		The potential possibilities of applying of an attritor are reviewed during preliminary opening-up ores of sylvinite to floatation.
	www.ac.by /publications/vestift/vth02_4.html (1610 words)

	Asia Pacific Potash Corporation :: Project Background (Site not responding. Last check: 2007-10-21)
		Ten years of exploration, scoping and feasibility studies by APPC has resulted in the identification of two separate potash deposits within the Udon Thani Potash Concession boundary.
		The identified potash rock – sylvinite - is the most highly valued of all potash rock material.
		The two potash deposits delineated by APPC are estimated to contain over one billion tone of geological resources.
	www.appc.co.th /theproject_background.htm (571 words)

	K+S Gruppe - Press release 27.11.2003 (Site not responding. Last check: 2007-10-21)
		When full-scale production starts at the beginning 2005, the "sylvinite project," as the undertaking is referred to in brief, will yield a reduction of costs, thus strengthening international competitiveness.
		Although little less than one year has passed since the appropriate political conditions were established, the technically demanding project is proceeding on schedule.
		Along with the development of the sylvinite deposits in the Unterbreizbach south-east field an ventilation drift will be constructed leading from there to the adjoining Merkers mine to the east and a conveyance system linking the mining operation at Hattorf/Wintershall, Hesse, will be installed at the same time.
	www.thomaskali.net /medien/pressemitteilungen/presse-031127_en.cfm (616 words)

	THE ASIA PACIFIC POTASH CORPORATION
		"We initiated this project by exploring for potash in the Udon Thai Potash Concession Area where we successfully identified a sylvinite deposit which is a high-grade potash ore sufficient to support at least one 2 million tonne/annum mine and possibly even a second and a third.
		In addition, in the field called the Udon, which is 5 km to the north of Somboon, there is over 1 billion tons of sylvinite ore. In the Somboon field, APPC has carried out feasibility studies showing it can support a two million ton mine for over twenty-five years.
		And it is continuing its feasibility studies in the Udon field which could support a second mine and possibly even a third.
	www.scottmurray.com /asia_pacific_potash_corporation.htm (1093 words)

	K+S Gruppe - History (Site not responding. Last check: 2007-10-21)
		Launch of sylvinite extraction at the K+S Werra plant.
		The launch of sylvinite extraction at Unterbreizbach, within the Hattorf/Wintershall mining complex, will tangibly enhance the competitiveness of Werra plant, which contributes over 40 percent to the total output of K+S KALI GmbH.
		As of 1 January 2005, an additional 1.5 million tons of sylvinite per year are to be extracted from the southeastern field of the Unterbreizbach mine.
	www.kalisalz.com /gruppe/historie_en.cfm (2648 words)

Try your search on: Qwika (all wikis)