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FREE SILICA [5 records]
Record 1 - internal organization data 2011-09-26
Record 1, English
Record 1, Subject field(s)
- Bauxite Mining
- Geochemistry
Universal entry(ies) Record 1
Record 1, Main entry term, English
- bauxite
1, record 1, English, bauxite
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- airplane ore 2, record 1, English, airplane%20ore
correct, see observation, regional
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An off-white, grayish, brown, yellow, or reddish brown rock composed of amorphous or microcrystalline aluminum oxides and oxyhydroxides,(mainly gibbsite..., bayerite..., boehmite..., and diaspore...) admixed with free silica, silt, iron hydroxides, and especially clay minerals. 3, record 1, English, - bauxite
Record number: 1, Textual support number: 1 CONT
Bauxite is formed by the weathering of sediments or igneous rocks having relatively high alumina contents. 4, record 1, English, - bauxite
Record number: 1, Textual support number: 1 OBS
Bauxite is the chief ore of aluminum ... 3, record 1, English, - bauxite
Record number: 1, Textual support number: 2 OBS
airplane ore: A term used in Tennessee for bauxite. 2, record 1, English, - bauxite
Record 1, French
Record 1, Domaine(s)
- Mines de bauxite
- Géochimie
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- bauxite
1, record 1, French, bauxite
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- beauxite 2, record 1, French, beauxite
feminine noun, archaic
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Minerai d'aluminium [...] formé principalement d'alumine hydratée [...], parfois mélangé d'un peu de silice et d'oxydes de fer. 3, record 1, French, - bauxite
Record number: 1, Textual support number: 1 CONT
Le minerai d'aluminium est la bauxite, roche cohérente assez dure et de structure variée [...] La bauxite n'est pas une espèce minérale, mais un complexe de composition variable. Elle est formée essentiellement de [...] silicates d'alumine [...] et d'hydrates d'alumine (gibbsite, diaspore, boehmite). [...] Les bauxites résultent de l'altération de très nombreuses roches, à la suite d'un lessivage prolongé par les pluies chaudes des climats intertropicaux. 4, record 1, French, - bauxite
Record number: 1, Textual support number: 1 OBS
[La bauxite] est cohérente, rayée par le canif et non par l'ongle, de couleur crème ou, si elle contient du fer, rose ou rougeâtre. Elle n'est industriellement exploitable pour l'aluminium que si la teneur en silice ne dépasse pas 2 à 6 % et la teneur en fer 10 à 20 %. 3, record 1, French, - bauxite
Record number: 1, Textual support number: 2 OBS
[Étymologie] Bauxite : du village de Beaux, près d'Arles (Bouches-du-Rhône), découverte en 1821 par l'ingénieur des mines Berthier, [...] Le nom de beauxite [...] dû à Dufrenoy (1837) [...] a été orthographié bauxite par Sainte-Claire-Deville en 1861. 2, record 1, French, - bauxite
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Minas de bauxita
- Geoquímica
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- bauxita
1, record 1, Spanish, bauxita
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Sesquióxido hidratado de aluminio, mena explotada casi exclusivamente para fabricar dicho metal. 2, record 1, Spanish, - bauxita
Record number: 1, Textual support number: 1 CONT
La bauxita es más bien una mezcla compleja de minerales que difiere de un yacimiento a otro y se compone esencialmente de hidratos de alúmina, boehmita, diásporo, gibbsita, etc. Además de su uso principal, que es la producción de aluminio [...], se emplea, previamente calcinada, como materia refractaria, pues funde a 2050º C. También se usa en las refinerías para purificar ciertos derivados del petróleo. 2, record 1, Spanish, - bauxita
Record number: 1, Textual support number: 1 OBS
Agregado natural de minerales de aluminio en los que dicho elemento aparece principalmente en forma de óxidos hidratados. No tóxico, no combustible. Color blanco, crema, amarillo, pardo, gris o rojo. Insoluble en agua. Se descompone con el ácido clorhídrico. 3, record 1, Spanish, - bauxita
Record 2 - internal organization data 2011-01-05
Record 2, English
Record 2, Subject field(s)
- Petrography
- Geochemistry
Record 2, Main entry term, English
- silica-oversaturated rock
1, record 2, English, silica%2Doversaturated%20rock
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A rock in which there is more than enough silica to satisfy the requirements of all the major silicate minerals, the free silica appearing as quartz in the rock. 1, record 2, English, - silica%2Doversaturated%20rock
Record 2, Key term(s)
- silica oversaturated rock
Record 2, French
Record 2, Domaine(s)
- Pétrographie
- Géochimie
Record 2, Main entry term, French
- roche hypersiliceuse
1, record 2, French, roche%20hypersiliceuse
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- roche hypersaturée en silice 2, record 2, French, roche%20hypersatur%C3%A9e%20en%20silice
correct, feminine noun
- roche sursaturée en silice 3, record 2, French, roche%20sursatur%C3%A9e%20en%20silice
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les roches sursaturées en silice sont celles qui contiennent du quartz ou présentent une texture vitreuse ou aphyrique avec un excès de silice. 4, record 2, French, - roche%20hypersiliceuse
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2008-05-15
Record 3, English
Record 3, Subject field(s)
- Petrography
- Chemical Engineering
Record 3, Main entry term, English
- flux-calcined diatomite
1, record 3, English, flux%2Dcalcined%20diatomite
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- flux calcined diatomite 2, record 3, English, flux%20calcined%20diatomite
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Diatomite products that are further processed are called calcined and flux calcined diatomite. Most diatomite products are used in filtering applications. With a large particle size distribution, the smallest of the particles occupy space between larger particles. This reduces the rates of flow through the filter. The purpose of calcining is to reduce the particle size distribution. The use of the term calcined is ingrained in the diatomite industry and markets so it is used frequently, but diatomite is actually sinterized not calcined. Sintering reduces the size distribution by melting the smallest particles together. To produce calcined diatomite the natural product is heated to between 900°C and 1100°C. The high temperatures burn off organic contaminants, and shrink and harden the individual particles. Some of the diatom frustules are sintered into small clusters. The resulting calcined diatomite has a density of about 125 to 150 kg per cubic meter. Flux calcined diatomite is produced using the same methods except a fluxing agent is added before heating. 3, record 3, English, - flux%2Dcalcined%20diatomite
Record number: 3, Textual support number: 2 CONT
Diatomaceous earth is an amorphous form of silica containing a small amount of microcrystalline material. Filter aids are processed at above 800°C(1500°F). Both calcined and flux-calcined diatomite filter aids are free of organic matter and are non-adsorptive. 1, record 3, English, - flux%2Dcalcined%20diatomite
Record number: 3, Textual support number: 3 CONT
A highly purified flux calcined diatomite product having an intricate and porous diatomaceous silica structure, said product having a silica specific volume greater than 3.3 4, record 3, English, - flux%2Dcalcined%20diatomite
Record 3, French
Record 3, Domaine(s)
- Pétrographie
- Génie chimique
Record 3, Main entry term, French
- diatomite calcinée à l'aide de fondants
1, record 3, French, diatomite%20calcin%C3%A9e%20%C3%A0%20l%27aide%20de%20fondants
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- diatomite calcinée en présence d'un fondant 2, record 3, French, diatomite%20calcin%C3%A9e%20en%20pr%C3%A9sence%20d%27un%20fondant
feminine noun
- diatomite calcinée au fondant 3, record 3, French, diatomite%20calcin%C3%A9e%20au%20fondant
feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
La terre de diatomée, nommée également diatomite, est une silice amorphe qui peut contenir à l'état naturel entre 0,1 et 4 % de silice cristalline, généralement du quartz. Certains procédés industriels comme la calcination à haute température de la terre de diatomée, avec ou sans l'utilisation concomitante de fondants, transforment la silice d'une forme amorphe en une forme cristalline et plus précisément en cristobalite. La terre de diatomée calcinée sans l'aide de fondants peut ainsi contenir de 20 à 30 % de cristobalite, alors que la diatomite calcinée à l'aide de fondants peut être contaminée jusqu'à 60 %. 1, record 3, French, - diatomite%20calcin%C3%A9e%20%C3%A0%20l%27aide%20de%20fondants
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2006-11-03
Record 4, English
Record 4, Subject field(s)
- Petrography
- Geochemistry
- Soil Science
Record 4, Main entry term, English
- siliceous
1, record 4, English, siliceous
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Said of a rock containing abundant silica, especially free silica rather than as silicates. 2, record 4, English, - siliceous
Record number: 4, Textual support number: 1 CONT
Unconsolidated calcareous beach sands of Holocene age ... are widespread along the southern Australian coast and on their inland side frequently adjoin older siliceous sands derived from calcareous sands by leaching ... 3, record 4, English, - siliceous
Record 4, French
Record 4, Domaine(s)
- Pétrographie
- Géochimie
- Science du sol
Record 4, Main entry term, French
- siliceux
1, record 4, French, siliceux
correct
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Riche en silice. 2, record 4, French, - siliceux
Record number: 4, Textual support number: 1 OBS
Silice: Dioxyde de silicium de formule SiO2. 3, record 4, French, - siliceux
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Petrografía
- Geoquímica
- Ciencia del suelo
Record 4, Main entry term, Spanish
- siliceo 1, record 4, Spanish, siliceo
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2006-05-30
Record 5, English
Record 5, Subject field(s)
- Mineralogy
- Geochemistry
Record 5, Main entry term, English
- inert mineral
1, record 5, English, inert%20mineral
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
The garnet is an inert mineral, free from any harmful metals and is low free silica. 2, record 5, English, - inert%20mineral
Record number: 5, Textual support number: 2 CONT
Aggregate consists of hard, graduated fragments of inert mineral materials, including sand, gravel, crushed stone, slag, rock dust, or powder. 3, record 5, English, - inert%20mineral
Record 5, French
Record 5, Domaine(s)
- Minéralogie
- Géochimie
Record 5, Main entry term, French
- minéral inerte
1, record 5, French, min%C3%A9ral%20inerte
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
[...] le quartz a été défini comme un minéral inerte. 2, record 5, French, - min%C3%A9ral%20inerte
Record number: 5, Textual support number: 1 OBS
Un minéral, plus fort que ceux qui l'entourent, peut exercer en s'accroissant des efforts mécaniques comparables à ceux de la glace qui fait éclater une roche gélive. Il peut déplacer les minéraux voisins, englober certains d'entre eux [...] Ces inclusions deviennent alors «inertes», ne s'accroissent plus et demeurent plus petites que les minéraux de la trame. 3, record 5, French, - min%C3%A9ral%20inerte
Record 5, Spanish
Record 5, Textual support, Spanish
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