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Topic: Kieselguhr


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In the News (Tue 25 Jun 19)

  
  British Pharmaceutical Codex 1911: KIESELGUHR.   (Site not responding. Last check: 2007-10-20)
Kieselguhr is a siliceous deposit, formed chiefly of the frustules and fragmentary debris of diatoms—minute unicellular plants—which have accumulated in the depths of lacustrine districts.
Kieselguhr occurs as a whitish, or slightly buff-coloured, fine, gritty powder, which is odourless, tasteless, and unaffected by all ordinary solvents.
Kieselguhr is also used as a filtering medium, to clarify syrups and other liquids; for this purpose the powder should be triturated in a mortar with a little of the liquid before being added to the bulk of liquid to be filtered.
www.ibiblio.org /herbmed/eclectic/bpc1911/kieselguhr.html   (343 words)

  
 DYNAMITE - LoveToKnow Article on DYNAMITE   (Site not responding. Last check: 2007-10-20)
This kieselguhr dynamite is generally made by incorporating three parts of nitroglycerin with one part of the dry earth, the paste being then formed into cylindrical cartridges.
Generally a small percentage of the kieselguhr is replaced by a mixture containing sodium and ammonium carbonates, talc and ochre.
Disabilities attaching to kieselguhr dynamite are that when place~d in water the nitroglycerin is liable to be exuded or displaced, also that, like nitroglycerin itself, it freezes fairly easily and thawing the frozen cartridges is a dangerous operation.
www.1911encyclopedia.org /D/DY/DYNAMITE.htm   (623 words)

  
 Kieselguhr
Kieselguhr, a diatomaceous earth (diatomite) is a form of silica composed of the siliceous shells of unicellular aquatic plants of microscopic size.
Kieselguhr is heat resistant and has been used as an insulator, as a component in toothpaste and as an abrasive in metal polishes.
In the chemical industry, it is also used as a filter to clarify syrups and sugar and as a filling material in paper, paints, ceramics, soap and detergents.
nobelprize.org /nobel/alfred-nobel/industrial/krummel/kieselguhr.html   (73 words)

  
 New filtration method for liquid protects the environment
The new method protects the environment by avoiding use of the mineral kieselguhr which may be carcinogenic.
Kieselguhr is expensive, generates large volumes of dust, and the dust may also cause lung cancer.
After prefiltration, the quality of the sour cherry juice did not fulfil the requirements posed by the juice industry, and further processing (filtration) of the juice was necessary.
www.mst.dk /project/NyViden/2000/08130000.htm   (2216 words)

  
 The Notification of New Substances (NONS): A17 Oxidising pro...
The usefulness of the supplementary tests with kieselguhr and under an inert atmosphere are recognised but they have not been validated.
The kieselguhr is sieved and ground in the same way as the test substance.
Nine mixtures of kieselguhr and test substance are prepared containing from 10 to 90 per cent by weight of kieselguhr in 10 per cent increments.
www.hse.gov.uk /nons/nonsa17.htm   (1684 words)

  
 Palladium/kieselguhr composition and method - Patent 5248649
The hydrogen-absorbing composition in its preferred embodiment comprises palladium, a metal hydride, uniformly distributed throughout the interior of a kieselguhr substrate, preferably in the form of granular (30-40 mesh) kieselguhr particles.
In addition to using kieselguhr particles as the preferable substrate for palladium, other support materials such as substrates made of glass frit, quartz frit, and sintered aluminum may be used.
If the palladium deposited within the kieselguhr substrate does not comprise the desired percent by weight of the composition, the process steps are repeated until the desired amount of palladium is deposited within the kieselguhr.
www.freepatentsonline.com /5248649.html   (1638 words)

  
 Carlson Filtration -Beers and Lagers   (Site not responding. Last check: 2007-10-20)
The role of the filter sheet is to capture the kieselguhr filter medium and help establish the build up of the filter cake within the filter.
In most breweries it is impractical to add kieselguhr powder in bulk to the beer prior to filtration.
Consequently this is usually achieved with automatic dosing equipment, which injects metered quantities of kieselguhr in slurry form into the beer flow line.
www.carlson.co.uk /beer.htm   (505 words)

  
 PLK Chromatography
The DNA molecules in the broken cell mixture bind exclusively to the poly-lysine, which is in turn bound to the white kieselguhr powder, making an insoluble compound substance.
This removes all the other cell-contents and leaves the DNA bound to the poly-lysine, which is in turn bound to the solid kieselguhr.
The DNA molecules are released from their complex with the poly-lysine kieselguhr (PLK) by passing stronger and stronger solutions of salt through the column of PLK and DNA.
www.brooklyn.cuny.edu /bc/ahp/SDPS/PLK/SD_PS_PLK.html   (722 words)

  
 [No title]   (Site not responding. Last check: 2007-10-20)
Perlite and kieselguhr are used as filter media and filter aids for filtration of suspensions of different nature.
Simultaneously, kieselguhr filter aids, represented by highly irregular particles, may represent an excellent experimental model for the investigation of the behaviour of mixtures of irregular particles with regular (granular) material.
The curve ABCD may be due to the fact that kieselgel and kieselguhr-G fill the void between large particles; in turn the curve ABD may be explained by intrusion of fine particles in the skeleton of the large particles.
www.min-eng.com /protected/sls02ex/mota.doc   (1366 words)

  
 Eduard Buchner   (Site not responding. Last check: 2007-10-20)
1,000 grams of brewers' yeast,[1] purified for the preparation of pressed yeast but still not treated with potato starch, is carefully mixed and then rubbed with an equal weight of quartz sand[2] and 250 grams of kieselguhr, until the mass becomes moist and plastic.
The paste is then treated with 100 grams of water and, wrapped in a press cloth, is placed gradually under a pressure of 4 to 500 atmospheres: 300 cubic centimeters of press juice result.
To remove traces of cloudiness, the press juice is finally shaken with 4 grams of kieselguhr and filtered through a paper filter with repeated refiltrations for the first portions.
web.lemoyne.edu /~giunta/buchner.html   (1653 words)

  
 The World Market for Siliceous Fossil Meals (Kieselguhr, Tripolite and Diatomite) and Similar Siliceous Earths of a ...
Chapter 4 does the same, but for imports of siliceous fossil meals (kieselguhr, tripolite and diatomite) and similar siliceous earths of a specific gravity of not over 1 for all countries in the world.
Combined, Chapters 3 and 4 present the complete picture for imports and exports of siliceous fossil meals (kieselguhr, tripolite and diatomite) and similar siliceous earths of a specific gravity of not over 1 to and from all major countries in the world.
The SITC code that defined "siliceous fossil meals (kieselguhr, tripolite and diatomite) and similar siliceous earths of a specific gravity of not over 1" is 27895.
www.marketresearch.com /map/prod/1029688.html   (1344 words)

  
 Palladium-Coated Kieselguhr for Simultaneous Separation and Storage of Hydrogen
Palladium finely dispersed in a substrate of kieselguhr, Pd/k for short, has been successfully used for hydrogen storage, separation and pumping for a number of years at the Savannah River Site (SRS).
This paper will discuss characteristics of the palladium-coated kieselguhr or diatomaceous earth, design and operation of the FTB, and results of performance tests such as separation efficiency, hydrogen storage capacity and system heat transfer characteristics.
Kieselguhr is a diatomaceous earth that acts as an inert, high-surface area substrate procured from
sti.srs.gov /fulltext/ms2001744/ms2001744.html   (3357 words)

  
 Proceedings of Technical Oil Mission Meeting - Catalyst Manufacture for Fischer-Tropsch and other Processes
The variation in density, kieselguhr proportion is due to variation in density, kieselguhr being added in such amount as to maintain a constant cobalt content of 80 grams/liter of unreduced catalyst.
The slurry is pumped to a standard-type filter press, and the cake washed with distilled water until the wash-water is neutral as determined by the addition of nitrophenol to 100 ml, wash-water plus 5 ml.
The kieselguhr is then added rapidly, stirred for about 1 minute, and the mixture washed to a pH of 8.0 after which it is washed with a potassium carbonate solution to incorporate the specified quantity of K
www.fischer-tropsch.org /Bureau_of_Mines/tom_meeting/cataylst_manu.htm   (11045 words)

  
 Duotank, engineering .   (Site not responding. Last check: 2007-10-20)
Mixed with several sorts of water, the kieselguhr is dosed to the lagerbeer.
Kieselguhr is a fine silica containing substance (diatomaceous) with possible carcinogenic properties.
The installation usually contains a strong exhaust for the kieselguhr transport with the necessary dust extractor (cyclone with dust filter) and a bag transport section with a bag cutter to open the bags with kieselguhr.
www.duotank.nl /ukeng.html   (894 words)

  
 wikien.info: Main_Page   (Site not responding. Last check: 2007-10-20)
Dynamite is an explosive based on the explosive potential of nitroglycerin using Kieselguhr as an absorbent.
This causes a serious safety hazard and has led to a decrease of the popularity of dynamite.
By coincidence he discovered that nitroglycerin absorbed in kieselguhr is insensitive to impact.
www.hostingciamca.com /index.php?title=Dynamite   (468 words)

  
 New Generation of Candle Filters for Kieselguhr Filtration of Beer   (Site not responding. Last check: 2007-10-20)
Based on thorough analysis of the filter systems for kieselguhr filtration, a novel candle filter system Getro-Eco with major improvements has been developed.
Effective extension of filter cycles reduced the kieselguhr overall consumption owing to the new construction of the filter candle.
There are considerable savings of water for cleaning of candles and filter vessel due to a newly developed spray nozzle system and patented stainless steel trickle film device on top of the filter candles ensuring controlled water flow during washback.
www.beer.cz /~kp/1999/11_99/filtra.html   (158 words)

  
 MBAA TQ - Sterile filtration of beer.   (Site not responding. Last check: 2007-10-20)
To enhance the colloidal stability of the beer, PVPP can be added following primary filtration and removed after four minutes by means of a second filtration, preferably with a horizontal kieselguhr filter.
With the proper equipment and procedures, over 99% of the PVPP can be recovered for later use.
When combined with rigorous standards of hygiene, careful selection of raw materials and well run process control, the filtration procedures described allow the brewer to meet the highest standards of quality and stability.
www.mbaa.com /TechQuarterly/Abstracts/1989/tq89ab20.htm   (139 words)

  
 MBAA TQ - Membrane Filtration for Bright Beer, an Alternative to Kieselguhr   (Site not responding. Last check: 2007-10-20)
The process is based upon Cross flow microfil-tration, which in the past has been tried and tested many times, but has never been able to become a technically and economically feasi-ble alternative to conventional kieselguhr filtration.
This was mainly due to high fouling rates of the membranes, short run times and inad-equate cleaning procedures.
Preliminary results show that this technology will be able to replace kieselguhr filtration in breweries from a technical as well as an economical point of view.
www.mbaa.com /TechQuarterly/Abstracts/2000/tq00ab42.htm   (455 words)

  
 McNab Introduces Kieselguhr Dosage System
Mount Vernon, NY - McNab, Incorporated has introduced an automatic Kieselguhr Dosage System for controlling body feed to diatomaceous earth filters.
The new Model DSC replaces manual dosage and/or delta-P feedback control Systems, and is said to match Kieselguhr dosage with the beer solids content, thus reducing material and disposal costs for breweries.
The Model DSC optically measures suspended solids content in the process line using a dual-angle beam analyzer; one measuring scattered light at 90º for protein and the other at 130º for yeast.
www.themcnab.com /Press_Release/A90-89_Kieselguhr_Dosage_System.htm   (122 words)

  
 dynamite --  Encyclopædia Britannica
Dynamite is based on nitroglycerin but is much safer to handle than nitroglycerin alone.
By mixing the nitroglycerin with kieselguhr, a porous siliceous earth, in proportions that left an essentially dry and granular material, Nobel produced a solid that was resistant to shock but readily...
He coined the name from the Greek dynamis, “power.” The basis for the invention was his discovery that kieselguhr, a porous siliceous earth, would absorb large quantities of nitroglycerin, giving a product that was much safer to handle and easier to use than nitroglycerin alone.
www.britannica.com /eb/article-9031672?tocId=9031672   (644 words)

  
 Study of messenger-like RNA extracted from HeLa cells polysomes. II. Identification of the types of RNA eluted from ...   (Site not responding. Last check: 2007-10-20)
Identification of the types of RNA eluted from methylated albumin kieselguhr columns.
Identification of the types of RNA eluted from methylated albumin kieselguhr columns.Within peak Q2P, the critical factor affecting the order of elution is the size of the polyadenylic acid stretch.
HSRNA is eluted within three peaks-IP, Q2P and TDP-following in that order the increase of NaC1 concentration in the eluting buffer.
www.pdg.cnb.uam.es /UniPub/iHOP/gp/2655479.html   (159 words)

  
 The World Market for Siliceous Fossil Meals (Kieselguhr, Tripolite and Diatomite) and Similar Siliceous Earths of a ...
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The total level of imports and exports on a worldwide basis, and those for each region, is based on a model which aggregates across country markets and projects these to the current year.
Of the countries considered, if a country is not reported here it is therefore estimated to have only a negligible level of trade in siliceous fossil meals (kieselguhr, tripolite and diatomite) and similar siliceous earths of a specific gravity of not over 1 (i.e.
www.marketresearch.com /researchindex/916836.html   (925 words)

  
 Kieselguhr: Definition of Kieselguhr in Webster's Dictionary 1913 Edition - Wunder Dictionary   (Site not responding. Last check: 2007-10-20)
Kieselguhr: Definition of Kieselguhr in Webster's Dictionary 1913 Edition - Wunder Dictionary
Kieselguhr: Definition of Kieselguhr in Webster's Dictionary 1913 Edition
Siliceous earth; specifically, porous infusorial earth, used as an absorbent of nitroglycerin in the manufacture of dynamite.
websters.wunderdictionary.com /dictionary/def/english/kieselguhr.html   (47 words)

  
 Kieselguhr
This is the definition of the term Kieselguhr
Kieselguhr (n.) Siliceous earth; specifically, porous infusorial earth, used as an absorbent of nitroglycerin in the manufacture of dynamite.
For people who have trouble spelling, this is the defintion of the term Kieselguhr
linkspider.serversystems.net /dictionary/lookup/kieselguhr   (86 words)

  
 Kieselguhr   (Site not responding. Last check: 2007-10-20)
The word "kieselguhr" uses 10 letters: E E G H I K L R S U.
Words within kieselguhr not shown as it has more than seven letters.
List all words starting with kieselguhr, words containing kieselguhr or words ending with kieselguhr
www.morewords.com /word/kieselguhr   (163 words)

  
 Background Info
This positive charge enhances the retention of small negatively charged particles / microorganism.
cellulose fibers and Kieselguhr has a high dirt
The typical depth filter sheet has a dirt holding capacity of about 4 Liters (1 US gal) for a square meter (abt.
www.filtrox.ch /filtrox-gbs-en/Depth_Filtration.htm   (869 words)

  
 Alfa Laval and Sartorius extend alliance in beer filtration   (Site not responding. Last check: 2007-10-20)
Sartorius will exclusively supply the membrane filter elements and transfer its know-how for the design and production of complete membrane filter systems as well as its key engineering and sales personnel in the largest markets like China and Japan to Alfa Laval.
Until now, kieselguhr has been the established method for filtration or clarification of beer.
Kieselguhr, also known as diatomaceous earth, is a filter aid that has known problems, for instance, kieselguhr has a negative impact on the environment and can cause health hazards and entails waste disposal difficulties.
www.primezone.com /newsroom/news_releases.mhtml?d=60905   (936 words)

  
 The World Market for Siliceous Fossil Meals (Kieselguhr, Tripolite and Diatomite) and Similar Siliceous Earths of a ...
kieselguhr supplier in republic of south africa, kieselguhr suppliers, diatomite market, diatomite beverage market size, kieselguhr market price
This report was created for strategic planners, international executives and import/export managers who are concerned with the market for siliceous fossil meals (kieselguhr, tripolite and diatomite) and similar siliceous earths of a specific gra......
The World Market: Siliceous Fossil Meals (Kieselguhr, Tripolite and Diatomite) and Similar Siliceous Earths of a Specific Gravity of Not over 1 Export Supplies in 2005
icon.ecnext.com /coms2/summary_0240-299865_ITM   (545 words)

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