Production of Synthetic Fluorspar from Waste Calcium Fluoride Slurry Z. Kowalski, ... temperature wasteless process .
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Prior art keywords calcium chamber gases solution acid Prior art date 1945-01-04 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no ...Get Detail
The invention provides a process for growing UV region <200 nm transmitting calcium fluoride monocrystals, which includes crystallization from the melt, the annealing ...Get Detail
Prior art keywords silica process acid fluoride calcium Prior art date 1952-01-19 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no ...Get Detail
A process for the preparation of calcium fluoride from industrial waste waters which comprises treatment of the waste waters with potassium hydroxide, followed by lime precipitation, neutralization with carbon dioxide and ...Get Detail
Describes a crystallisation process developed by DHV Water BV of the Netherlands for the recovery of fluoride from industrial wastewater. The process is based on the Crystalactor (reg. trademark) technology which produces ...Get Detail
THE MANUFACTURE OF THE FLUORIDE CHEMICALS ... explanation of the manufacturing process follows: Apatite rock, a calcium mineral found in ... like calcium fluoride, isGet Detail
Reduction of Fluorine-containing Industrial ... and is deposited as calcium fluoride. 2. Second process ... Reduction of Fluorine-containing Industrial Waste Using Aluminum-solubility MethodGet Detail
Sigma-Aldrich offers Sigma-Aldrich-01905, Calcium fluoride for your research needs. Find product specific information including CAS, MSDS, protocols and references.Get Detail
The combination of a fluidized bed reactor and a sand filter bed in the process has been able to ... Crystallization of Calcium Fluoride on ... Fluoride Recovery in a Fluidized Bed: Crystallization of Calcium ...Get Detail
Fluoride Removal from Wastewater. ... Precipitation as calcium fluoride ... Digital Analysis Corp. offers a detailed white paper thoroughly describing our fluoride reduction process in detail.Get Detail
Calcium Fluoride Sputtering Target materials can be fabricated into a wide range of shapes and sizes some technical maximum size single piece construction.Get Detail
This work focuses on fluoride recovery as a solid product CaF 2 in order to (i) improve process efficiency by means of the reduction of fines formation with the distributed feeding of calcium along the height of the reactor ...Get Detail
Substance Information. ... Regulatory process names . Calcium fluoride ; calcium fluoride . Trade names . Aluspar ; ... calcium difluoride ; Calcium Fluoride ; Calcium fluoride, anhydrous ; Calciumfluoride ; Fluorite, ...Get Detail
The invention relates to a process for preparing synthetic calcium fluoride (CaF2) (min 90 wt% CaF2) from fluosilicic acid. Said process includes the following steps: (a) reacting fluosilicic acid (H2SiFe) with ammonium ...Get Detail
Calcium, phosphate and fluoride found in saliva, ... Fluoride interferes with the process of tooth decay as fluoride intake during the period of enamel development for up to 7 years of …Get Detail
In addition to its crystal growth technology and quality control process, Nikon has introduced a process technology of its own using a single-crystal calcium fluoride that is optimized for use in the visible/infrared regionsGet Detail
Process for recovering solid calcium fluoride containing product and colloidal silica solution from a weak aqueous fluosilicic acid solution US 2780523 AGet Detail
A process is disclosed for producing calcium fluoride comprising: (a) mixing aqueous H3PO4 with aqueous H2SiF6 to form a mixture such that the concentration of H3PO4 is at least about 3 moles/liter, (b) adding phosphate rock ...Get Detail
A process for the preparation of calcium fluoride from industrial waste waters which comprises treatment of the waste waters with potassium hydroxide, followed by lime precipitation, neutralization wiGet Detail
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