solvent separation Articles
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Kimre Inc. LIQUI-NOMIX oil-water separators
Liquid - liquid mixtures of contaminant oils (or organic solvents) in water (or aqueous solvents) can be separated economically and efficiently with gravity settlers or decanters. To achieve high efficiency separations, the settling unit must include a coalescing stage for removal of small droplets of oil. Kimre Inc.'s LIQUI-NOMIX coalescers provide high efficiency polishing of liquid streams and ...
By Kimre Inc.
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Mass flow measurement with SolidFlow 2.0 - Case Study
Application In an opencast mine, brown coal with a very high content of wax is mined. From this coal, raw montan wax is obtained in different process steps. Therefore, the coal is crushed, dried and impinged with an environmentally friendly solvent to separate the wax from the coal. The acquired montan wax is transported into an evaporation system, where it evaporizes in several stages. After ...
By ENVEA
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Ex Situ Physical/Chemical Treatment for Soil, Sediment, and Sludge
The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. Ex situ treatment, however, requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...
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Recycling Solvents in Histology Department of Hospitals
Industrial rotary evaporator: eco-friendly and cost-saving Solvents (ethanol, xylene and water) are used in histology for dewatering and destaining during the preparation of tissue sections. Here we show how these solvents are recycled in an automated process using an industrial rotary evaporator. We offer safe and efficient industrial distillation by intuitive operation and handling. ...
By BUCHI
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Solvent choices for infrared testing of oil and grease in water
Water is a very strong absorber in the mi d infrared (I R) regio n where o il is measured. We see the effect of infrared absorbance when a cold bucket of water left in the sun is quite warm by afternoon due to the absorption of infrared energy as heat. When measuring part per million (ppm) oil levels with mid IR, the water absorbs so much of the infrared energy that the signal becomes saturated ...
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Trace Analysis of PAHs using EPA methods 3541, 3545 and 8100
The Extraction System B-811 and the Syncore Analyst parallel concentrator from Buchi as well as the Pressurized Solvent Extractor from Applied Separations were evaluated for the pretreatment of samples containing PAHs. Recoveries of extraction and subsequent concentration using acetone-n-hexane (1+1) were 70-95% for 2 ring and 90-100% for less volatile 3-5 ring PAHs. A good precision (95% ...
By BUCHI
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Dialysis with a semipermeable membrane – a new sample-preparation technique for determination of Polybrominated Diphenyl ethers in fatty matrices
Summary Dialysis with a low-density polyethylene semipermeable membrane (SPM) is an efficient means of removal of lipids in the determination of bioaccumulative, persistent, halogenated organic compounds. In this study an SPM was used for preconcentration of polybrominated diphenyl ethers (PBDE) from food samples. The method is useful for determination of PBDE and other halogenated persistent ...
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American Upstart Filter Brand Competing with the Majors
Flexotherm® has expanded its product line in the highly competitive filtration market. The company now offers 2,900 different filter elements including coalescers, particulate, adsorbers, general purpose and high temperature filters. Consistent Sales Growth The new product line rolled out in early 2010, has shown incremental monthly gains averaging over 46% for the past four months. The ...
By Neptech Inc.
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Why do we need to separate and recycle aluminum-plastic composite materials? What methods can be used?
As a relatively practical material, aluminum-plastic composite material provides a lot of convenience to our daily lives. By recycling aluminum-plastic composite materials, waste that might otherwise be discarded can be transformed into new raw materials that can be produced again. The process of recycling aluminum and plastics is less energy-intensive than the huge energy consumption required to ...
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New titanium industry could grow out of oilsands waste
After several years and nearly $100 million of research, engineers say they have developed new technology to extract valuable metals from the waste produced by the oilsands in northern Alberta. Canadian Natural Resources and Titanium Corp. have a proposal to construct a $400-million facility at CNR's Horizon oilsands site to produce titanium and zircon from the materials left over from bitumen ...
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Webinar Recap: “Developing, Testing, and Troubleshooting Chromatography Method Transfer”
Hi, I’m Tom Wheat, Principal Scientist at Waters, and I recently hosted a webinar entitled, “Developing, Testing and Troubleshooting Chromatography Method Transfer.” Over the course of the webinar, we discussed the transfer of chromatographic methods that occurs at many stages in the development and production of a product. In its simplest form, the method is moved from one ...
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LC6000 Good Practice Handbook
To ensure long term reliability and efficiency of the SCION Instruments LC6000 it is vital that considerations are taken when operating the HPLC system. SCION Instruments have now released their LC6000 Good Practice Handbook, a necessity for any HPLC user. The following handbook will provide guidelines for instrument preparation and routine operation recommendations to maintain the outstanding ...
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Separation and identification of organic compounds from thermally dissolved Shengli lignite in a methanol/benzene mixed solvent
Thermal dissolution of Shengli lignite was conducted in a methanol/benzene mixed solvent at 240°C for 1 h. The soluble fraction was sequentially eluted with petroleum ether (PE) and carbon disulfide (CDS)/PE mixed solvents with increased CDS to PE ratio through a silica gel–packed column. A series of normal alkanes, polycyclic aromatics, methyl alkanoates, alkanoic acids, and fatty acid amides ...
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Supramolecular solvent-based extraction coupled with vortex-mixing for determination of palladium and silver in water samples by flame atomic absorption spectrometry
A simple and practical extraction method of supramolecular solvents (SUPRAS) was developed for separation and enrichment of trace amounts of palladium (Pd) and silver (Ag) in water samples prior to flame atomic absorption spectrometry (FAAS) analysis. The SUPRAS selected was made up of an aqueous solution containing tetrahydrofuran and nonanoic acid. Pd and Ag reacted with ...
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Analysis of Polychlorinated Biphenyls in Soil
Polychlorinated biphenyls (PCBs), also known as chlorinated biphenyls, are a class of chlorides formed by the substitution of chlorine for hydrogen atoms in the biphenyl ring. PCB is a synthetic organic compound used in industry as heat carrier, insulating oil and lubricating oil. The wide use of PCBs in industry has caused global environmental pollution problems. Waste from factories that use ...
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Integration of ceramic membrane and compressed air-assisted solvent extraction (CASX) for metal recovery
In our previous publications, compressed air-assisted solvent extraction process (CASX) was developed and proved to be kinetically efficient process for metal removal. In the current study, CASX with a ceramic MF membrane integrated for separation of spent solvent was employed to remove and recover metal from wastewater. MF was operated either in crossflow mode or dead-end with intermittent ...
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Principles of Solid-Liquid Separation for the Pharmaceutical Industry
Solid-liquid separation is necessary in many industries for compliance, quality control, and efficient production processes. In the pharmaceutical industry, solid-liquid separation is conducted in applications such as biocatalysis, active pharmaceutical ingredient (API) purification, and chromatography, to name a few. The separation process can be carried out through a range of instruments, but ...
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What should I do with old circuit boards?
So far, old circuit boards is the main source of e-waste. Because of being very harmful to the environment, old circuit boards can not be thrown away unceremoniously. Then what can old circuit boards do? How to do with old circuit boards is the right way? Old circuit boards is with many electronic components, which can be dismanlted and recycled. And old circuit boards contain many kinds of ...
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Pharmaceutical and chemical waste gas treatment
Some problems existing in the waste gas treatment of the pharmaceutical and chemical industry and the specific method to solve the waste gas treatment problem in the industry, of course, the industry is mainly the waste gas treatment problem of solvents: Problems existing in the treatment of solvent waste gas in pharmaceutical and chemical waste gas treatment After the control and treatment of ...
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VacuDry Indirect heated vacuum thermal Desorption by econ industries - case study
With the VacuDry8 technology the energy-efficient treatment of hazardous and industrial waste as well as contaminated soil, oil sludge and secondary raw material is realized. Controlled vacuum and heat are used to separate minerals from oil, solvents, mercury and other hazardous substances. At the core of the econ VacuDry8 process is a specially designed dryer chamber which uses heat and ...
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