Solvent Recycling Articles

  • Antibiotics Fermentation Broth Clarification

    Cephalosporin Cephalosporin is the second class of β-Lactamase found in nature following by penicillin. Any of various broad-spectrum antibiotics, closely related to the penicillins, which were originally derived from the fungus Cephalosporium acremonium. It has many advantages of high efficiency, broad-spectrum, low toxicity and enzyme-resistance which has been developed four new products ...


    By Jiangsu Jiuwu Hi-tech Co

  • Amino Acid Fermentaion Broth Clarification

    Amino acids are the basic unit of protein composition, most amino acids are produced by fermentation method. Fermentation broth is an extremely complex system and contains microbial cells, metabolites, unconsumed medium, etc. The traditional method such as centrifuge and plate and frame pressure filtration,  filtrate quality is poor, soluble protein, sugar, peptide, pigment and other ...


    By Jiangsu Jiuwu Hi-tech Co

  • Air and steam stripping using V-tex technology - Case Studies

    SB Worthing Recovery of Methylene Dichloride (MDC) Overheads Stream passes 2 condensers, into phase separator and MDC recovered Aqueous phase recycled to V-texTM Monsanto - Ruabon Recovers 50t/yr Trichloroethylene from aqueous hydrochloride waste stream SB Iso-Propyl Alcohol ...

  • Antibiotics Fermentation Broth Clarification

    Cephalosporin Cephalosporin is the second class of β-Lactamase found in nature following by penicillin. Any of various broad-spectrum antibiotics, closely related to the penicillins, which were originally derived from the fungus Cephalosporium acremonium. It has many advantages of high efficiency, broad-spectrum, low toxicity and enzyme-resistance which has been developed four new products ...


    By Jiangsu Jiuwu Hi-tech Co

  • 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 ...


    By ENVEA

  • Ceramic membranes in the pharmaceuticals industry - Case Study

    GlaxoSmithKline, the pharmaceuticals giant, cut operating costs at its drugs plant in Worthing UK, by replacing polymer with Star-Sep™ Ceramic Membranes The installation of a Star-Sep™ Ceramic Membrane system was a critical, yet proportionally low-cost component of GlaxoSmithKline’s anti-biotic drug processing system, enabling a multi-million pound ...


    By Mantec Filtration

  • Analyzing ionic liquids using ATR | Spectroscopy Solutions

    Research into ionic liquid-based catalyst systems aim to improve the duty cycle, rate of metal loss and yield efficiency of large scale reactions using continuous flow reactors, such as those often used in the pharmaceutical industry. This article details the issues that are faced by the industry and a recent study that uses FTIR-ATR ...


    By Specac Limited

  • CombiFlash Gradient Methods

    Abstract Purifying compounds require two processes: the actual purification and drying the sample afterwards. Several gradient methods were evaluated on a reaction mixture to evaluate run time and number of fractions to collect the desired compound. Reducing the volume of fractions is important to reduce the time required to dry the purified material. On large runs, drying time may be ...


    By Teledyne ISCO

  • Rotary Kiln Incineration Plant - Case Study

    The R1200 plant was installed in the early 00’s in Macau. The fully integrated system boasts a burn rate if 1200kg per hour and accepts a variety of different waste streams that include, clinical waste, pharmaceutical waste, liquid waste that includes solvents, waste oil, shredded tyres and well as some livestock as large as horses. The rotary kilns incineration principle is defined by one ...

  • Development of a preconcentration method for indomethacin in natural waters using dispersive liquid–liquid microextraction based on solidification of floating organic drop technique

    A new dispersive liquid–liquid microextraction method based on the solidification of a floating organic drop was developed for the preconcentration of indomethacin in natural waters followed by ultraviolet-visible (UV-Vis) spectrophotometric detection. 1-undecanol and ethanol were used as the extraction solvent and the disperser solvent, respectively. An investigation of the main experimental ...


    By IWA Publishing

  • Loading capacity of silica flash cartridges

    FlashPure Cartridges Optimizing flash chromatography requires finding the ideal cartridge and conditions for a given sample. As the goal is to prepare the largest possible amount of pure sample in the shortest possible time and with a minimum use of solvent, it is crucial to know how high loadings affect the separation for different cartridges. Unlike analytical chromatography, preparative ...


    By BÜCHI Labortechnik AG

  • Rotavapor R-220 for drying and distillation - Case Study

    Customer: AstraZeneca Pharma India Ltd., India AstraZeneca Pharma India Ltd (AZPIL) is a subsidiary of AstraZeneca, UK. AZPIL is engaged in the manufacturing of formulations and API’s. Application: We mainly handle compounds which are very temperature sensitive. Various reaction products at different stages of production are to be ...


    By BÜCHI Labortechnik AG

  • EPA Compliant Due to Sufficient Solvent Recovery - Case Study

    Customer: Con-Test Analytical Laboratories, USA Con-Test Analytical Laboratory provides environmental and hygiene analytical services with the capability of analyzing nearly all water, air, soil, and solid materials. Application: US EPA 608 US EPA Method 608 covers the determination of certain organochlorine pesticides found in industrial waste ...


    By BÜCHI Labortechnik AG

  • VOC Abatement Technology Saves on Operating Costs for Aerospace Paint Finishing

    For over 10 years, a Canadian aircraft manufacturer has saved over $500,000 annually in fuel and electricity consumption by using Munters rotor concentrators to control solvent emissions from its facility’s paint booths. Before purchasing Munters equipment in 2002, the manufacturer struggled with the inconvenience of having their aircraft systems flown to be painted in subcontracted paint ...


    By Munters

  • Effects of pH and coexisting chemicals on photolysis of perfluorooctane sulfonate using an excited xenon dimer lamp

    Vacuum ultraviolet (VUV) photolysis at the wavelength of 172 nm in a sulfate solution was introduced as a more efficient process for perfluorooctane sulfonate (PFOS) degradation than ultraviolet (UV) photolysis at 254 nm. The effects of pH and coexisting chemicals on VUV photolysis under the coexistence of 100 mM sulfate were investigated. VUV irradiation successfully degraded PFOS, and the ...


    By IWA Publishing

  • Use of process analyzers in cement plants solutions from Siemens – Case Study

    Cement is a hydraulic binding agent to produce concrete. Due in part to the fast growth of the Asian economies, world consumption of cement is currently growing at an annual rate of 8%. Therefore, cement production is expanding and, at the same time, production processes need to be optimized to ensure maximum efficiency. In this context, process analytics plays an important role: It determines ...

  • Treatment of high strength aqueous wastes in a thermophilic aerobic membrane reactor (TAMR): performance and resilience

    In the present work, the thermophilic aerobic membrane reactor technology was studied for the treatment of high strength aqueous wastes mainly containing dyes, surfactants and solvents. The thermophilic biomass resilience and the process stability under critical conditions (such as rapid rise of the mixed liquor pH, oxygen supply interruption, etc.) were also evaluated. The experimental work ...


    By IWA Publishing

  • Aquaporin Hollow Fiber FO Membrane Modules (AQPHFFO2)

    Aquaporin hollow fiber membrane modules for forward osmosis studies are now available from Sterlitech. AQP HFFO2 is a cross flow membrane module containing Aquaporin Inside hollow fiber membranes. With an Aquaporin Inside coating on the interior surface of the hollow fibers (lumen side), the feed solution is circulated in the lumen and the draw solution is circulated in the shell. ...


    By Sterlitech Corporation

  • A history of chemically resistant membranes

    The use of polymeric membranes for filtration of non-aqueous solutions started around 1960 and has been developed significantly since then [1]. Today, non-aqueous membrane filtration applications in chemical and pharmaceutical processing account for more than 25% of the global total polymeric membrane market [2]. ...


    By Sterlitech Corporation

  • Photodegradation of the benzothiostrobin in solution and on soil and glass surface

    The photolytic characteristics of benzothiostrobin were investigated in solution and on soil and glass surface. The main influence factors such as initial concentration, organic solvent and the aqueous environmental substances, including NO2–, NO3–, Fe2+, Fe3+, H2O2 and turbidity were investigated. Three photodegradation ...


    By IWA Publishing

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