The synthesis of most elastomers is carried out either by solution or emulsion polymerization. After the polymerization step, the polymer is separated from the solvent or emulsifying agents. This separation requires several process steps including coagulation, stripping, various mechanical separation stages, and finally drying. Beyond that, the existing technologies are energy consuming, waste solvent must be incinerated, and the installation of main and ancillary equipment occupies large spaces. The disadvantages of the solution and emulsion polymerization processes can be solved with the direct devolatilization process of elastomers contained in polymer solutions or polymer emulsion.
CPVC is an attractive alternative for wastewater treatment facilities because of its corrosion resistance, mechanical strength, and life-cycle economics. Here’s a real-world look at its strengths and capabilities.
An ethanol developer's speed to market, permitting expenses, material logistics, energy source, and selected co-products all relate to the dryer type and air pollution control technology decisions.
It's essential to understand material compatibility issues and your options when selecting pressure and flow control devices for calibration and sampling of reactive gases in the chemical process and quality control laboratory.
Since pipettes are subject to silent and random failures, the most important aspect of pipette quality control is maintaining a calibration frequency that achieves sufficiently high reliability. Here are step-by-step guidelines for you to use.
A white paper titled "Implementing Foundation Fieldbus H1 Networks in Hazardous Areas" by Bruce Bradley, PE, of Boehringer Ingelheim Chemicals Inc., Petersburg, VA, provides a rigorous discussion of hazardous environments, the standards and practices involved, and considerations for installing a Foundation Fieldbus H1 system.
A new booklet that provides a synopsis of the R&D tax credit in everyday language, including what expenses qualify and the documentation required, is being offered by CCR Cost Recovery Services LLC, Westborough, MA.
Eriez, Erie, PA, is offering a free brochure on its new line of ProGrade magnetic separators.
A brochure describing blowers and compressors, including pre-assembled, skid-mounted blower units in special noise abatement enclosures, is available from Dresser Roots, Houston, TX.
MTS Systems Corp., Sensors Division, Cary, NC, has a new product catalog for liquid level applications such as oil and gas, food and beverage, pharmaceutical, and specialty chemical.
For laboratory personnel who perform environmental trace element analysis, it can be a difficult task to stay up-to-date with changes in legislation, regulation, methodology, and research.
Applied Industrial Technologies, Cleveland, OH, has announced the availability of its 07/08 product catalog, which includes information on nearly 40,000 parts from more than 100 suppliers, including 20,000 bearings and power transmission parts and almost 9,000 fluid power products.
Turck, Minneapolis, MN, has released a catalog of more than 600 pages on inductive, capacitive, analog, and ultrasonic proximity sensors.
Oseco, Broken Arrow, OK, has issued the third edition of its CD catalog with expanded language capabilities and content.
What qualities should a filtration system possess? The three keys to success at one wastewater treatment plant are simplicity of design, cleaning efficiency, and reliability due to few moving parts.