Featured patents

Dual-Mode Dividing Wall Column
US 08852405 B2, Oct. 7, 2014, With Fractional Condensation of Vapor Outside Still, Jang Ku Lee et al. / LG Chem, Ltd. (Seoul, KR)
A dual-mode dividing wall column that is capable of mode switching between…

Method and System for Disposal of Furfural Wastewater and Method and System for Furfural Production
US 08764947 B2, July 1, 2014, Addition of Material to Distilland to Inhibit or Prevent Reaction or to Stabilize, Shaofeng Gao et al. / Jinan Shengquan Group Share-Holding Co., Ltd. CN
A method for disposal of furfural wastewater, comprising:…

Method for Purifying Acetone
US 08741109 B2, June 3, 2014, Of temperature or pressure, Ilya Yurievich Krupenko et al. / Sabic Innovative Plastics IP B.V. (Bergen op Zoom, NL)
A method for purifying a crude acetone raw material containing low molecular…

Method and Apparatus for Separating Fluid Mixtures
US 08691056 B2, April 8, 2014, Convective Distillation With Normally Gaseous Medium, e.g., Air, Dick Burton et al. / Distillation Technologies, Inc. (Lee's Summit, US)
A method for separating a liquid from a liquid mixture comprising:…

Processes for the Purification of Trichlorosilane or Silicon Tetrachloride
US 08691055 B2, April 8, 2014, Including step of adding catalyst or reacting material, Gianfranco Ghetti / MEMC Electronic Materials SpA IT
A process for purifying technical grade trichlorosilane or technical grade…

Method for Distilling a Starting Material and Installation for Carrying Out Said Method
US 08617359 B2, Dec. 31, 2013, Of temperature or pressure, Markus Lehmann et al. / (Wohlen, CH)
A method for distilling a starting material, which consists of a liquid to be…

Fluid Fractionation Process and Apparatus
US 08591704 B2, Nov. 26, 2013, Of concentration, Stephen Shelley / Creative Water Technology Ltd. (Victoria, AU)
A fractionation process for producing at least two concentration fractions…

Process for the Separation of a Hydrocarbon-Containing Feed Stream
US 08557087 B2, Oct. 15, 2013, With Measuring, Testing or Inspecting, Denis Mignon / Total Petrochemicals Research Feluy (Seneffe (Feluy), BE
A process for the separation of a hydrocarbon-containing feed stream comprising…

Method of Dehydrating Tolylenediamine and Dehydrator
US 08524047 B2, Sept. 3, 2013, From organic compound, Masaaki Sasaki et al. / Mitsui Chemicals Inc. (Tokyo, JP)
A method of dehydrating tolylenediamine, comprising:…

Method of Determining Flood Points of Packed Columns
US 08449727 B2, May 28, 2013, Of temperature or pressure, Brian Hanley / Aspen Technology, Inc. (Burlington, US)
A method of determining a flood point of a packed column for liquids and vapors…

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