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Class Information
Number: 203/1
Name: Distillation: processes, separatory > With measuring, testing or inspecting
Description: Processes combined with the positive step of visually, chemically or physically determining some chemical or physical characteristic or property of the feed, vapor, residue or condensate.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619126 |
Method for obtaining crude 1,3-butadiene from a C.sub.4 fraction |
Nov. 17, 2009 |
| 7597784 |
Pressurized vapor cycle liquid distillation |
Oct. 6, 2009 |
| 7594979 |
Purification of propylene oxide resulting from epoxidation of propylene with hydrogen peroxide |
Sep. 29, 2009 |
| 7588666 |
Compact rectifying unit for separation of mixed fluids and rectifying process for separation of such mixed fluids |
Sep. 15, 2009 |
| 7556716 |
Method for recording the boiling curve of liquids and device for carrying out the method |
Jul. 7, 2009 |
| 7531065 |
Distillation apparatus |
May. 12, 2009 |
| 7501045 |
Method of producing and separating dinitrile compounds |
Mar. 10, 2009 |
| 7497931 |
Distillative preparation of IPDA having a high cis/trans isomer ratio |
Mar. 3, 2009 |
| 7473338 |
Distillation apparatus for readily polymerizable compound |
Jan. 6, 2009 |
| 7468119 |
Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine |
Dec. 23, 2008 |
| 7465376 |
Method and device for treating liquids |
Dec. 16, 2008 |
| 7431804 |
Method for carrying out the distillation or reactive distillation of a mixture containing at least one toxic constituent |
Oct. 7, 2008 |
| 7393436 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers |
Jul. 1, 2008 |
| 7390380 |
Processing of shipboard wastewater |
Jun. 24, 2008 |
| 7368040 |
Apparatus for and method of heating fluid and distilling fluid |
May. 6, 2008 |
| 7368039 |
Distiller employing cyclical evaporation-surface wetting |
May. 6, 2008 |
| 7347918 |
Energy efficient evaporation system |
Mar. 25, 2008 |
| 7329330 |
Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone |
Feb. 12, 2008 |
| 7326323 |
High capacity purification of thermally unstable compounds |
Feb. 5, 2008 |
| 7300555 |
Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column |
Nov. 27, 2007 |
| 7279075 |
Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers |
Oct. 9, 2007 |
| 7276139 |
Method for concentrating solution |
Oct. 2, 2007 |
| 7264696 |
Dividing-wall column with feed in whole or in part in the vaporous state and/or side stream take off in whole or in part in the vaporous state |
Sep. 4, 2007 |
| 7258766 |
Method for collecting acrylic acid |
Aug. 21, 2007 |
| 7255777 |
Distillation system |
Aug. 14, 2007 |
| 7217343 |
Point of use water purification method and apparatus |
May. 15, 2007 |
| 7208570 |
Method of refining tall oil |
Apr. 24, 2007 |
| 7169267 |
Method and device for carrying out the distillative separation of C.sub.5+ cuts |
Jan. 30, 2007 |
| 7153396 |
Rotating evaporator with process-dependent rotating speed regulation |
Dec. 26, 2006 |
| 7132038 |
Method and device for obtaining 1,3 pure butadiene from 1,3 raw butadiene by distillation |
Nov. 7, 2006 |
| 7128813 |
Process for manufacturing high purity methacrylic acid |
Oct. 31, 2006 |
| 7107194 |
High fidelity low-order modeling for multi-staged separation processes based upon the compartmental approach |
Sep. 12, 2006 |
| 7048833 |
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins |
May. 23, 2006 |
| 7029556 |
Method for purifying (meth)acrylic monomers by distillation |
Apr. 18, 2006 |
| 7001490 |
Purification of ammonia by distillation |
Feb. 21, 2006 |
| 6984292 |
Water treatment process for thermal heavy oil recovery |
Jan. 10, 2006 |
| 6936140 |
Water distillation system |
Aug. 30, 2005 |
| 6926809 |
Device and process for the purification of cyanuric chloride |
Aug. 9, 2005 |
| 6849155 |
Concentrator |
Feb. 1, 2005 |
| 6846389 |
Method for distillative separation of mixtures containing tetrahydrofuran, .gamma.-butyrolactone and/or 1,4-butanediol |
Jan. 25, 2005 |
| 6805774 |
Apparatus and process for purifying a liquid by thermoelectric peltier means |
Oct. 19, 2004 |
| 6758945 |
Method and apparatus for quenching the coke drum vapor line in a coker |
Jul. 6, 2004 |
| 6733636 |
Water treatment method for heavy oil production |
May. 11, 2004 |
| 6685802 |
Process and apparatus for removing dissolved and undissolved solids from liquids |
Feb. 3, 2004 |
| 6682633 |
Apparatus for cocurrent fractional distillation |
Jan. 27, 2004 |
| 6666956 |
Method for distilling polymerizable compound or liquid containing polymerizable compound |
Dec. 23, 2003 |
| 6635149 |
Water purification system |
Oct. 21, 2003 |
| 6632329 |
Distillation apparatus and distilling method |
Oct. 14, 2003 |
| 6605190 |
Staged optimal externally-controlled systems and method thereof |
Aug. 12, 2003 |
| 6582563 |
Water purification system |
Jun. 24, 2003 |
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