PT68717A - A method for separating and purification acrylic acid - Google Patents
A method for separating and purification acrylic acidInfo
- Publication number
- PT68717A PT68717A PT68717A PT6871778A PT68717A PT 68717 A PT68717 A PT 68717A PT 68717 A PT68717 A PT 68717A PT 6871778 A PT6871778 A PT 6871778A PT 68717 A PT68717 A PT 68717A
- Authority
- PT
- Portugal
- Prior art keywords
- separating
- acrylic acid
- purification
- purification acrylic
- acid
- Prior art date
Links
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 title 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
- G01S3/7803—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
- G01D18/002—Automatic recalibration
- G01D18/006—Intermittent recalibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
- G01D5/30—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/857,157 US4187422A (en) | 1977-12-05 | 1977-12-05 | Internal reference for stellar tracker |
Publications (1)
Publication Number | Publication Date |
---|---|
PT68717A true PT68717A (en) | 1978-11-01 |
Family
ID=25325325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT68717A PT68717A (en) | 1977-12-05 | 1978-10-30 | A method for separating and purification acrylic acid |
Country Status (6)
Country | Link |
---|---|
US (1) | US4187422A (pt) |
AT (1) | AT367388B (pt) |
IN (1) | IN148435B (pt) |
NO (1) | NO784054L (pt) |
PT (1) | PT68717A (pt) |
YU (1) | YU273878A (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3120344C2 (de) * | 1980-06-28 | 1982-12-30 | Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg | Verfahren und Vorrichtung zur Funktionsprüfung von Ortungsanlagen |
CA2001070A1 (en) * | 1988-10-24 | 1990-04-24 | Douglas B. George | Telescope operating system |
FR2713785B1 (fr) * | 1993-12-10 | 1996-03-01 | Centre Nat Etd Spatiales | Système de repérage d'orientation d'un instrument d'observation. |
FR2724013B1 (fr) * | 1994-08-29 | 1996-11-22 | Centre Nat Etd Spatiales | Systeme de reperage d'orientation d'un instrument d'observation. |
EP1050762A1 (de) * | 1999-05-05 | 2000-11-08 | Contraves Space AG | Verfahren und Vorrichtung zum Kalibrieren der Ab-Lage eines Empfangsstrahls in einem Terminal von seiner Soll-Lage sowie Verwendung der Vorrichtung |
US20080174863A1 (en) * | 2007-01-24 | 2008-07-24 | Whorton Mark S | Star Identification and Alignment System |
US8169623B2 (en) * | 2009-09-01 | 2012-05-01 | Raytheon Company | Optical apparatus and method for measuring the attitude of an object in outer space |
WO2021087304A1 (en) * | 2019-11-01 | 2021-05-06 | Stryker Corporation | Systems and methods for image reorientation for endoscopic imaging |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349664A (en) * | 1962-05-22 | 1967-10-31 | North American Aviation Inc | Optical collimation device |
US3990796A (en) * | 1974-07-31 | 1976-11-09 | The United States Of America As Represented By The Secretary Of The Navy | Optical measurement of the difference in alignment between reference frames |
-
1977
- 1977-12-05 US US05/857,157 patent/US4187422A/en not_active Expired - Lifetime
-
1978
- 1978-10-06 IN IN741/DEL/78A patent/IN148435B/en unknown
- 1978-10-30 PT PT68717A patent/PT68717A/pt unknown
- 1978-11-22 YU YU02738/78A patent/YU273878A/xx unknown
- 1978-12-04 NO NO784054A patent/NO784054L/no unknown
- 1978-12-05 AT AT0868178A patent/AT367388B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
YU273878A (en) | 1982-06-30 |
AT367388B (de) | 1982-06-25 |
NO784054L (no) | 1979-06-06 |
IN148435B (pt) | 1981-02-21 |
US4187422A (en) | 1980-02-05 |
ATA868178A (de) | 1981-11-15 |
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