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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10919833 B1

PDFFull Text
Date of Patent:
Feb. 16, 2021

Filed:

Jul. 18, 2019

Synthesis of sodium formate and drilling fluid comprising the same

Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Abdullah Al-Yami, Dhahran, SA;

Vikrant Wagle, Abqaiq, SA;

Zainab Alsaihati, Saihat, SA;

Ali Alsafran, Dhahran, SA;

Nasser Alalhareth, Ras Tanura, SA;

Abdulaziz Alhelal, Alhsa Hofuf, SA;

Assignee:

Saudi Arabian Oil Company, Dhahran, SA;

Attorney:

Dinsmore & Shohl LLP

Primary Examiner:

Yevgeny Valenrod

Assistant Examiner:

Blaine G Doletski

Int. Cl.
CPC ...
C07C 51/41 (2006.01); B01J 19/24 (2006.01); C07C 51/43 (2006.01); C07C 51/47 (2006.01); C07C 51/48 (2006.01); C09K 8/035 (2006.01);
U.S. Cl.
CPC ...
C07C 51/412 (2013.01); B01J 19/24 (2013.01); C07C 51/43 (2013.01); C07C 51/47 (2013.01); C07C 51/48 (2013.01); C09K 8/035 (2013.01); B01J 2219/00186 (2013.01);
Abstract

A method of synthesizing sodium formate. The method includes reacting acetaldehyde, formaldehyde, and NaOH to form a raw reaction solution which includes pentaerythritol and sodium formate. The method also includes passing the raw reaction solution to an evaporator to reduce the water content of the raw reaction solution and remove any unreacted formaldehyde from the raw reaction solution to form a concentrated reaction solution and cooling the concentrated reaction solution to form pentaerythritol crystals in suspension while retaining sodium formate in solution. Further, the method includes filtering the cooled concentrated reaction solution to remove the pentaerythritol crystals and create a mother liquor comprising the sodium formate in solution and separating the sodium formate from the mother liquor.

Find Patent Forward Citations

Al-Yami, Abdullah. (2021). Synthesis of sodium formate and drilling fluid comprising the same (U.S. Patent No. 10919833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10919833

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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