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.:
Date of Patent:
Mar. 21, 2006
Filed:
Mar. 30, 2004
Rajinder Nath Vohra, Bhavnagar, IN;
Pushpito Kumar Ghosh, Bhavnagar, IN;
Ashokkumar Bhagvanjibhai Kasundra, Bhavnagar, IN;
Himanshu Labhshanker Joshi, Bhavnagar, IN;
Rohit Harshadray Dave, Bhavnagar, IN;
Maheshkumar Ramniklal Gandhi, Bhavnagar, IN;
Kaushik Jethalal Langalia, Bhavnagar, IN;
Koushik Halder, Bhavnagar, IN;
Sohan Lal Daga, Bhavnagar, IN;
Ramjibhai Devjibhai Rathod, Bhavnagar, IN;
Hasina Hajibhai Deraiya, Bhavnagar, IN;
Purashottambhai Ravajibhai Jadav, Bhavnagar, IN;
Vadakke Puthoor Mohandas, Bhavnagar, IN;
Abdulhamid Usmanbhai Hamidani, Bhavnagar, IN;
Rajinder Nath Vohra, Bhavnagar, IN;
Pushpito Kumar Ghosh, Bhavnagar, IN;
Ashokkumar Bhagvanjibhai Kasundra, Bhavnagar, IN;
Himanshu Labhshanker Joshi, Bhavnagar, IN;
Rohit Harshadray Dave, Bhavnagar, IN;
Maheshkumar Ramniklal Gandhi, Bhavnagar, IN;
Kaushik Jethalal Langalia, Bhavnagar, IN;
Koushik Halder, Bhavnagar, IN;
Sohan Lal Daga, Bhavnagar, IN;
Ramjibhai Devjibhai Rathod, Bhavnagar, IN;
Hasina Hajibhai Deraiya, Bhavnagar, IN;
Purashottambhai Ravajibhai Jadav, Bhavnagar, IN;
Vadakke Puthoor Mohandas, Bhavnagar, IN;
Abdulhamid Usmanbhai Hamidani, Bhavnagar, IN;
Council of Scientific and Industrial Research, New Delhi, IN;
Abstract
The present invention relates to recovery of industrial grade potassium chloride and low sodium edible salt from bittern as part of an integrated process. The process comprises, mixing low sulphate concentrated feed bittern (a by-product of salt industry) of density 31.5 to 32.5° Be (sp.gr. 1.277–1.289) with high density end bittern of density 36.5 to 37.5° Be' (sp.gr. 1.336–1.35), thereby producing low sodium carnallite, from which industrial grade potassium chloride is produced. The resultant bittern is evaporated in forced evaporation system, thereby producing crude carnallite, from which low sodium salt that would be beneficial to persons suffering from hypertension is produced. When sulphate-rich bittern is used, such bittern is desulphated with CaClthat is generated from carnallite decomposed liquor through reaction with lime, and wherein low BO-containing Mg(OH)is a by-product. The entire content of potassium in feed bittern is recovered in the process of the invention.