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:
Jan. 13, 1987
Filed:
Feb. 01, 1985
David P Chynoweth, St. Charles, IL (US);
Institute of Gas Technology, Chicago, IL (US);
Abstract
A process for production of mixed calcium-magnesium organic acid salts useful for de-icing obtained by anaerobic hydrolysis-fermentation of organic carbonaceous solids by a biologically active mixture of hydrolysis-fermentation anaerobes in which the growth of methanogenic bacteria is suppressed and calcium-magnesium oxygen containing compound is added to the anaerobic digester to control pH and to react with the fermentation acid products to form a mixture of calcium-magnesium organic acid salts. The calcium-magnesium organic acid salts may be readily recovered in solid form for economical utilization in roadway de-icing. The anaerobic digestion is conducted under a naturally obtained mixed microbial population in the presence of the calcium-magnesium oxide containing compound, eliminating the need for pure microbiological strains and sterilization or pasteurization of feed materials.