摘要:
A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from Acidovorax facilis 72W (ATCC 57746). Glycolic acid is recovered in the form of the acid or salt from the aqueous ammonium glycolate solution using a variety of methods described herein.
摘要:
Disclosed is a process for the preparation of Li4Ti5O12 by a novel, low-cost route from titanium tetrachloride. Material prepared by this new process has properties (such as purity, particle size and tap density) that are useful for good performance in a lithium ion battery.
摘要:
The present invention relates to novel 1,3-diimine copper complexes and the use of 1,3-diimine copper complexes for the deposition of copper on substrates or in or on porous solids in an Atomic Layer Deposition process. This invention also provides a process for making amino-imines and novel amino-imines.
摘要:
Methods of depositing a copper film onto the surface of a substrate from a supercritical solution containing copper-containing precursors having monoanionic bidentate and neutral monodentate ligands, which comprise contacting the substrate with the solution; heating the substrate to a temperature between about 60° C. and less than 150° C.; and forming a copper-containing film on at least a portion of the substrate surface. Also provided are copper-containing precursor compositions used therein.