Abstract:
An electrical energy storage device exhibiting high energy storage capacity comprises a novel boron carbide cathode and an aluminum-lithium alloy anode, the pair of electrodes being immersed in or in contact with a molten salt electrolyte composed of a lithium halide and one or more of the halides of the other alkali metals or the alkaline earth metals or combinations thereof.
Abstract:
Catalysts are provided which are useful in the oxidation of olefins to aldehydes and conjugated dienes and in ammoxidation of olefins to nitriles. The catalysts comprise the combined oxides of uranium and arsenic on a catalyst support and the combined oxides of uranium and arsenic promoted by molybdenum, boron, vanadium, tin, nickel, bismuth, chromium, iron, manganese, zinc, tungsten, antimony, cerium, cobalt or rhenium.
Abstract:
Polymer resins which are high softening and function as gas and vapor barrier materials are composed of an olefinically unsaturated nitrile, such as acrylonitrile, an ester of an olefinically unsaturated carboxylic acid, such as methyl acrylate, and indene.
Abstract:
The present invention relates to a method for stabilizing nitrile resins against thermal discoloration by the inclusion of acrylamide in amounts of from 0.1 to 1.5 parts by weight per 100 parts of resin.
Abstract:
Maleic anhydride is made from n-butane or n-butene in a tubular reactor having an undivided reaction zone which contains two different catalysts-the first catalyst converts at least part of the n-butane or n-butene to butadiene and the second catalyst converts at least part of this product to maleic anhydride.
Abstract:
Very desirable oxidation catalysts are prepared by impregnating a catalytic oxide matrix containing at least cobalt and molybdenum, magnesium and molybdenum, nickel and mulybdenum, manganese and molybdenum with iron, bismuth, tellurium or a mixture thereof.
Abstract:
New chemical compounds useful as intermediates are 5-(1-methyl3,4,5,6,7,7-hexahalo-norborn-4-ene-1)-isophthalic acid and 4-(1methyl-3,4,5,6,7,7-hexaholo-norborn-4-ene-1)-orthophthalic acid, formed by oxidation of the primary or secondary alkyl groups containing from one to ten carbon atoms on the benzene ring of the Diels-Alder adduct of equimolecular amounts of hexahalocyclopentadiene and either 3,5-dialkyl- Alpha -methylstyrene and 3,4-dialkyl- Alpha -methylstyrene. The acyl derivatives of these intermediates do not burn or support combustion and are also useful as extreme-pressure additives in lubricating oils. The following acyl derivatives of 5-(1-methyl3,4,5,6,7,7-hexachloro-norborn-4-ene-1)-isophthalic acid have been prepared: the dichloride, diamide, dianilide, diethylester, polyphenylester, poly(chlorophenyl) ester, poly-ethylene glycol ester, diphenylthioester, di-methallylester, and unsaturated polyester. Also, the co-polyphenylesters of 5-(1-methyl3,4,5,6,7,7-hexachloro-norborn-4-ene-1)- isophthalic acid and terephthalic or adipic acid; the polyamide of 5-(1-methyl3,4,5,6,7,7-hexachloro-norborn-4-ene-1)-isophthalic acid and 1,6hexanediamine; the copolyamides of 5-(1-methyl-3,4,5,6,7,7hexachloronorborn-4-ene-1) isophthalic acid and 1,6-hexanediamine and terephthalic acid or adipic acid; the co-polyethylene glycol ester of 5-(1-methyl-3,4,5,6,7,7-hexachloro-norborn-4-ene-1) isophthalic acid and terephthalic acid; and a phosphorus adduct of 5-(1-methyl-3,4,5,6,7,7- hexachloro-norborn-4-ene-1) have been prepared.
Abstract:
Rice hulls are floated on water contaminated with oil to absorb the oil which is then removed by skimming the combined oil-rice hull material from the water.
Abstract:
An improved plastic extrusion blow molding die head is described which permits the formation of extruded parisons having controlled wall thickness by partial restriction of the entering flow of the molten plastic material into the die head.
Abstract:
Catalysts containing phosphorus, vanadium and molybdenum have been found to be especially effective for the oxidation of methacrolein with molecular oxygen to obtain methacrylic acid. The catalysts may be optionally promoted with Bi, As, B, Ce, Cr, Ag, Fe, W, Pb, Mn, Tl, Te, Ni, Nb, B, Sn and/or Cu.