摘要:
PROCESS FOR THE PRODUCTION OF 2-MERCAPTO-BENZOTHIAZOLE BY REACHING ANILINE AND ELEMENTARY SULFUR WITH TRITHIANE AT AN ELEVATED TEMPERATURE AND PREFERABLY UNDER SUPERATMOSPHERIC PRESSURE. THE PRODUCT IS OBTAINED IN GOOD YIELDS AND PURITY AND IS KNOWN TO BE USEFUL AS A VULCANIZATION ACCELERATOR.
摘要:
Flame-resistant metal-containing polyacyloxalamidrazone filaments and a process for their production in which the filaments are treated with one or more solvent-soluble compounds of at least one of the metals zinc, tin, cadmium, barium, strontium, calcium, antimony and tantalum for a period of time sufficient to render the filaments resistant to flame.
摘要:
A PROCESS FOR THE PRODUCTION OF 2,2''-BIS-(U,3,4-THIADIAZOLNE-5-THIONE) BY REACTING OXALIC ACID BISAMIDRAZONE WITH CARBON DISULFIDE, PREFERABLY IN WATER, AT APPROXIMATELY ROOM TEMPERATURE UP TO MODERATELY ELEVATED TEMPERATURES. THE PRODUCTS IS USEFUL IN LITHOGRAPHIC PRINTING AND PHOTOGRAPHIC DEVELOPMENT.
摘要:
AN AQUEOUS ALKALI METAL HYDROXIDE SOLUTION IN WHICH THERE IS DISSOLVED A POLYVACYLAXAMIDRAZONE, THE RESULTING ALKALINE POLYMER SOLUTION BEING USEFUL FOR THE PRODUCTION OF HEAT-RESISTANT SHAPED PRODUCTS SUCH AS FILAMENTS, FILM, COATING AND THE LIKE. A PROCESS FOR PRODUCING THESE PRODUCTS INCLUDES THE STEPS OF FORMING THE POLYMER SOLUTION INTO A FILAMENT OR FILM IN CONTACT WITH AN ACID PRECIPITATION BATH, WASHING THE PRECIPITATE AND SUBSEQUENTLY HEATING TO A TEMPERATURE OF APPROXIMATELY 230-350*C.
摘要:
Process for the catalytic production of dimethyl sulfide in which dimethyl ether and hydrogen sulfide can be reacted in about equimolar amounts to achieve almost quantitative yields of dimethyl sulfide by carrying out the reaction in the presence of a catalyst consisting essentially of aluminum oxide having a superimposed layer of up to about 10 percent by weight of silica applied thereto.
摘要:
Process for producing trichloromethane-sulfenyl chloride (CCl3SCl) wherein carbon disulfide is reacted with chlorine on activated carbon at temperatures of about -5* C. to +100* C.
摘要:
A METAL-CONTAINING POLYACYLOXALAMIDRAZONE IN WHICH THE METAL IS CHEMICALLY BOUND TO THE POLYMER TO PROVIDE A HEAT-RESISTANT COLORED COMPOSITION USEFUL AS A PIGMENT OR A SUPPORTED METAL CATALYST.
摘要:
Ammonia and carbon disulfide are reacted at about 60*-100* C. on an activated carbon, preferably in a continuous manner permitting high yields of a relatively pure ammonium thiocyanate or the corresponding alkali metal and alkaline earth metal thiocyanates.
摘要:
PROCESS FOR THE CATALYTIC PRODUCTION OF DIMETHYL SULFIDE IN WHICH METHANOL AND HYDROGEN SULFIDE CAN BE REACTED IN ABOUT EQUIMOLAR AMOUNT TO ACHIEVE ALMOST QUANTITATIVE YIELDS OF DIMETHYL SULFIDE BY CARRYING OUT THE REACTION IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF ALUMININUM OXIDE HAVING A SUPERIMPOSED LAYER OF UP TO ABOUT 10% BY WEIGHT OF SILICA APPLIED THERETO.