Abstract:
A UV-crosslinkable polyacrylate pressure-sensitive adhesive composition having a polyacrylate having photoinitiator units incorporated therein by polymerization and being produced by a free-radical solvent-free polymerization process.
Abstract:
Equipment and a process for upgrading oil are provided to produce a refined oil lighter than a material oil by cracking the heavier material oil with the addition of hydrogen under relatively relaxed production conditions. An equipment for upgrading oil according to one aspect of the invention includes an emulsion making portion (10), a refinery tank portion (20), and a heating portion (30), and configured to make an emulsion (E) by emulsifying ionized alkaline water (A) in a material oil (O1) in the emulsion making portion (10), and to drop droplets (D) of the emulsion (E) onto the surface (S) of a heat medium (O2) in the refinery tank portion (20) heated by the heating portion (30).
Abstract:
Process for the preparation of ethylene homopolymers or copolymers in a high pressure reactor with at least two spatially separated initiator injection points by polymerizing ethylene and optionally further monomers in the presence of at least two different mixtures of free-radical polymerization initiators at from 100° C. to 350° C. and pressures in the range of from 160 MPa to 350 MPa, wherein the process comprises the following steps: a) providing at least two different initiators as solution in a suitable solvent or in liquid state, b) mixing the initiators and optionally additional solvent in at least two static mixers and c) feeding each of the mixtures to a different initiator injection point of the high pressure reactor, and apparatus for feeding initiator mixtures to a high pressure reactor with at least two spatially separated initiator injection points.
Abstract:
A reactor for the wet-chemical co-precipitation of oxide powders includes a cylindrical structure having first and second ends and a lumen extending the length of the tube. A central axis extends through the lumen. The first end is closed. The reactor also includes a first inlet port disposed proximal to the first end of the cylindrical structure and providing access through the cylindrical structure to inject a first reactant solution. The reactor further includes a second inlet port disposed proximal to the first end of the cylindrical structure and providing access through the cylindrical structure to inject a second reactant solution. The first and second inlet ports are disposed on opposite sides of the cylindrical structure and are coaxial relative to the central axis.
Abstract:
The present invention involves a system and method of making ferric chloride with reduced amounts of hydrochloric acid for water treatment. The method comprises preparing a reactant batch comprising ferric oxide and hydrochloric acid at a predetermined molar ratio. The method further includes mixing the reactant batch with an impeller rotating between about 60 and 150 revolutions per minute. The method further includes maintaining the reactant batch at a temperature between about 70° Fahrenheit and 180° Fahrenheit. The method forms a reaction product including ferric chloride and a reduced amount of hydrochloric acid.
Abstract:
Method of metering at least one solid, particulate catalyst into a reactor containing a fluidized bed (11) of particles in an at least partly gaseous medium, in which the catalyst is metered discontinuously at prescribed time intervals into the fluidized bed (11) at at least one metering point (10). According to the present invention, a fluid stream is firstly introduced into the reactor (5) so that a region having a reduced particle density is formed in the fluidized bed (11) around the metering point (10) and the catalyst is subsequently metered into this region. As a result of the prior introduction of a fluid stream (“preblowing”) before the actual introduction of the catalyst, the catalyst can penetrate significantly deeper into the fluidized bed from the metering point due to the reduced particle density and is dispersed better.
Abstract:
Liquid chemical delivery systems are provided which include a liquid chemical storage canister, a pressurized gas source that feeds a pressurized gas into the storage canister, a vaporizer that may be used to vaporize the liquid chemical supplied from the storage canister, a delivery line that connects the storage canister to the vaporizer, a liquid mass flow controller that controls the flow rate of the liquid chemical through the delivery line, a reaction chamber that is connected to the vaporizer, and a liquid chemical recycling element that collects at least some of the chemical flowing through the system during periods when the liquid chemical delivery system is isolated from the reaction chamber.
Abstract:
(EN) A liquid constant-rate emitting apparatus that in the event of delivering a liquid, such as water, from a liquid accommodating container, even when the amount thereof is small, is capable of constant-rate delivery thereof. There is provided an apparatus comprising liquid accommodating container (2) for water accommodation; water lead-out pipe (11) for water emission from the liquid accommodating container (2); gas accommodating container (1) for compressed air accommodation; and introduction pipe (6) for feeding of the compressed air within the gas accommodating container (1) into the liquid accommodating container (2), so that constant-rate water emission from the water lead-out pipe (11) is attained by application of the compressed air to the liquid within the liquid accommodating container (2).
Abstract:
An apparatus is provided to generate a gas by mixing chemicals with water. Typically, the production of gas, particularly oxygen, by combining water with powders and other dry chemicals has not been widely employed. There have existed a number of preexisting barriers such as undesirable flow rates and yields. However, by utilizing multiple reaction chambers the flow rates and yields can be more precisely tailored for a variety of situations that may call for particular flow rates and yields. Additionally, the use of the dry chemicals would allow for a long self-life allowing the apparatus to be particularly useful in emergency situations.
Abstract:
A method comprises continuously supplying an alcohol to a pressurized reaction system, pressurizing carbon monoxide with a compressor 8 attached to a first feed line 22, for continuously supplying carbon monoxide to the reaction system via a second feed line 23 with a reference flow rate F, and converging excess carbon monoxide in the reaction system in the first feed line via a branched circulation line 24 for allowing to react alcohol with carbon monoxide. The reference flow rate F in the second feed line 23 is a total rate of a reference consumption flow rate Fcs in the reaction and a flow rate F1 in excess rate over a fluctuation consumption flow rate ΔFcv in the reaction system (F=Fcs+F1, F1>ΔFcv). According to the pressure fluctuation of the gaseous phase in the reaction system, the flow rate in the circulation line 24 is controlled to a flow rate Fr=F1−ΔFcv and the feed flow rate in the first feed line 22 is controlled to a flow rate Fsu=Fcs+ΔFcv, for compensating a consumption rate variation in the reaction system with the feed flow rate of carbon monoxide. This ensures discharge inhibition of the gaseous reactant in a liquid phase pressurized reaction system (such as carbonylation reaction system) and effective utilization of the reactant for the reaction.