Abstract: A process and an apparatus are disclosed for separating particulate matter from a contaminated gaseous medium containing the particulate matter, including the steps of passing the contaminated gaseous medium through a swirl-inducing zone to form a swirling-contaminated gaseous medium; introducing the swirling-contaminated gaseous medium into a cyclonic separation zone via an introduction zone to separate at least a portion of the particulate matter from the swirling-contaminated gaseous medium and to form a layer of particulate matter on the inner surface of a wall defining the periphery of the separation zone; deflecting the layer of particulate matter below the introduction zone; removing the gaseous product from the separation zone through an exhaust flow zone disposed radially inward from the swirl-inducing zone; and removing the particulate matter from a lower region of the separation zone.

Abstract: A water dispersible heat activatable adhesive includes a polyethyloxazoline, a compatible water dispersible adhesive and an anti-blocking agent to prevent premature adhesion. This adhesive is particularly beneficial as a coating for flushable tampon tubes.

Abstract: The invention provides the combination of a dispenser and a series of incontinent or catamenial pads that are connected by easily severably areas. These pads may be rolled without harmful effects to the pad. The rolled pads that are connected by severably means are suitable for combination with a dispensing container that allows them to be withdrawn a single pad at a time.In a particularly preferred embodiment an incontinent pad having elasticized edges and double baffle is connected in series by severably portions at the ends. The pad is placed into a generally cubical box and withdrawn either from the center of the roll at the top of the box or from the end of the roll at the side of the box. The container is provided with a removable section at either the top or side for the withdrawal of pads.

Abstract: Hygienic pads such as sanitary napkins are provided with extensions, which can be attached to a central pad unit to increase the dimension in a direction determined by the user.

Abstract: A cell for the electrolytic deposition of metal at low temperatures and low electrical consumption in which an anode of a metal oxide and reducing agent immersed in an electrolytic molten halide salt bath comprises lithium chloride and sodium fluoride, the bath formulated to have high electrical conductivity and very low solubility for the metal oxide, as well as the recovered metal. The electrolytic molten halide salt bath is substantially absent of the metal to be recovered.

Abstract: The invention is generally accomplished by providing a disposable garment comprising a liquid impervious backing sheet, a liquid pervious body-side liner sheet, and an integral absorbent pad disposed between the liner and cover sheets. The absorbent pad is provided with a high absorbency area extending from the crotch region toward the center of the front waist of the garment. It is preferred that about 65 percent of the total absorbent be in the front half of the diaper with the about 40 percent of the total in the high absorbency area.

Abstract: A refastenable tape member (20) for disposable garments comprising a stationary release element (50) secured to the garment, a secondary tape element (30) including an adhesive layer (33) with a portion (34) adhered to the garment and another portion (35) free thereof, and a primary tape element (40) having a lower surface (44) with a major portion (A) releasably joined to the secondary tape element and a minor portion (B) adhesively bonded to the secondary tape element. The primary tape element (40) has an adhesive layer (43) which is releasably joined to the stationary release element (50) when in a storage position. To effect the first closure of the garment, the primary tape element (40) is separated from the release element (50); the adhesive bond between the secondary and primary tape elements (30, 40) along minor portion (B) assures dependable separation of the primary tape element (40) from the release element (50) for this purpose.

Abstract: This invention relates to a process for hydroconverting a hydrocarbon chargestock having the steps of: heating the chargestock to produce a minor amount of coke; contacting the coke within the chargestock with a minor effective amount of an oil-soluble metal compound, the metal being selected from the group consisting of Groups IV-B, V-B, VI-B, VII-B, and VIII of the Periodic Table of Elements, and mixtures thereof; contacting the metal compound and the coke within the chargestock with a hydrogen-containing gas under conditions to produce a solid catalyst within the chargestock capable of promoting hydroconversion of at least a portion of the chargestock; contacting the chargestock containing the catalyst with hydrogen under hydroconversion conditions; and recovering a hydroconverted substantially-hydrocarbon product.

Abstract: The invention relates to a pad that has as the outer impervious layer a polymer sheet integrally bonded to a fabric material such that the fabric material is on the exterior of the polymer sheet. The fabric is exposed on the body side of the pad when the edges of the pad are wrapped with the impervious liner to form baffles. The absorbent material forming the inner portion of the pad is integrally connected to a pervious body-side liner material. The connection of pervious liner to absorbent is such that when the pad is manipulated the pervious liner material stays in contact with the absorbent material and aids in transfer of liquid through the pervious liner into the absorbent. The fabric forming part of the impervious layer is preferably hydrophobic.

Abstract: A method of making agglomerated cellulosic particles, particularly useful as a cat litter, comprises agglomerating a moist blend of fibers, aggregates of fibers, and/or fiber-sized pieces of a fibrous cellulosic material in a substantially horizontal rotating drum to form agglomerated particles; compacting surfaces of the particles; and drying the particles.

Abstract: An improved method for converting methane to higher hydrocarbon products by contacting a gas comprising methane with a contact agent at a selected temperature, the agent comprising a reducible metal oxide, a support of at least two oxides, and an alkali metal.

Abstract: An anode of a mixture of reducing agent and metal oxide particulates is inserted into an electrolytic solvent bath under compression. In forming the particulate anode, the materials of construction are selected such that there is a minimum number of particle contacts. In such a selection, the contact surface area is important and is determined primarily by particle size. The compression of the anode is maintained to deform the particles during electrolysis.

Abstract: An improved process for the production of a contact agent comprising digesting a reducible oxide of at least one metal, the oxide of which forms a reduced metal oxide, and a support in the presence of a silicon component, drying the precipitate of the reducible oxide and calcining the precipitate to form the contact agent.

Abstract: An improved method for converting methane to higher hydrocarbon products by contacting a gas comprising methane with a contact agent at a selected temperature, the agent comprising a reducibile metal oxide, a support of at least two oxides, and an alkali metal.

Abstract: A system is disclosed for controlling the environment and temperature in the initial thermal reaction zone of an at least two-zone Claus thermal unit by means of control signals. Both a feed-back control and a feed-forward control are disclosed.

Abstract: A system for measuring crush properties of a catalyst bed includes a catalyst bed container which includes at least one deformable wall around and adjacent to a catalyst bed. The catalyst bed container is enclosed within a pressure vessel. The pressure vessel is coupled to a pressure gauge and to a pump which acts to introduce measured quantities of an incompressible fluid such as water into the pressure vessel around the catalyst container. A pressure gauge is provided for measuring the pressure of the fluid within the pressure vessel. Two conduits extend from spaced positions within the catalyst vessel to the exterior of the pressure vessel, in order to create an air flow across a portion of the catalyst bed. Two spaced pressure taps also extend from locations within the catalyst vessel outside of the pressure vessel, and are coupled to a pressure sensor such as a manometer, for measuring the differential pressure between these two pressure taps.

Abstract: An apparatus for separating solid particles from vapor is disclosed. The apparatus includes a novel inlet system, a novel particle outlet system and a chamber having novel dimensional relationships which result in an apparatus that separates solid particles from vapor with less attrition, or "break-up" of particulate matter, while maintaining a high separation efficiency at high loading conditions, e.g., the apparatus maintains a tangential wall velocity of less than about 50 feet per second and separates, from a mixture of solid particles and vapor, more than about 95% of the solid particles that are larger than about 20 microns in diameter while processing more than about 200 cubic feet of the mixture per second.

Abstract: A hydrocarbon hydroconversion process is disclosed which comprises:combining the chargestock and a minor, effective amount of at least one molybdenum compound prepared by a method which comprises interacting molybdenum metal with at least one peroxy compound in the presence of at least one saturated alcohol having from one to four carbon atoms per molecule to solubilize at least a portion of the molybdenum metal;contacting the molybdenum compound within the chargestock in the presence of a gas selected from the group consisting of a hydrogen-containing gas, a hydrogen sulfide-containing gas, and a gas comprising hydrogen and hydrogen sulfide, at conditions to produce a solid catalyst within the chargestock capable of promoting the hydroconversion of at least a portion of the chargestock;contacting the chargestock containing the catalyst with hydrogen under hydroconversion conditions to hydroconvert at least a portion of the chargestock; andrecovering a hydroconverted hydrocarbon product.

Abstract: A process for reforming naphthene and paraffin-containing hydrocarbon feeds to increase their aromatic content is disclosed which involves the use of a series of reaction zones containing a supported platinum-group metal catalyst and a supported rhenium catalyst, wherein the distribution of catalytically effective platinum-group metal and rhenium among the series of reaction zones is skewed. The ratio of the percent by weight of the supported platinum-group metal in the catalyst in at least one of the earlier reaction zones of the series of reaction zones to that in the catalyst in at least one of the later reaction zones is in the range of about 1.5 to 10, and preferably in the range of about 2 to about 6. The percent by weight of supported rhenium based on the catalyst in the first zone is preferably less than about 10 percent by weight.