The present disclosure is directed to methods and systems of purifying solvents. The purified solvents can be used for cleaning a semiconductor substrate in a multistep semiconductor manufacturing process.

A refrigerator and filter device are described. In one aspect, the refrigerator includes a main body that defines a storage space. The refrigerator includes a door that is configured to open and close at least a portion of the storage space. The refrigerator further includes a dispenser that is located at the door and is configured to dispense water. The refrigerator further includes a filter that is configured to purify water and supply the purified water to the dispenser. The refrigerator further includes at least two heads that are configured to attach to the filter. The refrigerator further includes a connector that is configured to connect the at least two heads to each other, the connector providing a passage between the at least two heads. The refrigerator further includes a bracket on which the connector and the at least two heads are seated, the bracket being coupled to the connector.

A process for the separation of electrolyte from the carbon in a solid carbon/electrolyte cathode product formed at the cathode during molten carbonate electrolysis. The processes allows for easy separation of the solid carbon product from the electrolyte without any observed detrimental effect on the structure and/or stability of the resulting solid carbon nanomaterial.

A lattice filter for use in an inlet housing of a pump assembly including a lattice filter body extending from a filter inlet end to a filter outlet end. The lattice filter having a lattice structure. The lattice filter also includes one or more passageways within the lattice filter body. Each of the one or more passageways includes a passageway inlet located at the filter inlet end and a passageway outlet located at the filter outlet end. Each of the one or more passageways extend from the passageway inlet to the passageway outlet.

An apparatus which includes an aspirated smoke detector, and a pre-filter coupled to an inflow port of the detector wherein the pre-filter carries a removable filter element. The filter element is configured such that when it is removed, fluid flow through the filter is blocked. When the filter element is present in the pre-filter, fluid flow through the filter is permitted.

A device for filtering oil, including: a tank including an oil inlet and a cover; an at least one removable plate, inside the tank, that can be removed from the tank via the upper opening of the cover. The at least one plate removably receives filtering cartridges. The plate is hollow, forming a collector for the oil filtered by the cartridges of the plate. The plate includes an outlet for filtered oil removably connected to a corresponding outlet of the tank via a connector. The connection includes a first portion rigidly connected to the plate and a second portion rigidly connected to the tank, that are capable of mutually cooperating via a seal in order to provide a sealed connection between the oil outlet of the plate, and the corresponding outlet of the tank, and in order to allow maintenance operations to be performed without intervening in the tank.

A filter press includes a frame, a hydraulic system for compressing and releasing filter plates, the filter plates, a filter chamber, a feed pump, a high-pressure clean water pump, a control system, a rotating plate, a cake removal knife, a squeeze disc, a squeeze disc sleeve, a drive shaft, a brake, a left pull rod, a right pull rod, a pull rod disc, a connector and clutches. The filter cake in the entire filter press can be removed without opening the filter plates in sequence. The filter cake washing is carried out in an enclosed room in a normal direction and a reverse direction, which can not only maintain the dryness and cleanness of the working environment, but also can effectively collect, process treat and recycle the washing water, thus achieving the zero discharge of waste water to meet the environmental requirements at a low cost.

A fluid separation element including: a wound body in which a separation membrane is wound around a central pipe; and an anti-telescoping plate, in which the anti-telescoping plate has an opening part that penetrates through the anti-telescoping plate, the central pipe is inserted into the opening part, a depression is formed in at least one of a surface, in the opening part, of the anti-telescoping plate and an outer surface of a portion, inserted into the opening part, of the central pipe, and a gap between the opening part and the central pipe and the depression are filled with a resin.

A fuel filter assembly includes a filter housing defining a cavity, a center stack having a base component and a top portion. The center stack is positioned within the cavity of the filter housing and attached to the housing, the center stack having an axial aperture in the top portion, the axial aperture having a circumferential surface, and a fuel filter. The fuel filter includes a filter base, an end cap having a top surface and a bottom surface opposite the top surface, an axial extension that extends from the bottom surface, and at least one prong attached to the axial extension, the at least one prong having an axial surface facing away from the top surface that axially locates the fuel filter in the housing against the circumferential surface, a filter element attached to the bottom surface of the end cap, and a pin attached to a filter base.

A replaceable water filter includes a filter assembly having a filter structure with first, second, and third filtering elements sharing a common axis, the first filtering element for removing and/or reducing particulate contaminants in the water, the second filtering element for removing and/or reducing particulate and organic contaminants in the water and the third filtering element for removing and/or reducing at least one of fluoride and arsenic in the water. The filter further includes a housing that contains the filter assembly. The housing includes a first end adapted to removably attach the filter to a filter mount of the refrigerator where the filter communicates with the water supply of the refrigerator. The first filtering element can be fabric, the second filtering element can be a carbon block, and the third filtering element can be activated alumina.