The present invention relates to a process for the vacuum purification of chemical compounds and to an apparatus for carrying out this process.

Methods of processing used oil vacuum tower bottoms in a heated chamber. The used oil vacuum tower bottoms are introduced into the chamber as a liquid. The used oil vacuum tower bottoms are introduced in a first section of the heated chamber. The used oil vacuum tower bottoms pass along the length of the chamber through a series of sections that are each heated to different temperatures. The sections may have varying lengths and may be heated to a variety of different temperatures. As the used oil vacuum tower bottoms progress along the length of the chamber, hydrocarbons are removed resulting in an outputted product that is substantially free of hydrocarbons and that has a substantially granular form. Vapor from the process is further captured producing vacuum gas oils.

Methods of processing used oil vacuum tower bottoms in a heated chamber. The used oil vacuum tower bottoms are introduced into the chamber as a liquid. The used oil vacuum tower bottoms are introduced in a first section of the heated chamber. The used oil vacuum tower bottoms pass along the length of the chamber through a series of sections that are each heated to different temperatures. The sections may have varying lengths and may be heated to a variety of different temperatures. As the used oil vacuum tower bottoms progress along the length of the chamber, hydrocarbons are removed resulting in an outputted product that is substantially free of hydrocarbons and that has a substantially granular form. Vapor from the process is further captured producing vacuum gas oils.

A rotary evaporator is provided. The rotary evaporator includes a rotary drive and a piston support (11) for an evaporator piston which can be coupled to the rotary drive. The piston support (11) comprises two transverse carriers (19, 21) for supporting the evaporator piston at two support regions spaced apart from one another and a longitudinal guide (25) having a guide element (27), on which longitudinal guide the two transverse carriers (19, 21) are moveably arranged in order to vary the mutual spacing of the two transverse carriers (19, 21). The guide element (27) is displaceably guided in the longitudinal direction (23) in order to displace the evaporator piston between a coupling position with the rotary drive and a position spaced back from the rotary drive.

A system and process for decontaminating a bio-contaminated wastewater fluid as from a slaughterhouse or similar facility. The system and process recovers purified vapor/steam through a decontamination unit having a plurality of alternating rotating trays and fixed baffles in a processing vessel producing separate purified and contaminant streams. One or more filter/strainer units are disposed in parallel before the decontamination unit, and may be used alternately while the other is cleaned. A rotating shaft connected to the rotating trays may also connected to an electrical generator to provide electricity for circuits and controls in the system.

A system and process for decontaminating a bio-contaminated wastewater fluid as from a slaughterhouse or similar facility. The system and process recovers purified vapor/steam through a decontamination unit having a plurality of alternating rotating trays and fixed baffles in a processing vessel producing separate purified and contaminant streams. One or more filter/strainer units are disposed in parallel before the decontamination unit, and may be used alternately while the other is cleaned. A rotating shaft connected to the rotating trays may also connected to an electrical generator to provide electricity for circuits and controls in the system.

Disclosed are methods, systems, and apparatuses for purifying liquids. One illustrative method includes generating an aerosol from a contaminated liquid. The illustrative method also includes generating a vapor from the aerosol by applying a negative pressure to the aerosol. The illustrative method further includes separating at least one type of contaminant particle from the vapor and converting the vapor into a liquid.

Disclosed are methods, systems, and apparatuses for purifying liquids. One illustrative method includes generating an aerosol from a contaminated liquid. The illustrative method also includes generating a vapor from the aerosol by applying a negative pressure to the aerosol. The illustrative method further includes separating at least one type of contaminant particle from the vapor and converting the vapor into a liquid.

Methods and processes for recycling base oils from spent invert emulsion drilling fluids may include frictionally heating a spent drilling fluid that comprises an invert emulsion and solids, wherein the solids are at about 50% or less by volume of the spent drilling fluid; and simultaneously evaporating oil and water from the invert emulsion at a temperature lower than an atmospheric boiling point for the oil.

Methods and processes for recycling base oils from spent invert emulsion drilling fluids may include frictionally heating a spent drilling fluid that comprises an invert emulsion and solids, wherein the solids are at about 50% or less by volume of the spent drilling fluid; and simultaneously evaporating oil and water from the invert emulsion at a temperature lower than an atmospheric boiling point for the oil.