This invention is related to an improvement in the process of filtrate extension of a reaction where at least a set of filtrates of a set of reaction are mixed together to form for a filtrate extension thereby the reaction yields higher order chemical auxiliaries and the reaction is observed that either as convergent or divergent pathway substrate reacts to give qualitative products quantitative, conversions and very less in numbers. Among qualitative conversion reaction filtrate takes pivotal role in synthesizing chemical auxiliaries.

This invention relates to a process for separating components of skim milk, in particular to the extraction of milk proteins and lactose from skim milk powder. The method involves combining skim milk powder with water, raising the temperature of the resulting mixture followed by cooling the mixture to produce a viscous casein fraction and a less viscous lactose fraction, and then separating the two fractions with optional purification.

The present invention is directed to a method of producing active pharmaceutical ingredients (APIs). The method includes subjecting a reaction mixture with an API precursor to solvent extraction to produce a reactant stream with the API precursor. The method includes concentrating the API precursor in the reactant stream using at least one membrane. The method includes carrying out a reaction in a membrane reactor. The method includes separating the API precursor from the reaction stream using a separator. The method includes crystallizing the API precursor using a crystallizer to produce APIs.

A zero-liquid discharge (ZLD) wastewater treatment apparatus is provided. The ZLD wastewater treatment apparatus includes a concentrator configured to concentrate wastewater to produce a primary concentrate, an evaporation crystallizer configured to concentrate and crystallize the primary concentrate to produce a secondary concentrate, a cooling crystallizer configured to cool the secondary concentrate to generate crystals from the secondary concentrate, a dehydrator configured to separate the product produced by the cooling crystallizer into a solid component and a liquid component, and a cooling system configured to cool the secondary concentrate introduced into the cooling crystallizer, wherein the liquid component produced by the dehydrator heat exchanges with a cooling medium in the cooling system and returns to the evaporation crystallizer.

A method of producing pure cannabidiol (CBD) isolate crystals including the steps of extracting the CBD compound from a cannabis plant; winterizing to remove fats, waxes and chlorophyll from the CBD extract; filtering the CBD extract through a series of filter plates; removing carboxylic acid and CO2 from the CBD extract; removing impurities from the CBD extract by distillation; and crystallizing the purified CBD extract to produce pure CBD isolate crystals and chopping the pure CBD isolate crystals to produce crystals of between 200 and 600 microns in size. A further embodiment includes the steps of grinding the crystals to produce micro-particles of between 1 and 5 microns and releasing the micro-particles into an air environment.

The present invention relates to separation and recovery of metals from ground alkaline batteries using anode mud (zinc electrolysis waste) and other manganese and zinc containing materials. The material commonly referred to as alkaline black (AKB) is solubilized into sulfate media and the manganese to zinc ratio is adjusted. The solution containing metals is processed using crystallization and ion exchange methods to produce manganese sulfate and zinc sulfate solutions for several possible applications.

Techniques for growing crystalline calcium carbonate solids such that the crystalline calcium carbonate solids include a volume of 0.0005 mm.sup.3 to 5 mm.sup.3, include a slaker to react quicklime (CaO) and a low carbonate content fluid to yield a slurry of primarily slaked lime (Ca(OH).sub.2); a fluidized-bed reactive crystallizer that encloses a solid bed mass and includes an input for a slurry of primarily slaked lime, an input for an alkaline solution and carbonate, and an output for crystalline calcium carbonate solids that include particles and an alkaline carbonate solution; a dewatering apparatus that includes an input coupled to the crystallizer and an output to discharge a plurality of separate streams that each include a portion of the crystalline calcium carbonate solids and alkaline carbonate solution; and a seed transfer apparatus to deliver seed material into the crystallizer to maintain a consistent mass of seed material.

A method of operating a crystallizing vessel assembly, said vessel assembly having a crystallizing vessel, and a rotor comprising a rotor shaft, said rotor including a plurality of rotor arms, said rotor arms having arms attached to the rotor shaft and scrapers attached at the arms. The crystals are grown on the inside of the vessel and the rotor is rotated to scrape said crystals off. To improve liquid flow inside the crystallizing vessel, a plurality of arms of the rotor arms are hollow arms, each arm of the plurality of arms including an inlet opening that is relatively close to the shaft and an outlet opening that is relatively far from the shaft.

An online measurement device for crystal size and shape in a high-solid-content crystallization process includes a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a solution storage tank. A crystal-containing solution is arranged in the crystallization kettle; an inner wall of the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end. The contraction end is communicated with one end of the solution storage tank and one end of the crystallization kettle. The amplification end is communicated with the dilution device and the peristaltic pump. The peristaltic pump is communicated with the other end of the crystallization kettle. The solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline. A measurement instrument of the measurement device is arranged at the outer side of the solution amplifier.

A method for preparing a purified styrene composition includes providing a crude hydrocarbon composition containing styrene, subjecting the crude hydrocarbon composition to a distillation in a divided-wall column to produce an overhead hydrocarbon stream, a bottom hydrocarbon stream and a side hydrocarbon stream and subjecting the side hydrocarbon stream to at least one crystallization step to obtain a purified styrene composition.