The present invention relates to the process of purification of boric acid by ion exchange method. Boric acid is dissolved in hot demineralized water. The hot solution is pressure-filtered. The hot saturated solution, which is purified from water-insoluble, is passed through a column containing strong cation exchange resin, followed by a column containing weak anion exchange resin at the same temperature and cooled afterwards. The crystals settling by cooling are separated from the mother liquor, the amount of aqueous solution within them is reduced and then dried. The waste solution formed during crystallization and filtrate formed after separation of crystals from aqueous solution are mixed and used in boric acid dissolving process. The developed method enables the reduction of sodium, sulfate, chloride and iron impurities of technical grade boric acid to less than 1 ppm and is more economic and environmental friendly than current methods.

The present invention relates to development of a novel cannabinoid-based gold nanoparticle drug delivery system for intravenous or localized administration of cannabinoid drugs. More specifically, the gold nanoparticles with a specific size range are conjugated with various cannabinoid molecules (CBD and THC molecules) to synthesize a stable and biocompatible nano-delivery system suitable for both localized and intravenous administration.

Methods and systems for treating an oil/water vapor stream containing solids fines. Routing a feed composition of oil/water vapors containing fine solids to a condensing unit, combining the feed composition with a cooled OWS emulsion, forming a warmed OWS emulsion. The warmed OWS emulsion is routed to a surge vessel containing a volume of surge OWS emulsion, where after a first portion of the surge OWS emulsion is routed to a heat exchanger, forming the cooled OWS emulsion, and a second portion of the surge OWS emulsion is routed to an OWS separation unit. The OWS separation unit may be one or more disc stack centrifuges, in some cases preceded by one or more decanting centrifuges. In certain embodiments the oil/water vapor stream containing solids fines is generated from a thermal desorption unit, such as a turbulent vacuum thermal desorption unit. Systems may be integrated with thermal desorption units and drilling rigs.

The present invention provides a method for capturing specific cells (e.g. many types of cancer cells, including cancer cells not expressing EpCAM) and a method for analysis of specific cells involving the method. Included is a method for capturing specific cells present in blood or biological fluid, the method including: subjecting sampled blood or biological fluid to enrichment; and capturing specific cells therefrom onto a hydrophilic polymer layer in a flow field.

The patent discloses a method for efficiently collecting and purifying Orobanche cumana (O. cumana) germination stimulants using aeroponic system and solid-phase extraction (SPE), including the following steps: (1) sunflower seeds germination, then planting sunflower seedlings in aeroponic device, and cultivating the sunflower seedlings in the aeroponic system; at the aeroponic stage, phosphorus-containing aeroponic nutrient solution is first used to cultivate the sunflower seedlings for 20 to 25 days, and phosphorus-free aeroponic nutrient solution is then used instead to subject the sunflower seedlings to starvation cultivation for 5 to 7 days; and (2) passing all nutrient solutions in the aeroponic device through an SPE cartridge for SPE to extract O. cumana germination stimulants. The obtained O. cumana germination stimulants are diversified, and have high concentration and purity.

Methods to extract chlorella protein from algae powder are described. A first extraction method is an alkaline solution extraction method. A second extraction method is an enzyme extraction method. A third method is a low-temperature deep eutectic solvents (DES) extraction method. According to each of these methods, a protein recovery rate is calculated from a protein extract solution of chlorella protein.

The present disclosure pertains to methods for separating proteins from surfactants that comprise (a) adding an amount of denaturing buffer to a mixture comprising a protein and a surfactant thereby forming a denatured solution wherein the protein is denatured and (b) filtering the denatured solution with a molecular weight cutoff filter, thereby separating the protein from the surfactant and the denaturing buffer. The present disclosure also pertains to kits for forming such methods.

A struvite and a method for extracting the struvite from seawater, concentrated salt water or brine. NH.sub.4HCO.sub.3 and H.sub.3PO.sub.4 are added in the seawater, concentrated salt water or brine, and NH.sub.4HCO.sub.3, H.sub.3PO.sub.4 and the seawater, concentrated salt water or brine are stirred and well mixed to react. Then electromagnetic ionic liquid are dripped, with a dripping time controlled to be 30 to 50 min and pH value of the reaction solution to be within a range of 7.5 to 8.5, to generate white precipitate. Finally, the white precipitate is separated from the liquid, spin dried and packaged to obtain the struvite. The struvite has higher purity and fertilizer efficiency than natural struvite, and also contains potassium, calcium, sulfur and chlorine required for crop growth and dozens of types of trace elements such as molybdenum, zinc, manganese, iron, copper and selenium, which is more suitable for the crop growth.

A method for extracting herbal medicine includes: step one, spray extraction; step two, pressure filtration and concentration; step three, spray and countercurrent precipitation; and step four, concentrating reduced pressure and drying.

A method for extracting animal-derived pulmonary surfactants, including forming an extract of an animal lung, forming a precipitate by mixing the extract of the animal lung with a cationic flocculant solution containing poly(diallyldimethyl ammonium chloride) (pDADMAC), separating an organic phase containing pulmonary surfactants from the precipitate, recovering the pulmonary surfactants from the organic phase.