408results about How to "Reduce extraction" patented technology

A process for separating the components of lignocellulosic biomass for the purpose of producing a pure reactive cellulose is disclosed. The process has two stages. In the first stage, the lignocellulosic biomass is pretreated with steam, with or without an acid catalyst, and then pressed, with or without the presence of an eluent, to remove hemicellulose and other impurities. In the second stage, the pretreated biomass is extracted with a solvent such as ethanol with or without acid catalysts in order to remove lignin and release a purified cellulose stream. The extracted cellulose is then rapidly decompressed to rupture the fibrous structure. The process provides a purified cellulose stream that is relatively easy to hydrolyze with enzymes and ferment to biofuels and other chemicals such as ethanol.

A process for the preparation of soluble proteins of high molecular weight with little or no damage to the structural integrity of the proteins. The process is economically and environmentally acceptable by virtue of the cost of reagents that are used, and the recycling of some of those reagents, and is suitable for the production of soluble proteins on a large scale. The process includes a first stage using oxidative sulfitolysis followed by a second stage using mild conditions to extract the soluble protein. In the case of wool as the protein source the process leads to the production of soluble keratin proteins fractionated into the classes S-sulfonated keratin intermediate filament proteins and S-sulfonated keratin high sulfur proteins.

The present invention provides a mixed rare earth sintered permanent magnet and preparation method thereof. The preparation method of the mixed rare earth sintered permanent magnet prepares the sintered permanent magnet by more than two kinds of alloys. The preparation method of the mixed rare earth sintered permanent magnet of the present invention may produce a sintered magnet with a magnetic energy product such as 2-45 MGOe and optional performance by adjusting proportions of each alloy according to need. A stable main phase of R2Fe14B can be formed by multi-alloy process. Because the permanent magnet is prepared directly by the mixed rare earth, steps of extraction, separation and purification for preparing a single rare earth can be partly saved on one hand, the cost is greatly saved and the environment is protected; the comprehensive utilization of the rare earth resource can be maximized on the other hand.

Atmospheric pressure, intermediate pressure and vacuum laser desorption ionization methods and ion sources are configured to increase ionization efficiency and the efficiency of transmitting ions to a mass to charge analyzer or ion mobility analyzer. An electric field is applied in the region of a sample target to accumulate ions generated from a local ion source on a solid or liquid phase sample prior to applying a laser desorption pulse. The electric field is changed just prior to or during the desorption laser pulse to promote the desorption of charged species and improve the ionization efficiency of desorbed sample species. After a delay, the electric field may be further changed to optimize focusing and transmission of ions into a mass spectrometer or ion mobility analyzer. Charged species may also be added to the region of the laser desorbed sample plume to promote ion-molecule reactions between the added ions and desorbed neutral sample species, increasing desorbed sample ionization efficiency and / or creating desired product ion species. The cycling of electric field changes is repeated in a timed sequence with one or more desorption laser pulse occurring per electric field change cycle. Embodiments of the invention comprise atmospheric pressure, intermediate pressure and vacuum pressure laser desorption ionization source methods and devices for increasing the analytical flexibility and improving the sensitivity of mass spectrometric analysis.

The present invention is directed to a system that includes a semantic reasoning engine that is configured to convert radar track data into a directed graph representation (DGR) of the predetermined surveillance region and iteratively combine the DGRs to create a weighted directed graph (WDG) aligned and superimposed with the digital map data. The WDG includes first WDG elements corresponding to moving objects detected by a radar system. The WDG is compared to historical data to obtain a surveillance detection parameter. An alarm message is generated if the surveillance detection parameter deviates from the historical data by a predetermined amount. An output device is coupled to the semantic reasoning engine and is configured to provide a representation of the digital map data, the WDG and the at least one alarm message.

Provided are a fundus imaging apparatus and a fundus imaging method capable of alleviating loads on an operator and a patient in fundus imaging and of acquiring a high-resolution fundus image. The fundus imaging apparatus having a tracking function is configured to: determine whether or not a template is recorded based on specific information of an eye to be inspected (203); when the template is recorded, read out the template (204); execute template matching on an acquired fundus image (208); and execute tracking at the time of fundus imaging according to a result of the template matching (211).

Atmospheric pressure, intermediate pressure and vacuum laser desorption ionization methods and ion sources are configured to increase ionization efficiency and the efficiency of transmitting ions to a mass to charge analyzer or ion mobility analyzer. An electric field is applied in the region of a sample target to accumulate ions generated from a local ion source on a solid or liquid phase sample prior to applying a laser desorption pulse. The electric field is changed just prior to or during the desorption laser pulse to promote the desorption of charged species and improve the ionization efficiency of desorbed sample species. After a delay, the electric field may be further changed to optimize focusing and transmission of ions into a mass spectrometer or ion mobility analyzer. Charged species may also be added to the region of the laser desorbed sample plume to promote ion-molecule reactions between the added ions and desorbed neutral sample species, increasing desorbed sample ionization efficiency and / or creating desired product ion species. The cycling of electric field changes is repeated in a timed sequence with one or more desorption laser pulse occurring per electric field change cycle. Embodiments of the invention comprise atmospheric pressure, intermediate pressure and vacuum pressure laser desorption ionization source methods and devices for increasing the analytical flexibility and improving the sensitivity of mass spectrometric analysis.

The light extraction efficiency of a Light Emitting Diode (LED) is improved by providing pits etched into a top, emitting, surface of the LED. The presence of the pits reduces the mean distance to a sidewall in active regions, and creates regions of higher transmission at which a semi-transparent contact is not present. The walls of the pits are preferably coated with a passivating layer, such as silicon dioxide, to reduce surface leakage currents and to improve the operational stability of the device at the expense of a reduction in optical extraction efficiency commonly obtained with encapsulants having a higher index of refraction.

The invention discloses a separation treatment method for waste water in a coal tar machining process. The separation treatment method mainly comprises the following steps of: at first, pre-treating the waste water in the coal tar machining process to remove free oil and emulsified oil, and then entering a waste mixing groove; secondly, further removing oil matter by filtering and entering a subside for removing depositions through settling, so as to obtain oil-removed waste water; removing hydrogen sulfide and amine after the oil-removed waste water enters a sewage steam stripping tower, and extracting after acid-removed and amine-removed waste water enters an extraction tower; recovering crude carbolic acid and an extracting agent after an extract phase enters a phenol tower; separating the extracting agent from water after a residual extract phase enters a water tower; and processing after the water enters a follow-up biochemical system. The separation treatment method provided by the invention firstly removes acid and anime of the waste water, provides a good acid-alkali condition for follow-up solvent extraction and dephenolization, and has no need of adding a great amount of the acid and alkali in a treatment process. Meanwhile, byproducts, such as the crude carbolic acid, the anime, the hydrogen sulfide and the like, can be recovered. The water quality of the treated waste water can meet the water inlet requirements of the normal biochemical treatment.

The invention relates to a preparation method of a high-flowing high ethylene content polypropylene randon transparent copolymer resin, characterized in that: a 4th Z-N catalyst is used, the ratio of triethyl aluminum flow to propylene flow is 0.1-0.30, the ratio of external electron donor flow to propylene flow is 0.04-0.2, the addition of ethylene in a single-loop polymerization reactor accounts for 30-50 % of the total amount of ethylene, the addition of ethylene in a dual-loop polymerization reactor accounts for 70-50 % of the total amount of ethylene, hydrogen concentrations of the two loop polymerization reactors are both 0.12-0.15 %, the melt flow rate of polymeric powder is controlled within 11-14 g / 10 min, the ethylene content is controlled within 3.6-4.0 %, a premix consisting of anti-oxidant, neutralizer and nucleating agent and rheological masterbatch are added and then extrusion granulation is carried out, and a final product has the melt flow rate of 16-18 g / 10 min, the ethylene content of 3.6-4.0 %, the hexane extract content of less than 1.6 %, and the haze of less than 10%.

The present invention provides a method for sterilizing a blood purifier, which method is effective to decrease the amounts of extracts from the blood purifier attributed to the deterioration of the selectively permeable separation membranes with time during and after exposure to a radioactive ray or an electron ray, and which method is highly reliable in safety when employed for hemocatharsis therapy. The present invention also provides a blood purifier package.The present invention relates to a method for sterilizing a blood purifier which comprises substantially dried selectively permeable separation membranes as a main component, by way of the exposure of the same blood purifier to a radioactive ray and / or an electron ray, and this method is characterized in that the blood purifier is sealed in a packaging bag, together with an oxygen scavenger and a humectant or together with an oxygen scavenger capable of releasing a moisture, and is then sterilized in such a sealed state by the above exposure.

Individual compounds that provide effective toning (or bluing) to combat yellowing within polyester articles (such as bottles, containers, and the like) are provided. Such a novel toner permits effective neutralization of yellowness while also providing highly desirable low haze and increased brightness due to a sharp absorption peak within the needed range of wavelengths (e.g., from about 565 to 590 nm) and a narrow half-height band width. Furthermore, such an individual compound is preferably liquid in nature and may thus be incorporated within an added ultraviolet absorber solution or shelf-stable dispersion to facilitate addition within target polyesters at various stages of production. The particular UV absorbers desired as additives within target polyesters also tend to exhibit certain yellowing effects that require attention as well. The inventive single bluing agent compound thus also accords effective neutralization of such UV absorber yellowing as well. Methods of production and liquid UV absorber / individual bluing agent formulations are also encompassed within this invention.