44 results about "Silicic" patented technology

A blocking and regulating agent for organic delay silicic gel is prepared by adding at least one of ethyl acetate, acetamide and alcohol as delay activator into master material of sodium silicate solution. The said acetamide can be replaced by formamide or carbomite and alcohol can be replaced by methanol or sometime ammonium chloride can be added.

Silicatein is an enzyme of silicate-forming organisms used for the synthesis of their silicate scaffold. The present invention relates to the use of highly-expressed and highly active recombinant silicatein, silicatein isolated from natural sources after gene induction as well as silicatein-fusion proteins for the synthesis of amorphous silicon dioxide (silicic acids and silicates), siloxanes as well as modification of these compounds and their technical use.

The invention relates to the field of ionizing radiation dose measurement and discloses a PMOS radiation dosimeter which is based on SOI technology and can be recycled. The radiation dosimeter comprises a back-gate electrode, a multicrystalline silicide layer, a semiconductor substrate, a buried oxide layer, a toplevel silicon film, a body contact zone, a source zone, a drain region, a source electrode, a drain electrode, a front gate oxide, a front gate polycrystalline silicon layer and a front gate electrode. In the invention, the dosimeter is manufactured on an SOI substrate and is provided with two electrode probes to measure different dose rates; tuned-grid injections of a front gate and a back gate with different modes are adopted to adjust the measurement range of the probe; a high doping region which has the same shape as the toplevel silicon film is utilized to form the body contact which is short connected with the source zone; source/body, drain/body, the front gate and the back gate are connected with the respective electrode by the multicrystalline silicide; the front gate adopts a plurality of grid bars which are connected in parallel in an interdigital mode to enlarge the sensitive zone of the probe; the invention also provides annealing process control, bias condition, annealing temperature and time control and a circuit measuring method and a structure of a stacking dosimeter capable of adjusting the measuring range.

The invention discloses a shale classification method and application thereof and a shale lithofacies distribution construction system, and the classification method comprises the steps: dividing to-be-classified shale according to the particle size distribution of particles, and carrying out construction to form a first stratum; on the basis of the constructed and formed first layer, obtaining the contents of siliceous minerals, calcareous minerals and clay minerals in the shale in a targeted mode, forming a second stratum through corresponding division, and constructing a unique non-intersection system of shale classification through division of the first stratum and the second stratum, wherein the siliceous minerals contain no detritus quartz. By means of the design, the technical problems that in the prior art, no matter whether shale classification is conducted purely according to particle sizes or based on three-end-member component classification, classification intersection oroverlapping relations may occur, the reliability of classification results is not enough, and the influence on environment analysis is large are solved.

The invention belongs to the technical field of unconventional reservoir lithology recognition, and discloses a shale gas formation lithology recognition method and system, a storage medium and a terminal. Firstly, based on tests such as main microelements, total rock analysis and organic carbon, discrimination criteria of biogenic siliceous shale are established, the granularity, mineral components and siliceous sources are considered, the shale gas formation lithology is divided, and different lithology logging curve responses are counted; and then a density-neutron standardized amplitude range is established, in combination with a natural gamma curve, different lithology discrimination criteria are established, and finally precise recognition of different kinds of lithology of a shale gas formation is achieved through a logging curve. The logging curve has high vertical distinguishability, vertical distribution of the shale of different types can be continuously depicted, the defects that core experimental data are limited, the experimental period is long, and distribution of the lithology of the shale cannot be continuously depicted can be effectively overcome, and meanwhile reference is provided for optimizing shale gas geological desserts. The efficiency and the precision of lithology recognition can be improved.

The present invention relates to novel precipitated silicic acids for use as support materials, manufacture thereof and use thereof.

A cleaning liquid for lithography that exhibits equally excellent cleaning performance for resists of a wide variety of compositions, such as various resists for i-line, KrF and ArF, silicic resist and chemical amplification type positive resist, and that excels in post-treatment dryability, being free from any deterioration of resist performance by cleaning. There is provided a cleaning liquid for lithography, comprising at least one member (A) selected from among lower alkyl esters of acetic acid and propionic acid and at least one member (B) selected from among ketones having 5 to 7 carbon atoms per molecule in a mass ratio of (A):(B) of 4:6 to 7:3.

The invention discloses an ultra-high performance concrete viscosity reducer. The viscosity reducer comprises a siliceous volcanic ash material and a comb-shaped structure PCE polymer grafted on the surface of the siliceous volcanic ash material. The invention also provides a preparation method of the viscosity reducer, a monomer A and the siliceous volcanic ash material carry out a hydrolysis reaction to prepare a precursor, the precursor, a monomer B and a monomer C carry out an addition polymerization reaction to prepare the viscosity reducer, and the viscosity reducer can effectively reduce the viscosity of ultra-high performance concrete after being applied to the ultra-high performance concrete.

The invention discloses a method for producing an attapulgite volcaniclastic rock siliceous refractory aggregate. The technical scheme is characterized in that materials are subjected to uniformly stirring, smashing, soaking, extruding, calcination, smashing and screening, and then the materials are packaged to form a finished product of the attapulgite volcaniclastic rock siliceous refractory aggregate. The attapulgite volcaniclastic rock siliceous refractory aggregate is composed of highly viscous attapulgite clay powders, attapulgite clay tailings, volcaniclastic rock mixtures, quartz rocks, waste silica bricks, opals and bentonite tailings. The attapulgite volcaniclastic rock siliceous refractory aggregate has the advantages that the particle strength is high, the resistance to acid slag is high, the thermal shock stability is good and the refractoriness is high. According to the method for producing the attapulgite volcaniclastic rock siliceous refractory aggregate, a large number of various wastes are utilized in the materials of the attapulgite volcaniclastic rock siliceous refractory aggregate, the resource utilization rate is increased, waste materials are changed into valuable things, the occupied land is reduced, the environment is protected and purified, the energy is saved, the production cost is lowered, the economic benefits are improved, and the attapulgite volcaniclastic rock siliceous refractory aggregate is suitable for acid refractory concrete constructions.

Sandstone formations of oil and gas and geothermal wells may be successfully stimulated with a fluid containing GLDA or salt and HF or a HF-generating component and an organophosphonate component. The organophosphonate acts as a sequestering agent and reduces the amount of metal fluoride precipitates produced.

A silicic coating of 2.4 g/cm³ or higher density, obtained by forming a silicic coating precursor with the use of at least one type of silane compound having a photosensitive functional group and thereafter irradiating the silicic coating precursor with at least one type of light. This silicic coating can be used as a novel barrier film or stopper film for semiconductor device.

The invention discloses a method for detecting the content of trace iron in quartz sand, and belongs to the technical field of quartz sand treatment. The method comprises the following steps: preparing a sample to be detected: weighing siliceous sandstone, putting the siliceous sandstone into a polytetrafluoroethylene bottle, adding concentrated hydrofluoric acid, putting the siliceous sandstone into a microwave oven, taking out after the siliceous sandstone is completely decomposed, and cooling to obtain the sample to be detected; presetting a Fe reagent 2: weighing 0.6 g of the Fe reagent 2,putting the Fe reagent 2 into a 30ml lightproof plastic bottle, adding ethanol and water, and shaking until the Fe reagent 2 is completely dissolved to obtain the preset Fe reagent 2; presetting a Fereagent 1: measuring 10 ml of the Fe reagent 1, and adding 3 drops of 3% ascorbic acid to obtain the preset Fe reagent 1; and developing and measuring: adding 0.2 ml of the preset Fe reagent 2 into the preset Fe reagent 1 obtained in the step S3, uniform shaking, adding the sample to be detected, and measuring through a measuring instrument after uniform shaking. The process is simple, and the measurement of trace iron in the high-purity quartz sand is facilitated.

The invention provides a quantitative calculation method of siliceous contents of different sources in siliceous rock in siliceous rock. The method is simple in process and high in analysis efficiency, can be used for accurately and quantitatively distinguishing the contents of silicon from different sources such as scrap silicon, hydrothermal silicon and biological silicon in a siliceous rock sample, and has important significance for researching the influence of siliceous minerals on shale gas generation.

Techniques for determining an amount of chert in a rock formation include identifying first logging data for a selected zone of a first subterranean formation that includes chert, quartz, and zircon;identifying second logging data for a second subterranean formation that is different than the first subterranean formation, the second subterranean formation including chert, quartz, and zircon; determining a first volumetric ratio of quartz to zircon in the selected zone based on the first logging data; determining a second volumetric ratio of quartz to zircon based on the second logging data; determining a maximum value of the second volumetric ratio; and calculating, based on the first and second volumetric ratios and the maximum value of the second volumetric ratio, a volumetric percentage of chert in the selected zone.

The invention discloses a karst ancient landform restoration method with hydrothermal cause siliceous rock as an isochronous datum plane. The karst ancient landform restoration method comprises the following steps: acquiring rock core, slice and logging information; stratigraphic division and comparison are carried out, and the hydrothermal cause siliceous rock bottom boundary is determined to serve as an isochronous reference plane; finely explaining an isochronous reference surface and a target layer erosion surface; calculating the residual stratum thickness between the isochronous reference surface and the target stratum erosion surface; and obtaining a karst ancient landform map according to the residual stratum thickness. According to the method, the principles that the reference surface is isochronous and close to the erosion surface and the earthquake response is clear and easy to track are fully considered, and the recovery precision of the ancient karst landform is greatly improved.