Most customers believe glass to be quite a fragile material. More and more customers are nonetheless coming to us, intending to decorate their staircases in such an edgy and virtually zephyrian style. The point is that a glass stairway may look zephyrian and weightless, giving a feeling of suspension over the ground. But in reality glass stairs are quite strong, reliable and durable, just like a regular rock, and are capable of withstanding high loads. In our applications we use high-strength glass that has been subjected at least to thermal treatment or at most glued together into a safety glass (triplex). We can fabricate any or all structural components of stairways and railings from glass: stairways, railings, stairs, hand rails, and bars. Moreover, you can order from Karvan-Glass the self-sustaining glass balcony parapets that will give you maximum observation field from your sunroom or balcony.
A technology that creates a dim surface and renders it grainy and non-transparent (an operation contrary to polishing). The dimming allows drawing a picture on a glass surface. The dimming is widely used in manufacture of glass and ceramic dishware, decoration elements, imitation jewelry, souvenirs, glass furniture and other glass items. Glass dimming methods can be categorized by five groups: dimming by mechanical treatment; chemical dimming; application of dimmed coating by firing; application of dim paint coats; other dimming methods.
Isopropyl alcohol (IUPAC name propan-2-ol; commonly called isopropanol) is a compound with the chemical formula C3H8O. It is a colorless, flammable chemical compound with a strong odor. As an isopropyl group linked to a hydroxyl group, it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms. It is a structural isomer of 1-propanol and ethyl methyl ether. It is used in the manufacture of a wide variety of industrial and household chemicals, and is a common ingredient in chemicals such as antiseptics, disinfectants and detergents.
Isopropyl alcohol (IUPAC name propan-2-ol; commonly called isopropanol) is a compound with the chemical formula C3H8O. It is a colorless, flammable chemical compound with a strong odor. As an isopropyl group linked to a hydroxyl group, it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms. It is a structural isomer of 1-propanol and ethyl methyl ether. It is used in the manufacture of a wide variety of industrial and household chemicals, and is a common ingredient in chemicals such as antiseptics, disinfectants and detergents.
Karvan L offer you aminoacids from organic acids. We offer you a unique organic plant food Power that has no analogues in the world. The quality is high and the prices are 2 times lower than the world market. Power- our product contains natural amino acids and amino acid esters, retains plant natural taste and aroma. Power is 100% organic. We don't use chemicals or sintetic substances. It does not contain chemical additives.
Naphtenic acids acids exudes from alkaline wastes after leaching distillates of diesel oil and kerosene naphtenic oils are effective stimulators plants growth. Oil growth substance is represent as water solution sodium salt of naphtenic acids 40%. (OGS) steep seeds before sowing use mixture with chemical fertilizers during vegetation for plant spraying in blooming period. Using the OGS grout concentration in water from 0, 001 to 0, 4 sharply to raise cotton productivity, winter wheat and other products. The OGS is supplied: 1. OGS increased growth (evolvement) of plants especially in initial stage and vegetation stage. Influence effect is depend on plant nature, soil nature, conditions and etc. 20-25% at a speed almost always rise, on the whole this indices are contained in interval from 20% ( it is was not lawyer) and it can exceed 100% over. 2. OGS increased crops productivity. In converting to productiveness from 1m2 in total due to increase speed and growth of yields quantity effect is very seemly. 40% 3. OGS sharply resistibility diseases and survival rate extreme conditions
The all-glass enclosing structures of elevator shafts provide the main advantage of perceptible fragility and exquisiteness combined with guaranteed reliability and long life. The panoramic glazing of elevator shafts with architectural shutterproof glass (which is more commonly referred to as a panoramic elevator) has an advantage to conventional enclosed shafts. The main type of elevator shaft glazing Karvan-Glass apply is point glazing: glass is attached to the bearing structure made of stainless or construction steel using point fittings specially designed to compensate for dynamic loads that occur during operation of an elevator. In doing so, the maximum transparency is achieved. The versatility of elevator shaft designs using architectural safety steel is virtually unmatched among other materials. It ranges from full transparency which gives a panoramic view to passengers in an elevator through to modern photoprints on glass capable of embodying any designer’s concept. For instance, hidden glass fittings enable to create a solid structure that shares concept with the decorative glazing of walls.
Application Solvent Applications, Chemical Intermediates, Pharmaceuticals, Acetone Feature IPA is produced by the direct propylene hydration process. IPA meets the diverse needs from solvent industry. Our division has been a stable supplier of raw materials for related industries. IPA is used for cleaning semiconductor wafer and LCDs. This highly value-added product has been enjoying rapid increase in demand in accordance with the development of such areas as information, communication and multimedia. High Purity We have high performance purification process to manufacture high purity IPA products. Our IPA maintains superior quality characteristics through products of high purity.
Application: used in production of lacquer materials designed for improvement of colouring agent wet-out and dispersion, increase of sedimentation stability of pigment suspension for 20-30%, reduction of light organic pigment flotation, dispersion time reduction for 30-50%. Due to surface activity and complete compatibility with different organic solvents, copper naphthenate is adsorbed on pigments, decreases discharge of main desiccants for 25-30% at the same time possesses activity synergism with Co and Mn, increases enamel coating firmness and reduces drying time to level 3. Trade dress: calcium naphthenate as a solution in white spirit. Appearance: unclouded homogenous light yellow liquid.
Karvan-Glass specialists carry out the vitrification of balconies and sunrooms using sliding aluminum and swing vinyl systems. If you plan a balcony vitrification, we suggest to select the profile (aluminum or vinyl), which requires comparing advantages of applied profile systems. Sliding aluminum systems represent the following advantages: practicability and usability; saving internal space; low weight; long life; affordable price. Swing vinyl systems represent the following advantages: high noise insulation; good heat insulation; long life; swing flaps ensure easy maintenance.
Crude oil flowing from wells contain fair amount (often 20-30%, sometimes up to 60-65%) of water with dissolved salts from basis point up to 1-2%. This significantly increases viscosity of crude oil, generates stable emulsion and makes the oil inadequate for refining and transportation. Water produced together with oil is usually in very unusual state, i.e. it is spread in oil in the form of droplets (emulsified form). Less the size of droplets, more stable the emulsion. One of the main reasons of emulsion stability is also the presence of resin, pyrobitumen, paraffin, and other oil admixtures like glycerine, microcrystal of paraffin, ceresin in crude oil. These substances generate quite firm and thick (protective films) on the surface of water and solid particles thus preventing merging of water drops and solid particles and their spontaneous segregation from oil. At present physical, thermal, physico-chemical, electrical and combined methods of oil emulsion breaking are used for oil dehydration and oil desalting. One of the widelyused and most effective methods is physicochemical combined method using chemical reagents demulsifiers. Demulsifiers are substances with high surface activity. They are concentrated in interfacial areas of oil emulsion, break protective films covering solid particles, water droplets and neutralise their electric charges. After this, small droplets will merge into bigger drops under the influence of mutual attraction, loosen and segregated from oil.Oil demulsifying is carried out in oil field and oil refinery plants. At present “KARVAN-L” company tries to provide integrated work cycle: – development production supply and implementation of produced demulsifiers together with consumer. Demulsifier Karvan-200 is designed for oil dehydration and desalting in gathering system and oil treatment plant. Reagent can also inhibit corrosion processes.Demulsifier Karvan-201 is designed for separation of both light and heavy crude emulsion. This reagent is the composition of macroglycols and nitrogen-bearing surfactants in organic solvent environment Demulsifier discharge per 1 ton crude is 10-60gr. Dosage depends on emulsion stability, treatment temperature, water separation period and desired depth of oil processing. Optimum dosage and demulsifier application process ensuring necessary results can only be defined as per test results carried out in practical use sites.
Translucent structures represent a convenient, functional and stylish decoration of various types of buildings and facilities. They look pretty well with business centers, shopping malls, and administrative buildings. They boast a light and elegant appearance but still maintain a serious yet fine exterior. The translucent structures enable to save on artificial lighting as they let in more sunlight. These structures are built using highest quality glass panes, which renders them, even greater advantages, namely noise and heat insulation as well as power saving ability. Translucent structures are about filling both horizontal and vertical planes of a building or facility with glass panes above an aluminum façade. Glass facades from our company represent minimum costs with always-high quality and versatility of designer solutions, which is a decisive factor for most satisfied customers who have already chosen Karvan-Glass.
A winter garden represents a special architectural element with glass walls and roof and is decorated with various decorative plants Year over year there are more country mansions and cottages with special attention to winter gardens. They can give certain flair to the indoor scene and become a lively garden-like place for cozy pastiming and enjoying the beauty of the nature. Winter gardens of different price can be erected as an individual building or a part of a house, housing different plants of different sizes. It is quite problematic and not worth to build a garden on one’s own, so you can easily use our company’s services and order one. Main reasons why Karvan-Glass: 1. high material quality guarantee; 2. excellent design; 3. short order delivery time.
Glass doors are the integral part of architecture today. This is a fantastic choice for any kind of premises, from business centers through to apartments. One may think glass is not a strong material, but it is a misconception. Tempered glass manufacturers have long been offering the product that easily provides a good heat and noise insulation and boasts an outstanding strength and long life. Broad product range The broadest selection of glass doors, fittings and door cases enables to pick a door for any indoor scene. Quality High quality glass from world’s top manufacturers. Simplicity Leaf made of environmentally friendly and easily maintainable material. Safety Safety in use – tempered glass is very strong and does not form sharp splinters if broken. Long life Always the same appearance throughout the life.
Petroleum refining is characterized by the largest amount of systems exposed to corrosion compared to any other sector of the oil industry. Corrosion problems occur everywhere, from the points of raw materials delivery up to removal and transportation of the refined products. Corrosion control measures shall be taken at crude oil distillation plants and units for alkali treatment of oil, gas plants, reformer and cracking units, straight run deisobutanizers, units for adsorption of hydrogen sulphide from aqueous solutions, furfural treatment units etc. Liquid composition may vary depending on a particular stage of the oil refining cycle – from sulphurous, acid oil-water mixtures fed to refineries to final products (e.g., gasoline) with negligible water content. It is hardly possible to use any “universal” corrosion inhibitor due to the variety of process mechanisms that may cause intense corrosion of equipment used in the oil sector. The need to ensure property package determining processability and compatibility of the inhibitor with corrosion medium components necessitates development of an inhibitor that would be functional in different corrosive conditions. Oilfield water containing large amounts of chloride ions, oxygen, carbon dioxide and hydrogen causes and promotes further development of local electrochemical processes, which represent the most dangerous type of corrosion and failure of metal. Oilfield practice shows that the most dangerous local corrosion damages also occur in the presence of microorganisms. In order to protect oil equipment against chemical and bacterial corrosion, Karvan-L company designed efficient and cost-effective water-soluble and oil-soluble corrosion inhibitors. Corrosion inhibitors are nitrogen-containing surfactants, produced based on natural acids with addition of film-forming admixtures and biocides.
It often happens that people confuse glass panes and vinyl windows. These are not synonyms, however. A glass pane is a part and nearly crucial part of a window structure. This is a translucent structure consisting of two or more glasses that are fixed (glued) together along the outline using spacing bars and sealant compounds. Main functions of a glass pane: natural lighting, thermal and noise insulation. Glass panes are categorized by manufacturing process: standard, where molecular sieve is poured into a metal or vinyl spacer, after which the glued glass sheets are plastered along the edge with silicon, isomelt, polysulfide or polyurethane sealant compound, thus providing the secondary sealing. Warm edge technology-based manufacture This is a new and promising technology. It differs from the standard technology in that instead of several production steps as in the case with glass pane it involves only two (flexible spacer application, pressing), thus greatly saving time and cost. Such glass pane is warmer than that manufactured using a standard technology. As defined in GOST 24866, glass pane are categorized as follows: by number of chambers. A space between each two glass sheets is called a chamber. Glass panes can be single-chamber (two glass sheets), double-chamber (three glass sheets) and so on. by width The glass pane width is the full width considering its glass and air part. Glass panes can be 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 42, 44 etc. mm By glass type: regular energy-efficient glass with low-emission coating (hard or soft, also known as - or I-type) noise-resistant triplex sun-screening tinted or film-coated glass shutterproof glass with a high protection class.
Glass partitions represent a very good designer solution. They visually extend the room space and improve movement of light. Fully transparent all-glass partitions and doors can be used in office, production and trading premises as well as for facade shopwindow glazing. Furthermore, translucent structures can represent different models: various degrees of mattness and tint, decorated with fretwork and logos. Stained-glass windows are most popular of them. Glass partitions are fabricated of up to 20 mm thick shutterproof tempered glass, which improves the light flux up to 85%. Glass Partitions Provide The Following Advantages The all-glass partitions represent an advantage in that they do not visually cumber the rooms or obstruct the light flux. The all-glass office partitions and doors are secured to walls and ceiling with special fasteners; this is an advantage compared to frame-type translucent partitions as their installation takes less time and is easier, plus there is no need to use non-transparent fastening elements. A glass partition today is not only a cost effective and convenient but also a lovely item. Such partition will fit just nice into the interior. Office glass partitions installed in premises allow deploying a big number of employees due to the better noise suppression. This helps improve the psychological environment and ensure it benefits the productive teamwork. The thick shutterproof glass keeps warmth inside and creates a cozy atmosphere to each employee’s request. The glass partitions and doors are durable, heat-resistant, require no maintenance and are virtually safe.
To this day, petroleum acids are still being studied by a number of researchers. Interest in the above class of organic compounds is not only attributed to practical perspective, but also to general humanitarian purposes. According to S. Nametkin, "... composition and structure of petroleum acids are closely related not only to the genesis of oil, but to the origin of life on Earth as well". Depending on their origin, oils may contain different amounts of naphthenic acids, extremely insignificant in all cases. Naphthenic acids are extracted from oils using alkali alcoholic solutions. Structure of naphthenic acids in any oil is the same and depends on the nature of oil. Among the oil produced worldwide, and particularly in the CIS region, Azerbaijan's oil features the highest content of petroleum acids. Oils of Bibi-Heybat, Romani, Binagadi, Balakhani, Sabunchi and other fields are rich in petroleum acids, which content in some crude oil grades reaches 1.5 – 2%. Due to the fact that acids extracted from naphthene-base crude of Baku oil fields have the same composition and physical-chemical properties as synthetic naphthenic acids, they are often referred to as natural naphthenic acids.
It is not a secret that the appearance of a house is a sort of a business card for its owner. Embarking on a quest for an architectural solution for the façade of our house or office, we intend to benefit from the uniformity of style, beauty, practicability, and safety A sun breaker or shed is one of key elements of a building decoration which protects the porch or balcony as well as people who like spending time there from the snow, rain and other elements. Insignificant at first glance, but quite important in reality – the element like shed should be not only exquisite and stylish but also strong and safe. And the glass sun breaker from Karvan-Glass is something that satisfies all these requirements. For glass today is a state-of-the-art, stylish and strong material widely used in construction and design. If you want to decorate the building exterior in an unusual style then glass sun breakers are your choice – buy them from our company and satisfy your boldest architectural needs, benefiting from all advantages the state-of-the-art construction technology can provide.
o this day, petroleum acids are still being studied by a number of researchers. Interest in the above class of organic compounds is not only attributed to practical perspective, but also to general humanitarian purposes. According to S. Nametkin, "... composition and structure of petroleum acids are closely related not only to the genesis of oil, but to the origin of life on Earth as well". Depending on their origin, oils may contain different amounts of naphthenic acids, extremely insignificant in all cases. Naphthenic acids are extracted from oils using alkali alcoholic solutions. Structure of naphthenic acids in any oil is the same and depends on the nature of oil. Among the oil produced worldwide, and particularly in the CIS region, Azerbaijan's oil features the highest content of petroleum acids. Oils of Bibi-Heybat, Romani, Binagadi, Balakhani, Sabunchi and other fields are rich in petroleum acids, which content in some crude oil grades reaches 1.5 – 2%. Due to the fact that acids extracted from naphthene-base crude of Baku oil fields have the same composition and physical-chemical properties as synthetic naphthenic acids, they are often referred to as natural naphthenic acids.