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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.

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.

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.

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.

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.

Naphthenic acids and their derivatives are widely used in more than 40 sectors of national economy.
Naphthenic acids in a form of lead, manganese, zinc, ferrum, aluminium, chrome salts and in a form of other derivatives, are used in preparation of paint driers, varnishes, paints.
Free naphthenic acids are used as a part of inks and improves their mobility. These acids are also used as thinner for aniline colorants, sleeper impregnation material preserving wood from rotting.
Both free and derivative naphthenic acids have effective fungicidal, insecticidal, bactericidal and preservative parameters which are used in weed and pest control, for impregnation of wood, sail fabric, canvas, rope, tarpaulin, fishing gear and other materials regularly affected by moisture, bacteria, pest, etc. Lead, chrome, cobalt and manganese salts of naphthenic acids are used as antistatic, antideteriorant and antifoam additives for fuel, jet engine fuels and oils. Lubricating and emulsifying materials used for cooling of shearing machines, pasting, lubrication grease for high-pressure plants, demulsifiers brea-king petroleum and oily emulsions are based on naphthenic acids.

Simple and compound ethers of naphthenic acids are used as plasticizers for production of polymeric materials, general rubber goods, polyvinylchloride plastic, hydraulic liquids, etc.
Naphthenic acids are successfully used even at cleaning of rareearth elements, extragens of radioactive materials, catalysts, oxidation and oxonation processes, agricultural growthregulating substances, drying accelerators for glassreinforced polyesters, etc.
In order to meet consumer needs for naphthenic acids, “KARVAN-L” company has developed technology and established commercial installations for output of high-purity acids.

Lubricating properties of low sulfuric diesel fuel with K-Lube additive at device HFRR under method EN ISO 12156-1 (data of JSC “VNII NP” Russia):

At present production of highquality diesel fuels is impossible without attaching of additives of various functionality as depressor, cetane increasing, antismoke, washing, anti-oxidizing, dispersive, corrosion inhibitors, anti-wear and many oth. At preparation of multifunctional packets of additives their compatibility are to be considered, as the various surfaceactive substances are able to influence upon functional properties of each other. At usage of “K-Lube” anti-wear additive in packets with additives of other functionality (cetane increasing, depressor-dispersive and other) no contradiction between them emerges. Just the opposite, the “K-Lube” additive operated better than its foreign analogues /proved by following testing hold by JSC “VNII NP” Russia/:

Taking into consideration results of mentioned above the “K-Lube” additive possesses high protective effectiveness against weariness and we would to mention that usage of additive at enterprises and petroleum refineries enables to save financial assets. Besides high effectiveness of “K-Lube” additive regarding protection from fuel pumps differing from foreign analogues the product has low pour point without adding any dissolvents (no more than 45 degrees below zero), what facilitates transportation, storage and usage it in cold climatic conditions.

Increase of ecological requirements to emissions of car engines and toughening of operation terms of modern combustion engines require usage of various additives to petrols in larger scales.
Restrictions on sulfur content until 0,001 and 0,005% were set forth in Sweden for the 1st time in 1991, and until present they are the strictest one. In 1993 the restriction of sulfur in fuel till 0,05 was applied in USA, in 1994 – in Canada, in 1997 – in Japan. Since 2000 diesel fuel with sulfur content no more than 0,035% is applied. Supposedly, since 2005 sulfur content in fuel wont exceed 0,005%. Along with decrease of harmful emission in exit gases, application of ecologically pure diesel fuels entailed a number of problems: breakdown of fuel pumps, due to decrease of lubricating ability of diesel fuels and .increase of corrosion activity, related with removal of surfaceactive substances able to form protective film. In 2005-2010 stiffer norms on sulfur content are proposed: up to 10 ppm and polycyclic aromatic carbohydrates up to 2%. Starting from 2000, the indicator of lubricating properties of diesel fuels under ISO 12156-1 at HFRR device is included in European standard regarding the diesel fuel EN 590, basing on it the norm is set forth: diameter of wear scar is no more 460 mkm.

Requirements to quality of diesel fuels under EN 590

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.

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.

Description
IC series corrosion inhibitors a 98-100% active amido- or amino- imidazoline derived from naphthenic acids used to formulat corrosion inhibitors for use in drilling, production, transporting and refining of crude oil.

Application

Dissolved acid gases and biological deposits can cause severe corrosion to occur in oilfield water handling system. Corrosion by product such us iron sulfide, iron oxides and biological mass can cause plugging of downstream injection wells. Over a period of time, water system corrosion causes costly leaks and failures

IC series corrosion inhibitors finds application for surfactants or corrosion preventives in all types of oil system. It can be used in concentrated form diluted for application.

Advantages

Concentrated corrosion inhibitor
Effective in multiple applications
Highly cationic amine compound
Surfactant or corrosion preventive for oil systems
Usage

Optimum treatment concentration will vary depending on the specific application.

Stable development of our country directly depends on competitive ability of domestic products, which, in its turn, depends on quality control (i.e. level of testing labs).
Specificity of analytic labs requires special system of their competitiveness recognition. Their accreditation synthesizes general approaches to accreditation of testing labs and peculiarities of analytic operations. In relation with it the actual is application of international standards:
1.management system of lab quality and application of standards
2. Lab-information systems in quality management system
3. Modern analytic equipment and automatization of separate processes in lab activity.
Karvan-L” company lab repeatedly passed accreditation in Azerbaijan State Committee of Attestation, accreditation certificate No. AZ 031.01.11.02.49.07 dated on 14.03.2007. Lab possesses modern equipment for conduction of wide range of analysis in oil chemistry and oil-chemical and organic synthesis, as well as of initial products of synthesis. Particularly, Karvan-L” company lab is fitted by up-to-date machinery for quality control of oily acids, and initial raw material for production of paintwork materials based on pentophtalein, acryl, vinilcetate, polyurethane and etc. film-making clay compositions, driers, initial components of alkyds, acryl, and polyurethane enamels and emulsions, water and oil soluble inhibitors of corrosion, deemulsifiers, additions to oils, oil solvents, aromatic carbohydrates, processed oils and paints, plant oils, sewage of analogical production.