Navjyot Chemicals & Commodities P. Ltd. Santacruz, Mumbai, Maharashtra

  • maliec anhydride

    maliec anhydride

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    1000 Kilogram (MOQ)

    The oxidation of hydrocarbons to produce maleic anhydride using a catalyst system comprising a vanadium oxide, a molybdenum oxide or mixtures thereof is well known. More recently, such catalyst systems have included materials in addition to the vanadium andor molybdenum oxides, e.g., phosphorous, silica or titanium, and are discussed in u.s. Pat. No. 4,113,745 entitled "catalyst for and method of producing maleic anhydride" to strojny et al, which describes a process for obtaining maleic anhydride wherein a c5 hydrocarbon stream is oxidized with an oxygen-containing gas over a catalyst mixture containing 30 to 60 weight percent vanadium oxide, 5 to 40 weight percent molybdenum oxide and 25 to 60 weight percent titanium oxide on an alpha alumina or alumina silica support having a surface area of less than one square meter per gram. The presence of titanium oxide in selected amounts in the catalyst apparently results in higher maleic anhydride yields and permits slightly lower temperatures during the reaction.

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  • Citric Acid Mono

    Citric Acid Mono

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    1000 Kilogram (MOQ)

    The invention relates to granules which incorporate citric acid monohydrate as an exotherm control agent within a peracid containing core for improved dissolution rates of the peracid from the core in a washing cycle.

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  • deg

    deg

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    1000 Kilogram (MOQ)

    A process for polymerisation of diethylene glycol bis allyl carbonate field of invention this invention relates to a process for polymerisation of diethylene glycol bis allyl carbonate. The polymerised carbonate may be used for lenses having a low refractive index.

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  • Soda Ash

    Soda Ash

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    1000 Kilogram (MOQ)

    United states patent abstract of the disclosure a method for producing soda ash from natural crude trona ore including the following steps: crushing crude trona ore into granules, calcining the crushed crude trona at an elevated temperature to form sodium carbonate and to remove organic materials, dissolving the calcined trona in liquid recycled from the process and make-up water, clarifying and filtering the resulting solution to remove insolubles, adding carbon dioxide to the resulting solution to precipitate sodium sesquicarbonate crystals therefrom, separating the sodium sesquicarbonate crystals from the liquid from which the crysals have precipitated, recycling the liquid to the dissolution step and calcining the separated sesquicarbonate crystals to produce a soda ash product.

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  • Caustic Potash

    Caustic Potash

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    1000 Kilogram (MOQ)

    Technical field [0001] the present invention relates to a purifying method which can give highly pure caustic potash (potassium hydroxide), and the present invention provides a method which can give highly pure caustic potash at low cost and in a simple process by removing, for example, sodium and chlorine, as well as heavy metals, such as iron, chromium and nickel, from the caustic potash to be treated.

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  • BOREX DECAHYDRATE

    BOREX DECAHYDRATE

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    United states patent 3,399,976 process for producing borax decahydrate crystals alan d. Randolph, gainesville, fla., assignor to american potash & chemical corporation, los angeles, calif., a corporation of delaware continuation-impart of application ser. No. 438,840, mar. 11, 1965. This application july 24, 1967, ser. Claims. (cl. 23-301) abstract of the disclosure a process for controlling the mean size and size range of borax decahydrate crystals produced from a magma containing solid phase borax and water saturated with borax. The temperature and solids concentration of the magma are controlled to produce two basic crystal size distributions, one having a mean particle size of less than about 45 mesh and the other having a mean particle size of greater than about 45 mesh. Borax crystals of the smaller particle size are crystallized from the magma when the magma is maintained at a temperature of less than 115 f. And a solids concentration of greater than 0.25 gram of solid borax crystals per cubic centimeter of solids-free mother liquor. Borax crystals of the larger particle size are crystallized from the magma when it is maintained at a temperature higher than 115 f. And a solids concentration of less than 0.25 gram per cubic centimeter.

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  • Acetone

    Acetone

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    1000 Kilogram (MOQ)

    The present invention relates to industrial organic synthesis, specifically to production of phenol and acetone by the cumene method. [0002] a well-known method for the production of phenol and acetone by oxidation of cumene with atmospheric oxygen, followed by the acid-catalytic decomposition of cumene hydroperoxide permits both end products to be produced with high yield (see, for example, kruzhalov b. D., golovanenko b. N., combined production of phenol and acetone, moscow, goskhimizdat, 1964, or kirk-othmer encyclopedia of industrial chemistry). This method is widely used to produce these products and is the principal technique used in world practice. [0003] methods are know for producing phenol and acetone in which, to reduce the yield of phenol tar, cumene oxidation products containing cumene hydroperoxide (chp), cumene, and dimethylphenylcarbinol (dmpc) cleavage in the presence of sulfuric acid to be separated in two stages. In the first stage, at a temperature of 55 to 80°c, most of the chp (97 to 99%) is decomposed and dicumyl peroxide (dcp) is synthesized from dmpc and chp. In the second stage, acetone is added and the process fulfilled at a temperature of 80 to 146°c to the obtained

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  • FORMAL DEHYDE 37%

    FORMAL DEHYDE 37%

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    1000 Kilogram (MOQ)

    This invention rel temperatures not :belowo" c. 1 completely as a'polymen patented ma 21, 1935 I u 2,002,243 7 1 nor aldnnynasolurron pat .wiibifisebtti;hifi garene im bay, staten island, jn.,y., assignor to e. .ldu pont. De nemours 8a company, ind, wilmington, del, 1a corporation of delaware f I dr w n 19*; I l f r aqueous formaldehyde; solutions; a aqueous solutions of substantially pure formal-; dehydecontaining not over30 of thealdehyde are stable at temperatures of c. And above, i. Elnoformaldehyde polymer will precipitate from such solutions at thesetemperatures- hence, such a solution, if kept pure fne'ed not be; stabilized if it is tobe stored and transported at aqueous solutions of formal much in excess of 30% by weight of, formaldee hyde, if allowed to stand at temperatures above. 0 c. Will precipitate formaldehyde polyrner, the

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Navjyot Chemicals & Commodities P. Ltd.

  • KETAN SHETH
  • 7th White rose Chs Ltd. S.V.Road, Kira Nagar, Santacruz (W), -54, Mumbai, Maharashtra
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