Jun 24 1987018332The grinding aids according to the invention are particularly valuable in the case of cement and especially Portland cement Portland cement is o ne of the hydraulic cements which essentially consist of two calcium silicates and a smaller amount of calcium aluminate.
Jul 23 2020018332Triethanolamine appeared to be the most effective of all the aids studied In the grinding of cement clinker gypsum also acted as a very effective grinding aid The action of.
AMINE FORMATE ACCELERATOR ADDITIVES FOR PORTLAND CEMENT Nov 09 1971 183 United States Patent 3619221 Cement grinding aid and pack set inhibitor 19630618 Adams et al 3053674 Portland cement concrete adjuvant essentially pure amines are especially desirable for use in preparing the additive of the invention due to the relative lowcost.
Grinding aids strength enhancers and quality improvers are based on chemical products Grinding aids work mainly by dispersing ground cement particles to avoid agglomerates enabling an increase in production of up to 25 per cent 1 In vertical roller mills they can additionally be used to reduce vibrations and the amount of water injection and thereby improve cement quality 2.
Oct 14 2011018332CN101898878B Cement grinding aids Google Patents The invention discloses a cement grinding aid comprising calcium formate solution compound glycerol distilled residue solution triethanolamine diols and molass While the product reutilizes the industrial wastes the components of the product synergistically act to optimize the efficacy.
Europe US based company GCP Applied Technologies has received a European patent for increasing the efficiency of cement grinding by using sustainable raw materials The grinding aids and quality improvers allow the use of bio derived glycerol and reduce.
Liquid Cement Griding Aid urea sodium acetate and so on The grinding aids of glycol for cement grinding aids india millgrinding crude glycol cement grinding Get Price EP1728771A2 Biomass derived grinding aids Google Patents.
Sep 10 2009018332Such cement grinding aids are typically selected from the class comprising glycols such as alkylene glycols amines or amino alcohols For example U S Pat No 5 084 103 describes trialkanolamines such as triisopropanolamine TIPA or N N bis2 hydroxyethyl N 2 hydroxypropylamine and tris2 hydroxybutylamine as grinding aids for clinkers.
Description LY CGA Cement Grinding Aids offer all the benefits of traditional grinding aids such as increased grinding efficiency and cement flowability Cement Grinding Aid Patent application Patent application title Cement Grinding Aid Inventors Urs Maeder Frauenfeld CH Dieter Honert Dielheim DE Dieter Honert Dielheim DE Beat.
A cement grinding aid containing a combination of polymer A and known grinding aids is also disclosed Patents Publication number grinding aid for cement Newest Crusher.
A combination of Concept Dual Cement phosphoric acid and Silane produced the lowest mean bond strength 0 9 MPa while EOS Dual Cement hydrofluoric acid and Heliobond produced the highest.
Oct 19 2018018332Europe US based company GCP Applied Technologies has received a European patent for increasing the efficiency of cement grinding by using sustainable raw materials The grinding aids and quality improvers allow the use of bio derived glycerol and reduce the use and the impact of oil derived chemicals.
Cement Grinding Aid Patent duosavar nl A cement grinding aid prepared by using waste antifreeze The cement grinding aid comprises the following components by weight 20 75 parts of pretreated waste antifreeze 5 40 parts of alkanolamine 1 5 parts of an acid solution 3.
Pre hydration is the reaction of cement with moisture that can reduce compressive strength set retardation workability and increase the initial and final set time These problems cost cement producers roughly 300 million dollars a year TAVERO174 VM grinding aids mitigate these issues by requiring less water for stable VRM operation.
US5429675A Grinding aid composition and cement product A grinding aid composition suitable for grinding clinker into hydraulic cement powder an improved grinding process and an improved cement product are disclosed The grinding aid composition is composed of a mixture of at least one alkylene ether glycol and particulate carbon get price.
Cement Grinding Aids penta chem The cement grinding aids is additional material in liquid or solid form admixed in small amount during the cement clinker grinding process which can significantly improve the grinding efficiency and reduce energy consumption without compromising the performance of the cement The cement grinding is an energy intensive process The addition of.
Affected In particular cement production in Spain decreased by 23 in 2008 relative to 2007 1 Due to this huge drop and the forecast for the coming years cement producers feel obliged to take measures to drastically reduce production costs One of the fields most affected by these cost reducing measures is the grinding aids sector which has.
Since the 1930s cement grinding aids have been used in the cement industry The earliest patents of the 1930s tested and used powdered mixtures of mineral oil animal oil and petroleum cracking residues to improve the water resistance of cement products and improve the high early strength and processability of cement.
Low cost cement grinding aid patent A grinding aid composition suitable for grinding clinker into hydraulic cement powder an improved grinding process and an improved cement product are disclosed The grinding aid composition is composed of a mixture of at least one alkylene ether glycol and particulate carbon.
In some embodiments the amount of grinding aid composition in the cement mix is 0 1 weight percent or less One of the advantages of the invention is that it provides increased cement grinding efficiency to a cement mix without the need for other more complex or more expensive grinding aids.
A grinding aid composition for cement clinker grinding comprising a mixture of at least one alkylene glycol represented by the formula HOAO n H wherein A represents a C 2 C 3 alkylene and n is an integer from 1 to 5 and particulate carbon in a weight ratio of alkylene glycol to carbon of 10 01 to 10 5.
Chemical abstract grinding aid for cement patent chemical abstract grinding aid for cement patent cement grinding aid composition patent swiming Patent WO2014003972A1 Cement grinding aid composition low cost cement grinding aid patent 3 Jan 2014 Grinding aids lower the amount of energy and time needed for grinding by increasing the efficiency of the grinding process The.
Patent US4204877 Cement grinding aid and set Additives for use as grinding aids and set retarders in the manufacture of hydraulic cement composed of polyglycerol preferably a polyglycerol selected from the group of di tri and tetraglycerol and mixtures thereof the additive.
MasterCem Grinding aids that improve cement performance by increasing mill throughput and lowering the clinker factor How do MasterCem cement additives improve cement performance BASFs MasterCem product family encompasses an extensive range of grinding aids performance enhancers and specialty products.
CEMENT GRINDING AIDS PERFORMANCE ENHANCERS AND SPECIALTY PRODUCTS Edition 1 0 P 01 Company overview Company overview H olderchem Building Chemicals S A L hereinafter referred to as Holderchem was founded in 1994 as a joint venture with Holcim the worlds leading Portland cement.