GCP Applied Technologies receives European patent on ... - ZKG
The patent addresses methods for increasing the efficiency of cement and mineral grinding by using sustainable raw materials. The patent relates to methods for improving the efficiency of grinding materials such as clinker and limestone, using glycerol derived from biofuel production, in combination with various grinding additives.
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GYPSUM SET ACCELERATOR AND METHOD OF Free Patents . Oct 25 2018 · 1. A gypsum set accelerator comprising dry loose finely ground particles comprising a mixture of dry solid particles of ground dry calcium sulfate dihydrate and a grinding aid comprising dry solid particles of beta-naphthalene sulfonate formaldehyde condensate phosphate salt and/or pregelatinized …
Patents Assigned to National Gypsum Company - Justia
Justia - Patents - Patents and Patent Application Resources. Abstract: A method of mounting a gypsum wallboard in which the wallboard has a tear-resistant material partially adhered to the back face, with small slots in the material located at unadhered areas, through which small suspension clips are inserted. The clips include a hanger leg for hanging the clip …
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Capping Gypsum Cement Patent. Capping Gypsum Cement Patent Around 30 mins, the strength of the gypsum can reach 5,0009,000 psi 350630 kgfcm2. This type of gypsum is mostly used in the capping material for concrete compression test according to ASTM C617 standard, so our high strength Capping Gypsum the offer the convenient and excellent testing material for …
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Campbell Grinder Company. Here at Campbell Grinder Company innovation and multi-functional capability is our specialty. Not only do these machines all grind but many can turn, mill, drill, probe and depending on the model they can creep feed grind, conventional grind, and also superabrasive grind.
GYPSUM SET ACCELERATOR AND METHOD OF PREPARING SAME ...
U.S. Pat. No. 4,019,920 describes a gypsum set accelerator produced by compression milling a mixture of ground gypsum rock and starch, and the addition thereof to an aqueous slurry of settable calcined gypsum such as in the forming of paper-covered gypsum wallboard. Corn starch is preferably used in this reference.
Apparatus and method for recycling gypsum wallboard ...
United States Patent 6164572 ... The apparatus has a crushing means to crush the gypsum core of the wallboard and shred the paper covering. A grinding means further pulverizes the gypsum into a powder and tears the shredded paper into pieces that are approximately one and one-half inch in diameter.
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Patent registration Method for controlling of grinding process B02C25Control arrangements specially adapted for crushing or disintegrating FIELD automatic grinding of raw materials used in construction material industry mining and other branches of industry of the fineness of grinding the ratio of gypsum/clinker and the
Patents Assigned to National Gypsum Company - Justia
Patent number: 5879446. Abstract: A method of preparation of gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and calcium aluminum lignosulfonate and/or aluminum lignosulfonate. Type: Grant.
Wet-grinding gypsum with polycarboxylates - United States ...
Polyphase gypsum binding agent and method of making it. High Pressure Suspension Grinder Heavy Industry . It is based on five years resarch on the traditional grinding mill, the High pressure suspension grinding mill got national patent muddy crag, basalt, gypsum. high-pressure suspension grinder, high-pressure . high-pressure suspension grinder from Henan …
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10TPH Gypsum Grinding Plant in Iran. 10TPH Gypsum Grinding Plant in Iran Powder making equipment adopts our company s exclusive patent products MTW series European type Trapezium Mill The whole line is designed to be reasonable and concise the craft is coherent and compact the equipment layout is compact the production is environmental and low ...
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Gypsum Grinding Marketplace Gypsum Grinding Patent >Gypsum grinding patent Gypsum grinding patent plaster is made from gypsum by grinding it to powder and then gently capping gypsum cement patentCMC testing...
EP2209749A1 - Wet-grinding gypsum with ... - Google Patents
Wet-grinding gypsum with polycarboxylates Info Publication number EP2209749A1. ... European Patent Office Prior art keywords feed grinding slurry dispersant particle size Prior art date 2007-11-15 Legal status (The legal status is an assumption and is not a legal conclusion.
US Patent for Pottery plaster formulations for the ...
Justia Patents Calcium Sulfate (e.g., Gypsum, Anhydrite, Plaster Of Paris, Etc.) US Patent for Pottery plaster formulations for the manufacture of plaster molds Patent ... Potassium sulfate and potassium sodium tartrate additives are prepared by grinding them such that no more than 10% of the material is retained on a 50 mesh sieve.
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Gypsum Grinding Patent. scoring device for gypsum board,scoring device for gypsum board production device patent citations (24) of a grinding wheel used in a machine for machining edges of plates of glass, .gypsum set accelerator,grinding gypsum rock with abrasive wheels does not produce a uniform rate of feed and it is essential that the plain ground land plaster be …
Method for finish-grinding cement in a roller mill plant ...
Examples of the two types of roller mills are known i.a. from EP patent application No. 112022 and DE patent specification No. 1757093. In a roller mill of above-mentioned kind, the clinker/gypsum mixture is subjected only to a transitory pressure between the grinding means, and the retention time in the roller mill per se is relatively short.
US Patent for Lump process alpha gypsum Patent (Patent ...
Justia Patents With Steam Or At Specified Temperature US Patent for Lump process alpha gypsum Patent (Patent # 4,309,391) ... then drying and grinding the product. In practice small lumps are preferred and long calcination cycles are required even to produce a 40-50 cc consistency product.
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gypsum grinding patent. USPatentfor Syntheticgypsum fertilizerproduct and method of makingPatent(Patent # 9,873,638 issued January 23, 2018) - JustiaPatentsSearch Syntheticgypsum fertilizerproduct and method of making Aug 8, 2013 - SUL4R-PLUS, LLC
Cement grinding media sorter and operating method thereof ...
Cement grinding media sorter and operating method thereof. (22) 23.09.2016. (43) 01.08.2018. (57) Summary of the corresponding patent WO2017051377 (A1): A cement grinding media sorter and its operating method, wherein the grinding media are alloy steel balls. The operating method comprises loading the grinding media; separating the scrap and ...
Manufacture of gypsum board from FGD gypsum - National ...
United States Patent 4502901 . Abstract: By-product gypsum, which is ... flash calcining said dried FGD gypsum to about 25% of the water of hydration producing FGD hemihydrate gypsum, grinding at least about 25% of said calcined gypsum to produce a Fisher surface area of material of at least about 2500 cm 2 /gm, ...
CN107417147A - A kind of gypsum ... - patents.google.com
the invention discloses a kind of gypsum powder calcination technology, following steps are specifically included：s1, choose material：it is advisable …
Gypsum Grinding Patent
Gypsum drying and/or burning plantPatent search . In the patent FR A described method of firing gypsum The method according to claim 1 characterized in that it further comprises a stage iiib grinding gypsum during stage movement iii 7 Installation 1 for drying and calcination of gypsum according to any one of claims 1 to 6 containing.
Apparatus and method for recycling gypsum wallboard ...
United States Patent 6164572 Abstract: An apparatus and method for recycling gypsum wallboard is described and claimed. Gypsum wallboard is formed from a gypsum core sandwiched between two sheets of heavy paper. The apparatus has a crushing means to crush the gypsum core of the wallboard and shred the paper covering.
US2913308A - Process for the production of ... - Google Search
The first commercially successful means of obtaining a calcined gypsum having a low consistency, and therefore a correspondingly high strength, was the process of Randel and Dailey, which was...
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Gypsum Grinding Patent cz-eu.eu. gypsum grinding patent. What we are doing is to give customers the most economical and suitable production line and maximize brand value. Get Price And Support Online; cement grinding with gypsum. Products include" cement grinding with gypsum ",grinding,flotation,classifier,etc.Up to now, with 500 mine EPC ...
US4238445A - Process for manufacturing gypsum board ...
In U.S. Pat. No. 4,117,070 there is described apparatus and processes for continuously treating calcined gypsum so as to lower the water demand and provide a …
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synthetic gypsum block plant for sale. arative gypsum block plant priceafbelectricite . synthetic gypsum block plant pricesepkidsnl. synthetic gypsum block plant supplier educationcarein Patent US Process for recycling gypsum-based waste Oct 29 2002 (F) grinding the mixed synthetic gypsum rock and cement clinker to form a granular to the cement manufacturer …
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Gypsum grinding ball mill alanglover.Gypsum powder machine stone crusher machine also, we supply you grinding mill and crushing machine for your gypsum mine business small gypsum crusheret price ball mill gypsum he ball mill is designed for grinding of clinker, gypsum read more--.Williams patent crusher offers a variety of gypsum mills.
US7861955B2 - Wet-grinding gypsum with polycarboxylates ...
Wet-grinding gypsum with polycarboxylates Download PDF Info ... 2007-11-15 Priority to US11/985,515 priority Critical patent/US7861955B2/en 2008-02-18 Assigned to UNITED STATES GYPSUM COMPANY reassignment UNITED STATES GYPSUM COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).