US 2017/0073239 A1

Shape-controlled cement hydrate synthesis and self-assembly

(22) 06.05.2015

(43) 16.03.2017

(57) In some embodiments, the present disclosure pertains to methods of forming calcium-silicate-hydrate particles by mixing a calcium source with a silicate source. In some embodiments, the mixing comprises sonication. In some embodiments, the mixing occurs in the presence of a surfactant and a solvent. In some embodiments, the methods of the present disclosure further comprise a step of controlling the morphology of the calcium-silicate-hydrate particles. In some embodiments, the step of controlling the morphology of calcium-silicate-hydrate particles comprises selecting a stoichiometric ratio of the calcium source over the silicate source. In some embodiments, the formed calcium-silicate-hydrate particles have cubic shapes. In some embodiments, the formed calcium-silicate-hydrate particles have rectangu­lar shapes. In some embodiments, the formed calcium-silicate-hydrate particles are in the form of self-assembled particles of controlled shapes. Additional embodiments of the present disclosure pertain to compositions that contain the calcium silicate-hydrate particles of the present disclosure.

(71) William Marsh Rice University, Houston, TX (US)

(73) William Marsh Rice University, Houston, TX (US)

Related articles:

Issue 6/2018 US9963386 (B1)

Method of manufacturing hydrated lime

(22) 16.05.2017 (43) 08.05.2018 (57) A method of providing highly reactive hydrated lime and the resultant lime hydrate where an initial lime feed comprising calcium and impurities is first ground to...

more
Issue 5/2019 US 10 221 094 B1

Method of manufacturing hydrated lime

(22) 22.03.2017 (45) 05.03.2019 (57) A method of providing highly reactive hydrated lime and the resultant lime hydrate where an initial lime feed comprising calcium and impurities is first ground to...

more
Issue 7-8/2016 WO 2016/073000 A1

Liquid anti-shrinkage agent for cement­

(22) 07.11.2014 (43) 12.05.2016 (57) The present disclosure relates to a liquid agent that mitigates shrinkage of cement, particularly cement used in a hydrocarbon-producing well. The anti-shrinkage...

more
Issue 9/2015 EP 2 894 135 A1

Method of curing a gypsum calcination product

(22) 10.01.2014 (43) 15.07.2015 (57) A method of conditioning stucco comprises the steps of supplying a quantity of stucco particles to a reaction vessel, the stucco particles comprising calcium...

more
Issue 9/2016 WO 2016/115398 A1

Controlled process for precipitating calcium carbonate and vaterite precipitated calcium carbonate compositions formed by said process

(22) 14.01.2016 (43) 21.07.2016 (57) A process for converting gypsum into precipitated calcium carbonate including reacting a mixture comprising gypsum and a seed, a mineral acid, or both with at...

more