title: Reaction between gelled HCl and calcite or dolomite at high mineralization
metadata.name: dc.contributor.author
metadata.value: Andreev, Oleg V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Antonov, Sergey M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kiselev, Konstantin V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-01-05T13:27:24Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-01-05T13:27:24Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-09
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu04.2016.308
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/5871
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The paper is devoted to reactions of the interaction of gelled aqueous salt solutions (CNaCl =
  =15 wt %) of HCl (12 wt %) with CaCO3, Ca1.16Mg0.84(CO3)2 carbonate core minerals on the
  quasi-static conditions at a temperature of 10, 17, 25℃. Increase of HCl viscosity by xanthan
  gum, scleroglucan biopolymers and amidoalkylbetaine, reactions of acid-carbonate interaction
  take place in the diffusion region. The values of apparent activation energy Ea reactions between
  HCl with dolomite and calcite are determined by the structural and mechanical properties of
  the liquid phase. Viscosity of HCl is stable for more than 4 hours at t = 12℃, P = 10 MPa,
  CNaCl = 15 wt %. Viscosity of micellar solution HCl (12 wt %) + Amidoalkylbetaine (6,5 wt %)
  is equal to 109 mPa·s, at neutralization increases to more than 600 mPa·s. Initial micellar solution
  has 60 wt % of the micelles with a size in the range from 1 to 10 nm, 40 wt % of micelles
  have sizes 200–1000 nm. The sizes of micelles are increased to 2000–7000 nm, structural and
  mechanical properties of the solution are change. Homogeneous profile of dissolution of carbonate
  CaCO3, Ca1.16Mg0.84(CO3)2 after interaction with gelled HCl was imaged by electron
  microscope. Refs 20. Figs 5. Tables 2.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 4. Physics. Chemistry;Vol. 3 (61); Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: HCl solutions
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: gelled acid
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: viscosity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: acid treatment
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: activation energy of reaction
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: calcite
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: dolomite
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Reaction between gelled HCl and calcite or dolomite at high mineralization
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 08-Andreev.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/5871/1/08-Andreev.pdf
resources.format: Adobe PDF
resources.size: 1,9 MB