Sulfuric Acid → Calcium Sulfate

HRID 514653

反応式

HRID 514653 の反応式
C(=O)([O-])[O-].[Ca+2:5].[Ca].S(CCS(O)(=O)=O)(O)(=O)=O.[S:17]([CH2:21][CH2:22][OH:23])([OH:20])(=[O:19])=[O:18].[S:24](=[O:28])(=[O:27])([OH:26])[OH:25]>O>[S:24]([O-:28])([O-:27])(=[O:26])=[O:25].[Ca+2:5].[S:17]([CH2:21][CH2:22][OH:23])([O-:20])(=[O:19])=[O:18].[Ca+2:5].[S:17]([CH2:21][CH2:22][OH:23])([O-:20])(=[O:19])=[O:18]

参加物

8

反応物 5

HCID 1118Sulfuric AcidHCID 7866Isethionic AcidHCID 80321,2-Ethanedisulfonic AcidHCID 10112Calcium Carbonate2 回HCID 5460341Calcium

生成物 2

HCID 24497Calcium SulfateHCID 18784326Calcium isethionate

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

If calcium carbonate is used as a source of calcium, the sequence of addition needs to be altered. After ethionic acid is diluted with water and hydrolyzed into isethionic acid and sulfuric acid, calcium carbonate is carefully added the aqueous solution to form a slurry of calcium sulfate and calcium isethionate. Then calculated or excess amount of alkali metal sulfate is introduced into the reaction system to replace calcium in calcium isethionate with alkali metal in alkali metal sulfate.

後処理

  1. additionthe sequence of addition needs
  2. additionis carefully added the aqueous solution

出典と根拠

ORDレコード
ord-1a4b8eb569d64c58ade33933be02544e
出典データセット
uspto-grants-2015_08
特許番号
US09108907B1

関連ノート

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